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Associations Between Sport Performance Anxiety And Parental Pressure Among Ncaa Division Iii Athletes, Brianna N. Lane, Kristen Mcalexander
Associations Between Sport Performance Anxiety And Parental Pressure Among Ncaa Division Iii Athletes, Brianna N. Lane, Kristen Mcalexander
International Journal of Exercise Science: Conference Proceedings
Earlier studies have examined causes of anxiety among college student athletes, but the relationships among parental pressure and anxiety among college student athletes is less understood. Purpose: To measure the associations among types of parental pressure and sport performance anxiety among NCAA Division III collegiate athletes. Methods: Voluntary student athletes (Female=35, Male= 21) from NCAA Division III sports teams (Softball= 7, Baseball= 8, Volleyball= 8, Basketball= 8, Track & Field= 3, Tennis= 5, Soccer= 9, Multiple sports= 8) answered a modified version of the Sports Anxiety Scale-2 and PISQ (Parental Involvement in Sport Questionnaire). Questions measured sport performance …
Sex Difference In Cardiorespiratory Stress From High-Intensity Interval Exercise, Paolo Miguel Salvador, Mauricio Martinez, Joaquin Gonzales, Eric Rivas
Sex Difference In Cardiorespiratory Stress From High-Intensity Interval Exercise, Paolo Miguel Salvador, Mauricio Martinez, Joaquin Gonzales, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
High-intensity interval exercise is time efficient and has similar cardiorespiratory health benefits as moderate-intensity continuous exercise. However, the prescription of high-intensity exercise may differ between men and women due to sex differences in cardiovascular function. PURPOSE: Therefore, the objective of this study was to examine whether sex differences exist for absolute and relative oxygen uptake (VO2) and heart rate (HR) when exercise was performed at a percentage of maximal cycling work rate measured in watts (Wmax). METHODS: We recruited 8 active college-aged participants (5 men, 3 women). Participants completed an incremental maximal exercise test on a …
No Sex Effect On Cerebral Blood Flow Hemodynamics During Post-Exercise Hyperthermia, Mauricio Martinez, Kyleigh Allie, Paolo Miguel Salvador, Lauren Schoech, Eric Rivas
No Sex Effect On Cerebral Blood Flow Hemodynamics During Post-Exercise Hyperthermia, Mauricio Martinez, Kyleigh Allie, Paolo Miguel Salvador, Lauren Schoech, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
Females have greater orthostatic intolerance and increased adrenergic sensitivity to passive heat stress compared to males. It is unknown how cerebral blood flow is affected during post-exercise recovery from exercise heat stress. PURPOSE: We tested the hypothesis that females would have lower middle cerebral artery blood flow velocity (MCAvmean) during recovery from exercise hyperthermia. METHODS: Twenty-two healthy active adult (7 day activity: 8620±3008 steps/day; VO2max: 49±10 mL/kg/min) subjects (11M/11F, 22.4±4.9y, 169±7.55cm, 68.3±13kg) exercised at a similar metabolic heat production (M: 7.1±1.5 W/kg and F: 6.9±1.4 W/kg; P=0.32) for 60 minutes (cycle ergometer) in cool (24±0.0 ⁰C; 14.4±3.6 …
Impact Of Fluid Consumption On Estimates Of Intracellular, Extracellular, And Total Body Water From Multi-Frequency Bioelectrical Impedance Analysis, Marqui Benavides, Baylor A. Johnson, Patrick S. Harty, Matthew T. Stratton, Jacob Dellinger, Robert W. Smith, Abegale D. Williams, Christian Rodriguez, Sarah White, Grant M. Tinsley
Impact Of Fluid Consumption On Estimates Of Intracellular, Extracellular, And Total Body Water From Multi-Frequency Bioelectrical Impedance Analysis, Marqui Benavides, Baylor A. Johnson, Patrick S. Harty, Matthew T. Stratton, Jacob Dellinger, Robert W. Smith, Abegale D. Williams, Christian Rodriguez, Sarah White, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Multi-frequency bioelectrical impedance analysis (MFBIA) is able to distinguish between total body water (TBW), extracellular water (ECW) and intracellular water (ICW). Low-frequency currents are thought to primarily pass through ECW, while high-frequency currents pass through all body fluids (i.e., TBW). ICW can then be estimated by subtracting ECW from TBW. As such, MFBIA may have utility for monitoring health conditions resulting in water retention within specific fluid compartments. However, the sensitivity of fluid estimates from MFBIA is not fully established. PURPOSE: To evaluate the effects of acute fluid ingestion on body water estimates produced by a MFBIA analyzer. METHODS …
