Education Commons^™

Impact Of Menstrual Cycle On Submaximal Exercise Vo2 And Critical Power In Active Eumenorrheic Females, Emma W. Ware, Adelle Kanaan, Erika R. Zoellner, Catherine Mbango, Deltra Muoki, Wayne Brewer, Mindy Patterson, Derek Miketinas, Siddhartha Angadi Facsm, Brandon J. Sawyer, Glenn A. Gaesser Facsm, Wesley J. Tucker

International Journal of Exercise Science: Conference Proceedings

The effects of the menstrual cycle (MC) on exercise metabolism and performance are equivocal. PURPOSE: To investigate whether the MC impacted submaximal exercise oxygen consumption (VO₂) and Critical Power (CP) in recreationally active, eumenorrheic females. METHODS: Eight eumenorrheic females (Age: 33±8 y, VO_2max: 36.9±3.8 ml/kg/min) completed fasted exercise testing in 3 distinct phases of the MC (early follicular, late follicular, and mid luteal). MC phase was determined using calendar-based counting, ovulation test strips, and confirmed via serum hormones (estrogen and progesterone). For submaximal exercise, participants cycled for 20 min at 50% VO_2max while VO_{2 …}

Acute Effects Of Different Volumes Of High-Intensity Interval Training And Continuous Aerobic Exercise In Vascular Reactivity, Josue Reyes, Manuel Gomez, Bailey Ramirez, Jorge De Castro, Esther Afangideh, Daniel Conde, Alvaro N. Gurovich

International Journal of Exercise Science: Conference Proceedings

Endothelial dysfunction is characterized by the unbalance between vasodilatory and vasoconstrictor mechanisms. Furthermore, this is recognized as the initial step to developing cardiovascular disease. Exercise plays an important role in both cardiac rehabilitation and cardiovascular risk prevention. However, some new exercise modalities, such as high-intensity interval training (HIIT), are becoming more popular, and limited information about their effect on the endothelium is available. PURPOSE: to determine what volume of HIIT will improve endothelial function than continuous moderate exercise intensity. METHODS: Six young apparently healthy subjects were recruited for seven laboratory visits. The first visit included a graded exercise test, in …

Greater Macrovascular But Not Microvascular Function In Hispanic Adults, Justo Perez Iii, Randy Liu, Ruby A. Nyarko, Ethan Joergensen, Jasdeep Kaur

International Journal of Exercise Science: Conference Proceedings

According to the 2023 AHA Heart Disease and Stroke Statistics update, Hispanics exhibit the highest prevalence of type II diabetes (men: 14.5%, women 12.3%) compared to non-Hispanic White (NHW men: 11.5%, women 7.7%) and Non-Hispanic Black (men: 11.8%, women 13.3%). Endothelial dysfunction is a precursor to cardiovascular diseases including type II diabetes; however, it remains unknown whether healthy asymptomatic Hispanic adults present a reduced endothelial function before the onset of cardiovascular symptoms. Although two previous studies have compared the endothelial function in Hispanic and Non-Hispanic White individuals, these studies included smokers and obese individuals. PURPOSE: To date, no study …

Exercise Pressor Response In Hispanic Adults With Family History Of Hypertension, Ashlesha D. Dalve, Justo Perez Iii, Ruby A. Nyarko, Jasdeep Kaur

International Journal of Exercise Science: Conference Proceedings

Family history of hypertension (FHH), being an unmodifiable risk factor, increases probability of developing hypertension and other cardiovascular diseases. The prevalence of hypertension in Hispanic/Latino (H/La) males is 50.3%, while it is 48.9% in non-Hispanic white (NHW) males and 57.5% in non-Hispanic black (NHB) males. Among adolescents aged 8 to 17, H/La youth has the highest incidence of hypertension as compared to all other races. It is evident that young normotensive adults with positive family history of hypertension (+FHH) exhibit exaggerated exercise pressor response. Additionally, a higher sympathetic activity to cold pressor test (CPT) was found in normotensive NHB adults …

The Transient Influence Of Acute Bouts Of Aerobic Exercise On Vitamind Concentrations In Moderate Stages Of Chronic Kidney Disease, Meena Meiyyappan, Leroy Bolden, Tomas Chapman-Lopez, Ricardo Torres, James K. Taylor, Keri Collins, Crawford Allison, Panagiotis Koutakis, Jeff S. Forsse

