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2026

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Full-Text Articles in Exercise Science

A036: “The Champion Gene” Actn3 And Cold Adaptation: An Environmental Regression Model And Systematic Review, Mingrui Wang, Mi Zhou, Jianchun Weng, Longtianjiao Liu, Xiaoyu Jiang, Lijun Shi Jan 2026

A036: “The Champion Gene” Actn3 And Cold Adaptation: An Environmental Regression Model And Systematic Review, Mingrui Wang, Mi Zhou, Jianchun Weng, Longtianjiao Liu, Xiaoyu Jiang, Lijun Shi

International Journal of Physical Activity and Health

The ACTN3 R577X (rs1815739) genetic polymorphism is a significant research topic in sports genetics, with the XX genotype exhibiting a marked geographical gradient in different populations worldwide. The frequency of the XX genotype is notably higher in cold, high-latitude regions compared to tropical areas (e.g., Sweden 25%, Russia 14.2%, while Kenya 1%). These phenomena suggest that the ACTN3 R577X polymorphism may be closely related to cold adaptation. This study aims to analyze the evolutionary mechanisms, molecular regulation, and potential application of the ACTN3 R577X polymorphism in winter sports talent selection. Using the genomic database Ensemble and the WWF terrestrial ecoregion …


A053: Research On Adolescent Obesity Experience, Zhenfei Zhu Jan 2026

A053: Research On Adolescent Obesity Experience, Zhenfei Zhu

International Journal of Physical Activity and Health

The alarming prevalence of overweight and obesity among adolescents has emerged as a significant public health challenge. Since the World Health Organization (WHO) identified obesity as a global health priority in 2018, it has evolved from an individual concern to a medical condition requiring intervention, with profound implications for both individuals and society. Adolescent obesity is intricately linked to various aspects of health, including social, emotional, behavioral, and cultural dimensions. There is a notable lack of qualitative research on obesity experiences in China. Conducting qualitative studies to explore the life experiences, motivations, and physical activity patterns of students can deepen …


The Nutritional Environment And Food Access Of Female Athletes At Hbcus: A Qualitative Analysis, Nancy A. Uriegas, Zachary K. Winkelmann Ph.D., Lat, Atc, Chse, Dawn M. Emerson, Toni Torres-Mcgehee Ph.D., Lat, Atc, Facsm Jan 2026

The Nutritional Environment And Food Access Of Female Athletes At Hbcus: A Qualitative Analysis, Nancy A. Uriegas, Zachary K. Winkelmann Ph.D., Lat, Atc, Chse, Dawn M. Emerson, Toni Torres-Mcgehee Ph.D., Lat, Atc, Facsm

Faculty Publications

Purpose:

Female student-athletes attending Historically Black Colleges and Universities (HBCUs) may encounter distinct challenges related to food access, particularly when their campuses are situated in areas with limited food availability. This study assessed food security (FS) and explored the lived experiences of HBCU female student-athletes regarding their food environments and access to nutrition.

Methods:

This qualitative study used a semi-structured interview protocol derived from quantitative data. Participants were 10 HBCU female athletes (age = 19 ± 1 years) living in on-campus dormitories; recruited after completing a quantitative study examining energy needs. The three-part semi-structured interview protocol included questions about personal …


Social Influences On Exercise And Physical Activity, Domanick Speelman Jan 2026

Social Influences On Exercise And Physical Activity, Domanick Speelman

Williams Honors College, Honors Research Projects

Background: Regular exercise plays a big role in maintaining an individual’s physical and mental health, preventing diseases, and improving overall well-being. A plethora of things can influence an individual’s exercise habits, for better or worse, including social, environmental, and familial contexts. This study described exercise and social influences among undergraduate college students. More specifically, this study described exercising habits (frequency, duration, type, etc.) as well as the role of social media, environmental conditions, and family support during a typical week of the academic semester.

