The Impact of Aerobic Dance Intervention on Postural Balance in Children: A Randomized Controlled Trial

This study aimed to investigate the impact of an 8-week aerobic dance intervention on postural balance in children. Forty-one children, aged 9 to 11, were randomly assigned to either an aerobic dance group (ADG) or a control group (CG) from a primary school. Postural balance was assessed using center of pressure (CoP) excursions before and after the 8-week intervention period. Evaluations were conducted on both firm and foam surfaces in bipedal and unipedal stances under open-eyes (OE) and closed-eyes (CE) conditions, as well as on both medial–lateral (ML) and anterior–posterior (AP) surfaces in a bipedal stance under OE conditions. The ADG exhibited significantly decreased CoPVm values during firm bipedal CE, unipedal OE, foam bipedal OE and CE, and foam unipedal OE (p < 0.005). This study suggests that aerobic dance intervention improved postural balance in children, showcasing adaptability and improved stability under various conditions.


Introduction
Achieving and maintaining postural balance is a crucial element of human physiological function, involving a complex interplay between sensory input and motor responses.The coordination of subconscious reflex reactions, particularly involving visual, proprioceptive, and vestibular systems, is fundamental for achieving optimal postural balance [1].This equilibrium serves as a foundational element for upright posture, coordinated movements, and successful adaptation to environmental changes, playing a crucial role in facilitating engagement in daily activities and basic motor skills [2,3].
The developmental journey, particularly from the first to the seventh year of life [4-6], with some researchers extending this period to the eighth or ninth year [7], emerges as a crucial phase.During this period, there is a pivotal emphasis on neuromuscular coordination and sensory integration, establishing a solid foundation for postural balance [8].The subsequent period introduces a distinct phase marked by neurohormonal changes, temporarily impairing postural control due to the intricate interaction between hormonal Children 2024, 11, 573 2 of 15 fluctuations and the continuous maturation of physiological systems [8,9].This transitional period witnesses a gradual decline in the function of the balance system, persisting until approximately the thirtieth year of life [10].Consequently, interventions aimed at maintaining or enhancing postural balance during this critical period are crucial.
In the field of pediatric postural balance research, special emphasis is placed on studying children as they progress through the various stages of development.This focus is important due to the significant changes in postural control that occur during childhood and adolescence.Physical activity is widely recognized for its role in enhancing physical fitness [11,12].The current research places a significant emphasis on comprehending how physical activity influences postural balance during various developmental stages.Indeed, engaging in physical activity stimulates sensory information integration, strengthening the connection between visual, proprioceptive, and vestibular systems [13,14], ultimately refining motor responses and improving postural balance [15].It has been found that regular physical activity interventions positively affect postural balance in children aged between 7 and 13 [16].In addition, better physical fitness in children and adolescents correlates with improved postural balance [17].Another study also found that active children, compared to their sedentary counterparts, exhibit superior postural balance, suggesting that physical activity contributes to its efficient development [18].
Aerobic dance, a motivating physical activity that has gained popularity in recent decades, stands out as a promising avenue [19].An aerobic dance program is not only easily designed by physical education teachers but is also generally enjoyable for students, promising to foster intrinsic motivation and enhance the enjoyment of physical education classes [20].This multisensory training requires participants to integrate various sensory cues to position their bodies in space [21], making it potentially effective for improving postural balance in children.The complex choreography, involving sagittal and straddling steps, engages multiple muscle groups, requires rhythmic coordination, and can be sustained for at least 10 min, in which balance, locomotion, and agility are needed [22].A plyometric lunge was included with the expectation of improving muscle strength in the lower extremities [23,24].The inclusion of a plyometric lunge aims to improve lower extremity muscle strength [22,23].This enhancement, particularly in the lower extremities, within the aerobic dance program holds the potential for the development of stabilizing muscles, fostering greater stability and control during various postural tasks.
Previous studies on aerobic dance in children and adolescents have demonstrated its potential to positively impact various aspects.Improvements have been demonstrated in various aspects, including body image dissatisfaction, executive functions, stress levels, motivation, self-esteem, academics, behavior, and social skills, following aerobic dance interventions [20,[25][26][27][28][29][30].Some studies noted limitations, such as short intervention durations [25] and reliance on self-report measures [20,25,28].In addition, while these studies have provided valuable knowledge about the psychological and cognitive benefits of aerobic dance interventions, there remains a notable gap in the literature regarding their effects on physical outcomes, particularly postural balance.Understanding the influence of aerobic dance on postural balance is crucial, especially for children in their developmental stages, as it plays a significant role in their overall physical well-being and motor development.
While previous intervention studies have demonstrated aerobic dance's capacity to actively control body posture and enhance core stability, primarily in older individuals [31][32][33], there is a surprising lack of research focusing on its effects on postural balance in children.Several studies have delved into various dance programs and their impact on children's postural balance.One study integrated sports dance into fitness training, resulting in improvements in posture, muscle strength, and balance [34].Another study focused on creative dance, revealing enhancements in proprioception [35].Similarly, ballet training was associated with improved proprioception, postural balance, and rhythmic synchronization [36,37].Furthermore, a modern dance program enhanced both static and dynamic balance in girls [38].Despite these findings, no study has yet explored the effects of aerobic dance on children's postural balance.
Investigating the impact of aerobic dance on postural balance in children, particularly under various sensory manipulations, such as stances, eye conditions, and surface types, is of significant importance.Bipedal and unipedal stances are fundamental in evaluating postural balance, with unipedal stance imposing greater postural demands and requiring enhanced neuromuscular control [39].Moreover, open-and closed-eyes conditions are essential in examining the influence of visual feedback on postural balance, with open open-eyes (OE) condition allowing individuals to use visual cues to maintain balance and closed-eyes (CE) condition challenging individuals to rely more on proprioceptive and vestibular inputs [40,41].Furthermore, different surface types, such as firm, foam, and seesaw surfaces, present varying levels of stability.While firm surfaces provide a stable surface, foam surfaces introduce instability, requiring individuals to make finer adjustments in weight distribution and joint movements to stabilize [42].Also, seesaw surfaces further challenge individuals by introducing dynamic movements that necessitate continuous adjustments in response to shifting weight distribution [43].Systematically varying sensory conditions allows this study to discern the effects of aerobic dance on the relationship between sensory inputs and motor responses during postural control tasks.Understanding how these factors interact can provide information regarding the potential benefits of aerobic dance as an intervention for enhancing postural balance in this age group.
This study contributes to our understanding of the benefits of aerobic dance on physical outcomes, particularly postural balance, in children.The findings have broader implications for physical education programs, highlighting the importance of integrating dynamic and rhythmic activities.These activities not only enhance enjoyment, motivation, and pleasure but also promote motor skill development and improve postural balance.By fostering a positive attitude towards physical activity from an early age, aerobic dance interventions can help instill lifelong habits of physical fitness and promote a healthy lifestyle.Therefore, this study aims to investigate the impact of an aerobic dance intervention on postural balance in children.We hypothesize that participation in the aerobic dance program will lead to significant enhancements in postural balance under various sensory manipulations among this age group.

