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Articles 991 - 1020 of 1402
Full-Text Articles in Kinesiology
“I Will Change The World”: The Intersection Of Social Change And Male College Athletes’ Leadership Perspectives, Rhema D. Fuller, C. Keith Harrison, S. Malia Lawrence, Jeff Eyanson, Danielle Mccardle
“I Will Change The World”: The Intersection Of Social Change And Male College Athletes’ Leadership Perspectives, Rhema D. Fuller, C. Keith Harrison, S. Malia Lawrence, Jeff Eyanson, Danielle Mccardle
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 845-856, 2017. Historically, men have been characterized as task-oriented leaders who are motivated by desires for autonomy, wealth, and power (17, 33). However, these “masculine” views of leadership might not accurately capture the leadership motivations of Millennial males as the views were developed in previous generations (4). Given the commitment of many Millennials towards socially responsible attitudes and behaviors (18, 25), we utilized a qualitative research design to examine the influence of social change on the leadership motivations of Millennial male intercollegiate athletes. In doing so, we found participants were motivated to lead in …
Are You Welcomed? A Racial And Ethnic Comparison Of Perceived Welcomeness In Sport Participation, Trevor Bopp, Robert Turick, Joshua D. Vadeboncoeur, Thomas J. Aicher
Are You Welcomed? A Racial And Ethnic Comparison Of Perceived Welcomeness In Sport Participation, Trevor Bopp, Robert Turick, Joshua D. Vadeboncoeur, Thomas J. Aicher
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 833-844, 2017. Sport has become racialized such that minority youth accrue limited health and academic benefits from participation, compared to their White counterparts. Understanding the welcomeness that minorities feel in sport, leisure and physical activities plays an important role in breaking down barriers to participation. Thus, the overall aim of this study is to further examine the determinants of sport participation, particularly as it relates to race, socialization and perceived welcomeness. College students (N = 451) scored their perceived level of welcomeness for Whites, African Americans and Hispanic/Latinos in 14 sports. Results reveal significant …
Does Time Heal All Wounds? A Case Study On Rival Perceptions Before And After Conference Realignment, Cody T. Havard, Daniel L. Wann, Timothy D. Ryan, Norman O'Neal
Does Time Heal All Wounds? A Case Study On Rival Perceptions Before And After Conference Realignment, Cody T. Havard, Daniel L. Wann, Timothy D. Ryan, Norman O'Neal
International Journal of Exercise Science
International Journal of Exercise Science 10(6): 823-832, 2017. The current longitudinal case study investigated how conference realignment and beginning new annual competitions impacted fan rival perceptions for fans of the Texas A&M Aggies, Missouri Tigers, and Texas Christian University Horned Frogs. In particular, fan rival perceptions before and after conference realignment were compared to determine if significant differences were present. Findings indicate that history plays an important role in rivalry as fans of teams sharing long-standing rivalries with schools in their previous conference (i.e., Texas A&M/Texas and Missouri/Kansas) did not differ in their rival perceptions before or after conference realignment. …
Understanding Why Undergraduate Students Declare And Continue To Study An Exercise Science-Related Major, Matthew Vaartstra, Vanessa Kercher, Amanda Start, Amber Brown, Mark Peterson, Ryan Mcgrath
Understanding Why Undergraduate Students Declare And Continue To Study An Exercise Science-Related Major, Matthew Vaartstra, Vanessa Kercher, Amanda Start, Amber Brown, Mark Peterson, Ryan Mcgrath
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 807-817, 2017. Understanding factors that contribute to a student’s selection of an exercise science-related major is important to student success, higher education and industry. This study sought to 1) better understand why undergraduate students study an exercise science-related major, 2) determine whether positive influences to study an exercise science-related major differ by academic classification, and 3) identify what student’s aspirations are after graduation. Department administrators from four-year colleges and universities offering an exercise science-related major in the Northwest Region of the United States (i.e., Idaho, Montana, Oregon, and Washington) were contacted. Cooperating department administrators …
Blood Pressure And Cardiovascular Health Has Relationship With Age In Adults During Adulthood, Allyson K. Getty, Jessica M. Lenzo, Tia R. Wisdo, Joyann E. Oakman, Christina M. Cromwell, Jessica A. Hill, Lauren N. Chavis, Deborah L. Feairheller, Phd