International Journal of Exercise Science: Conference Proceedings

Chronic kidney disease (CKD) is a gradual loss of renal filtration and has been shown to be associated with lower levels of vitamin D (Vit-D). Vit-D is highly synthesized in the kidneys and is linked to multiple health conditions. Aerobic exercise of differing intensity and modality has shown potential in acutely improving Vit-D concentration in healthy and diseased populations. Purpose: To determine the influence of acute bouts of high-intensity interval exercise (HIIE) and steady-state exercise (SSE) on Vit-D concentrations in individuals with moderate stages of CKD. Methods: A total of 13 participants (n = 7 women; n = 6 men; …

The Influence Of High-Intensity Interval Exercise On Vitamin-D Concentrations In Healthy Individuals, Leroy K. Bolden, Tomas Chapman-Lopez, Ricardo Torres, Jeffery Heileson, Meena Meiyyappan, Jeff S. Forsse

International Journal of Exercise Science: Conference Proceedings

Vitamin D (VD) deficiency is one of the most common deficiencies in the world due to various factors (e.g., lack of sun exposure, dietary considerations). Currently the utilization of exercise may act as an intervention for VD deficiencies to promote increases in VD concentrations in healthy populations. This could largely be due to the loss of calcium from aerobic exercise (AE), leading to a hormonal response [(e.g., parathyroid hormone (PTH)] and the activation of cytochrome’s (e.g., CYP2R1, CYP27B1) responsible for the regulation of VD. Thus, AE may serve as an intervention to promote VD synthesis due to the impacted biological …

Firefighters Versus Law Enforcement Officers: A Comparison Of Cardiovascular Disease Risk, Bethany C. Guerra, Hunter Martaindale, Steven E. Martin, Lisa C. Colvin, Drew E. Gonzalez, Matthew J. Mcallister

International Journal of Exercise Science: Conference Proceedings

Firefighters (FF) and law enforcement officers (LEO) have heightened cardiovascular disease (CVD) risk due to the stressful nature of their occupations. Data suggest that 45% of on-duty FF fatalities are related to CVD, while LEO have a 1.7 times higher CVD prevalence compared to the general public. To our knowledge, studies comparing FF to LEO, in terms of CVD risk factors, have not been published. This information is necessary to better understand differences in occupational disease risk, as well as to help bridge the gap between stress and CVD markers. PURPOSE: To compare CVD risk biomarkers, fitness, and body …

Paroxysmal Atrial Fibrillation In A Life-Long Endurance Athlete: A Descriptive Case Study, Timothy Curry, Scott N. Drum

International Journal of Exercise Science: Conference Proceedings

The diagnosis of atrial fibrillation (AF) in lifelong endurance athletes occurs at a greater incidence over a lifetime vs the undertrained, general population. In fact, the more intense an aerobic-oriented person trains or races and over a greater amount of time, the higher the diagnosis of general cardiac arrhythmias. PURPOSE: Therefore, the primary aim was to observe the cumulative effects of life-long endurance training (since the age of 10-yrs old) and the yearly occurrences of paroxysmal AF (PAF) in an otherwise healthy, 53-yr-old male. METHODS: The complete health history of a 53-yr-old male (ht: 1.83 m, wt: 72.7 kg, …

Bicycle Handlebar Width Does Not Affect Spirometry, Ventilation, Or Gas Exchange, Matthew J. Fahey, Daniel T. Cannon

International Journal of Exercise Science: Conference Proceedings

Bicycle fit may affect comfort, aerodynamics, efficiency, ventilation, and power generation. Handlebars determine how the rider interacts with the bicycle. A wide range of handlebar widths are commercially available, but it is unclear if the resultant position affects lung function, ventilation, gas exchange, or efficiency. PURPOSE We aimed to measure the effects of handlebar widths on ventilation, gas exchange, spirometry, and comfort during moderate constant power exercise. METHODS Twenty-four recreationally active adults completed the study (32 ± 5 yrs., 175 ± 9 cm, 74 ± 12 kg, 8 women, 16 men). Participants completed three moderate constant power bouts of exercise …

Validity And Reliability Of The Polar Oh1 Biceps-Band Heart Rate Monitor During Pickleball, Jamaal K. Bovell, Dustin W. Davis, Bryson Carrier, Setareh Zarei, Tashari A. Carballo, Matahn Blank, Thea Sweder, Samantha Cruz, Elias M. Malek, James W. Navalta