Participants
The sample size was calculated using the G*Power 3.1 software (Franz Faul-University of Kiel, Kiel, Germany) [44].We set the statistical probability value or α at 0.05, statistical power at 0.80, and the non-sphericity correction = 1.Based on the previous literature [32] and discussions between the authors, we estimated the effect size for this research at 0.4.The initial sample size was calculated to be 46.
The selection of participants underwent a meticulous three-step screening process.Initially, 47 children aged 9 to 11 from a primary school lacking scheduled physical education classes were enrolled.In the second stage, 43 children meeting specific inclusion and exclusion criteria were chosen.A pediatrician, applying Tanner's (1962) criteria, categorized them as pre-pubertal (stage 1).Inclusion criteria were having a middle socio-economic status, which was determined using parents' income, education level, and occupation; being free of physical or mental conditions that could impact pre-and post-testing; having no history of locomotor surgeries; the absence of respiratory dysfunctions; having no visual or auditory impairments; and having no cardiovascular or metabolic disorders.These details were gathered from the school's enrollment database.In the final screening, two children were excluded for failing to meet pre-training measures or being absent during familiarization or pre-training test sessions.This resulted in a final study cohort of 41 children.Participants were randomly assigned to aerobic dance (ADG) and control (CG) groups (Table 1).None of the participants reported engagement in structured physical activity or exercise programs, and all indicated a low level of physical activity based on responses to the Physical Activity Questionnaire for Children (PAQ-C) [45].
Following a comprehensive explanation of procedures, including potential risks and benefits, children provided their assent, and their parents or legal guardians provided written informed consent.This study was conducted with adherence to the principles of the Declaration of Helsinki and received approval from the local ethics committee.

