Exercise Science Commons^™

You’Re Too Slow! Self-Selected Volitional Efforts Reveal Unexploited Neuromuscular Reserve Capacity Compared To Maximal Efforts During Fatiguing, Load Equated Resistance Exercise, Brian Benitez

Theses and Dissertations--Kinesiology and Health Promotion

This investigation examined how movement intent influences neuromuscular excitation strategies during fatiguing resistance exercise, comparing maximal intended concentric efforts versus self-selected volitional efforts during load-equated Smith machine back squat exercise to quantify reserve capacity and characterize underlying neuromuscular mechanisms. Twenty-three resistance-trained participants (12 males, 11 females) completed a repeated-measures design, with replication, across six visits, performing smith machine back squat repetitions-to-failure at 70% 1RM under maximal intent (accelerate rapidly) and volitional intent (self-selected effort) conditions. Maximal voluntary isometric contractions used rapid (instantaneous 10-second effort) and ramp (5-second build-up, 5-second maximal) protocols. Surface electromyography (sEMG) was recorded from vastus lateralis and …

Proactive Use Of Perturbation Training On Balance And Posture Control In Geriatric Rehabilitation- An Experimental Study, Reema Joshi, Kinjal Shah

Chulalongkorn Medical Journal

Background:

Ageing is a complex process involving a range of variables that interact to cause deterioration of various physiological functions.

Objectives:

Study attempts to find effect of Perturbation training on postural control upon Centre of Gravity (COG) sway velocity in older individuals using modified-Clinical Test of Sensory Integration on Balance (mCTSIB) component on NeuroCom Balance master® and Timed up and go(TUG) test.

Methods:

An experimental study, employing a pre-post intervention model, involved 30 individuals aged 65-85 years with mild to moderate fall risk was conducted at Tertiary Hospital, Pune from August 2022 to January 2023. Perturbation Training was given …

Factors Affecting Sport-Related Concussion Non-Disclosure In Women's Rugby-A Multi-Country Qualitative Analysis, Lisa Ryan, Ed Daly, Katherine Hunzinger

Department of Exercise Science Faculty Papers

Background and Objectives: Collision-sport athletes, such as rugby players, are at risk of sport-related concussion (SRC). Women are known to be at higher risk of SRC and may experience more severe and chronic symptomology than men. Knowledge of the factors that affect a player’s disclosure of their concussive symptoms could help to inform strategies to improve compliance with reporting and management of head injuries. The aim of this study was to investigate the factors that may impact women rugby players’ disclosure of a concussion. Methods: Twenty-eight adult (≥18 years of age) elite and semi-elite women rugby players from the UK …

Programmatic Accreditation: Implementation Strategies For College Kinesiology Program Directors, Kworweinski Lafontant

Topics in Exercise Science and Kinesiology

Programmatic accreditation within Kinesiology sub-disciplines, such as physical therapy and sports medicine, have typically been required at the graduate level. Within the coming decade, major certifications for exercise physiology (ACSM-EP) and strength & conditioning (CSCS) will institute programmatic accreditation requirements at the undergraduate level. This article takes a narrative review approach at examining ways that programmatic accreditation at the undergraduate level may impact incoming undergraduate students, such as necessitating earlier specialization and limiting the ability for late-stage career changes. To mitigate these impacts, college kinesiology program directors may benefit from considering the perspectives of students as they work to meet …

Game On! A Comparative Analysis Of External Load In Division Iii Soccer Players Across Gender And Position, Bianca J. De Lucia, Daniel M. Smith, Ashima Fillbach, Mary K. Feit

Topics in Exercise Science and Kinesiology

Global positioning systems have been used increasingly in sports science due to their ability to quantify external loads of athletes during competitions and practices. Limited research has examined gender differences in external load throughout a collegiate soccer season. PURPOSE: The aim of this study was to compare game workloads across collegiate men (MSOC) and women (WSOC) soccer players. Division III MSOC and WSOC players wore GPS devices during games throughout a 15-week season. METHODS: Metrics analyzed from GPS data were: total distance (TD), sprint distance (SD), number of deceleration efforts (decel) (>-3 m/s²), number of acceleration efforts (accel) ( …

The Relationship Between International Tennis Association Rankings And Total Athleticism Score In Collegiate Athletes, Ryne Yamashiro, Paulette Yamada, Trevor Short

Topics in Exercise Science and Kinesiology

Training tennis athletes for peak athletic performance may translate to enhanced on-court performance, resulting in higher rankings. However, the specific trainable tennis attributes that account for the variance in International Tennis Association (ITA) remain elusive. ITA Rankings are calculated based on how a collegiate tennis athlete performs whereby their rankings will change based on wins or losses and scores against their opponents ITA Ranking. A lower ITA Ranking (closer to 1) indicates a higher ranked tennis player. Holistic athletic profiling can be performed by assessing multiple key performance indicators, with the total athleticism score (TAS) being utilized to …