International Journal of Exercise Science: Conference Proceedings

Pickleball is making a name for itself as one of the fastest growing sports in the United States. According to the Association of Pickleball Professionals (APP), 14% of Americans 18 years and over (~36.5 million people) played pickleball at least once in 12 months. With almost half of the total players planning to play more often in the upcoming months, pickleball is certain to continue its ascension. It is unclear if paying intensity can be gauged accurately and reliably with heart rate (HR) measurements from biceps-band monitors. PURPOSE: This study aimed to determine the validity and reliability of the Polar …

The Effect Of Menstruation Duration On The Achilles Tendon Cross-Sectional Area In Female Ballet Dancers, Kaitong Li, Wayne Johnson, Steven Allen, Shayla Bott, Chris Dillon, Joshua Sponbeck, Camille Nguyen Jones, Annie Smedley

International Journal of Exercise Science: Conference Proceedings

Females are more likely to suffer Achilles tendon injury that consequently leads to more complications including pain or tendon rupture, and experiencing fewer benefits from therapeutic interventions. There is a lack of knowledge on how estrogen, which may limit collagen synthesis, can affect tendon health and growth. PURPOSE: The objective of this study is to examine the relationship between menstruation duration and cross-sectional area (CSA) of the Achilles tendon over a 5-month period of intensive dance training. We hypothesize the female dancers who reported a menstruation duration of 1-3 days will have the smallest average tendon CSA in comparison …

Evaluation Of Caloric Expenditure Metrics Of Garmin Instinct Wearable Technology Devices During Pickleball, Matahn A. Blank, Dustin W. Davis, Bryson Carrier, Tashari A. Carballo, Jae K. Bovell, Thea Sweder, Samantha Cruz, Zhihao Yu, Setareh Zarei, James W. Navalta

International Journal of Exercise Science: Conference Proceedings

While tennis and badminton may present a moderate learning curve for beginners, pickleball, a similar racquet sport that has become increasingly popular in recent years, offers a notably simpler play-style that can be more easily adapted for new players. This sport has emerged during a time when wearable technology devices, such as the Garmin Instinct, have become commonly used to estimate physiological measures among individuals engaging in physical activity. Yet, there is little research that examines the validity and reliability of this technology during pickleball. PURPOSE: The purpose of this study was to assess the reliability and validity of …

Effects Of Biodensity Training On Lipid Profile In Young Women: A Pilot Study, Tristan R. Issa, Rosalinda Escobar-Prado, Auguste Torres, Maurice Cruz, Carolina Garcia, Braulio Cazarez, Nathaniel Bodell, Zhaojing Chen

International Journal of Exercise Science: Conference Proceedings

bioDensity training is a novel type of resistance exercise, which includes four basic isometric exercises in a subsequent fashion: chest press, leg press, core pull, and vertical lift. Although it’s primarily targeted on bone strength, a previous study showed that it improved HbA1C, fasting glucose, HDL, LDL and total cholesterol in elderly patients with Type 2 diabetes (Zheng et al. 2019). To date, the research on bioDensity training is limited, and its effects on a healthy population are unknown. PURPOSE: We are looking to examine the effects of 12-week bioDensity training on lipid profiles in young women. METHODS: …

Effects Of Nitrate Supplementation On In Vivo Muscle Torque Recovery From Bacl2-Induced Injury, Dylan M. Kasper, Lloyd Marshall, Leonardo Nogueira

International Journal of Exercise Science: Conference Proceedings

During repair from muscle injury, muscle satellite cells depend on nitric oxide production by immune cells to proliferate and differentiate. Nitrate supplementation has been shown to improve muscle endurance and oxygen consumption, but little is known about the ability of nitrate supplementation to interfere with muscle regeneration following injury. PURPOSE: To investigate whether nitrate supplementation affects muscle recovery of force after muscle injury produced by intramuscular injection of barium chloride. METHODS: Transgenic male mice (12 weeks old) that express Td-Tomato fluorescent protein in Pax7+ cells (i.e., satellite cells; Pax7CreER-Ai9 mice) were treated with tamoxifen (2 mg in corn …

Diaphragm Force And Mitochondrial Function Ex Vivo Following Gsnor Inhibition In Vivo Preceding Mechanical Ventilation, Simon P. Pierce, Daniel T. Cannon, Leonardo Nogueira