Blood Pressure And Cardiovascular Health Has Relationship With Age In Adults During Adulthood, Allyson K. Getty, Jessica M. Lenzo, Tia R. Wisdo, Joyann E. Oakman, Christina M. Cromwell, Jessica A. Hill, Lauren N. Chavis, Deborah L. Feairheller, Phd
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 798-806, 2017. Efforts to combat cardiovascular disease (CVD) have proven effective, especially in the population aged 55-74 years. However, less research has been conducted in younger populations to determine at what age CVD risk develops. The purpose of this study is to compare cardiovascular health markers in adults, specifically CVD risk between younger adults aged 18-22 and a slightly older group of adults in middle adulthood aged 23-54. Cardiovascular health measures were collected from a group of adults; 13 younger adults (20.2±0.9 yrs) and 10 adults in middle adulthood (42.9±10.1 yrs). All participants were …
A Prospective Study Comparing Distance-Based Vs. Time-Based Exercise Prescriptions Of Walking And Running In Previously Sedentary Overweight Adults, Cody E. Morris, John C. Garner Iii, Scott G. Owens, Melinda W. Valliant, Hunter Debusk, Mark Loftin
A Prospective Study Comparing Distance-Based Vs. Time-Based Exercise Prescriptions Of Walking And Running In Previously Sedentary Overweight Adults, Cody E. Morris, John C. Garner Iii, Scott G. Owens, Melinda W. Valliant, Hunter Debusk, Mark Loftin
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 782-798, 2017. Prior work has reported that the declines observed in body mass index (BMI) and circumference measurements in their cross-sectional data were twice as large when calculated from distance energy expenditure estimations compared to energy expenditure estimations based on time and intensity. The primary purpose of this study was to compare walking/running for distance to walking/running for time as part of an exercise intervention. This study followed a between-subjects, repeated measures design. Fifteen overweight, but otherwise healthy participants completed the study. The time-based group walked/ran for self-reported time while the distance-based group walked/ran …
Run Economy On A Normal And Lower Body Positive Pressure Treadmill, Corey Temple, Erik Lind, Deborah Van Langen, Larissa True, Saige Hupman, James F. Hokanson
Run Economy On A Normal And Lower Body Positive Pressure Treadmill, Corey Temple, Erik Lind, Deborah Van Langen, Larissa True, Saige Hupman, James F. Hokanson
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 774-781, 2017. Lower body positive pressure (LBPP) treadmill running is used more frequently in clinical and athletic settings. Accurate caloric expenditure is required for proper exercise prescription, especially for obese patients performing LBPP exercise. It is unclear if running on LBPP changes running economy (RE) in proportion to the changes in body weight. The purpose of the study was to measure the oxygen consumption (VO2) and running economy (RE) of treadmill running at normal body weight and on LBPP. Twenty-three active, non-obese participants (25.8±7.2 years; BMI = 25.52±3.29 kg∙m-2) completed …
Wrist-Worn Physical Activity Trackers Tend To Underestimate Steps During Walking, Tiffany Sears, Elmer Alvalos, Samantha Lawson, Ian Mcalister, L. Chris Eschbach, Jennifer Bunn
Wrist-Worn Physical Activity Trackers Tend To Underestimate Steps During Walking, Tiffany Sears, Elmer Alvalos, Samantha Lawson, Ian Mcalister, L. Chris Eschbach, Jennifer Bunn
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 764-773, 2017. The purpose of this study was to determine step-count accuracy of pedometers at different walking speeds. Ten recreationally active participants walked at five treadmill speeds (0.89, 1.11, 1.34, 1.56, and 1.79 m/s) for five minutes while wearing four wrist-worn activity trackers (Fitbit Charge HR®, Garmin Vivosmart HR®, Apple iWatch®, Jawbone UP3®) and the hip-worn Digi-Walker®. Each step was manually counted by a research technician (benchmark). Total step count at each speed was obtained for each device and compared to the benchmark using one-way MANOVA and Pearson correlation coefficient. For all five speeds, …
Examining The Impact Of A University-Driven Exercise Programming Event On End-Of-Semester Stress In Students, Tessa L. Koschel, John C. Young, James W. Navalta
Examining The Impact Of A University-Driven Exercise Programming Event On End-Of-Semester Stress In Students, Tessa L. Koschel, John C. Young, James W. Navalta
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 754-763, 2017. Stress levels in university students peak during the final exam period. An inverse association exists between Physical Activity (PA) and poor mental health. UNLV has created Fitness4Finals (F4F), an event novel in its approach to academic stress reduction by incorporating both physical activity and mental relaxation. To our knowledge, a university-driven programming event aimed at reducing physiological and psychological stress among students approaching final exams had never been studied. Therefore, the aims of this research were to 1) examine the influence of F4F on physiological stress and perceived psychological stress (PPS) and …