Females Have An Increased Sensitivity To Thermal Stress During Matched Exercise Metabolic Heat Production, Lauren Schoech, Kyleigh Allie, Paolo Miguel Salvador, Mauricio Martinez, Eric Rivas
Females Have An Increased Sensitivity To Thermal Stress During Matched Exercise Metabolic Heat Production, Lauren Schoech, Kyleigh Allie, Paolo Miguel Salvador, Mauricio Martinez, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
Females report greater sensitivity in pain and cold exposures. PURPOSE: It is unclear how thermal sensitivity is affected when the change for internal temperature (ΔTin) and metabolic heat production (MHprod) are matched during exposure to hot conditions. This project tested the hypothesis that females have enhanced sensitivity to thermal stress during exercise hyperthermia when ΔTin and MHprod is matched. METHODS:Twenty-two healthy active (7 day activity: 8620±3008 steps/day; VO2max: 49±10 mL/kg/min) adults (11M/11F, 22.4±4.9y, 169±7.6cm, 68.3±13kg) exercised at similar MHprod (M: 7.1±1.5 W/kg, F: 6.9±1.4 W/kg; P=0.32) for 60 min (cycle ergometer) …
Comparison Of Bioimpedance Analysis And Dual Energy X-Ray Absorptiometry In Division Iii Football Athletes, Dylan J. Birdsell, Grant Tinsley, Javier Zaragoza, Matthias Tinnin, Jessica Prather, Christine Harrison, Shay Smith, Chris Lockwood, Lem Taylor
Comparison Of Bioimpedance Analysis And Dual Energy X-Ray Absorptiometry In Division Iii Football Athletes, Dylan J. Birdsell, Grant Tinsley, Javier Zaragoza, Matthias Tinnin, Jessica Prather, Christine Harrison, Shay Smith, Chris Lockwood, Lem Taylor
International Journal of Exercise Science: Conference Proceedings
Body composition is an integral component of physiology and pathology, as well as an indication of how the musculoskeletal system changes over time in response to training and/or nutritional modifications. Two common methods of estimating body composition include bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA). There is a debate regarding the agreement between these two methods, and it is thought that the population being tested may influence the similarity of estimates obtained by these technologies. Limited data comparing these two methodologies in athletic populations are available. PURPOSE: The purpose of this study was to take examine the agreement …
Exaggerated Pulsatility During Exercise Is Associated With Reduced Muscle Strength And Quality In Elderly Hypertensives, Stephen M. Fischer, Arun Maharaj, Arturo Figueroa
Exaggerated Pulsatility During Exercise Is Associated With Reduced Muscle Strength And Quality In Elderly Hypertensives, Stephen M. Fischer, Arun Maharaj, Arturo Figueroa
International Journal of Exercise Science: Conference Proceedings
It is well-established that hypertensive individuals have an exaggerated systolic blood pressure in response to exercise. Leg muscle weakness is related to greater left ventricular (LV) mass in hypertensive individuals via exaggerated increases in blood pressure during aerobic exercise. Pulse pressure (PP) is an indicator of LV pulsatile hemodynamic load. Increased PP is associated with LV hypertrophy and dysfunction in older adults. PURPOSE: To determine differences in PP responses to resistance exercise in normotensive versus hypertensive older adults and the influence of lean mass and strength on these responses. METHODS: Nine normotensive (NTN) and 11 hypertensive (HTN) older adults (NTN …
Influence Of Subject Presentation On Body Composition Estimates From Dual-Energy X-Ray Absorptiometry, Air Displacement Plethysmography, And Bioelectrical Impedance Analysis, Patrick S. Harty, Matthew T. Stratton, Baylor A. Johnson, Jacob R. Dellinger, Marqui L. Benavides, Robert W. Smith, Sarah J. White, Abegale D. Williams, Christian Rodriguez, Grant M. Tinsley