Design: Cross-sectional, descriptive survey

Methods: A sample of 33 undergraduate students from a public university in …


The Impact Of Heavy Resistance Training On Type Ii Muscle Fibers Throughout Female Reproductive Stages, Lily G. Colberg Jan 2026

The Impact Of Heavy Resistance Training On Type Ii Muscle Fibers Throughout Female Reproductive Stages, Lily G. Colberg

Scripps Senior Theses

Type II muscle fibers, also known as fast-twitch muscle fibers, are reliant on aerobic glycolysis and are crucial for high-force contractions, mobility, and rapid movements, such as fast reflexes. Heavy resistance training has been found to increase type II muscle fiber concentration in young, middle-aged, and elderly individuals. However, there have been few studies conducted on female-only sample populations. In women, the impact of heavy resistance training on type II muscle fibers is affected by the progressive decline of estrogen that defines the transition throughout the four female reproductive stages: premenopause, perimenopause, late-transition menopause, and postmenopause. Menopausal estrogen depletion causes …


Examining Weight Related Attitudes And Health Behaviors Among College Students, Alexis C. Denski Jan 2026

Examining Weight Related Attitudes And Health Behaviors Among College Students, Alexis C. Denski

Senior Honors Theses and Projects

BACKGROUND: College is a pivotal period for the development of lifelong health behaviors. Factors such as greater personal freedom, poor diet, social norms, and insufficient physical activity (PA) contribute to common weight gain and increase of body image challenges. Although many college students report trying to lose weight, there is limited research examining if their PA and dietary behaviors align with evidence-based health recommendations. PURPOSE: Examine the proportion of college students trying to change their weight and their engagement in weight-related behaviors such as PA, strength training (ST), and dietary factors. METHODS: In Fall 2019, a random sample of 5,000 …


Enhancing The Playing Field:​ Effects Of Playground Renovation On Recess Physical Activity​, Hudson M. Parsley Jan 2026

Enhancing The Playing Field:​ Effects Of Playground Renovation On Recess Physical Activity​, Hudson M. Parsley

2026 Honors Symposium

Background: Children in recent years have become increasingly sedentary, which poses major risks to their health and overall well-being. Recess is a point of interest in the field of exercise science, as research has found increased recess time is associated with increased levels of PA, but little is known on how the quality of recess, such as playground structures, affects physical activity. Purpose: The aim of my study is to investigate if there is a significant change in physical activity habits during recess among elementary school students due to a change in playground play structures and surfaces, in the form …


Comparing Strength Testing Measures And The Association Of Strength And Body Composition In Young Children, Abigayle R. Spong Jan 2026

Comparing Strength Testing Measures And The Association Of Strength And Body Composition In Young Children, Abigayle R. Spong

Theses and Dissertations--Kinesiology and Health Promotion

Muscle strength is an important component of physical fitness; however, measuring it with isokinetic dynamometry (IKD) is expensive and requires dedicated space. Handheld dynamometry (HHD) provides a practical alternative for field and clinical settings. Thus, the purpose of this study was to compare peak knee flexion and extension torque measured by IKD and HHD in 37 children (ages 5-11 years) and examine relationships with body composition. Participants completed a RAMPing protocol at 90o knee flexion consisting of two warm-up contractions at 50% and 75% effort followed by three maximal voluntary isometric contractions. Body composition was assessed via DXA scans. …


Independent And Interactive Effects Of Stack Height And Heel Width On Spatiotemporal Parameters, Knee Joint Kinetics, And Ground Reaction Forces During Running, Hao Cai Jan 2026

Independent And Interactive Effects Of Stack Height And Heel Width On Spatiotemporal Parameters, Knee Joint Kinetics, And Ground Reaction Forces During Running, Hao Cai

College of Graduate Studies: Theses & Dissertations

This study investigated the independent and interactive effects of stack height (SH) and heel width (HW) on lower-extremity biomechanics during running. Specifically, the study examined how variations in midsole geometry influenced spatiotemporal parameters, knee joint kinetics, and ground reaction forces (GRF). Twelve recreational runners (8 males, 4 females) completed treadmill running trials at 16 km/h under nine shoe conditions that systematically varied in SH (25, 45, and 65 mm) and HW (81, 93, and 105 mm). Lower-extremity kinematics were collected using a Theia3D markerless motion capture system, and GRF data were recorded using an instrumented treadmill. A two-way repeated-measures ANOVA …