Changes In Gait And Texting Ability During Progressively Difficult Gait Tasks, Andrew J. Strubhar, Brody Rapp, Dillon Thomas
Changes In Gait And Texting Ability During Progressively Difficult Gait Tasks, Andrew J. Strubhar, Brody Rapp, Dillon Thomas
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 743-753, 2017. To investigate the effects of a cell phone texting task on an individual’s ability to perform three ambulation-based tasks, each with different and progressively more difficult demands. 36 participants (24 male/12 female, average age 23.4) performed: a Timed Up & Go (TUG), stair ambulation (STAIR), and tandem gait (TAN). Participants completed each gait-based task under four conditions: as a practice, while holding their cellular device (baseline), while texting a message, and while reading a message. Statistically significant differences were found within the following variables: 1) mean time to complete a gait task …
Recovery In Level 7-10 Usa Artistic Gymnastics, Stephen Buckner, Nicholas T. Bacon, Phillip Bishop
Recovery In Level 7-10 Usa Artistic Gymnastics, Stephen Buckner, Nicholas T. Bacon, Phillip Bishop
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 734-742, 2017. This study assessed physical performance in women’s artistic gymnastics following three variable recovery periods. Participants included fifteen female gymnasts (mean age = 13.5 ± 1.1) who had competed at USA Gymnastics (USAG) levels 7 – 10 within at least one year prior to the study. Each testing session consisted of a warm-up followed by four muscular endurance tests and one explosive maximal test. Assessments included pull-ups, leg lifts, handstand push-ups, vertical jump, and push-ups. After the performance assessments, the participants completed a typical practice session. The performance measures were reassessed at the …
Fluid Intake And Sweat Rate During Hot Yoga Participation, Stephanie Campbell, Robert C. Pritchett, Katie Cederburg, Tim Burnham, Kelly C. Pritchett
Fluid Intake And Sweat Rate During Hot Yoga Participation, Stephanie Campbell, Robert C. Pritchett, Katie Cederburg, Tim Burnham, Kelly C. Pritchett
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 721-733, 2017. Hot yoga participants are at risk for dehydration due to the nature of the environment they exercise in. Therefore, the purpose of this study was to investigate the pre-exercise hydration status, fluid balance, perception of sweat loss, and sweat sodium loss in 21 male and female hot yoga participants (mean age ± SD, 33.0 ± 10.5 yr; mass, 70.7 ± 11.0 kg). Data was recorded pre and post a one- hour hot yoga class (38.7 ± 2.6 °C, 36 ± 13% relative humidity). Pre-exercise urine specific gravity (USG), hydration status, body mass …
In-Season High-Intensity Interval Training Improves Conditioning In High School Soccer Players, Neal Howard, Stasinos Stavrianeas
In-Season High-Intensity Interval Training Improves Conditioning In High School Soccer Players, Neal Howard, Stasinos Stavrianeas
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 713-720, 2017. Soccer is characterized by high aerobic demands interspersed with frequent bursts of anaerobic activity. High-intensity interval training (HIIT) is considered a viable alternative to traditional endurance conditioning and offers the additional time-saving benefits of anaerobic training. We hypothesized that HIIT will compare favorably to traditional (aerobic-based) soccer conditioning over the course of a high school soccer season. Junior varsity soccer players were split into control (CON, n=16) and experimental (HIIT, n=16) groups for the 10-week study. The HIIT group performed 4-6 “all-out” sprints lasting 30s each, with 4.5 minute recovery, 3 times …
Effect Of Sedentary And Physical Activities On Children’S Food Choice, Allison M. Barry, Jesse L. Rhoades, John S. Fitzgerald, Dennis J. Caine, Dalonda L. Dalin, Tanis J. Walch
Effect Of Sedentary And Physical Activities On Children’S Food Choice, Allison M. Barry, Jesse L. Rhoades, John S. Fitzgerald, Dennis J. Caine, Dalonda L. Dalin, Tanis J. Walch
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 702-712, 2017. Childhood obesity is a growing public health concern. Research has shown sedentary behavior (SB) increases children’s unhealthy food consumption, while physical activity (PA) decreases caloric intake and increases energy expenditure. The purpose of this study was to examine child snack choice following a bout of active, SB, and a mix of SB and active (SB-A). Participants included a volunteer sample of children (n=24) ranging from 9-13 years of age. A within-subjects simple experimental design was used, and children participated in three conditions: active, SB, and SB-A. After each condition, the children were …