Study Design
This study was designed as a randomized controlled training intervention, in which participants were systematically assigned to either the ADG or the CG.Throughout the intervention, the ADG underwent an 8-week aerobic dance program integrated into their physical education classes at school.This program, which was carefully conducted by an aerobic dance instructor with extensive experience, aimed to enhance participants' physical fitness and coordination.Simultaneously, the CG refrained from engaging in any physical education or structured physical training, continuing with their regular daily activities throughout the same 8-week period.All aerobic dance sessions for the ADG were supervised by a qualified instructor specializing in aerobic dance, ensuring the safety and proper execution of exercises.The sessions followed a thoughtfully structured sequence of increasing difficulty levels to minimize the risk of injuries.To maintain the experimental conditions, participants across both groups were explicitly instructed not to engage in any physical activity during the entire duration of the experiment.Participants underwent a familiarization session with all the study tests and procedures two days before the experimental protocol began.The familiarization with CoP sway measurements lasted about 10 min to allow the participant to try all postural balance conditions with 1-2 min of rest.

Intervention
The aerobic dance program for the ADG took place over 8 weeks, including two 45 min sessions per week.These sessions were carried out in a well-equipped aerobics room, included dance exercises of moderate to vigorous intensity, and were aligned with specific objectives detailed in Table 2. Morning sessions took place between 9:00 a.m. and 9:45 a.m., starting with a standardized rhythm and a 10 min warm-up.This warm-up involved simple movements of the upper and lower limbs, as well as stretching exercises, maintaining consistency throughout the training period.The core of each aerobic session consisted of 30 min of continuous aerobic dance exercises, divided into three separate dance situations lasting 10 min each.After the main exercise routine, there was a 5 min recovery period, including relaxation exercises accompanied by slow, rhythmic music.During these sessions, participants learned four new aerobic dance steps, gradually building a small routine.At the end of each session, this routine was repeated two or three times without interruption, serving to both reinforce and assess choreographic learning.Music played a central role in modulating exercise intensity.The warm-up phase featured music with an intensity of 100 beats per minute.During the first six weeks of the program, the intensity of the main exercise varied between 60% and 75% of the maximum heart rate, with the accompanying music set at 125-130 beats per minute.Subsequently, from weeks seven to fourteen, the intensity increased to 75 to 85 percent of the maximum heart rate, with music set at 135 to 145 beats per minute.Over the past two weeks, the intensity has gradually decreased to 60 to 70 percent of the maximum heart rate, with music set to 130 beats per minute.The entire tempo of the music was meticulously controlled using a CD player equipped with a speed controller.

Measurements
Participants were asked to maintain their static postural balance barefoot as much as possible on a static stabilometric platform (PostureWin© Techno Concept ® , Cereste, France; 40 Hz frequency, 12-bit A/D conversion) in two postural conditions.In the bipedal stance condition, the participants' legs were straight, and the (30 • ) configurations were suggested as feet position with the heels slightly apart (3 to 5 cm).In the unipedal stance condition, participants stood on their dominant leg, which was used to kick a ball placed on the floor in front of them.Participants stood on the platform under three different surface conditions, including a firm surface (the rigid surface of the force platform), a foam surface (surface consisted of a foam block [466 mm length × 467 mm width × 134 mm height above ground] with a density of 21.3 kg/m 3 and an elastic modulus of 20.900 N/m 2 mounted on the rigid surface of the force platform) [42], and a seesaw surface (radius 55 cm and arrow of 6 cm, positioned on the platform either in the ML or AP directions) [46].The CoP sways of each participant were recorded under the following conditions: firm bipedal-OE, firm bipedal-CE, firm unipedal-OE, firm unipedal-CE, foam bipedal-OE, foam bipedal-CE, foam unipedal OE, ML seesaw bipedal OE, and AP seesaw bipedal OE.The order of the postural conditions was counterbalanced.The participants were instructed to refrain from using their arms for balance during the recording sessions and to keep them alongside their bodies.The experimenter was present to ensure security, but no additional assistance was provided.Following the French Posturology Association norms, the duration of each trial was standardized to 25.6 s.A total of three trials was conducted for each experimental condition, and trial invalidation only occurred if there was a complete loss of balance.The best of three trials was analyzed to obtain a representative measure of postural behavior.To prevent fatigue, a 1 min resting interval was included between trials, during which participants were required to sit comfortably in a chair.
The selected parameter to evaluate the participants' postural balance was the CoP mean velocity (CoP Vm ).The CoP Vm , expressed in mm/s, represented the sum of the accumulated CoP displacement divided by the total time of the measurement.This parameter reflects the efficiency of the postural control system and is considered the measurement with the greatest reliability among trials [47].

