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Articles 1 - 30 of 66
Full-Text Articles in Life Sciences
90 Minutes Of Moderate-Intensity Exercise Does Not Attenuate Postprandial Triglycerides In Older Adults, Nathaniel G. Bodell, Trevor Gillum
90 Minutes Of Moderate-Intensity Exercise Does Not Attenuate Postprandial Triglycerides In Older Adults, Nathaniel G. Bodell, Trevor Gillum
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 677-684, 2016. To determine whether 90 minutes of moderate-intensity exercise, prior to a high fat meal, attenuates postprandial triglycerides (PPT) in older adults. Eight sedentary older adult volunteers (mean ± SD age = 58 ± 8 years, BMI 26.5 ± 4.2); completed two trials consisting of exercise and a no-exercise control. Exercise trials involved 90 minutes of moderate-intensity exercise 60% heart rate reserve (HHR). Following exercise, an overnight fast of 12-16 hours was performed. Participants were given a high fat meal that consisted of 146 grams of CHO, and 92 grams of fat and …
Effects Of A Pre-Workout Energy Drink Supplement On Upper Body Muscular Endurance Performance, Mitchel A. Magrini, Ryan J. Colquhoun, J Jay Dawes, Doug B. Smith
Effects Of A Pre-Workout Energy Drink Supplement On Upper Body Muscular Endurance Performance, Mitchel A. Magrini, Ryan J. Colquhoun, J Jay Dawes, Doug B. Smith
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 667-676, 2016. The use of pre-workout beverages is becoming an increasingly common method of improving performance during exercise in athletic and recreationally active populations. Therefore, the purpose of this study was to investigate the effects of a commercially available energy drink on exercise performance. Thirty-one healthy males (n=23) and females (n=8) participated in this study and were separated into two groups: supplement (SU; n=16) or placebo (PL; n=15). Subjects visited the laboratory on 2 occasions separated by no more than 7 days. The first visit consisted of completing a push up to fatigue protocol …
The Effects Of Eccentric, Velocity-Based Training On Strength And Power In Collegiate Athletes, Samantha M. Dolezal, Tamra L. Llewellyn, Derek L. Frese
The Effects Of Eccentric, Velocity-Based Training On Strength And Power In Collegiate Athletes, Samantha M. Dolezal, Tamra L. Llewellyn, Derek L. Frese
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 657-666, 2016. The purpose of this study was to determine if combining velocity-based training with eccentric focus (VEB) and velocity-based training (VBT) results in power and strength gains. Nineteen men and women collegiate track and field athletes participated in this study. The subjects completed a 12-week intervention with either a VEB program or a VBT program. To determine the effectiveness of each program, the subjects completed four exercise tests before and after the training period: vertical jump, medicine ball put test, 1RM projected bench press and 1RM projected squat. There were no significant differences …
Quantifying Inter-Segmental Coordination During The Instep Soccer Kicks, Yumeng Li, Marion Alexander, Cheryl Glazebrook, Jeff Leiter
Quantifying Inter-Segmental Coordination During The Instep Soccer Kicks, Yumeng Li, Marion Alexander, Cheryl Glazebrook, Jeff Leiter
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 646-656, 2016. In order to generate a high ball speed in soccer, the inter-segmental coordination of the kicking leg is critical. The purpose of this study was to quantify the coordination between the thigh and shank movement in the sagittal plane during instep kicks. Eleven female soccer players were video recorded using a high-speed (80 Hz) video camera during penalty kicks. Hip, knee and ankle joint centers of the right leg were digitized, and the movement was analyzed using Dartfish TeamPro (6.0). The thigh and shank segment angles were generated, and the coordination was …
Inter-Correlations Between Laboratory Inter-Correlations Between Laboratory And Field-Based Tests Of Muscle Contractile Power, Mitchell J. Cameron, Robert Robergs
Inter-Correlations Between Laboratory Inter-Correlations Between Laboratory And Field-Based Tests Of Muscle Contractile Power, Mitchell J. Cameron, Robert Robergs