Influence Of Subject Presentation On Body Composition Estimates From Dual-Energy X-Ray Absorptiometry, Air Displacement Plethysmography, And Bioelectrical Impedance Analysis, Patrick S. Harty, Matthew T. Stratton, Baylor A. Johnson, Jacob R. Dellinger, Marqui L. Benavides, Robert W. Smith, Sarah J. White, Abegale D. Williams, Christian Rodriguez, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Body composition assessment devices are commonly employed to track changes associated with exercise or nutritional interventions. However, many individuals undergo body composition assessments with little to no pre-testing standardization of dietary intake or physical activity, potentially introducing error into their results. PURPOSE: To examine the validity of unstandardized body composition assessments relative to standardized assessments using three common body composition assessment devices. METHODS: Twenty-three resistance-trained males (Mean ± SD; 21.6 ± 2.6 years; 71.3 ± 6.8 kg; 177.4 ± 5.9 cm; 17.4 ± 4.1% DXA-derived percent body fat [%BF]) underwent paired body composition assessments via dual-energy x-ray absorptiometry …
Association Between Mental Health And Healing Among Elderly Physical Therapy Patients, Marlee C. Daniel, Kristen Mcalexander
Association Between Mental Health And Healing Among Elderly Physical Therapy Patients, Marlee C. Daniel, Kristen Mcalexander
International Journal of Exercise Science: Conference Proceedings
Despite their documented successes, mental health interventions are rarely a focus during physical therapy treatments, particularly among the geriatric population. PURPOSE: To measure mental health status and perceived healing among physical therapy patients aged 60 years or older. METHODS: Ten participants (5 males, 5 females) were recruited at a local physical therapy clinic. Three participants (N males=1, M age=67 years, N females=2, M age=80.5 years), were able to complete a modified version of the Generalized Anxiety Disorder 7-item Scale (GAD-7) that included a self-reported healing scale. RESULTS: Female participants reported feeling nervous, worried, and fearful less …
Differences In Maximal Oxygen Uptake Between Non-Athlete Schreiner Female Students And Division Iii College Tennis Women, Iris J. Montero, Kristen Mcalexander
Differences In Maximal Oxygen Uptake Between Non-Athlete Schreiner Female Students And Division Iii College Tennis Women, Iris J. Montero, Kristen Mcalexander
International Journal of Exercise Science: Conference Proceedings
Rates of obesity and physical inactivity continue to rise, particularly among women. PURPOSE: To measure the difference between maximal oxygen consumption between female NCAA Division III college athletes and female non-NCAA Division III athletes. METHODS: Voluntary, female NCAA Division III tennis athletes (N=9, M age=20.1 years) and female non-athletes (N=9, age= M 20.4 years) were recruited by the researcher in Spring 2019. Participants self-reported height and weight to calculate Body Mass Index (M=23.88 kg/m2, SD=5.46 kg/m2) and completed the Queen’s College Step Test. Maximal oxygen consumption was …
Body Fat Gain Automatically Increases Lean Mass By Changing The Fat-Free Component Of Adipose Tissue, Matthew T. Stratton, Patrick S. Harty, Robert W. Smith, Jacob Dellinger, Baylor A. Johnson, Marqui Benavides, Abegale D. Williams, Sarah White, Christian Rodriguez, Grant M. Tinsley
Body Fat Gain Automatically Increases Lean Mass By Changing The Fat-Free Component Of Adipose Tissue, Matthew T. Stratton, Patrick S. Harty, Robert W. Smith, Jacob Dellinger, Baylor A. Johnson, Marqui Benavides, Abegale D. Williams, Sarah White, Christian Rodriguez, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Estimating alterations in lean mass in response to various training interventions is a primary concern for many investigations. However, previous reports have suggested that lean mass estimates from weight loss interventions may be significantly altered by attempting to correct for changes in the fat-free component of adipose tissue (FFAT). This component, consisting primarily of water and protein, has been estimated as ~15% of adipose tissue (AT) mass. While a preliminary examination of this correction method has been conducted in the instance of weight loss, it has yet to be investigated after a period of purposeful weight gain and resistance training. …
Sex Dimorphism In Muscle Damage-Induced Inflammation, Casey Appell, Mohamed Fokar, Jakob Vingren, Hui-Ying Luk
Sex Dimorphism In Muscle Damage-Induced Inflammation, Casey Appell, Mohamed Fokar, Jakob Vingren, Hui-Ying Luk