Pilot Study Of Endurance Runners And Brain Responses Associated With Delay Discounting, Laura E. Martin, Jason-Flor V. Sisante, David R. Wilson, Angela A. Moody, Cary R. Savage, Sandra A. Billinger
Pilot Study Of Endurance Runners And Brain Responses Associated With Delay Discounting, Laura E. Martin, Jason-Flor V. Sisante, David R. Wilson, Angela A. Moody, Cary R. Savage, Sandra A. Billinger
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 690-701, 2017. High levels of endurance training have been associated with potentially negative health outcomes and addictive-like symptoms such as exercise in the presence of injury and higher levels of impulsivity. This pilot study examined the relationships among self-report measures of addictive symptoms related to exercise and behavioral and neural measures of impulsivity in endurance runners. We hypothesized endurance runners would have increased preference for immediate rewards and greater activation of cognitive control regions when making decisions involving delayed rewards. Twenty endurance runners (at least 20 miles/week) were recruited to undergo measures of self-report …
Clinical Outcomes Of Different Tempos Of Music During Exercise In Cardiac Rehabilitation Patients, Jarad S. Miller, Donna J. Terbizan
Clinical Outcomes Of Different Tempos Of Music During Exercise In Cardiac Rehabilitation Patients, Jarad S. Miller, Donna J. Terbizan
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 681-689, 2017. This study examined the effects of stimulating and sedative music on ratings of perceived exertion (RPE), heart rate (HR), blood pressure (BP), and feeling status during exercise in cardiac rehabilitation (CR) patients. Twenty-two male and female older adults age 64 ± 8.0 y currently enrolled in phase III CR completed the study. Repeated measures crossover designs guided data collection. The manipulated independent variable was music condition (sedative, stimulating, and non-music control). The dependent variables were RPE, BP, HR, and feeling status with each represented by four repeated measures ANOVAs over time via …
Irisin And Fibronectin Type Iii Domain-Containing 5 Responses To Exercise In Different Environmental Conditions, Matthew Bubak, Matthew W.S. Heesch, Robert J. Shute, Nicholas E. Dinan, Terence L. Laursen, D. Taylor La Salle, Dustin R. Slivka
Irisin And Fibronectin Type Iii Domain-Containing 5 Responses To Exercise In Different Environmental Conditions, Matthew Bubak, Matthew W.S. Heesch, Robert J. Shute, Nicholas E. Dinan, Terence L. Laursen, D. Taylor La Salle, Dustin R. Slivka
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 666-680, 2017. Fibronectin type III domain-containing 5 (FNDC5) is a skeletal muscle membrane-bound precursor to the myokine irisin. Irisin is involved in stimulating adipose tissue to become more metabolically active in order to produce heat. The purpose of this study was to determine the effects of exercise in a hot (33 °C), cold (7 °C), and room temperature (RT, 20 °C) environment on the skeletal muscle gene expression of FNDC5 and the plasma concentrations of irisin. Twelve recreationally trained males completed three separate, 1 h cycling bouts at 60% of Wmax in a …
The Effect Of Psychomotor Performance, Cerebral And Arterial Blood Saturation Between African-American And Caucasian Males Before, During And After Normobaric Hypoxic Exercise, Matthew R. Feeback, Yongsuk Seo, Matthew Dancy, Ellen L. Glickman
The Effect Of Psychomotor Performance, Cerebral And Arterial Blood Saturation Between African-American And Caucasian Males Before, During And After Normobaric Hypoxic Exercise, Matthew R. Feeback, Yongsuk Seo, Matthew Dancy, Ellen L. Glickman
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 655-665, 2017. To further elucidate physiological and cognitive performance differences between African-American (AA) and Caucasian individuals (CAU) before, during or after hypoxic and normoxic exercise. Twelve college aged (18-25) apparently healthy African-American (six volunteers) and Caucasian (six subjects) males took part in two trials consisting of normobaric normoxia and normobaric hypoxia (12% oxygen). Each subject cycled at 50% of their altitude adjusted VO2max (-26% of normoxia VO2max) for one hour after a two-hour baseline. Subjects were monitored for cerebral and arterial O2 saturation, as well as the Trail Making Test …
Blood Flow Restriction Training: Implementation Into Clinical Practice, William R. Vanwye, Alyssa Weatherholt, Alan E. Mikesky
Blood Flow Restriction Training: Implementation Into Clinical Practice, William R. Vanwye, Alyssa Weatherholt, Alan E. Mikesky