Statistical Analysis
Data were analyzed using the program SPSS 25.0 (Statistical Package for the Social Sciences Inc., Chicago, IL, USA).The 95% confidence interval (CI) was calculated for means.Following the confirmation of data normality through the Shapiro-Wilk test, a series of mixed-model repeated measures ANOVAs were conducted to assess the impact of various factors on CoP Vm values.The assumption of sphericity was confirmed for each ANOVA using Mauchly's test.The initial four-way mixed-model repeated measures ANOVA (Group × Stance × Vision × Intervention) was employed to investigate the influence of group (ADG/CG), stance (bipedal/unipedal), vision (OE/CE), and intervention (Before/After) factors on the CoP Vm values.Moreover, a four-way mixedmodel repeated measures ANOVA (group × surface × vision × intervention) examined the impact of group (ADG/CG), surface (firm/foam), vision (OE/CE), and intervention (before/after) on the CoP Vm values.Furthermore, a three-way mixed-model repeated measures ANOVA (group × surface × intervention) was used to assess the effect of group (ADG/CG), surface (firm/foam/seesaw ML/seesaw AP), and intervention (before/after) on the CoP Vm values.A four-way mixed-model repeated measures ANOVA (group × surface × stance × intervention) investigated the influence of group (ADG/CG), surface (firm/foam), vision (OE/CE), stance (bipedal/unipedal), and intervention (before/after) on the CoP Vm values.To determine whether the statistically significant differences found were practically significant, the effect size of each outcome measure was calculated.The partial eta squared (ηp 2 ) formula was calculated for the main effects and interactions (small: 0.01 < ηp 2 < 0.06; moderate: 0.06 < ηp 2 < 0.14; large: ηp 2 > 0.14), and the Cohen's d was calculated for the pairwise differences (trivial: d < 0.2; small: 0.2 ≤ d < 0.5; moderate: 0.5 ≤ d < 0.8; large: d ≥ 0.8) [48].Bonferroni adjustment for multiple comparisons was conducted.The alpha level of statistical significance was set at p < 0.05.
Before the training intervention, the Bonferroni test did not reveal any statistically significant differences between the ADG and CG on the CoP Vm values.After the training intervention, the Bonferroni test demonstrated statistically significant lower CoP Vm values for the ADG compared to the CG only in foam bipedal OE, firm unipedal OE, and seesaw ML bipedal OE (See Table 3).In the ADG, the Bonferroni test revealed a significant decrease in CoPVm values after compared to before the training intervention, specifically in firm bipedal CE, firm unipedal OE, foam bipedal OE, foam bipedal CE, seesaw ML bipedal OE and in the seesaw AP bipedal OE (see Table 3, Figure 1).No significant difference was observed in the CG.Before and after the training intervention, the Bonferroni test revealed that visual removal significantly increased the CoPVm values under both the firm bipedal and unipedal conditions in the ADG (bipedal/before: p = 0.001, d = 1.34; bipedal/after: p = 0.04, d = 0.69; unipedal/before: p < 0.001, d = 2.66; unipedal/after p ≤ 0.001, d = 3.15) and in the CG (bipedal/before: p < 0.001, d = 1.35; bipedal/after: p ≤ 0.001, d =1.02; unipedal/before: p < 0.001, d = 2.28, unipedal/after: p ≤ 0.001, d = 2.10), as well as under the foam bipedal condition in both the ADG (before: p < 0.001, d = 1.49; after: p < 0.001, d = 1.67) and CG (before: p < 0.001, d = 1.59; after: p < 0.001, d = 1.10) (Figure 1).

