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Physiologia, Volume 5, Issue 4

2025 December - 22 articles

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Articles (22)

  • Review
  • Open Access
1 Citations
2,240 Views
41 Pages

The Significant Role of Physical Activity and Exercise in Health and Metabolic Diseases

  • George D. Dimitriadis,
  • Costas Chryssanthopoulos,
  • Anastassios Philippou and
  • Michael Koutsilieris

Physical inactivity, which currently dominates the lifestyles of most people, is linked to chronic metabolic diseases such as obesity, type 2 diabetes (T2D), hypertension, metabolic syndrome, and cardiovascular disease, all of which share insulin res...

  • Article
  • Open Access
1,500 Views
21 Pages

Height, Sex, and Sport as Correlates of Tendon Stiffness in Elite Athletes

  • Alejandro Bustamante-Garrido,
  • Sebastián Sepúlveda González,
  • Felipe Inostroza-Ríos,
  • Otávio de Toledo Nóbrega,
  • Bianca Miarka,
  • Mauricio Araya-Ibacache,
  • Felipe J. Aidar,
  • Esteban Aedo-Muñoz and
  • Ciro José Brito

Background/Objectives: Understanding the factors that influence tendon mechanical properties is essential for optimizing performance and preventing injuries in elite athletes. This study aimed to identify the strongest correlates of the biomechanical...

  • Review
  • Open Access
1 Citations
676 Views
20 Pages

This narrative review of rapid eye movement (REM) focuses on its primary etiology and how it fits into the larger framework of neurophysiology and general physiology. Arterial blood flow in the retina may be sensitive to the full overlying ‘wei...

  • Article
  • Open Access
690 Views
12 Pages

One Week of a Betalain-Rich Beetroot Concentrate Does Not Improve 4 km Time-Trial Performance but Impairs Repeated Sprint Cycling Performance in Trained Cyclists

  • Steven Vitti,
  • Meghan E. Smith,
  • Sean Killip,
  • Alyssa Sarkisov,
  • Grace Frattellone,
  • Craig Mattern and
  • Justin Faller

Purpose: We aimed to assess the effects of one-week betalain-rich beetroot concentrate (BRC) supplementation on high-intensity cycling performance in trained cyclists. Methods: Eighteen male (n = 15) and female (n = 3) cyclists (age: 38.83 ± 8...

  • Article
  • Open Access
687 Views
15 Pages

Validation of a Smartphone Application for Measuring Peak Torque During the Nordic Hamstring Exercise in Recreational Athletes

  • Amândio Dias,
  • Bruno Lopes,
  • Francisco Machado,
  • João Fonseca,
  • Ricardo Santos and
  • Rodrigo Alves

Background/Objectives: Hamstring injuries are highly prevalent in sports and often occur, particularly among recreational and professional athletes. Assessing eccentric hamstring strength is critical for injury prevention and rehabilitation, with iso...

  • Article
  • Open Access
1 Citations
750 Views
11 Pages

Background/Objectives: Hypertension is a leading cause of cardiovascular morbidity and mortality, particularly in older adults, pharmacological therapy is effective, but side effects and limited adherence highlight the need for non-pharmacological al...

  • Systematic Review
  • Open Access
1,886 Views
25 Pages

Background/Objectives: Osteoporosis is a global health issue characterized by decreased bone mineral density (BMD), which increases the risk of fractures in adulthood. Adolescence, particularly the pubertal stage, is a critical period for maximizing...

  • Review
  • Open Access
691 Views
17 Pages

Beyond Calories: Redox Interactions in Adipose Tissue That Lead to Metabolic Pathologies

  • Alfredo Miranda-Martínez,
  • Erika Rodríguez-Martínez,
  • Pamela Barragán-Reséndiz and
  • Selva Rivas-Arancibia

Adipose tissue is an organ with a high metabolic rate, functioning as a storage site for potential energy derived from food. It is a heterogeneous tissue composed of various cell types that respond differently to stimuli. Polyunsaturated fatty acids...

  • Review
  • Open Access
1 Citations
1,840 Views
11 Pages

Oral Health as a Determinant of Alzheimer’s Disease

  • Josh Bryan Landers,
  • Cody Walker,
  • John Teed,
  • Rian Mcfarlane and
  • Geoff Halversen

Oral health represents a complex interplay between local microbial ecology, host immune responses, and systemic physiology. Far from being an isolated entity, the oral cavity is the entry point of the gastrointestinal and respiratory tracts and harbo...

  • Review
  • Open Access
847 Views
13 Pages

The Systems Theory provides a valuable conceptual framework for analyzing biological complexity, particularly in oncology, where the multiple interactions between biological subsystems can influence tumor initiation, progression, and treatment respon...

  • Article
  • Open Access
794 Views
11 Pages

Perceptual Reorganization of Tinnitus Lateralization: A Clinical Marker of Multimodal Neuromodulation-Induced Plasticity

  • Bianca Rossi Botim,
  • Bruna Cabugueira,
  • Kariny Realino Ferreira,
  • Thaís Carvalho Oliveira,
  • Michelle Almeida Barbosa,
  • Gabriela Lopes Gama and
  • Alexandre Carvalho Barbosa

Background/Objectives: Tinnitus lateralization, a perceptual characteristic often neglected in clinical assessment, may reflect underlying auditory plasticity. This study aimed to investigate whether changes in tinnitus lateralization following a mul...