International Journal of Exercise Science: Conference Proceedings

During mechanical ventilation (MV), force developed by the diaphragm is decreased over time much faster than locomotor muscles. This is known as ventilator-induced diaphragm dysfunction (VIDD), and VIDD may be accelerated by intramyofiber oxidative stress. An important free radical used for the treatment of acute respiratory distress syndrome (ARDS) is nitric oxide (NO) which can diffuse to diaphragm myofibers during treatment. However, little is known whether NO or NO by-products such as S-nitrosothiols (RSNO), can accelerate or prevent VIDD. PURPOSE: To investigate whether inhibiting S-nitrosoglutathione reductase (GSNORi) during MV could affect ex vivo diaphragm force and mitochondrial respiration. METHODS …

Single-Leg Resistance Exercise Training In Mice Leads To A Fast Increase In In Vivo Torque Of Anterior Crural Muscles, Lloyd K.T. Marshall, Dylan M. Kasper, Leonardo Nogueira Phd

International Journal of Exercise Science: Conference Proceedings

Resistance exercise is known to produce muscle hypertrophy. However, little is known about the role of muscle satellite cells in generating new myofibers or in incorporating satellite cells to live myofibers during exercise training. PURPOSE: To investigate whether single-leg resistance exercise training can activate the incorporation of muscle satellite cells in mice. METHODS: Transgenic male mice (12 weeks old) that express Td-Tomato fluorescent protein in Pax7+ (i.e., satellite cells) cells (Pax7CreER-Ai9) were treated with tamoxifen (2 mg in corn oil, i.p.) once a day for 5 days. Three days later, mice were single-leg exercise trained (i.e stimulation of …

Timing Of Nordic Hamstring Exercise In Youth Soccer Players To Reduce Injury, Brooke Butterick, Carson Gantzer, Jason Siegler

International Journal of Exercise Science: Conference Proceedings

The Nordic hamstring exercise (NHE) has been demonstrated to be an effective strength exercise to help mitigate the risk of hamstring injury in soccer players. It is a component of the FIFA 11+ grassroots injury prevention program, which is a series of warm-up exercises designed to be administered in large groups and at minimal cost. Recent evidence in adults suggests that the acute fatigue associated with the NHE may increase the risk of injury during training, causing some to suggest moving the NHE until the end of training. PURPOSE: To determine whether this same level of fatigue persists in young …

Resistance Exercise, Muscle Strength, Physical Function And Quality Of Life In Head And Neck Cancer Patients Undergoing Chemoradiation, Ezrie Pace, Kathryn Dispennette, Dukagjin Blakaj, Zachary Chaplow, Brian Focht

International Journal of Exercise Science: Conference Proceedings

Chemoradiation therapy (CRT) is the standard of care treatment for Head and Neck Cancer (HNCa) patients. Despite its established therapeutic efficacy, adverse effects accompanying CRT result in clinically-meaningful declines in muscle strength, physical function and quality of life (QOL). The adverse effects observed during CRT place HNCa patients at heightened risk for functional decline, mortality, and morbidity. Accordingly, there is a pressing need to evaluate the utility of supportive care interventions, such as resistance exercise (RE), to attenuate the deleterious effects observed during CRT. PURPOSE: Determine the utility of implementing a group-mediated cognitive behavioral (GMCB) RE intervention in the treatment …

No Difference Found In Hamstring Strength Across Division I Football Positions, Hunter Jack, Kaden Kennard, Spencer Jezek, Joshua Sponbeck, Malorie Wilwand, A. Wayne Johnson

International Journal of Exercise Science: Conference Proceedings

Hamstring injuries are one of the most common injuries sustained in professional football with 800+ hamstring injuries per year. These hamstring injuries often occur between late swing (eccentric contraction) and early ground contact. PURPOSE: To investigate the correlation of eccentric hamstring strength to muscle volume across positional groups. METHODS: Athletes were divided into three homogeneous groups based on position (big (e.g., linemen), skill (e.g., receivers), combo (e.g., linebackers)). Seventy-three NCAA Division I football players participated (24 big, 37 skill, and 12 combo). Hamstring strength was collected for each leg while performing 3 Nordic curls on a Nordbord device. The peak …

Identifying Maximal Fat Oxidation During Arm Ergometry, Carly Schuerger, Zachary Jordan, Cristian Gonzales, Todd A. Astorino Facsm