Discussion
The objective of this study was to explore the impact of an aerobic dance intervention on postural balance in children.Postural balance, a crucial aspect of human physiological function, relies on the relationship between sensory inputs and motor responses.The coordination of subconscious reflex reactions, mediated by the visual, proprioceptive, and vestibular systems, forms the basis for maintaining an upright posture, executing coordinated movements, and adapting to environmental changes [49].The investigation of specific interventions, such as aerobic dance, becomes essential for understanding their influence on postural balance, particularly during critical developmental phases.This study's results showed a decrease in CoP Vm values after the intervention, within the ADG across various postural balance conditions.This decrease indicates an improvement in postural balance after the aerobic dance intervention, particularly in challenging conditions.Our findings align with prior studies indicating that various forms of dance, such as aerobic dance, contribute to postural balance enhancement in different populations [22,[50][51][52].
Within the ADG, participants demonstrated a decrease in CoP Vm values under the firm bipedal CE condition.These findings suggest that individuals who underwent aerobic dance training exhibited an enhanced ability to maintain postural balance, even in the absence of visual cues.This improvement highlights the adaptability of sensory systems, especially proprioception and vestibular function.Proprioception, which governs the body's awareness of its position in space [53], and vestibular function, which is responsible for detecting head movements and spatial orientation, are pivotal for maintaining balance [54].Indeed, aerobic dance routines, which are characterized by dynamic and rhythmic sequences, demand continuous adjustments in response to changing positions and sequences.This constant need for adaptation stimulates the central nervous system to refine its ability to process and integrate sensory information from sources such as vision, proprioception, and the vestibular system [55,56].One key aspect of this adaptation is the enhancement of proprioceptive awareness [57].The diverse choreography and weight-shifting movements inherent in aerobic dance prompt participants to develop a heightened sense of the relative positions of their body parts [57].This heightened proprioception allows for more accurate adjustments in weight distribution and limb positioning, contributing to improved postural adjustments, particularly in scenarios in which visual cues are limited [57].In addition, aerobic dance often involves movements that stimulate the vestibular system [58], which is responsible for detecting head movements and spatial orientation.The varied surfaces, spins, turns, and dynamic shifts in body orientation challenge participants' vestibular function [58][59][60].This suggests that aerobic dance training may induce adaptive changes in the vestibular system, increasing sensitivity to head movements and improving spatial orientation.This, in turn, contributes to more effective postural responses and balance.Moreover, the dynamic and varied nature of aerobic dance routines provides continuous balance challenges that demand constant adjustments in muscle activity and joint coordination [61,62].Regular participation in such activities likely enhances neuromuscular coordination, improving the ability to respond to perturbations and ultimately contributing to a more stable postural balance.The observed improvements in postural balance following aerobic dance training can be seen as a manifestation of neuroplasticity [63,64], reflecting the brain's capacity to adapt and reorganize itself in response to sensory input.Dance, as a sensorimotor activity, stimulates multiple layers of the neural system, including those involved in motor planning and execution, sensory integration, and cognitive processing.This stimulation leads to enhanced functional connectivity between the basal ganglia, cerebellum, and prefrontal cortex [65].The multifaceted sensory demands of aerobic dance likely trigger neuroplastic changes [21] that optimize the efficiency of sensory processing and motor responses, further refining postural balance.
However, the lack of a significant difference under the firm unipedal conditions with CE may suggest that aerobic dance training might not have had a substantial impact on postural balance in the absence of visual input on challenging stance.This result could be influenced by the intricate interplay between proprioceptive and vestibular mechanisms, with visual input potentially playing a more dominant role in this specific challenging condition (unipedal, CE).It is important to note that in the context of firm bipedal with OE, when participants were standing on a firm surface with both feet and their eyes open, there was a lack of change in the CoP Vm values following the aerobic dance intervention.This may imply that under these particular conditions, the intervention did not induce a measurable improvement in postural balance.These results underscore the specificity of the aerobic dance training effects on postural balance, highlighting improvements in certain sensory conditions while revealing potential limitations in others.These findings contribute to a more nuanced understanding of how aerobic dance interventions influence postural balance under varying sensory challenges.