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 635-645, 2016. Muscle contractile properties have previously been distinguished by fiber typing muscle samples obtained from needle biopsy; however due to conflicting evidence regarding sampling bias and the related need for multiple biopsies, it is not certain if these results are a reliable reflection of whole muscle fiber type expression. Inter-correlations between laboratory and field-based measures of muscle contractile power were used to determine which assessments best discriminate between participants of varying sprint performance, and indirectly reveal potential for power vs. endurance exercise performance. Healthy active male (n=32) and female (n=17) participants were recruited …
The Relationship Between Aerobic And Anaerobic Performance In Recreational Runners, Zachary M. Gillen, Frank B. Wyatt, Jason B. Winchester, Dalton A. Smith, Vidhi Ghetia
The Relationship Between Aerobic And Anaerobic Performance In Recreational Runners, Zachary M. Gillen, Frank B. Wyatt, Jason B. Winchester, Dalton A. Smith, Vidhi Ghetia
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 625-634, 2016. Research has indicated that combined aerobic and anaerobic training (concurrent training) may improve aerobic performance greater than aerobic training alone. The purpose of this investigation was to establish any associations between aerobic and anaerobic performance. Eleven participants (n = 11, age = 34.1 ± 13 years, VO2max = 58.4 ± 7.8) volunteered for this study. Participants were asked for endurance training experience (4.7 ± 3.7 years) and resistance training experience (4.1 ± 4.6 years). To meet training status, participants were to have a VO2max in the 80th percentile as …
Relationships Between Motor Coordination And Academic Achievement In Middle School Children, Daniel V. Chagas, Gustavo Leporace, Luiz Alberto Batista
Relationships Between Motor Coordination And Academic Achievement In Middle School Children, Daniel V. Chagas, Gustavo Leporace, Luiz Alberto Batista
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 616-624, 2016. Although it is recognized that children with a marked impairment in the development of motor coordination may show difficulty in gaining academic achievement, research examining the relationship between gross motor coordination and academic achievement in children without intellectual disabilities is limited. This study aimed to examine whether gross motor coordination is associated with academic achievement among children. Middle school children (n=122) were recruited. Writing, reading, and mathematics performance were used to attribute academic achievement. Gross motor coordination was assessed using the Körperkoordinationstest für Kinder test. Pearson and partial correlations were used to …
Effects Of Acute Vaporized Nicotine In Non-Tobacco Users At Rest And During Exercise, Donovan L. Fogt, Michael A. Levi, Caroline A. Rickards, Steven P. Stelly, William H. Cooke
Effects Of Acute Vaporized Nicotine In Non-Tobacco Users At Rest And During Exercise, Donovan L. Fogt, Michael A. Levi, Caroline A. Rickards, Steven P. Stelly, William H. Cooke
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 607-615, 2016. Smokers, and even non-smokers, may utilize vaporized nicotine delivered by electronic cigarette (EC) due to the perception that EC are “healthier” than traditional tobacco cigarettes. The effects of vaporized nicotine delivered by EC on resting blood pressure (BP) and resting metabolic rate (RMR), or BP and aerobic power during exercise have not been studied. This investigation tested the effects of acute vaporized nicotine inhalation by EC on resting BP and RMR and cycle exercise BP, metabolic responses, and aerobic power in young, normotensive non-smokers. Using a double-blind design, 20 subjects (10 female) …
Spatial Awareness Is Related To Moderate Intensity Running During A Collegiate Rugby Match, Kyle S. Beyer, David H. Fukuda Ph.D., Amelia M. Miramonti, Mattan W. Hoffman, Ran Wang, Michael B. La Monica, Josh J. Riffe, Satoru Tanigawa Ph.D., Jeffrey R. Stout Ph.D., Jay R. Hoffman Ph.D.
Spatial Awareness Is Related To Moderate Intensity Running During A Collegiate Rugby Match, Kyle S. Beyer, David H. Fukuda Ph.D., Amelia M. Miramonti, Mattan W. Hoffman, Ran Wang, Michael B. La Monica, Josh J. Riffe, Satoru Tanigawa Ph.D., Jeffrey R. Stout Ph.D., Jay R. Hoffman Ph.D.