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 649-654, 2017. To improve muscular strength and hypertrophy the American College of Sports Medicine recommends moderate to high load resistance training. However, use of moderate to high loads are often not feasible in clinical populations. Therefore, the emergence of low load (LL) blood flow restriction (BFR) training as a rehabilitation tool for clinical populations is becoming popular. Although the majority of research on LL-BFR training has examined healthy populations, clinical applications are emerging. Overall, it appears BFR training is a safe and effective tool for rehabilitation. However, additional research is needed prior to widespread …
Comparison Of Ventilatory Measures And 20 Km Time Trial Performance, Willard Peveler
Comparison Of Ventilatory Measures And 20 Km Time Trial Performance, Willard Peveler
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 640-648, 2017. Performance threshold measures are used to predict cycling performance. Previous research has focused on long time trials (≥ 40 km) using power at ventilatory threshold and respiratory threshold to estimate time trial performance. As intensity greatly differs during shorter time trails applying findings from longer time trials may not be appropriate. The use of heart rate measures to determine 20 km time trial performance has yet to be examined. The purpose of this study was to determine the effectiveness of heart rate measures at ventilatory threshold (VE/VO2 Plotted and VT determined …
Changes In Running Economy, Respiratory Exchange Ratio And Vo2max In Runners Following A 10-Day Altitude Training Camp, Sebastian R. Diebel, Ian Newhouse, David S. Thompson, Vineet B.K. Johnson
Changes In Running Economy, Respiratory Exchange Ratio And Vo2max In Runners Following A 10-Day Altitude Training Camp, Sebastian R. Diebel, Ian Newhouse, David S. Thompson, Vineet B.K. Johnson
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 629-639, 2017. Running economy (RE) and VO2max are important predictors of endurance performance for elite and semi-elite endurance athletes, with RE being an appropriate predictor in a homogenous running population. Altitude training has been observed to change RE (mL.kg-1.min-1), and VO2max due to alterations resulting from acclimatization. This study tracked changes in RE and VO2max before and after a 10-day altitude training camp at 1828 meters. VO2max, RE expressed calorically, and respiratory exchange ratio (RER), were measured below anaerobic threshold (AT) …
King-Devick Performance Following Moderate And High Exercise Intensity Bouts., Billymo Rist, Adrian Cohen, Alan J. Pearce
King-Devick Performance Following Moderate And High Exercise Intensity Bouts., Billymo Rist, Adrian Cohen, Alan J. Pearce
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 619-628, 2017. The King-Devick (K-D) test is a concise, noninvasive assessment of oculomotor and cognitive function that has been shown to detect sub-optimal brain performance following sports head trauma. Used in a number of sports as a sideline concussion assessment tool, the K-D test can be administered by non-medical personnel. However, the issue regarding the effect of exercise on K-D performance has not been fully explored. Using a randomized crossover design, this study aimed to compare the effect of two intensities of exercise on K-D performance. Twenty males (21.2 ± 1.9 years) completed the …
Mood And Performance Anxiety In High School Basketball Players: A Pilot Study, Steffen J. Hoover, Rachel K. Winter, Holly Mccutchan, Christina C. Beaudoin, Lawrence W. Judge, Lani M. Jones, Brianna Leitzlar, Donald L. Hoover
Mood And Performance Anxiety In High School Basketball Players: A Pilot Study, Steffen J. Hoover, Rachel K. Winter, Holly Mccutchan, Christina C. Beaudoin, Lawrence W. Judge, Lani M. Jones, Brianna Leitzlar, Donald L. Hoover
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 604-618, 2017. Participation in competitive sport may impact psychological measures, such as mood and performance anxiety, which in turn may impact enjoyment, adherence, continued participation, and so on. This study assessed the feasibility – in terms of process, resources, management, and potential scientific value– of measuring the effect of varying competitive challenges upon the mood and performance anxiety measures of high school athletes. The participants (n=12) consisted of the boys’ varsity basketball team at a high school in a rural Midwestern community. Participants completed the Profile of Mood States (POMS) to assess mood and …
Mathematical Modeling And Expression Of Heart Rate Deflection Point Using Heart Rate And Oxygen Consumption, Kayla M. Baker, David H. Fukuda Ph.D., David Church, Michael B. La Monica, Kyle S. Beyer, Jay R. Hoffman, Jeffrey R. Stout Ph.D.