International Journal of Exercise Science: Conference Proceedings
Evidence suggests that estrogen can provide a protective effect against muscle damage-induced inflammation. However, to date, no study has directly compared the muscle damage-induced intramuscular cytokines gene expression between men and women. Purpose: The purpose was to determine the intramuscular cytokine response to a bout of unaccustomed eccentric exercise in men and women. Methods: Untrained men (n=8, 22 ± 3y) and women (n=8, 20 ± 1y) completed a session of 80 unilateral maximal eccentric knee extensions. Vastus lateralis samples were collected and analyzed for gene expression of Interleukin (IL)-6, IL-10, IL-15, tumor necrosis factor (TNF)-α, and transforming growth factor (TGF)-ß …
Relationship Between Muscular Performance Changes And Increases In Body Mass During Overfeeding Plus Resistance Training, Christian Rodriguez, Robert W. Smith, Matthew T. Stratton, Patrick S. Harty, Baylor A. Johnson, Jacob R. Dellinger, Marqui L. Benavides, Bradley Vincent, Abegale D. Williams, Sarah J. White, Grant M. Tinsley
Relationship Between Muscular Performance Changes And Increases In Body Mass During Overfeeding Plus Resistance Training, Christian Rodriguez, Robert W. Smith, Matthew T. Stratton, Patrick S. Harty, Baylor A. Johnson, Jacob R. Dellinger, Marqui L. Benavides, Bradley Vincent, Abegale D. Williams, Sarah J. White, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Two critical components of muscular performance are muscular strength (e.g., the maximal load that can be lifted for a given exercise) and muscular endurance (e.g., the maximal number of repetitions that can be performed at a given load). When seeking improvements in muscular performance, it is common to employ nutritional strategies that create an energy surplus and a resultant gain in body mass. Varying rates of body mass gain are often prescribed to optimize training adaptations, including improvements in muscular performance; however, the relationship between rate of body mass gain and muscular performance improvements, if any, is not entirely clear. …
Relationships Between Walking Speed And Lower Extremity Muscle Quality And Strength In Elderly Females, Ahalee C. Farrow, Chinonye C. Agu-Udemba, Ethan A. Mitchell, Ty B. Palmer
Relationships Between Walking Speed And Lower Extremity Muscle Quality And Strength In Elderly Females, Ahalee C. Farrow, Chinonye C. Agu-Udemba, Ethan A. Mitchell, Ty B. Palmer
International Journal of Exercise Science: Conference Proceedings
The link between walking speed, rectus femoris (RF) muscle quality [echo intensity (EI)], and maximal and rapid strength in older adults is not well understood. PURPOSE: To examine the relationships between walking speed, RF EI, and maximal and rapid isometric torque characteristics of the leg extensors in elderly females. METHODS: Twenty elderly females (age = 67 ± 4 years; height = 159 ± 6 cm; mass = 68 ± 7 kg) underwent one diagnostic ultrasound assessment followed by three isometric maximal voluntary contractions (MVC) of the leg extensors and a 6-min walk test. RF EI was measured on the right …
Sex-Related Differences In Maximal And Rapid Hamstrings To Quadriceps Strength Capacities, Ethan A. Mitchell, Chinonye C. Agu-Udemba, Ahalee C. Farrow, Ty B. Palmer
Sex-Related Differences In Maximal And Rapid Hamstrings To Quadriceps Strength Capacities, Ethan A. Mitchell, Chinonye C. Agu-Udemba, Ahalee C. Farrow, Ty B. Palmer
International Journal of Exercise Science: Conference Proceedings
The balance between leg flexor and extensor strength, which is typically assessed using the hamstrings to quadriceps (H/Q) strength ratio, has been implicated as an important factor in the kneejoint stability of younger populations. Sex differences in hamstrings and quadriceps maximal and rapid strength are commonly reported between young men and women; however, few studies have investigated the influence of sex on maximal and rapid strength H/Q ratios. PURPOSE: To examine sex-related differences in maximal and rapid strength H/Q ratios between college-aged men and women. METHODS: Ten physically-active men (age = 23 ± 3 years; height = 177 …