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 599-606, 2016. The purpose of the present study was to evaluate the relationship between spatial awareness, agility, and distance covered in global positioning system (GPS) derived velocity zone classifications during a collegiate rugby match. Twelve American collegiate rugby union players (mean±SD; age: 21.2±1.4 y; weight: 85.0±16.0 kg; 7 forwards & 5 backs) on a single team volunteered to participate in this investigation. The distances travelled at low (walking/jogging; <2.7m/s), moderate (cruising/striding; 2.7-5.0 m/s), and high intensities (running/sprinting; >5.0 m/s) were measured for each player using GPS sensors and normalized according to playing time during an official USA Rugby match. Spatial awareness was measured …
Adolescents And Self-Reported Physical Activity: An Evaluation Of The Modified Godin Leisure-Time Exercise Questionnaire, Jacqueline Zelener, Margaret Schneider
Adolescents And Self-Reported Physical Activity: An Evaluation Of The Modified Godin Leisure-Time Exercise Questionnaire, Jacqueline Zelener, Margaret Schneider
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 587-598, 2016. The Godin Leisure-Time Exercise Questionnaire assesses self-reported physical activity (PA) among adults, and was later modified for children. However, the modified version (Godin-Child Questionnaire) has not been validated among adolescents. This study evaluates the construct validity and test-retest reliability of the Godin-Child Questionnaire among adolescents. The study participants, sixth graders (age M= 11.06 ± 0.436; 48% males, 48% Latino), were assessed at 2 time points (fall and spring: N= 139). First, the study determined whether adolescents accurately reported exercise intensity based on adolescents' ratings of perceived exertion (RPE) during moderate- and hard-intensity …
Natural Training Hydration Status, Sweat Rates, And Perception Of Sweat Losses During Crossfit Training, Christina C. Cronin, Eric O'Neal, Jeffrey Simpson, Brandon L. Miller, Matt Green, Jean A. Helm Allen, Shelby Boman
Natural Training Hydration Status, Sweat Rates, And Perception Of Sweat Losses During Crossfit Training, Christina C. Cronin, Eric O'Neal, Jeffrey Simpson, Brandon L. Miller, Matt Green, Jean A. Helm Allen, Shelby Boman
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 576-586, 2016. This study assessed 30 male and 20 female well-trained CrossFit (XF) athletes’ natural hydration statuses, fluid intake, and absolute and estimated sweat losses during training sessions lasting 30-47 min. Participants provided a pre-workout urine sample for assessment of hydration by urine specific gravity (USG). Nude pre- and post-workout body mass and fluid intakes were measured to determine sweat losses. To evaluate perception of total sweat loss, participants were asked to estimate their total sweat loss to compare against actual sweat loss. Mean sweat losses did not exceed 1% body mass for men …
Influence Of Baseball Catcher Mask Design, Impact Location And Ball Trajectory On Head Acceleration, Jordan Siu, Alex Okonek, Philip K. Schot
Influence Of Baseball Catcher Mask Design, Impact Location And Ball Trajectory On Head Acceleration, Jordan Siu, Alex Okonek, Philip K. Schot
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 567-575, 2016. The general aim was to contrast accelerations caused by baseball impacts for different catcher mask designs. Study1 focused on impact locations for a perpendicular ball trajectory. Study2 examined perpendicular and oblique trajectories striking a single mask location. A 5.9 kg head model instrumented with a 3-d accelerometer recording at 512 Hz was mounted upright with springs in a shallow ball joint. A pitching machine fired a standard baseball at ~28 m/s for all tests. Transverse plane resultant peak acceleration was gathered from 5 trials in each experimental combination. In Study1, effects of …
The Polycystic Ovary Syndrome Present Higher Sympathetic Cardiac Autonomic Modulation That Is Not Altered By Strength Training, Victor Barbosa Ribeiro, Gislaine Satyko Kogure, Rosana Maria Reis, Ada Clarice Gastaldi, João Eduardo Araújo, José Henrique Mazon, Audrey Borghi, Hugo Celso Dutra Souza