  • Article
  • Open Access
698 Views
25 Pages

Cerebral Oxygenation and Cardiac Responses in Adult Women’s Rugby: A Season-Long Study

  • Ben Jones,
  • Mohammadreza Jamalifard,
  • Mike Rogerson,
  • Javier Andreu-Perez,
  • Jay Perrett,
  • Ed Hope,
  • Lachlan Carpenter,
  • Tracy Lewis,
  • J. Patrick Neary and
  • Sally Waterworth
  • + 1 author

Background: Sport-related concussion is common in rugby union, yet female players remain underrepresented in research. This study examined seasonal changes in cerebral oxygenation, cardiac function, and concussion symptomology in adult female rugby p...

  • Systematic Review
  • Open Access
5,911 Views
19 Pages

Exploring Sex Activity Impact on Biological Biomarkers and Athletic Parameters in Sexually and Physically Active Healthy Adults: A Systematic Review of Clinical Trials

  • Diego Fernández-Lázaro,
  • Jesús Seco-Calvo,
  • José María Izquierdo,
  • Juan Mielgo-Ayuso,
  • Enrique Roche and
  • Gema Santamaría

Background: A sexually active lifestyle is generally associated with positive effects on physical condition and health. However, engaging in sexual activity prior to a sports competition could affect athletic performance. This systematic review exami...

  • Article
  • Open Access
5,772 Views
18 Pages

Background/Objectives: Binaural beat audio has gained popularity as a non-invasive tool to promote relaxation and enhance cognitive performance, though empirical support has been inconsistent. We developed a novel algorithm integrating real-time elec...

  • Brief Report
  • Open Access
1,725 Views
12 Pages

The Effects of Spermidine on Functional and Transcriptomic Markers in Human Primary Keratinocytes

  • Derick A. Anglin,
  • Madison L. Mattingly,
  • Nicholas J. Kontos and
  • Michael D. Roberts

Recent enthusiasm has surrounded the homeostatic roles that polyamines have in a variety of cell types. Thus, the purpose of this exploratory in vitro study was to determine how spermidine (SPD), a polyamine commonly consumed as a nutritional supplem...

  • Article
  • Open Access
1,818 Views
23 Pages

Background/Objectives: This study aimed to objectively assess fatigue levels using facial expressions. Methods: This study included 25 female nurses aged between 30 and 50 years. We compared their subjective and objective fatigue levels after a night...

  • Article
  • Open Access
1,358 Views
20 Pages

Background: The study of psychophysiological responses to disgust-evoking stimuli has long been neglected in favour of other emotional stimuli, especially those evoking fear. While the basic cascade of responses to a frightening stimulus is relativel...

  • Article
  • Open Access
2,968 Views
15 Pages

Effects of Acute Morning Melatonin Supplementation Versus Placebo on Cardiometabolic Responses to High-Intensity Interval Exercise: A Randomized Crossover Trial in Active Men

  • Naiara Ribeiro Almeida,
  • Diego Alves dos Santos,
  • Kaio Lages dos Santos,
  • Diego Ignácio Valenzuela Pérez,
  • Felipe J. Aidar,
  • Walesca Agda Silva Miranda,
  • Bianca Miarka,
  • Andreia Cristiane Carrenho Queiroz and
  • Ciro José Brito

Aims: The present study evaluated the acute morning effect of melatonin supplementation (5 mg) on cardiometabolic responses. Methods: For this purpose, 12 physically active men (22.1 ± 1.3 years; 1.7 ± 01 m; 74.7 ± 12.1 kg; 24.3...

  • Article
  • Open Access
4,684 Views
15 Pages

Effects of Respiratory Muscle Training on Performance and Inspiratory Strength in Female CrossFit Athletes: A Randomized Controlled Trial

  • Juliana Andrade Assis,
  • Lúcio Marques Vieira-Souza,
  • Diego Valenzuela Pérez,
  • Cristiano Diniz da Silva,
  • Carlos Fuentes Veliz,
  • Naiara Ribeiro Almeida,
  • Bianca Miarka,
  • Otávio Toledo Nóbrega and
  • Ciro José Brito

Background: The high-intensity demands of CrossFit induce respiratory muscle fatigue, potentially impairing performance via the metaboreflex. Respiratory muscle training (RMT) may mitigate this effect, but evidence in female athletes remains limited....

  • Article
  • Open Access
1 Citations
1,527 Views
10 Pages

Analysis of the Physiological Characteristics of Elite Male and Female Junior Rowers During Extreme Exercise

  • István Barthalos,
  • Zoltán Alföldi,
  • Imre Soós,
  • Anna Horváth Pápai,
  • Ádám Balog,
  • László Suszter and
  • Ferenc Ihász

Background: Rowing is a highly demanding endurance sport, requiring simultaneous work of approximately 70% of the body’s muscle mass and the combined contribution of aerobic and anaerobic energy systems. Objective: This study aimed to analyze t...

  • Review
  • Open Access
1 Citations
4,322 Views
32 Pages

The Serotonergic System and Its Role in Thermoregulation

  • Andrei-Ionuţ Negoiţă,
  • Bogdan Amuzescu,
  • Dan Florin Mihăilescu and
  • Cristina Bordea

Serotonin (5-hydroxytryptamine—5-HT) is an important neurotransmitter that exerts a remarkably large array of biological roles in the central nervous system and at the body level. It is involved in generating emotions, being a natural mood stab...

  • Review
  • Open Access
1,394 Views
15 Pages

Intracellular oxidation–reduction (redox) potential is a key factor regulating various physiological phenomena in the cell. Monitoring this potential change is therefore important for understanding physiological homeostasis in cells. Herein, we...

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Physiologia - ISSN 2673-9488