Relationship Between Rate And Composition Of Mass Gain During Overfeeding Plus Resistance Training, Robert W. Smith, Patrick S. Harty, Matthew T. Stratton, Jacob Dellinger, Marqui Benavides, Baylor A. Johnson, Abegale D. Williams, Sarah White, Christian Rodriguez, Bradley Vincent, Grant M. Tinsley
Relationship Between Rate And Composition Of Mass Gain During Overfeeding Plus Resistance Training, Robert W. Smith, Patrick S. Harty, Matthew T. Stratton, Jacob Dellinger, Marqui Benavides, Baylor A. Johnson, Abegale D. Williams, Sarah White, Christian Rodriguez, Bradley Vincent, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
A common goal among athletes is to gain additional body mass (BM), particularly fat-free mass (FFM), in order to improve muscle strength, power, and overall performance. Athletes typically undergo BM accretion over a specific period of time in conjunction with high-volume resistance training (RT) in order to preferentially gain FFM and promote concomitant muscular performance improvements. PURPOSE: The purpose of this study was to examine the relationship between the rate of BM gain and the proportion of BM gained as FFM versus fat mass (FM) during a 6-week period of overfeeding and resistance training. METHODS: 21 resistance-trained males …
Influence Of Acute Water Ingestion On Bioelectrical Impedance Analysis Estimates Of Body Composition, Jacob R. Dellinger, Baylor A. Johnson, Matthew T. Stratton, Patrick S. Harty, Marqui Benavides, Sarah White, Abegale D. Williams, Robert W. Smith, Grant M. Tinsley
Influence Of Acute Water Ingestion On Bioelectrical Impedance Analysis Estimates Of Body Composition, Jacob R. Dellinger, Baylor A. Johnson, Matthew T. Stratton, Patrick S. Harty, Marqui Benavides, Sarah White, Abegale D. Williams, Robert W. Smith, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Body composition estimation is a significant component of health and fitness assessments. Multi-frequency bioelectrical impedance analysis (MFBIA) uses multiple electrical frequencies that travel through body tissues in order to estimate fluid content and body composition. Prior to body composition assessments, it is common to implement a wet fast (i.e., a fasting period that allows water intake); however, the influence of a wet fast as compared to a dry fast (i.e., disallowing water intake) is relatively unknown. PURPOSE: To determine the effects of acute water consumption on MFBIA body composition estimates. METHODS: A randomized crossover study was conducted in …
Agreement Between 4-Compartment Model And 7-Site Ultrasonography For Tracking Weight Training-Induced Changes In Body Composition, Abegale D. Williams, Grant M. Tinsley, Matthew T. Stratton, Patrick S. Harty, Marqui Benavides, Sarah White, Baylor A. Johnson, Robert W. Smith, Jacob Dellinger, Christian Rodriguez
Agreement Between 4-Compartment Model And 7-Site Ultrasonography For Tracking Weight Training-Induced Changes In Body Composition, Abegale D. Williams, Grant M. Tinsley, Matthew T. Stratton, Patrick S. Harty, Marqui Benavides, Sarah White, Baylor A. Johnson, Robert W. Smith, Jacob Dellinger, Christian Rodriguez
International Journal of Exercise Science: Conference Proceedings
Tracking body composition changes provides valuable information in a variety of contexts, including aging, disease, and lifestyle interventions. The 4-Compartment (4C) model is widely accepted as a criterion molecular-level method for evaluating body composition by integrating data from dual-energy x-ray absorptiometry (DXA), air displacement plethysmography (ADP), and bioimpedance spectroscopy (BIS). Ultrasonography (US) is another method of body composition estimation that evaluates subcutaneous adipose tissue at various body sites. PURPOSE: To evaluate the agreement between body composition changes detected by a molecular-level 4C model and a 7-site skinfold thickness-based US method in response to weight training and a hypercaloric diet. …
Tracking Resistance Training-Induced Changes In Body Composition Via 3-Dimensional Optical Scanning, Sarah J. White, Patrick S. Harty, Matthew T. Stratton, Jacob R. Dellinger, Baylor A. Johnson, Robert W. Smith, Abegale D. Williams, Marqui L. Benavides, Grant M. Tinsley