The Polycystic Ovary Syndrome Present Higher Sympathetic Cardiac Autonomic Modulation That Is Not Altered By Strength Training, Victor Barbosa Ribeiro, Gislaine Satyko Kogure, Rosana Maria Reis, Ada Clarice Gastaldi, João Eduardo Araújo, José Henrique Mazon, Audrey Borghi, Hugo Celso Dutra Souza
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 554-566, 2016. Polycystic ovary syndrome (PCOS) may present important comorbidities, such as cardiovascular and metabolic diseases, which are often preceded by changes in cardiac autonomic modulation. Different types of physical exercises are frequently indicated for the prevention and treatment of PCOS. However, little is known about the effects of strength training on the metabolic, hormonal, and cardiac autonomic parameters. Therefore, our aim was to investigate the effects of strength training on the autonomic modulation of heart rate variability (HRV) and its relation to endocrine-metabolic parameters in women with PCOS. Fifty-three women were …
Monitoring Interval-Training Responses For Swimming Using The 3-Min All-Out Exercise Test., Samuel P. Courtright, Jade L. Williams, Ida E. Clark, Robert W. Pettitt, Nathan D. Dicks
Monitoring Interval-Training Responses For Swimming Using The 3-Min All-Out Exercise Test., Samuel P. Courtright, Jade L. Williams, Ida E. Clark, Robert W. Pettitt, Nathan D. Dicks
International Journal of Exercise Science
International Journal of Exercise Science 9(5): 545-553, 2016. The purpose of this study was to determine whether the 3-min all-out exercise test (3MT) could be applied to create an off-season high intensity, interval training (HIIT) program to improve performance, specifically critical velocity (CV), in the sport of swimming. We tested a group of competitive female swimmers (age = 19 ± 1 yrs, height = 169 ± 7 cm, body mass = 69 ± 9 kg) to determine their swimming CV and finite energy capacity >CV (D’), and created a four week (2 d∙wk-1) personalized …
Effect Of Music Tempo On Attentional Focus And Perceived Exertion During Selected Self-Paced Walking, Aldo Coelho Silva, Sandro Dos Santos Ferreira, Sergio Gregorio Da Silva
Effect Of Music Tempo On Attentional Focus And Perceived Exertion During Selected Self-Paced Walking, Aldo Coelho Silva, Sandro Dos Santos Ferreira, Sergio Gregorio Da Silva
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 536-544, 2016. This study investigated the influence of music on the rating of perceived exertion (RPE) and attentional focus during walking at a self-selected pace. Fifteen overweight and obese women volunteered to participate in the study. They underwent four sessions: the first for incremental maximal test and anthropometric measurement followed by three experimental sessions. After the first session, they were exposed to three 30-minute walking sessions at a self-selected pace in a counterbalanced order: fast-tempo music (FT), medium-tempo music (MT) and no-music control (NM). Borg’s RPE Scale and an Attentional Focus Questionnaire were used …
Effect Of And Acute Bout Of Kettlebell Exercise On Glucose Tolerance In Sedentary Men: A Preliminary Study, Samantha L. Greenwald, Edward Seger, David Nichols, Andrew Ray, Todd C. Rideout, Luc E. Gosselin
Effect Of And Acute Bout Of Kettlebell Exercise On Glucose Tolerance In Sedentary Men: A Preliminary Study, Samantha L. Greenwald, Edward Seger, David Nichols, Andrew Ray, Todd C. Rideout, Luc E. Gosselin
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 524-535, 2016. Impaired glucose tolerance can have significant health consequences. The purposes of this preliminary study were to examine whether a single session of kettlebell exercise improves acute post-exercise glucose tolerance in sedentary individuals, and whether it was as effective as high-intensity interval running. Six sedentary male subjects underwent a two-hour oral glucose tolerance test following three different conditions: 1) control (no exercise); 2) kettlebell exercise (2 sets of 7 exercises, 15 repetitions per exercise with 30 seconds rest between each exercise); or 3) high-intensity interval running (10 one-minute intervals at a workload corresponding …