Mathematical Modeling And Expression Of Heart Rate Deflection Point Using Heart Rate And Oxygen Consumption, Kayla M. Baker, David H. Fukuda Ph.D., David Church, Michael B. La Monica, Kyle S. Beyer, Jay R. Hoffman, Jeffrey R. Stout Ph.D.
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 592-603, 2017. Heart rate deflection point (HRDP) can be determined through different mathematical-modeling procedures, such as bi-segmental linear regression (2SEG) or maximal distance model (Dmax). The purpose was to compare heart rate (HR) and oxygen consumption (VO2) at HRDP when using 2SEG and Dmax, and to examine their relationships with respiratory compensation point (RCP) and running performance. Nineteen participants completed a graded exercise test (GXT), to determine HRDP and RCP, and a 5km treadmill time trial (5Ktime). No differences were found in HR or VO2 when comparing HRDP2SEG …
The Effects Of Work-To-Rest Ratios On Torque, Electromyographic, And Mechanomyographic Responses To Fatiguing Workbouts, Ethan C. Hill, Terry J. Housh, Cory M. Smith, Kristen C. Cochrane, Nathaniel D.M. Jenkins, Richard J. Schmidt, Glen O. Johnson
The Effects Of Work-To-Rest Ratios On Torque, Electromyographic, And Mechanomyographic Responses To Fatiguing Workbouts, Ethan C. Hill, Terry J. Housh, Cory M. Smith, Kristen C. Cochrane, Nathaniel D.M. Jenkins, Richard J. Schmidt, Glen O. Johnson
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 580-591, 2017. The purpose of the present study was to examine the effects of 2 different work-to-rest ratios, but the same mean load, cycle time, and total duration of the exercise bout, on maximal voluntary isometric contraction torque and neuromuscular responses to fatiguing, intermittent, submaximal, isometric, forearm flexion muscle actions. Ten men performed 2 fatiguing protocols with different work-to-rest ratios (4 s contraction, 4 s rest vs. 4 s contraction, alternating 6 and 2 s rest) that consisted of 50 intermittent, submaximal (65% of maximal voluntary isometric contraction), isometric, forearm flexion muscle actions. Electromyographic …
Physiological Characteristics Of Projected Starters And Non-Starters In The Field Positions From A Division I Women’S Soccer Team, Fabrice G. Risso, Farzad Jalilvand, Ashley J. Orjalo, Matthew R. Moreno, Deshaun L. Davis, Samantha A. Birmingham-Babauta, John J. Stokes, Alyssa A. Stage, Tricia M. Liu, Dominic V. Giuliano, Adrina Lazar, Robert G. Lockie
Physiological Characteristics Of Projected Starters And Non-Starters In The Field Positions From A Division I Women’S Soccer Team, Fabrice G. Risso, Farzad Jalilvand, Ashley J. Orjalo, Matthew R. Moreno, Deshaun L. Davis, Samantha A. Birmingham-Babauta, John J. Stokes, Alyssa A. Stage, Tricia M. Liu, Dominic V. Giuliano, Adrina Lazar, Robert G. Lockie
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 568-579, 2017. NCAA soccer features different substitution rules compared to FIFA-sanctioned matches, with a greater availability of players who can enter the game. This could influence the physiological characteristics of the field position starters (ST) and non-starters (NST) within a collegiate women’s team, which has not been previously analyzed. Thus, 22 field players from the same Division I women’s soccer squad completed: vertical and standing broad jumps; 30-meter (m) sprint (0-5, 0-10, 0-30 m intervals); pro-agility and 60-yard shuttle; and the Yo-Yo Intermittent Recovery Test Level 1. Players were defined into ST (n=10) and …
Effects Of 12 Weeks Of Physical Training On Body Composition And Physical Fitness In Military Recruits, Leandra C B Campos, Fabio A D Campos, Thiago A R Bezerra, Idico L. Pellegrinotti
Effects Of 12 Weeks Of Physical Training On Body Composition And Physical Fitness In Military Recruits, Leandra C B Campos, Fabio A D Campos, Thiago A R Bezerra, Idico L. Pellegrinotti