Tracking Resistance Training-Induced Changes In Body Composition Via 3-Dimensional Optical Scanning, Sarah J. White, Patrick S. Harty, Matthew T. Stratton, Jacob R. Dellinger, Baylor A. Johnson, Robert W. Smith, Abegale D. Williams, Marqui L. Benavides, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Tracking changes in body composition is potentially useful for monitoring health status, disease risk, and results of lifestyle interventions. In active individuals, evaluating body composition changes over time may provide useful information regarding the effectiveness of nutrition and exercise programs. PURPOSE: The purpose of this study was to compare changes in body composition estimates obtained from a 4-compartment (4C) model and a 3-dimensional optical (3DO) scanner in resistance-trained males. METHODS: Twenty resistance-trained males underwent assessments via 4C and 3DO before and after 6 weeks of supervised resistance training plus overfeeding with a high-calorie protein/carbohydrate supplement. To generate the …
Age-Related Differences In Forearm Muscle Size And Handgrip Maximal And Rapid Force Characteristics, Chinonye C. Agu-Udemba, Ethan Mitchell, Ahalee C. Cathey, Ty B. Palmer
Age-Related Differences In Forearm Muscle Size And Handgrip Maximal And Rapid Force Characteristics, Chinonye C. Agu-Udemba, Ethan Mitchell, Ahalee C. Cathey, Ty B. Palmer
International Journal of Exercise Science: Conference Proceedings
With handgrip strength being an important predictor of future disability and mortality, it is essential to expand our understanding of the age-related changes in handgrip strength characteristics and their underlying mechanisms. Previous studies have reported that decreases in muscle size of the forearm may contribute to age-related deficits in wrist flexion strength. However, we are aware of no previous studies that have examined the contribution of forearm muscle size to age-related differences in handgrip strength, and more specifically, the age-related differences in handgrip maximal and rapid force characteristics. PURPOSE: To determine the effects of age on forearm muscle size …
Evaluation Of Fat-Free Mass Characteristics At Different Adiposity Levels: Impact Of Weight Status Stratification Method, Samantha V. Narvaez, Cherilyn N. Mclester, John R. Mclester, Kyung-Shin Park, Brett Nickerson
Evaluation Of Fat-Free Mass Characteristics At Different Adiposity Levels: Impact Of Weight Status Stratification Method, Samantha V. Narvaez, Cherilyn N. Mclester, John R. Mclester, Kyung-Shin Park, Brett Nickerson
International Journal of Exercise Science: Conference Proceedings
The method used to stratify weight status when evaluating fat-free mass (FFM) characteristics has primarily been based upon body mass index (BMI) and not body fat percent (BF%). As a result, it is unknown whether deviations in FFM characteristics are similar when stratifying weight status based upon BMI or BF%. Purpose: The purpose of this study was to evaluate FFM characteristics at different adiposity levels when stratifying weight status via BMI and BF%. Methods: 150 adults (50% males) participated in this study. 3-compartment (3C) model body composition was based upon body density (Db) via air displacement plethysmography (ADP) …
Dancers Exhibit Different Organizations Of Muscular Effort In The Dominant Versus Non-Dominant Limb During The Impact Phase Of The Grand Jeté, Brandon Nunley, Ryan Lanier, Isabella Gonzales, Tanya Calamoneri, Ali Duffy, John Robert Harry
Dancers Exhibit Different Organizations Of Muscular Effort In The Dominant Versus Non-Dominant Limb During The Impact Phase Of The Grand Jeté, Brandon Nunley, Ryan Lanier, Isabella Gonzales, Tanya Calamoneri, Ali Duffy, John Robert Harry
International Journal of Exercise Science: Conference Proceedings
Overuse musculoskeletal injuries of the hip, knee, and ankle are prevalent in dancers. Differences in muscular effort between the dominant and non-dominant limbs may increase musculoskeletal injury risk during dance movements involving a jump followed by a high-impact unilateral landing. PURPOSE: To investigate potential differences in lower extremity muscular effort (i.e., joint angular work) between the dominant and non-dominant limbs during the landing phase of a grand jeté movement in dancers. METHODS: Collegiate dancers consisting of eight women (19 ± 1 y; 54.7 ± 6.9 kg; 1.7 ± 0.1 m) and two men (21 ± 1 y; 70.6 …
Effects Of A 12 Week Walking Intervention On Exercise Barriers In Obesity Using An Anti-Gravity Treadmill, Hunter W. Turnipseed, Nadeeja N. Wijayatunga, Emily J. Dhurandhar