Sex Differences In Time Perception During Self-Paced Running, Nicholas J. Hanson, Janet Buckworth
Sex Differences In Time Perception During Self-Paced Running, Nicholas J. Hanson, Janet Buckworth
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 514-523, 2016. Time perception during exercise may be affected by chosen intensity, and may also affect enjoyment of exercise and subsequent long-term adherence. However, little is known about how individuals perceive the passage of time during exercise, or if factors such as sex are influential. The purpose of this study was to determine if there are sex related differences in perception of time during a bout of exercise in experienced runners. Twenty-two recreational runners (11 men, 11 women) participated in a bout of treadmill running where they were allowed to select their intensity. Sixty …
Acute Effects Of Walking With Nordic Poles In Persons With Mild To Moderate Low-Back Pain, Landon P. Revord, Karen V. Lomond, Peter V. Loubert, Roger L. Hammer
Acute Effects Of Walking With Nordic Poles In Persons With Mild To Moderate Low-Back Pain, Landon P. Revord, Karen V. Lomond, Peter V. Loubert, Roger L. Hammer
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 507-513, 2016. Regular walking with or without Nordic poles is effective over time at reducing discomfort in individuals with chronic low back pain (LBP). Nordic pole use increases balance and stability, distributes weight through the arms and torso, and decreases loading of the spine and lower limbs. The purpose of this study was to determine if Nordic poles would reduce perceived acute discomfort while self-paced walking in individuals with LBP. We also examined whether walking with or without poles increased heart rate (HR) and ratings of perceived exertion (RPE) or speed of movement. Subjects …
How Feedback And Goal-Setting Impact Children’S Recess Physical Activity, Ryann Koufoudakis, Heather Erwin, Aaron Beighle, Michelle L. Thornton
How Feedback And Goal-Setting Impact Children’S Recess Physical Activity, Ryann Koufoudakis, Heather Erwin, Aaron Beighle, Michelle L. Thornton
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 497-506, 2016. In recent years, schools desire to promote physical activity (PA) for their students but are restricted due to resources being expended in other areas of their curriculum, including standardized testing preparation. Recess/lunch periods have potential to contribute important amounts of PA to youth’s overall levels. Interventions to maximize PA during recess are warranted. The purpose of this study was to demonstrate the impact of feedback and goal-setting on students’ PA during recess. A sample of 136 (67 females, 69 males) 4th and 5th grade students in the Southeast United States …
The Acute Effect Of Walking On Ultrasound Measurements From The Achilles Insight Ultrasonometer In College-Aged Individuals, Kristin J. Heumann, Jacob Cimolino, Jeremy R. Hawkins, Robert W. Pettitt, Steven Ross Murray
The Acute Effect Of Walking On Ultrasound Measurements From The Achilles Insight Ultrasonometer In College-Aged Individuals, Kristin J. Heumann, Jacob Cimolino, Jeremy R. Hawkins, Robert W. Pettitt, Steven Ross Murray
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 491-496, 2016. The Achilles InSight bone ultrasonometer is a portable ultrasound device for quantitatively measuring bone composition both safely and inexpensively via the calcaneus. The effect of acute, brisk walking as a possible source of error on the reliability of quantitative ultrasound (QUS) measurements was investigated. Forty-seven participants (17 women, 30 men; age M ± SD = 20.44 ± 1.16) had their calcaneus measured with the Achilles InSight both before and after a 15-min bout of walking at (5.63 km·h-1 (3.5 mph). The Achilles InSight was deemed reliable via a test-and-retest protocol (ICC α …
Carotid Artery Imt, Blood Pressure, And Cardiovascular Risk Factors In Males And Females, Christina M. Cromwell, Kristin R. Aichele, Joyann E. Oakman, Michael P. Neal, Jessica M. Lenzo, Avery N. Perez, Naomi L. Bye, Erica L. Santaniello, Jessica A. Hill, Rachel C. Evans, Karla A. Thiele, Lauren N. Chavis, Allyson K. Getty, Tia R. Wisdo, Deborah L. Feairheller, Phd