International Journal of Exercise Science: Conference Proceedings

Metabolic responses have been extensively studied in response to various exercise modalities, such as treadmill running and cycling. Achten et al. (2002) demonstrated that graded exercise testing in trained cyclists using 3 minute (min) stages led to similar estimates of fat oxidation (FOx) and maximal fat oxidation (MFO) as 5 min stages. However, minimal research has studied FOx responses during exercises using arm cycle ergometry (ACE). PURPOSE: To compare FOx responses during progressive ACE using 3 and 5 min stages. METHODS: Participants consisted of 11 healthy, non-obese men and women (age = 24±9 yr, %BF

= 23±5%, VO2peak …

Effects Of Stair Stepping On Late Day Postprandial Glycemia, Austin M. Morales, William Wong, Jochen Kressler

International Journal of Exercise Science: Conference Proceedings

Increased postprandial glycemia is problematic as chronic increases make one more susceptible to diabetes, cardiovascular disease and mortality. It is important to explore exercise interventions that are convenient and effective in reducing postprandial glycemia. PURPOSE: The purpose of the current study was to investigate whether the benefits of very short, single bout stair stepping established for early day food consumption extend to late day food consumption. METHODS: Seven participants without glycemic control abnormalities performed two standard oral glucose tolerance tests (OGTT), consuming 75g of glucose dissolved in 350mL of water followed by assessment of blood glucose response for 2 …

Impact Of Submaximal Versus Supramaximal High-Intensity Interval Training On Blood Glucose Regulation In Type 2 Diabetes Mellitus: A Systematic Review And Meta-Analysis, Jennifer A. Weil, Daryl Lee Parker

International Journal of Exercise Science: Conference Proceedings

High-intensity interval training (HIIT) is an efficient form of exercise that can potentially induce significant and clinically meaningful blood glucose improvements in patients with Type 2 diabetes mellitus (T2DM). It is unknown whether certain HIIT interval intensities may be more effective than others in combating hyperglycemia in T2DM. PURPOSE: The purpose of this study was to determine if submaximal or supramaximal HIIT reduces blood glucose or improves markers of insulin resistance more than the other in T2DM patients using a systematic review and meta-analytical approach. METHODS: Three databases (Embase/MEDLINE, CENTRAL, and PubMed) were systematically searched in July 2021 …

Effects Of Aerobic Exercise On Individulas With Down Syndrome Via Telerehabilitation, Zeel K. Patel Miss, Isha Gautami, Namrata Jain, Jacob Hinkel-Lipsker Professor

International Journal of Exercise Science: Conference Proceedings

BACKGROUND: Most of the children and adolescents with Down’s syndrome (DS) have poor aerobic capacity, physical fitness and demonstrate diminished cognitive abilities. Recent studies suggest that increased physical activity may prove to be important for maintaining components of cognition, including memory along with physical fitness.

In addition, there is interest among practitioners in determining the efficacy of virtual exercise classes, which can be more convenient for clients. However, it is unknown whether group exercise classes delivered over videoconferencing achieve desired outcomes—particularly in special populations such as those with DS.

PURPOSE: The purpose of this study is to evaluate the effect …

The Rankl And Nox2 Signaling In The Duchenne Muscular Dystrophy Models Of Skeletal Muscle, Joo Hyun Kim, Mariam Othman, Khaled Moustafa, John Michael Lawler

International Journal of Exercise Science: Conference Proceedings

There is a severe sort of muscle disorder and dysfunction caused by a mutation of the dystrophin gene which is called Duchenne muscular dystrophy (DMD). The establishment of pathology in the limbs, respiratory systems, and hearts of DMD patients is the awareness of the main point for the inflammation and elevation of oxidative stress. NADPH oxidase-2 (Nox2) produces reactive oxygen species in response to skeletal muscle contractions. Recent studies show that various myopathy indicated the key stress response proteins which can modulate Nox2. The TRAF 6 and RANKL lead to Nox2 complex migration and construction. An increase of pro-inflammatory proteins …

Reliability Of Bell’S Test Conducted With Virtual Reality, Disha A. Kapoor, Karishma Patel, Annette Buitrago, Joseph B. Hazzard, William E. Amonette

International Journal of Exercise Science: Conference Proceedings

Cancellation tasks are commonly used assessment tools to detect unilateral neglect. Bell’s Test, one of the most commonly administered cancellation tasks, requires individuals to quickly and accurately identify “bells” randomly placed in an array of symbols. The reliability of Bells Test conducted with a paper and pencil is well established. A newly developed, commercial software application, allows Bell’s Test to be administered in fully immersive virtual reality environment. PURPOSE: The purpose of this study was to measure the reliability of the Bell’s Test using a virtual reality (VR) system and to establish the level of agreement between the pen-paper …