Comparison Of 2000-Meter Row Prediction To Measured Vo2peak During Gxt, Andrew S. Ashley Jan 2026

Comparison Of 2000-Meter Row Prediction To Measured Vo2peak During Gxt, Andrew S. Ashley

College of Graduate Studies: Theses & Dissertations

BACKGROUND: Aerobic capacity is essential for the performance of military personnel and first responders. Traditionally, graded exercise tests (GXTs) with metabolic gas analysis have been the criterion-referenced method for assessing aerobic fitness. However, treadmill running and cycle ergometers may not fully reflect the whole-body demands required in tactical environments. Rowing-based assessments and the currently commercially available VO2max prediction formula are widely used across tactical organizations as practical field measures, and most tactical operators are considered inexperienced rowers, which has been minimally examined. PURPOSE: The purpose of this study is to compare measured VO2peak from a rowing GXT with estimated VO2max …


Acute Lower Leg Transcutaneous Electrical Nerve Stimulation Increases Leg Blood Flow And Exercise Capacity In Patients With Peripheral Arterial Disease, Thomas K. Pellinger, Catherine B. Neighbors, Joshua C. Hefta, Patrick H. Luo, Carl B. Suarez, Erotokritos T. Varlas, Grant H. Simmons, Brett J. Wong Jan 2026

Acute Lower Leg Transcutaneous Electrical Nerve Stimulation Increases Leg Blood Flow And Exercise Capacity In Patients With Peripheral Arterial Disease, Thomas K. Pellinger, Catherine B. Neighbors, Joshua C. Hefta, Patrick H. Luo, Carl B. Suarez, Erotokritos T. Varlas, Grant H. Simmons, Brett J. Wong

EVMS School of Health Professions Faculty Publications

We tested the hypothesis that two different durations of lower leg transcutaneous electrical nerve stimulation (TENS) increase post-TENS popliteal artery blood flow (PABF), popliteal vascular conductance (PVC), and 6-min walk distance (6MWD) in patients with peripheral artery disease (PAD). Seven subjects (5 male, 2 female) with PAD (67.9 ± 7.4 years; claudication: ankle-brachial index (ABI) < 0.90) participated in three randomized treatment sessions: control or bilateral TENS (3.0 Hz burst mode, 250 µs) for either 15 or 45 min. PABF (Doppler ultrasound) was measured before and after treatment. 6MWD and time/distance to claudication onset were measured 25 min post-treatment during each session. PABF, PVC and 6MWD increased after both 15 and 45 min of TENS (P < 0.05, post-TENS vs. pre-TENS baseline/control). Our preliminary results suggest that as little as 15 min of lower leg TENS increases leg blood flow and exercise capacity in individuals with PAD.


Associations Between Accelerometer-Measured Physical Activity And Sleep Duration And Health Indicators In Children And Adolescents With Attention-Deficit Hyperactivity Disorder: A Systematic Review And Meta-Analysis, Xiao Liang, Hui Qiu, Justin A. Haegele, Xiao Li, Minghui Li, Jiayue Li, Shirley Xin Li Jan 2026

Associations Between Accelerometer-Measured Physical Activity And Sleep Duration And Health Indicators In Children And Adolescents With Attention-Deficit Hyperactivity Disorder: A Systematic Review And Meta-Analysis, Xiao Liang, Hui Qiu, Justin A. Haegele, Xiao Li, Minghui Li, Jiayue Li, Shirley Xin Li

Human Movement Studies & Special Education Faculty Publications

Objective

This systematic review and meta-analysis synthesized available studies to explore relationships between accelerometer-measured physical activity (PA) levels or sleep duration and health-related outcomes in children and adolescents with attention-deficit hyperactivity disorder (ADHD).