The observed improvement in postural balance under foam bipedal OE and CE and foam unipedal OE conditions in the ADG following an 8-week intervention suggests the efficacy of aerobic dance training in enhancing stability on an unstable surface.The decrease in CoP Vm values implies improved balance on an unstable surface, reflecting the benefits of aerobic dance training in challenging sensory environments.Indeed, aerobic dance likely promotes greater joint proprioception [66,67], leading to increased joint position sense and better awareness of limb movements.This heightened proprioceptive acuity facilitates more accurate adjustments in response to the dynamic and unpredictable nature of the dance routines [68], contributing to enhanced postural stability on an unstable surface.Furthermore, the improved postural balance on an unstable surface after aerobic dance training may be due to the development of anticipatory postural adjustments [69,70].In fact, the nature of aerobic dance, with its dynamic and rhythmic sequences, necessitates participants to anticipate and prepare for upcoming movements.A study on synchronized activity in the prefrontal cortex during anticipation of visuomotor processing found that synchronized oscillatory networks in the prefrontal cortex are involved in top-down anticipatory mechanisms that facilitate subsequent processing [71].This suggests that anticipation likely stimulates the prefrontal cortex, leading to enhanced planning and execution of postural adjustments in anticipation, further refining postural balance.The cognitive processes involved in anticipating and responding to the next dance step may translate to improved predictive postural balance, allowing individuals to better adapt to the challenges posed by an unstable surface.Furthermore, the continuous sensory-motor challenges inherent in aerobic dance may contribute to the refinement of the sensorimotor integration process [72], in which the brain becomes more adept at processing and using sensory information for effective motor responses, ultimately enhancing postural balance on unstable surfaces, like a foam surface.
The results of this study showed a significant decrease in CoP Vm values within the ADG after the training intervention under the ML and AP seesaw in a bipedal stance with OE condition.This suggests an improvement in postural balance during seesaw movements in both side-to-side (ML) and front-to-back (AP) directions.The improvement in postural balance during these dynamic movements indicates a more refined and adaptable response to the demands of the dance intervention, reflecting the nuanced adjustments in postural control and balance.This aligns with the idea that dance, especially aerobic dance, or dance in general, can lead to improved proprioception, enhanced postural stability, and a more sophisticated response to dynamic and challenging movement patterns, ultimately contributing to better postural control and balance [68,[73][74][75][76].Moreover, the rhythmic and coordinated nature of aerobic dance routines requires participants to engage multiple muscle groups simultaneously, promoting overall muscle strength and endurance [32,62].This muscular development contributes to greater stability during challenging movements [77].
In addition, the constant changes in direction and speed inherent in aerobic dance routines challenge the vestibular system [32,78], which plays a key role in balance and spatial orientation.This can challenge the body to adapt quickly to different stimuli, improving proprioception, coordination, and postural balance in challenging dynamic movements such as ML and AP seesaw bipedal conditions [79].
The result of this study revealed lower CoP Vm values in the OE compared to the CE condition, regardless of group, intervention, stance, or surface factors.The results indicate that visual information plays a primary role in influencing postural control, and the lack of visual feedback disrupts the mechanisms involved in maintaining balance.In addition, when transitioning from a bipedal stance to a more challenging unipedal stance or from a firm to a foam surface, significant increases in CoP Vm values were observed, regardless of the group or intervention factors.These elevated CoP Vm values suggest that individuals faced greater difficulties in maintaining postural balance under these challenging postural conditions compared to the relatively easier task of balancing on both legs in the firm bipedal condition [80].The results emphasize the important role of postural and surface conditions in influencing postural balance in this population.Indeed, when individuals shift from a stable bipedal stance to a unipedal stance or to standing on a foam surface, the demands on their postural control system increase significantly [80,81].
It is essential to acknowledge certain limitations in this study.While our study demonstrated the positive impact of 8 weeks of aerobic dance on children's postural balance, further exploration into the lasting effects of such interventions is needed.Longitudinal studies could assess whether improvements in postural balance observed during the intervention period persist over time and whether they could potentially reduce the risk of falls or injuries while also enhancing physical performance in various activities.Additionally, investigating the potential long-term effects of aerobic dance interventions lasting beyond 8 weeks may reveal even greater benefits.Moreover, comparing the effects of aerobic dance with those of other physical activities, such as traditional sports, could provide valuable information into the most effective training modalities for promoting postural balance and overall physical development in children.Furthermore, expanding the demographic scope of future studies to include a more diverse range of participants in terms of age, ethnicity, socio-economic status, and health profiles would enhance the generalizability of the findings.As well, incorporating more diverse physical conditions and a larger sample size could offer a more comprehensive understanding of the diverse benefits of aerobic dance.In addition, this study did not directly investigate the underlying mechanisms responsible for the observed improvements in postural balance following aerobic dance training.Future studies should incorporate additional methodologies, such as electromyography, or other physiological measures, to delve into the intricate mechanisms involved in the neuroplastic changes, sensory adaptations, and motor responses associated with aerobic dance training.Another limitation of our study is the absence of formal tools specifically designed to objectively evaluate exercise safety and execution.While our aerobic dance sessions were supervised by a qualified instructor with extensive experience, the use of standardized assessment tools could have provided additional objective measures of safety and effectiveness.Incorporating such tools in future studies would enhance the robustness of our findings and provide additional assurance regarding exercise safety and effectiveness.