Sublingual Caffeine Supplementation And Its Effects On Physical Performance Measures In Highly Fit United States Military Personnel, Reggie B. O'Hara

International Journal of Exercise Science: Conference Proceedings

Caffeine is a commonly used countermeasure to combat sleep deprivation and alleviate physiological and psychological performance degradations in highly trained military personnel operating in extreme environments for extending periods. Although the mechanisms of action of caffeine are well described in the literature, the ergogenic effects of caffeine are variable based on the individual’s nutritional status, sensitivity to caffeine, genetics, dose, timing, and overall physical condition. PURPOSE: To explore the effects of moderate doses of sublingual caffeine on physical performance measures and perceptions of fatigue in highly fit U.S. military personnel. METHODS: A convenience sample of eleven highly trained, …

Preliminary Findings From A Pediatric Physical Activity Program For Children With Cancer, Paulette M. Yamada, Erin O. Bantum, Erin E. Centeio, Kelley Hutchins, Laura Bonilla, Carie Sumida, Jayna Lee, Sabrina Cao, Grace Lopez

International Journal of Exercise Science: Conference Proceedings

It is critical for pediatric patients diagnosed with cancer to engage in physical activity (PA) as it is associated with positive psychosocial outcomes and may improve physical function. However, physical activity opportunities for pediatric cancer patients are limited. PURPOSE: To test the feasibility and adherence of pediatric cancer patients to a virtual PA program. METHODS: Pediatric patients undergoing cancer treatment were referred to the Pediatric Physical Activity program (PePA) by the Children’s Hospital’s oncology team using rolling recruitment. The target sample size was 20-25 patients. Patients enrolled in an online 12-week PA intervention with similar-aged peers (2x/week, 60 …

Aerobic Fitness Levels Relate To Cognitive Function In People With Parkinson’S Disease As Assessed By The 6 Minute Walk Test, John Wallace, Kaylie Zapanta, E Todd Schroeder, Beth Fisher

International Journal of Exercise Science: Conference Proceedings

While individuals with Parkinson’s disease (PD) present with impaired motor control, 26% demonstrate cognitive impairment independent of dementia¹. In fact, cognitive dysfunction often predates motor impairments and can diminish quality of life² as well as life expectancy³. Fortunately, aerobic exercise has been shown to improve cognition in older adults⁴ as well as PD patients^5-7. However, only a limited number of studies have determined a clear relationship between aerobic fitness levels and cognition in people with PD. Determining whether cognitive status and aerobic fitness levels are associated in people with PD would provide …

The Relationship Between Catecholamines And Lactate Concentration In Response To Exercise In Adolescents With Obesity, Vincent Vuong, Daniela Rubin

International Journal of Exercise Science: Conference Proceedings

Epinephrine is a catabolic hormone that increases metabolism through glycolysis and glycogenolysis. During exercise, accelerated glycogen and glucose breakdown is associated with increased lactate production. Previous studies show obesity (OB) decreases the epinephrine response during exercise potentially affecting glucose metabolism and lactate production. PURPOSE: To compare the epinephrine and lactate responses in adolescents with OB and adolescents with normal weight (NW) and to determine if changes in epinephrine and lactate concentrations are associated. METHODS: 12 adolescents with OB (9.2 ± 1.2 y, 39.9 ± 6.8% body fat) and 12 adolescents with NW (17.5 ± 4.6% body fat) completed …

Aging Male Runners Show Achilles Tendon Thinning Following A 10k Run While Females Do Not - Pilot Analysis, Annie Smedley, Joshua Sponbeck, Benjamin Smedley, Aaron W. Johnson

International Journal of Exercise Science: Conference Proceedings

The Achilles tendon experiences large amounts of force while running, which leads to Achilles tendon adaptation. One known Achilles tendon adaptation to running is Achilles tendon thinning. The Achilles tendon thinning response has not been examined at multiple locations of the Achilles tendon and has not been studied in an aging (>50 y) population. PURPOSE: We examined the effect of a 10k run on Achilles tendon cross sectional area in three locations of the Achilles tendon in runners aged 50 years and older. METHODS: Seven runners - three male (age = 73.6 y ±8.2, height = 174.4 …