Carotid Artery Imt, Blood Pressure, And Cardiovascular Risk Factors In Males And Females, Christina M. Cromwell, Kristin R. Aichele, Joyann E. Oakman, Michael P. Neal, Jessica M. Lenzo, Avery N. Perez, Naomi L. Bye, Erica L. Santaniello, Jessica A. Hill, Rachel C. Evans, Karla A. Thiele, Lauren N. Chavis, Allyson K. Getty, Tia R. Wisdo, Deborah L. Feairheller, Phd
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 482-490, 2016. Previous studies have investigated carotid artery intima-media thickness (IMT) and blood pressure and found a direct correlation between the two. It is known that adult females have better cardiovascular health than males until a certain stage of life, yet limited research has examined gender differences in vascular function. Thus, the purpose of this study was to investigate vascular structure and function, blood pressure, and blood glucose/cholesterol levels in relation to gender differences in young healthy adults. On three separate days, 44 adults (26.30 ±11.9yrs; 24M, 20F) completed a carotid IMT ultrasound, a …
Effects Of A Nighttime Multi-Ingredient Supplement On Recovery From A Damaging Exercise Protocol, Parker Hyde, Ciaran Fairman, Nicholas A. Coker, Keagan Kiely, Mary Beth Yarbrough, Charles Purser, Kristina L. Kendall
Effects Of A Nighttime Multi-Ingredient Supplement On Recovery From A Damaging Exercise Protocol, Parker Hyde, Ciaran Fairman, Nicholas A. Coker, Keagan Kiely, Mary Beth Yarbrough, Charles Purser, Kristina L. Kendall
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 471-481, 2016. The purpose of this study was to determine the efficacy of a nighttime multi-ingredient supplement on noninvasive markers of recovery in resistance trained and untrained individuals. Forty-nine participants, both trained (n=25) and untrained (n=24) completed the randomized, double blind, placebo-controlled study. Trained participants were randomly divided into supplement (n=12) and placebo (n=13) groups. Untrained participants were randomly divided into supplement (n=14) and placebo (n=10) groups. Two, 2 (supplement group) x 2 (training status) x 5 (time points) repeated measures analysis of variance (ANOVA) were utilized to determine if an interaction for supplement …
The Effect Of A Moderately-Low And High Carbohydrate Intake On Crossfit Performance, Kurt A. Escobar, Jacobo Morales, Trisha A. Vandusseldorp
The Effect Of A Moderately-Low And High Carbohydrate Intake On Crossfit Performance, Kurt A. Escobar, Jacobo Morales, Trisha A. Vandusseldorp
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 460-470, 2016. CrossFit is a metabolically demanding strength and conditioning method which performance may benefit from a carbohydrate (CHO)-rich diet. This study investigated the effect of three consecutive days of high CHO intake on CrossFit performance and corresponding metabolically -related variables in strength trained individuals. Eighteen subjects with a CHO intake of <6 g/kg/day were randomly assigned into a CHO (n = 9) or control (C) group (n =9) and underwent a 9-day training protocol. During days 1, 5, and 9, performance was measured as repetitions completed during a 12 minute CrossFit workout. Oxygen consumption (VO2), respiratory exchange ratio (RER), and blood lactate (BL) were also measured. Days 6-8, the CHO group increased CHO intake from <6 g/kg/day to 6-8 g/kg/day; the C group maintained their current intake of <6 g/kg/day. On days 6 and 7 both groups performed CrossFit workouts followed by a day of rest prior to day 9. There was a significant increase in repetitions completed in both groups in day 9 (vs. means score of day 1 + 5) (p = 0.002), but no differences between C and CHO groups (p = 0.111). However, the CHO group displayed a 15.2 repetition increase (+10.9%) in day 9, compared to 5.7 (+4.2%) by the C group. VO2, RER, and BL were not influenced by the experimental intervention. Our results suggest that the CrossFit-embraced practice of moderately-low CHO diets may be adequate in CHO during short periods of training, however, given the noted trend, extended training periods may be effected.