Methods

Following the Preferred Reporting Items for Systematic Review and Meta-analyses guidelines, the six databases APA PsychInfo, CINAHL Ultimate, Embase, MEDLINE, SPORTDiscus with Full Text and Web of Science were searched from inception through July 2024. The correlation coefficient (r) was employed to determine the effect size in the meta-analysis. A random-effects model was utilised to estimate the potentially heterogeneously distributed effect sizes with a 95 % …


Felt Ambivalence Weakens The Attitude-Intention Pathway For Regular Leisure-Time Physical Activity In Chinese Adolescents: A Three-Wavee Prospective Study, Yaogang Han, Yubing Wang, Pan Li, Guohua Zheng Jan 2026

Felt Ambivalence Weakens The Attitude-Intention Pathway For Regular Leisure-Time Physical Activity In Chinese Adolescents: A Three-Wavee Prospective Study, Yaogang Han, Yubing Wang, Pan Li, Guohua Zheng

Human Movement Studies & Special Education Faculty Publications

Background: Favorable attitudes toward regular leisure-time physical activity may not always translate into intention if adolescents feel ambivalent about the behavior. This study tested whether felt ambivalence weakens the prospective attitude–intention association and the indirect effect of attitude on later behavior through intention. Methods: Chinese adolescents (N = 1714; Grades 7–12; mean age = 15.0 years) completed a three-wave survey at approximately two-week intervals. Wave 1 assessed attitudes toward regular leisure-time moderate-to-vigorous physical activity, felt ambivalence, and physical activity habit; Wave 2 assessed intention; and Wave 3 assessed leisure-time physical activity. Moderated mediation was tested in a structural equation model …


From Intention To Enactment: Action Planning And Habit Automaticity Distinguish Successful From Unsuccessful Intenders To Engage In Regular Leisure-Time Moderate-To-Vigorous Physical Activity, Yaogang Han, Yubing Wang, Pan Li, Binn Zhang Jan 2026

From Intention To Enactment: Action Planning And Habit Automaticity Distinguish Successful From Unsuccessful Intenders To Engage In Regular Leisure-Time Moderate-To-Vigorous Physical Activity, Yaogang Han, Yubing Wang, Pan Li, Binn Zhang

Human Movement Studies & Special Education Faculty Publications

University students often intend to exercise regularly but fail to translate intention into action. The present study tested which post-intentional processes distinguish successful from unsuccessful intenders in self-reported regular leisure-time moderate-to-vigorous physical activity (MVPA) enactment. Chinese undergraduates from 10 universities completed a three-wave survey administered at roughly two-week intervals. Habit automaticity was assessed at Wave 1, intention together with action planning and coping planning at Wave 2, and self-reported regular-exercise status at Wave 3. Because the dependent variable was assessed using a single stage-based self-report item, the findings should be interpreted as explaining self-reported regular-exercise status rather than objectively measured …


The Relationship Between Physical Activity, Sleep, And Hallucinations In Adults With Charles Bonnet Syndrome, Jarrod Hollis, Rohit Narayan, Eldre W. Beukes, Rosie Lindsay, Aliyah Bharwani, Umair Mughal, Ikra Yaqoob, Justin A. Haegele, Scott Muriden, Peter M. Allen Jan 2026

The Relationship Between Physical Activity, Sleep, And Hallucinations In Adults With Charles Bonnet Syndrome, Jarrod Hollis, Rohit Narayan, Eldre W. Beukes, Rosie Lindsay, Aliyah Bharwani, Umair Mughal, Ikra Yaqoob, Justin A. Haegele, Scott Muriden, Peter M. Allen

Human Movement Studies & Special Education Faculty Publications

Physical activity levels, hallucination experiences, sleep quality, and perceived stress were assessed using a survey administered to 57 adults with a confirmed diagnosis of Charles Bonnet Syndrome (CBS). Physical activity demonstrated a significant negative correlation with hallucination severity (r = –0.335, p = 0.011, two-tailed). A significant negative correlation was also observed between physical activity and perceived stress (r = –0.497, p < 0.001, two-tailed). In contrast, no significant association was identified between hallucination frequency and sleep disruption or insomnia. These findings suggest that engaging in appropriate levels of physical activity may help reduce the severity of hallucinations and mitigate stress among individuals with CBS. The observation that higher levels of physical activity are associated with reduced hallucination burden may help the development of evidence-based management strategies for CBS. Additionally, the finding that physical activity was significantly related to hallucination severity, whereas sleep disruption was not, merits deeper exploration in future research.