Effects Of A 12 Week Walking Intervention On Exercise Barriers In Obesity Using An Anti-Gravity Treadmill, Hunter W. Turnipseed, Nadeeja N. Wijayatunga, Emily J. Dhurandhar
International Journal of Exercise Science: Conference Proceedings
Exercise barriers in people with obesity, such as low quality of life, physical activity enjoyment, and self-efficacy may contribute to an increased sedentary lifestyle. However, the use of an anti-gravity treadmill that is able to support and elevate weight during exercise to reduce these barriers has not been examined. PURPOSE: To examine how an anti-gravity treadmill during 12- weeks of aerobic exercise effects Physical activity enjoyment (PAE), physical functioning, self-efficacy, and quality of life (QOL) in people with obesity. METHODS: 26 participants (10 male, 16 female) participated in a self-directed 12 week walking program using an anti-gravity treadmill. …
Exercise Cerebral Blood Flow Hemodynamics Differ In Hot Dry And Humid Conditions, Julianna J. Kilpatrick, Paolo Miguel Salvador, Kyleigh Allie, Eric Rivas
Exercise Cerebral Blood Flow Hemodynamics Differ In Hot Dry And Humid Conditions, Julianna J. Kilpatrick, Paolo Miguel Salvador, Kyleigh Allie, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
Passive and exercise-heat stress have been reported to cause reductions in cerebral blood flow (CBF); however, it is unknown if CBF velocity is different under hot dry and humid conditions. PURPOSE: This project tested the hypothesis that upright rest and exercise-heat stress in hot dry and humid conditions result in similar CBF reductions. METHODS: Seven healthy active (7 day activity: 9887±3564 steps/day; VO2max: 52±10 mL/kg/min) subjects (5M/2F, 24±9y, 171±6cm, 68±7kg) completed a 30 min baseline rest followed by 60 min of exercise at a rate of perceived exertion (RPE) of 12 (between light and somewhat hard) on a …
Attenuated Pulsatile Load During Metaboreflex Activation Is Associated With Excess Adiposity In Dynapenic Postmenopausal Women, Arun Maharaj, Salvador Jaime, Stephen Fischer, Arturo Figueroa
Attenuated Pulsatile Load During Metaboreflex Activation Is Associated With Excess Adiposity In Dynapenic Postmenopausal Women, Arun Maharaj, Salvador Jaime, Stephen Fischer, Arturo Figueroa
International Journal of Exercise Science: Conference Proceedings
The age-related loss in muscle strength (dynapenia) is associated with elevated blood pressure (BP) and fat mass (FM). Aortic pulse pressure (PP), rather than brachial PP, more closely relates to cardiovascular events because it represents left ventricular pulsatile load, which is particularly important in older women. Purpose: To examine the impact of dynapenia and adiposity on aortic BP responses to metaboreflex activation (post-exercise muscle ischemia, PEMI) in postmenopausal women. Methods: 71 postmenopausal women [(dynapenic, n=41, 57±1 years), (non-dynapenic, n=30, 59±1 years)] were included in this study. FM, percent body fat (BF%) and percent lean mass (LM%) were measured using Dual …
Lower Leg Lean Mass Is Associated With Reduced Pulse Pressure Amplification In Postmenopausal Women, Stephen M. Fischer, Salvador J. Jaime, Arun Maharaj, Arturo Figueroa
Lower Leg Lean Mass Is Associated With Reduced Pulse Pressure Amplification In Postmenopausal Women, Stephen M. Fischer, Salvador J. Jaime, Arun Maharaj, Arturo Figueroa
International Journal of Exercise Science: Conference Proceedings
Sarcopenia, the age-related loss of skeletal muscle mass, has been associated with increased arterial stiffness (pulse wave velocity, PWV). Lower leg muscle mass has been associated with increased brachial-ankle PWV (baPWV), a measure of systemic arterial stiffness. Pulse pressure (PP) is lower in the aorta compared to the brachial artery (PP amplification, PPA), in healthy individuals. PPA decreases with aging due to increased aortic stiffening. Lower PPA is an independent predictor of cardiovascular death. It is unknown whether leg muscle mass is associated with lower PPA in postmenopausal women. Purpose: To examine relationships between leg lean mass (LegLM), PPA, and …
Low Intensity Exercise Has Greater Acute Vascular Benefits For Reducing Arterial Stiffness In Hot Compared To Neutral Conditions, Kyleigh N. Allie, Julianna Kilpatrick, Paolo Salvador, Eric Rivas