Grip Strength As An Indicator Of Neuromuscular Recovery, Emily Wilhelm

Senior Honors Projects, 2020-current

Purpose: To evaluate whether grip strength accurately tracks recovery from lower-body exercise comparable to other physical tests and a blood biomarker. Methods: Six subjects (three males and three females) completed testing for estimated 1-RM, jump squat velocity, grip strength, creatine kinase and leg extension peak torque one day prior to a fatiguing session of 10 sets of squats for 10 repetitions at 60% of estimated 1-RM. Each of these tests, as well as ratings of muscular soreness were performed again 24, 48 and 72 hours after the session of squats. Results: For peak torque, the 24 hours (129.5± 35.0 …

Advocating For Occupational Therapy Intervention With In-House Athletics, Jatia Littles, Cynthia Haynes

Fall 2024 OTD Capstone Symposium

Occupational therapists (OT) have the opportunity to work with athletes by outsourcing through orthopedic centers with professional leagues such as the National Football League (NFL) (Jobs in Sports, 2022) but rarely do you see OTs within the sports complex working in-house. Although many studies go into great detail on the benefits of occupational therapy during the rehabilitation process, there are only a limited number of studies that explore occupational therapy intervention in athletics (Andreas et al., 2021). This project designed and implemented an occupational therapy-focused advocacy project that involves informing interprofessional sports faculty on the benefits of OTs being a …

A011: Effects Of Aerobic Exercise On Microbiota: Gut-Brain Axis And Hippocampal Neurotransmitters In Aging Mice, Yuqian Liu, Wenqian Yang, Haitao Wang

International Journal of Physical Activity and Health

Background/Objective: Gut flora plays an important role in host stress response, anxiety, depression and cognitive function through the gut-brain axis. Microbial diversity decreases with age, which in turn affects the function of the nervous system. The role of exercise in the prevention and treatment of age-related diseases and neurodegenerative diseases has received increasing attention. The purpose of this study was to elucidate the regulatory role of intestinal flora, gut-brain axis and nervous system function in the prevention of nervous system function decline in the elderly.

Methods: The sample consisted of 16, 52-week-old SPF C57BL/6 male mice that were randomly divided …

A067: Latent Profile Analysis Of The Development Characteristics Of Fundamental Motor Skills In Children, Qinping Xu, Xiaozan Wang

International Journal of Physical Activity and Health

Focusing on the sensitive period of motor development, the current study used TGMD-3 to assess the development level of fundamental motor skills in 4833 children aged 3-6 years in Shanghai. The potential categories of children's fundamental motor skill development characteristics and their interrelationship with demographic variables were analyzed using potential profile analysis and Chi-squared test, aiming to provide references for the construction of motor development interventions for children with different motor development levels. The results revealed that: 1) The developmental level of fundamental motor skills in 3-6-year-old children in Shanghai can be categorized into five latent categories, from low to …

A031: Design And Practice Of Ai-Powered Precision Teaching Model For Public Physical Education Courses In Universities, Dongxiao Liu, Xuankun Sun, Aowei Zhang

International Journal of Physical Activity and Health

Background/Purpose: Five major teaching pain points often occur in the teaching of public physical education courses in universities: (1) First pain point is easy to have deviations in movement cognition and self-practice. (2) It is difficult to accurately grasp the intensity and density of exercise. (3) Lack of process and phased teaching evaluations can inhibit the cultivation of autonomous exercise drive. (4) Unhealthy aesthetics have a negative impact, leading to a deviation in aesthetic perception among students. (5) Students lack autonomous learning ability and have difficulty cultivating post-class exercise habits. How to resolve these "pain points" are now the key …

A040: The Effect Of Blended Online And Offline Physical Education On The Health-Related Indexes Of Undergraduates, Shijun Gong, Aowei Zhang, Dongxiao Liu, Yanxin Liu

International Journal of Physical Activity and Health

Background/Purpose: With the explosive development of artificial intelligence, many scholars have carried out research around the combination of online and offline physical education courses. Current research has focused on developing the application of information technology in the classroom teaching of physical education. The main purpose addressed in this study was to investigate the possible effects of implementing such a blended online and offline physical education at home on the health-related indices of students.

Method: Totally 14,708 college students participated, including 6,125 males and 8,583 females. In the analysis approach, research was adopted using SPSS 26.0, specifically the paired-samples T test …

A046: Recreational Skiing Injury Rate: A Case Study Of A Ski Resort In Central New York, Hongwei Guan, David Guan, Xiaoran Li

International Journal of Physical Activity and Health

Background/Purpose: More people in China are participating in snow sports, especially after the Beijing 2022 Winter Olympics. Despite health benefits, skiing and snowboarding are associated with injury risk. Ski safety and injury prevention are essential for sustainable operation of ski resorts with the rapid development of snow sports in China. The purpose of this study was to examine the injury rate at a popular medium-sized ski resort in Central New York and compare it with that of similar ski resorts in Northeastern China.