Decreased Exercise-Induced Pulmonary Capillary Recruitment In Pulmonary Arterial Hypertension, David Langleben, Stylianos E. Orfanos, Benjamin D. Fox, Michele Giovinazzo, Magali Kaddis, John D. Catravas Jan 2026

Decreased Exercise-Induced Pulmonary Capillary Recruitment In Pulmonary Arterial Hypertension, David Langleben, Stylianos E. Orfanos, Benjamin D. Fox, Michele Giovinazzo, Magali Kaddis, John D. Catravas

Bioelectrics Publications

The human lung normally accommodates exercise-induced cardiac output increases mainly via recruitment of non-concomitantly perfused pulmonary capillaries. Recruitment is detectable by measuring the first-pass transpulmonary metabolism of ³H-benzoyl-Phe-Ala-Pro, providing an estimate of functional capillary surface area (FCSA). Pulmonary arterial hypertension (PAH) results from luminal narrowing of small precapillary arterioles, reducing downstream perfused FCSA. We hypothesized that exercising PAH patients would not be able to recruit FCSA normally. We studied two patients with severe PAH. Despite exercising to maximal dyspnea, neither could recruit FCSA. These limited data are the first direct measurements of FCSA in exercising PAH patients.


Dietary Intake And Predictors Of Healthy Eating In Midwestern American College Students: An Observational Study †, Anna Peluso Simonson, Jacquelyn N. Zera, Gregory S. Farnell Jan 2026

Dietary Intake And Predictors Of Healthy Eating In Midwestern American College Students: An Observational Study †, Anna Peluso Simonson, Jacquelyn N. Zera, Gregory S. Farnell

2026 Faculty Bibliography

College students often maintain poor dietary habits, notably low fruit and vegetable intake. Commonbarriers include limited time, cost, and lack of nutritional knowledge. This study examined dietary behaviors, barriers, and factors influencing Healthy Eating Scores (HES) amongcollege students. Participants (N = 224; age = 20.3 ± 2.5 years, BMI = 23.9 ± 4.1 kg/m2, 78.9% female, and 91.3% white) completed an online survey. Results indicate meat overconsumption with underconsumption of water, fruits, and vegetables. Limited time and healthy options were the primary perceived barriers. Tests of between-subject effects identified gender (F = 4.38, p = 0.04) and living situation (F …


Risk Of Gestational Diabetes By Aerobic And Resistance Exercise During The First And Second Trimesters, Takaki Tanamoto, George Saade, Leryn J. Reynolds, Tetsuya Kawakita Jan 2026

Risk Of Gestational Diabetes By Aerobic And Resistance Exercise During The First And Second Trimesters, Takaki Tanamoto, George Saade, Leryn J. Reynolds, Tetsuya Kawakita

Department of Obstetrics & Gynecology Faculty Publications

Objective

While some studies have shown that exercise reduces the incidence of gestational diabetes mellitus (GDM), there is limited evidence on whether aerobic or resistance exercise is more beneficial. This study aimed to examine the rate of GDM according to the type of exercise during early pregnancy.

Study design

We analyzed data from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be (nuMoM2b), a prospective cohort of individuals enrolled during the first and second trimesters. We excluded participants with pregestational diabetes or delivery < 20 weeks. The primary exposure was either aerobic or resistance exercises in the first or second trimester. For each trimester, the metabolic equivalent of task hours per week (MET-h/week) was calculated for each exercise. Participants were grouped as follows: "Aerobic exercise" (≥7.5 MET-h/week from aerobic exercises), "Resistance exercise" (≥2 times/week from resistance exercises), "Both types of exercise" (≥7.5 MET-h/week from aerobic exercise and ≥2 times/week from resistance exercises), and "Insufficient exercise" (≤7.5 MET-h/week from aerobic exercise and ≤2 times/week from resistance exercises). Our primary outcome was GDM. Adjusted relative risks (aRRs) with 95% confidence intervals (95% CIs) were calculated using modified Poisson regression, adjusting for potential confounders.