Low Intensity Exercise Has Greater Acute Vascular Benefits For Reducing Arterial Stiffness In Hot Compared To Neutral Conditions, Kyleigh N. Allie, Julianna Kilpatrick, Paolo Salvador, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
Both exercise and passive heating cause acute reductions in blood pressure. It is unknown if exercise-heat stress causes likewise reductions or greater when combined. PURPOSE: This project tested the hypothesis that the resting and exercise-heat stress cause hypotension and improvements in arterial stiffness. METHODS: Seven healthy active (7 day activity: 9887±3564 steps/day; VO2max: 52±10 mL/kg/min ) subjects (5M/2F, 24±9y, 171±6cm, 68±7kg) completed a 30 min baseline rest followed by 60 min at an exercise intensity of their choice that represented their perceived exertion (RPE) of 12 (between light and somewhat hard) on a 20-point rating scale while being blinded to …
Validity Of Body Volume Estimates From Infrared 3-Dimensional Scanning And Dual-Energy X-Ray Absorptiometry As Compared To Air Displacement Plethysmography, Marqui Benavides, Michael Moore, Jacob Dellinger, Claire Underwood, Tyler Dierolf, Brian Adamson, Grant M. Tinsley
Validity Of Body Volume Estimates From Infrared 3-Dimensional Scanning And Dual-Energy X-Ray Absorptiometry As Compared To Air Displacement Plethysmography, Marqui Benavides, Michael Moore, Jacob Dellinger, Claire Underwood, Tyler Dierolf, Brian Adamson, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Traditional methods of estimating body volume (BV) such as hydrostatic weighing and air-displacement plethysmography (ADP) could theoretically be replaced using BV estimates obtained by dual-energy x-ray absorptiometry (DXA) or infrared 3-dimensional (3D) scanning devices. Multiple 3D scanning technologies have recently become popularized, including scanners that acquire data through pattern deformations caused by the projected light over the 3D object (i.e., structured light [SL] scanners) or by calculating depth from the time it takes reflected photons to reach the scanner’s image sensor (i.e. time of flight [ToF] scanners). While these 3D scanning technologies currently predict body composition based primarily on circumference …
Skin Temperature And High Dew Point In Hot Environments Affects Self-Paced Exercise, Paolo Miguel Salvador, Julianna Kilpatrick, Kyleigh Allie, Eric Rivas
Skin Temperature And High Dew Point In Hot Environments Affects Self-Paced Exercise, Paolo Miguel Salvador, Julianna Kilpatrick, Kyleigh Allie, Eric Rivas
International Journal of Exercise Science: Conference Proceedings
Dew point (dp) is the absolute measure of water vapor and directly affects comfort whereas 5-10℃ feels dry; 10-15℃ feels comfortable and 20-24℃ feels uncomfortable. PURPOSE: This project tested the hypothesis that exercise in hot ambient conditions with a high dp (>20℃) would affect the selection of self-paced exercise compared to neutral dry conditions (dp). METHODS: Six healthy active (7 day activity: 9826±3900 steps/day; VO2max: 52±10 mL/kg/min ) subjects (4M/2F, 25±9y, 171±6cm, 69±7kg) completed a 30 min baseline rest then 60 min of exercise intensity they chose that represents their perceived exertion of 12 …
Age-Related Differences In Vertical Jump Power And Muscle Size And Quality Of The Vastus Lateralis, Ahalee C. Cathey, Chinonye C. Agu-Udemba, Eric J. Sobolewski, Brennan J. Thompson, Ty B. Palmer
Age-Related Differences In Vertical Jump Power And Muscle Size And Quality Of The Vastus Lateralis, Ahalee C. Cathey, Chinonye C. Agu-Udemba, Eric J. Sobolewski, Brennan J. Thompson, Ty B. Palmer
International Journal of Exercise Science: Conference Proceedings
Previous studies have reported that decreases in muscle size and quality of the vastus lateralis (VL) may contribute to the lower vertical jump power observed in old compared to young males. However, we are aware of no previous studies that have examined the contribution of VL muscle size and quality to age-related power differences in females, nor have there been any studies that examined these differences between young, middle, and older age groups. PURPOSE: To determine the effects of age on vertical jump power and muscle size (cross-sectional area [CSA]) and quality (echo intensity [EI]) of the VL in young, …