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Journal of Functional Morphology and Kinesiology, Volume 4, Issue 1

2019 March - 16 articles

Cover Story: Muscle-specific fatigue can be measured using twitch electrical stimulation and changes in muscle acceleration. As the muscle fatigues, the reduced force of muscle contractions corresponds to decreases in the size of the twitch accelerations. The figure shows representative acceleration values (resultant vector) for a participant at 2, 4, and 6 Hz. The advantage of this test is that it can be performed using an inexpensive triaxial accelerometer, and it does not require force transducers that would be difficult to place on the lower back. The large reductions in muscle-specific endurance of the lower back muscles in healthy adults suggest a target for therapy to reduce lower back pain and dysfunction. View this paper.
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Articles (16)

  • Protocol
  • Open Access
11 Citations
6,284 Views
19 Pages

Feasibility Study of the Secondary Level Active School Flag Programme: Study Protocol

  • Kwok W Ng,
  • Fiona McHale,
  • Karen Cotter,
  • Donal O’Shea and
  • Catherine Woods

Taking part in regular physical activity (PA) is important for young adolescents to maintain physical, social and mental health. Schools are vibrant settings for health promotion and the complexity of driving a whole-school approach to PA has not bee...

  • Article
  • Open Access
23 Citations
4,360 Views
9 Pages

Do the Fastest Open-Water Swimmers have A Higher Speed in Middle- and Long-Distance Pool Swimming Events?

  • Roberto Baldassarre,
  • Maddalena Pennacchi,
  • Antonio La Torre,
  • Marco Bonifazi and
  • Maria Francesca Piacentini

Background: It has been shown that the fastest open-water swimmers (OW-swimmers) increase significantly the speed in the last split of the open-water events. The aim of the present work was to determine if the fastest OW-swimmers have a higher speed...

  • Article
  • Open Access
6 Citations
6,907 Views
8 Pages

Organized Sports and Physical Activities as Sole Influencers of Fitness: The Homeschool Population

  • Laura S. Kabiri,
  • Augusto X. Rodriguez,
  • Amanda M. Perkins-Ball and
  • Cassandra S. Diep

Homeschool children may rely solely on organized sports and physical activities to achieve recommended levels of physical activity and fitness. The purpose of this study was to investigate differences in fitness levels between homeschool children who...

  • Article
  • Open Access
3 Citations
4,281 Views
7 Pages

Muscle-Specific Endurance of the Lower Back Erectors Using Electrical Twitch Mechanomyography

  • Kevin K. McCully,
  • Caio Moraes,
  • Sahil V. Patel,
  • Max Green and
  • T. Bradley Willingham

Lower back pain is a common symptom potentially associated with skeletal muscle dysfunction. The purpose of this study was to evaluate endurance in the lower back muscles of healthy participants using accelerometer-based mechanomyography. Methods: Yo...

  • Editorial
  • Open Access
35 Citations
6,945 Views
4 Pages

Osteoarthritis (OA) is a debilitating disease widespread in the world, having a negative impact on daily activities, especially in old age [...]

  • Article
  • Open Access
9 Citations
4,245 Views
7 Pages

Background: Cortisol is a steroid hormone that follows a distinct diurnal timeline; however, while healthy ranges exist, it not been determined whether or why individuals differ on baseline cortisol levels. The aim of this study was to test the anecd...

  • Article
  • Open Access
6 Citations
3,438 Views
22 Pages

Detection Accuracy of Soccer Players in Aerial Images Captured from Several Viewpoints

  • Takuro Oki,
  • Ryusuke Miyamoto,
  • Hiroyuki Yomo and
  • Shinsuke Hara

In the fields of professional and amateur sports, players’ health, physical and physiological conditions during exercise should be properly monitored and managed. The authors of this paper previously proposed a real-time vital-sign monitoring s...

  • Article
  • Open Access
4 Citations
4,137 Views
16 Pages

School-Based Intervention on Cardiorespiratory Fitness in Brazilian Students: A Nonrandomized Controlled Trial

  • Giseli Minatto,
  • Edio Luiz Petroski,
  • Kelly Samara da Silva and
  • Michael J. Duncan

Background: In response to the worldwide increasing prevalence of low cardiorespiratory fitness (CRF), several interventions have been developed. The aim of this study was to examine the effect of a school-based intervention on CRF in Brazilian stude...

  • Editorial
  • Open Access
2 Citations
3,196 Views
4 Pages

We are glad to introduce the eleventh Journal Club. This edition is focused on several relevant studies published in the last years in the field of exercise and osteoarthritis, chosen by our Editorial Board members and their colleagues. We hope to st...

  • Article
  • Open Access
7 Citations
3,633 Views
12 Pages

It’s about Time: Effects of Physical Exertion on Duration Estimates

  • Britton W. Brewer,
  • Lawrence O. Schwartz,
  • Allen E. Cornelius,
  • Judy L. Van Raalte,
  • Edmundo L. Urbina and
  • John S. Stubbs

Background: Task duration is a fundamental aspect of exercise, but little is known about how completed bouts of physical activity are perceived. Consequently, the purpose of the five experiments conducted for this investigation was to examine the eff...

  • Article
  • Open Access
19 Citations
9,597 Views
13 Pages

Analysis of Dental Malocclusion and Neuromotor Control in Young Healthy Subjects through New Evaluation Tools

  • Barbara Isaia,
  • Martina Ravarotto,
  • Paolo Finotti,
  • Matteo Nogara,
  • Giovanni Piran,
  • Jacopo Gamberini,
  • Carlo Biz,
  • Stefano Masiero and
  • Antonio Frizziero

The presence of a correlation between stomatognathic and postural systems has been investigated by different authors trying to identify a possible influence of dental occlusion on body posture and balance. The aim of this study was to evaluate the re...

  • Article
  • Open Access
13 Citations
5,760 Views
8 Pages

Background: In community-dwelling older adults, slow gait speed is linked to falls; however, little is known about the use of gait speed to predict falls in nursing home residents. The prevalence of risk factors for falls in nursing home residents is...

  • Article
  • Open Access
1 Citations
5,856 Views
9 Pages

Purpose: This article presents data challenging the widely held but untested view that concurrently playing mid-week Union of European Football Associations (UEFA) Europa League matches adversely affects domestic league performance. Method: Over 16 s...

  • Article
  • Open Access
4,160 Views
14 Pages

Detraining and Anabolic-Androgenic Steroid Discontinuation Change Calcaneal Tendon Morphology

  • Anderson José Santana Oliveira,
  • Lívia Larissa Batista e Silva,
  • Fabrício Reichert Barin,
  • Elaine Cristina Leite Pereira,
  • Heloisa Sobreiro Selistre-de-Araujo and
  • Rita De Cássia Marqueti

Several side effects of anabolic-androgenic steroid (AAS) administration associated with training are reported in the biomechanical properties of the calcaneal tendon (CT) of rats. Thus, the aim of the present study is to evaluate the effects of the...

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J. Funct. Morphol. Kinesiol. - ISSN 2411-5142