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 560-567, 2017. The aim of this study was to analyze the morphological and functional changes in military recruits after twelve weeks of physical training. The sample consisted of 130 volunteer recruits aged 18-19 years. Anthropometric variables were assessed (body weight, height, body mass index, arm, waist, and hip circumference, waist/hip ratio, skinfold thickness of the triceps, suprailiac, and abdomen, and body fat percentage) and the sit-up test (1 minute), push-up test, and 12-minute running test. The physical training protocol involved running workouts, strength, agility, and flexibility. Descriptive statistical procedures were performed with mean, standard …
The Effect Of Betaine On Nitrate And Cardiovascular Response To Exercise, J. Luke Pryor, Stephen A. Wolf, Gary Sforzo, Tom Swensen
The Effect Of Betaine On Nitrate And Cardiovascular Response To Exercise, J. Luke Pryor, Stephen A. Wolf, Gary Sforzo, Tom Swensen
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 550-559, 2017. Betaine (BT) supplementation improves selected markers of physical performance, however, the mechanism(s) by which this change occurs remains largely unknown. Some speculate that BT may increase circulating nitrate concentrations, improving physical performance by augmentation of endothelial nitric oxide production. The purpose of this study was to investigate the effects of acute BT supplementation and exercise on plasma nitrate levels and related cardiovascular response (CVR). Placebo and BT trials were administered in a cross-over, randomized, double-blind, and counterbalanced fashion. Ten healthy college-aged volunteers consumed either a 250 ml placebo (carbohydrate-electrolyte beverage, CHO) or …
Correlation Between The Functional Movement Screen And Hip Mobility In Ncaa Division Ii Athletes, Matt T. Jenkins, Robert Gustitus, Mike Iosia, Taz Kicklighter, Yuichi Sasaki
Correlation Between The Functional Movement Screen And Hip Mobility In Ncaa Division Ii Athletes, Matt T. Jenkins, Robert Gustitus, Mike Iosia, Taz Kicklighter, Yuichi Sasaki
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 541-549, 2017. The Functional Movement Screen (FMS) is a series of seven exercises designed to assess athletes prior to competitive training to determine dysfunctional movement patterns. The exercises include the deep squat (DS), hurdle step (HS), inline lunge (IL), shoulder mobility (SM), active straight leg raise (ASL), pushup (PU), and rotary stability (RS), all of which comprise the composite score (FMS CS). The purpose of this study was to determine correlations between the FMS screens and hip mobility. The specific hip range-of-motion exercises used were bilateral internal/external rotation (IRR, IRL ERL, ERR), and flexion/extension …
Cortisol And Alpha-Amylase Changes During An Ultra-Running Event, Whitney P. Deneen, Alexis Jones
Cortisol And Alpha-Amylase Changes During An Ultra-Running Event, Whitney P. Deneen, Alexis Jones
International Journal of Exercise Science
International Journal of Exercise Science 10(4): 531-540, 2017. Elevated stress hormone concentrations can positively affect an athlete’s overall performance during a competition, and in many cases, are necessary to be able to perform exercise. During extreme exercise, the body’s ability to utilize energy efficiently can affect an athlete’s performance. Elevated hormonal concentrations can have many benefits in regards to an athlete’s overall performance during a competition. The purpose of this study was to examine the effects of long distance running, such as seen during an ultra-running event (distances beyond 26.2 miles), on the activity of the hypothalamic-pituitary-adrenocortical (HPA) axis production …