Results

In both the first and second trimesters, analyses included 9049 individuals. In the first trimester, individuals who performed …


Radial And Carotid Arterial Pulse Signals For Assessing Cardiovascular Function At Rest And During Post-Exercise Recovery In A Heart Transplant Patient: A Case Study, Md Mahfuzur Rahman, Mamun Hasan, Jennifer F. May, John M. Herre, Leryn Reynolds, Zhili Hao Jan 2026

Radial And Carotid Arterial Pulse Signals For Assessing Cardiovascular Function At Rest And During Post-Exercise Recovery In A Heart Transplant Patient: A Case Study, Md Mahfuzur Rahman, Mamun Hasan, Jennifer F. May, John M. Herre, Leryn Reynolds, Zhili Hao

Mechanical & Aerospace Engineering Faculty Publications

Aim: This study investigates the feasibility of using radial and carotid arterial pulse signals to assess cardiovascular (CV) function at rest and during post-exercise recovery in a heart transplant (HTx) patient. Method: Two micro-fabricated tactile sensors were used to simultaneously acquire arterial pulse signals at the radial artery (RA) and carotid artery (CA). Measurements were taken at rest and at multiple time points post-exercise on three subjects: an HTx patient, a percutaneous coronary intervention (PCI; coronary stent) patient and a healthy control. An SDOF-TF-based time-frequency analysis algorithm was applied to extract a comprehensive set of CV parameters, including heart rate …


Independent Animal Chiropractic Practice: An Evidence-Based Argument For Autonomy Beyond Veterinary Supervision, Montana Adams Jan 2026

Independent Animal Chiropractic Practice: An Evidence-Based Argument For Autonomy Beyond Veterinary Supervision, Montana Adams

Undergraduate Honors Theses

Animal chiropractic is a growing form of conservative care used to improve mobility, reduce pain, and support neuromusculoskeletal function in animals. Despite evidence suggesting it is both effective and low risk, access remains limited due to inconsistent state regulations. Many jurisdictions require chiropractors to obtain veterinary supervision, referral, or licensure, even when they have completed specialized training and certification in animal chiropractic. This paper evaluates the effectiveness and safety of animal chiropractic while analyzing the impact of current regulatory policies. Research indicates that chiropractic care can improve mobility and reduce spinal conditions in animals when performed by trained professionals. However, …


Wearable Sensor-Based Phase Segmentation Analysis Of Front Crawl Swimming: A Scoping Review, Jonathan Simoes, Samuel Aylward, Daniel Hamze, Daniel James Goble, Daniel M. Russell, Joshua Haworth Jan 2026

Wearable Sensor-Based Phase Segmentation Analysis Of Front Crawl Swimming: A Scoping Review, Jonathan Simoes, Samuel Aylward, Daniel Hamze, Daniel James Goble, Daniel M. Russell, Joshua Haworth

Exercise Science Faculty Publications

Front crawl swimming stroke phase segmentation has historically relied on video analysis, but the development of wearable sensor technology has created new opportunities for automated phase segmentation. This scoping review mapped the available evidence on wearable sensor-based stroke phase segmentation methods in front crawl swimming, following PRISMA-ScR guidelines. A systematic search of SPORTDiscus, Web of Science, and IEEE Xplore conducted from January to June 2026, identified 15 eligible peer-reviewed studies published between 2000 and 2024. The review revealed an emerging field of research that has converged methodologically around inertial measurement units (IMUs) and the Chollet phase segmentation framework while remaining …


Examining Any Differences Between Genders’ Activity Levels During Recess, Kara M. Wells Jan 2026

Examining Any Differences Between Genders’ Activity Levels During Recess, Kara M. Wells

2026 Honors Symposium

Physical activity in children is significant for all aspects of their development, including cognitive, physical, emotional, and social aspects. Recess is important for children to be given a designated time to exercise and get physical activity. For some children, recess is the only time they get to exercise in a day. This study aims to examine differences in activity levels between genders at Leverett Elementary School. It is important to know if there is a disparity between boys and girls at recess, so that educators, parents, and administrators can work to bridge any gaps and ensure that all kids are …