Method: Direct ski patrol observation and injury incident reports of three seasons from 2020-21 to 2022-23 were …

A049: Associations Between 24-Hour Accelerometer-Derived Novel Metrics With Health-Related Physical Fitness In Chinese Adolescents, Yanping Qiu, Lijuan Wang, Huan Chen, Xiaoqing Li

International Journal of Physical Activity and Health

Background/Purpose: Time-use estimates are commonly utilized for describing 24-hour movement behaviors. Nonetheless, the average acceleration (AvAcc), intensity gradient (IG) and the most active X minutes (MX metrics) have been proposed as 24-hour movement behaviors novel metrics describing the volume of activity, the intensity distribution and the most active time periods of the 24-h cycle. This cross-sectional study aimed to examine associations between 24-h accelerometer-derived metrics and health-related physical fitness in Chinese adolescents.

Methods: This study recruited 240 students aged 12-18 (143 males, 97 females) from a middle school in Haizhu District, Guangzhou City. The data collection period was from March …

A052: Construction Of Ski Instructors' Competency Evaluation Index System Based On O*Net Working Analysis, Juan Ran, Hongyan Wang

International Journal of Physical Activity and Health

Background/Purpose: Skiing has emerged as a preeminent activity in ice and snow tourism, with ski resorts significantly bolstering the winter tourism economy. However, the burgeoning demand for instructors, coupled with the increasing number of enthusiasts, poses critical challenges for the sport's development. To address these issues, we have undertaken a comprehensive competency assessment to inform the training and retraining of instructors. This evaluation is also pertinent for selecting unlicensed instructors.

Method: The study involved 12 experts and 250 ski instructors from Jilin Province. Research was conducted using keywords such as 'competency model' and 'instructor quality'. The O*NET questionnaire and a …

A055: The Relationship Between Grip Strength And Quality Of Life In The Elderly Based, Fanhao Meng

International Journal of Physical Activity and Health

Background: The World Health Organization (WHO) has launched the "Decade of Healthy Ageing" from 2021 to 2030 to address the challenges of a rapidly ageing global population. The extension of human lifespan is a manifestation of social progress, but aging and increased longevity may be accompanied by problems such as reduced physical and mental abilities and increased risk of diseases, which affects quality of life (QOL). Grip as an indicator of strength and is associated with physical activity in older adults. It is readily applicable in clinical and community settings, and there is an association between grip strength and health-related …

A058: The Impact Of Multi-Directional Training On Change-Of-Direction Speed And Short-Distance Sprint Ability In Tennis Student-Athletes, Ke Zhang, Yue Zhao, Zhihui Zhou, Haijun Wu

International Journal of Physical Activity and Health

Objective: Tennis, characterized by rapid multi-directional sprints, involves lateral movements along the baseline constituting approximately 70% of gameplay, with each single movement covering around 3 meters. On average, there are 2-4 direction changes per point, and each stroke requires 0.4 seconds. Recognizing the imperative need for tennis players to rapidly change direction and execute short-distance sprints, influenced by factors like the ball's trajectory, opponent's movements or disguise movements, this study aimed to investigate the impact of three weeks of multi-directional sprint training on the change-of-direction speed and short-distance sprint ability of tennis student-athletes.

Methods: Nineteen male tennis athletes with an …

A062: Experimental Research Of Impact Of Large-Unit Soccer Teaching On Elementary School Students' Physical Health, Yin Zhao, Ziming Shao

International Journal of Physical Activity and Health

Objective: The "Compulsory Education Curriculum Standards: Physical Education and Health(2022 Edition) in China" explicitly proposes that from grades 3-6, at least one sport from six major specialized sports skills should be chosen for at least 18 class periods of relatively systematic and complete teaching, enabling students to not only master the sports skills of the chosen project but also deepen their comprehensive experience and understanding of the sport. Long-standing issues in elementary school football teaching include superficial teaching depth, isolated and incoherent content, and disconnection between educational stages. There is an urgent need for physical education teachers to organize systematic …

A059: Multidimensional Interpretation And Development Strategies For The International Communication Of Dragon And Lion Dancing, Weiyan Wang, Li Zhou, Cuili Zhai

International Journal of Physical Activity and Health

The dragon and lion dance, as the bright treasure of Chinese traditional sports culture, demonstrates Chinese cultural confidence and distinct national characteristics, serving as an important showcase for China's image. However, the international communication of dragon and lion dance faces numerous challenges, including understanding barriers caused by cultural differences, limitations in promotion scope, uneven overall development levels, and balancing cultural impact with cultural identity. These issues are pertinent to the future development of dragon and lion dance.

After conducting a literature analysis, the historical origins, cultural connotations, and communication processes of dragon and lion dances were systematically examined, laying a …

A063: Electroencephalogram (Eeg) Signal Analysis For College Students' Attention And Meditation Level In Yoga Courses, Zhonghui He, Fangxin Li, Xi Qi, Honglin Chen

International Journal of Physical Activity and Health

PURPOSE: Yoga is associated with psychological and physiological benefits, including relaxation and increased attention. Electroencephalograms (EEG) signals reflect the electrical activity of the brain and transformed Alpha and Beta brainwaves into meditation and attention values. This study primarily aimed to measure college students’ attention and meditation level in yoga courses. The secondary aim was to explore yoga’s effect on students’ cognitive ability.

METHODS: The study selected two yoga classes in the first semester of 2023 in an academic university in China. Using convenience sampling methods, 16 college students who attended yoga courses voluntarily participated in this study. All learning phases, …