Practical Implications
The present study aimed to explore the impact of an aerobic dance intervention on postural balance in children, focusing on the relationship between sensory inputs and postural responses.The results demonstrated significant improvements in postural balance following the intervention, particularly under challenging conditions, such as unipedal stances, foam surfaces, and dynamic seesaw movements.The theoretical implications of our findings lie in elucidating the mechanisms underlying the observed improvements in postural balance.Engaging in dynamic and rhythmic activities likely induced neuroplastic changes that optimized sensory processing and motor coordination, leading to enhanced postural balance.These findings contribute to our understanding of how sensorimotor activities like aerobic dance modulate neural pathways involved in postural control in children.Moreover, our study offers significant practical implications for educators and healthcare professionals.By demonstrating the adaptability of sensory systems and the effectiveness of aerobic dance in enhancing postural balance, our findings underscore the importance of incorporating such activities into physical education programs.This adaptability is significant in real-life situations in which children may encounter diverse and unpredictable environmental conditions, promoting motor skill development and enhancing postural balance.Healthcare professionals can also use aerobic dance interventions in clinical settings to address postural balance problems in children.

Conclusions
In conclusion, this study aimed to investigate the impact of aerobic dance intervention on postural balance in children.The findings revealed a significant decrease in CoP Vm values within ADG, particularly in challenging conditions.The ADG showed decreased CoP Vm values under firm bipedal CE, unipedal OE, foam bipedal OE and CE, and foam unipedal OE conditions, indicating enhanced postural balance.In seesaw movements, both in the ML and AP directions, the ADG exhibited decreased CoP Vm values, indicating refined postural balance during dynamic movements.These results emphasize the positive impact of aerobic dance on postural balance in children aged between 9 and 11, showcasing adaptability and improved stability under various conditions.Informed Consent Statement: Informed consent was obtained from all subjects and/or their legal guardian(s).

Table 1 .
Participant characteristics, expressed as means and SD.

Table 2 .
Session objectives for the aerobic dance training program.
5 -To proficiently execute Sequence A, encompassing specific steps such as Marching, Mambo, V Step, and Basic Step.-To memorize step sequences and associated cues at 125-130 BPM, ensuring accurate synchronization of footwork with the music.6 -To replicate Sequence B, consisting of movements like forward slap and lunge, to reinforce motor learning and coordination.7 -To perform Sequence C, featuring steps like step touch and heel step, to further enhance motor coordination and execution proficiency.8 -To engage in collaborative group work aimed at designing and executing a cohesive sequence of 4 basic step blocks at a tempo range of 135-145 BPM, emphasizing collective synchronization and cohesion in performance.9 -To execute a series of 2 basic step blocks for each movement at 135-145 BPM, demonstrating accurate recall of steps and cues while maintaining synchronization with the music tempo.10 -To repeat the performance of a sequence of 2 basic step blocks for each movement at 135-145 BPM to consolidate motor skills and proficiency.11 -To design and execute an intergroup sequence comprising 2 blocks at 135-145 BPM, focusing on seamless transitions and coordination between participating groups.12 -To integrate previously learned sequences into a unified performance block, incorporating arm movements at 135-145 BPM to enhance expressiveness and fluidity in movement execution.

Table 3 .
Comparative analysis of center of pressure mean velocity values before and after the training intervention in aerobic dance group (ADG) and control group (CG) under visual (open and closed eyes (OE, CE)), postural (bipedal, unipedal), and surface (firm, foam) conditions.

means ± SD, (95% CI) means ± SD, (95% CI) ADG Before/After CG Before/After After ADG/CG CoP Vm (mm/s)
In the ADG, the Bonferroni test revealed a significant decrease in CoP Vm values after compared to before the training intervention, specifically in firm bipedal CE, firm unipedal OE, foam bipedal OE, foam bipedal CE, seesaw ML bipedal OE and in the seesaw AP bipedal OE (see Table3, Figure1).No significant difference was observed in the CG.