Pain And Pace: Investigating Gait Velocity In Individuals With Cancer, Melaina E. Taylor Jan 2026

Pain And Pace: Investigating Gait Velocity In Individuals With Cancer, Melaina E. Taylor

2026 Honors Symposium

Background: Cancer remains the second leading cause of death worldwide, with incidence rates continuing to rise. Pain, a hallmark symptom of many cancers, is caused by both the progression of disease and treatments. Gait, the way in which someone walks, is now dubbed the “6th vital sign” for its strong relationship with functional status, longevity, and survival. Specifically, gait velocity is a key metric for gait, with previous studies in cancer free adults showing increased pain associated with a decreased gait velocity. The relationship between gait velocity and pain has not yet been explored in individuals with cancer. Purpose: The …


Biomechanical Effects Of Exercise-Based Interventions In Chronic Nonspecific Low Back Pain: A Systematic Review And Meta-Analysis, Lara De Vecchi Machado Jan 2026

Biomechanical Effects Of Exercise-Based Interventions In Chronic Nonspecific Low Back Pain: A Systematic Review And Meta-Analysis, Lara De Vecchi Machado

Theses and Dissertations--Kinesiology and Health Promotion

Chronic nonspecific low back pain (CNLBP) is the leading cause of years lived with disability worldwide and represents a complex, multifactorial, and heterogeneous condition. It is characterized by substantial interindividual variability in muscle activation patterns, lumbo-pelvic coordination, and movement strategies. Although exercise is widely recommended as a first-line intervention and its clinical benefits are well established, the biomechanical mechanisms underlying functional improvement remain fragmented in the literature and are rarely synthesized quantitatively.

This dissertation conducted a systematic review with meta-analysis to investigate the biomechanical effects of exercise-based interventions in individuals with CNLBP. A total of 39 studies were included and …


A Qualitative Analysis Of Fitness Wearable Use And Embodiment, Lucas Brandt Jan 2026

A Qualitative Analysis Of Fitness Wearable Use And Embodiment, Lucas Brandt

Antioch University Dissertations & Theses

Wearable fitness technologies have become increasingly integrated into contemporary health and wellness culture, providing users with continuous access to physiological and behavioral data related to movement, sleep, stress, recovery, and overall health. Research has demonstrated that wearable devices can increase physical activity and support health behavior change (Ferguson et al., 2022; Koivisto & Hamari, 2019). Although less is known about how these technologies influence individuals’ lived experiences of their bodies. Understanding this relationship is particularly important given growing concerns regarding embodiment, self-surveillance, and the psychological effects of health-tracking technologies (Bergsland, 2017; Rapp, 2021). Drawing on theories of mind-body connection and …


Combining Haptic Feedback With Electromyography To Study Knee Injury In Stationary Cycling, Christopher Kirby Jan 2026

Combining Haptic Feedback With Electromyography To Study Knee Injury In Stationary Cycling, Christopher Kirby

Honors Theses

Patellofemoral Pain Syndrome (PFPS) is the most prevalent overuse injury in cycling, often linked to altered neuromuscular activation patterns of the quadriceps and hamstrings. While sensory feedback has successfully modified cyclists posture, there is a critical lack of evidence-based interventions targeting the underlying muscle activation imbalances associated with chronic knee pain. This study aimed to develop and validate a novel, real-time biofeedback system that utilizes electromyography (EMG) to trigger vibrotactile cues, aiming to shift muscle onset timing earlier in the pedal stroke to mitigate PFPS-related imbalances. A closed-loop system was engineered by integrating a Delsys EMG system with a SageMotion …


Ultrasound-Derived Liver Composition And Metabolic Flexibility Under Exercise Stress, Rhodes Van Houten Jan 2026

Ultrasound-Derived Liver Composition And Metabolic Flexibility Under Exercise Stress, Rhodes Van Houten

All Master's Theses

Metabolic Associated Fatty Liver Disease (MAFLD) is characterized by abnormal liver fat accumulation in conjunction with metabolic syndromes. MAFLD affects 33% of individuals worldwide, though little is known about how increased liver fat impacts physiological responses to exercise. This study aimed to analyze the relationship between liver composition and metabolic flexibility during a graded exercise test.  Body composition was analyzed via dual-energy X-ray absorptiometry. Liver ultrasound was evaluated for echogenicity, where elevated mean gray volume (MGV) indicates abnormal liver tissue. Rates of fat (FATox) and carbohydrate (CHOox) oxidation (g/min), respiratory exchange ratio (RER), and blood lactate concentrations ([LA-], …


Eeg And Imu Gait Signal Processing: A Comparative Assessment Of The "Reza" Exponential Filter And Classic Filters, Reza Pousti, Daniel M. Russell, Derek C. Monroe, Christopher K. Rhea Jan 2026

Eeg And Imu Gait Signal Processing: A Comparative Assessment Of The "Reza" Exponential Filter And Classic Filters, Reza Pousti, Daniel M. Russell, Derek C. Monroe, Christopher K. Rhea

Rehabilitation Sciences Faculty Publications

Noise degrades both EEG and gait signals, and classical IIR filters (Butterworth, Chebyshev, elliptic) involve trade-offs between passband flatness, ripple, and roll-off. This study compared a novel exponential "Reza" filter with these designs for neural and locomotor data. We analyzed an open-source mobile brain-body imaging dataset with EEG and gait data from 49 healthy adults (EEG: 256-channel, 512 Hz; IMUs: six APDM Opals, 128 Hz). EEG channels were grand-averaged and band-pass filtered at 0.5-50 Hz, while IMU axes were averaged and band-pass filtered at 0.5-5 Hz. The outcomes were signal-to-noise ratio SNR (dB) and band-integrated Welch PSD (EEG:0.5-50 Hz; IMU:0.5-5 …


The Sequence (S) Index As A Marker Of Diminished Step-To-Step Transition Efficiency In Older Adults, Elham Alijanpour, Ashwini Kulkarni, Peter G. Adamczyk, Daniel M. Russell Jan 2026

The Sequence (S) Index As A Marker Of Diminished Step-To-Step Transition Efficiency In Older Adults, Elham Alijanpour, Ashwini Kulkarni, Peter G. Adamczyk, Daniel M. Russell

Rehabilitation Sciences Faculty Publications

Introduction: Age-related declines in walking efficiency are often attributed to musculoskeletal and neuromuscular changes, yet the mechanisms underlying these inefficiencies remain poorly understood. One key contributor is the step-to-step transition (STST), during which the center of mass (CoM) is redirected between limbs. The Sequence (S) index quantifies the temporal overlap between push-off and collision forces during STST, with higher values indicating greater mechanical energy loss. This study investigated whether aging affects STST efficiency, as quantified by the S index, and examined the timing and impulse characteristics underlying observed differences.

Methods: Thirteen young and eleven older healthy adults walked at five …


Radial And Carotid Arterial Pulse Signals For Assessing Cardiovascular Function At Rest And During Post-Exercise Recovery In A Heart Transplant Patient: A Case Study, Md Mahfuzur Rahman, Mamun Hasan, Jennifer F. May, John M. Herre, Leryn Reynolds, Zhili Hao Jan 2026

Radial And Carotid Arterial Pulse Signals For Assessing Cardiovascular Function At Rest And During Post-Exercise Recovery In A Heart Transplant Patient: A Case Study, Md Mahfuzur Rahman, Mamun Hasan, Jennifer F. May, John M. Herre, Leryn Reynolds, Zhili Hao

Mechanical & Aerospace Engineering Faculty Publications

Aim: This study investigates the feasibility of using radial and carotid arterial pulse signals to assess cardiovascular (CV) function at rest and during post-exercise recovery in a heart transplant (HTx) patient. Method: Two micro-fabricated tactile sensors were used to simultaneously acquire arterial pulse signals at the radial artery (RA) and carotid artery (CA). Measurements were taken at rest and at multiple time points post-exercise on three subjects: an HTx patient, a percutaneous coronary intervention (PCI; coronary stent) patient and a healthy control. An SDOF-TF-based time-frequency analysis algorithm was applied to extract a comprehensive set of CV parameters, including heart rate …