Physical Fitness And Self-Image: An Evaluation Of The Exercise Self-Schema Questionnaire Using Direct Measures Of Physical Fitness, Jafra D. Thomas, J. Mark Vanness, Bradley J. Cardinal
Physical Fitness And Self-Image: An Evaluation Of The Exercise Self-Schema Questionnaire Using Direct Measures Of Physical Fitness, Jafra D. Thomas, J. Mark Vanness, Bradley J. Cardinal
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 445-459, 2016. The purpose of this study was to perform a construct validity assessment of Kendzierski’s exercise self-schema theory questionnaire using objective measures of health-related physical fitness. This study tested the hypothesis that individuals with an exercise self-schema would possess significantly greater physical fitness than those who did not across three domains of health-related physical fitness: Body composition, cardiovascular fitness, and upper-body muscular endurance. Undergraduate student participants from one private university on the west coast of the United States completed informed consent forms and the exercise self-schema questionnaire within a classroom setting or at …
Eight Weeks Of Kettlebell Swing Training Does Not Improve Sprint Performance In Recreationally Active Females, Michael E. Holmstrup Ph.D., Brock T. Jensen Ph.D., William S. Evans, Emily C. Marshall
Eight Weeks Of Kettlebell Swing Training Does Not Improve Sprint Performance In Recreationally Active Females, Michael E. Holmstrup Ph.D., Brock T. Jensen Ph.D., William S. Evans, Emily C. Marshall
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 437-444, 2016. The kettlebell swing (KBS), emphasizing cyclical, explosive hip extension in the horizontal plane, aligns with movement- and velocity-specificity of sprinting. The present study examined the effect of an eight-week KBS intervention on sprinting in recreationally-active females, in comparison to an eight-week intervention using the stiff-legged deadlift (SDL). Following a pre-testing session measuring 30 meter sprint and countermovement vertical jump performance, participants were divided evenly by sprint time into KBS (n=8) and SDL (n=10) cohorts. Following familiarization with the exercises, KBS met twice weekly to perform swings using the Tabata interval (20s work, …
Inter-Investigator Reliability Of Anthropometric Prediction Of 1rm Bench Press In College Football Players, Jerry L. Mayhew
Inter-Investigator Reliability Of Anthropometric Prediction Of 1rm Bench Press In College Football Players, Jerry L. Mayhew
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 427-436, 2016. The purpose of this study was to determine the effect of inter-investigator differences in anthropometric assessments on the prediction of one-repetition maximum (1RM) bench press in college football players. Division-II players (n = 34, age = 20.4 ± 1.2 y, 182.3 ± 6.6 cm, 99.1 ± 18.4 kg) were measured for selected anthropometric variables and 1RM bench press at the conclusion of a heavy resistance training program. Triceps, subscapular, and abdominal skinfolds were measured in triplicate by three investigators and used to estimate %fat. Arm circumference was measured around a flexed biceps …
Cardiovascular Responses Between Low Cadence/High Force Vs. High Cadence/Low Force Cycling, Randy G. Canivel, Frank B. Wyatt
Cardiovascular Responses Between Low Cadence/High Force Vs. High Cadence/Low Force Cycling, Randy G. Canivel, Frank B. Wyatt
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 419-426, 2016. The purpose of this study was to determine the cardiovascular responses during sustained power output comparing low cadence (LC) high force (HF) vs. high cadence (HC) Low force (LF) cycle ergometry. Nine participants (N = 9) volunteered for this study. Participants signed a Human Participants consent form. A power output of 150 watts (W) for 20 minutes was estimated as the sustainable workload. Participants were instructed to pedal steadily at 50 rpm (LC) or 100 rpm (HC) with resistance adjusted to sustain 150 W. The following measures were obtained each minute during …
The Effect Of Metronome Use On Heart Rates And Rpe For Drum Corps Percussionists, Danielle Dye, Vaughn Barry
The Effect Of Metronome Use On Heart Rates And Rpe For Drum Corps Percussionists, Danielle Dye, Vaughn Barry
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 412-418, 2016. The purpose was to evaluate if playing a musical selection without a metronome would affect the heart rates and rate of perceived exertion for drum corps percussionists. Heart rate and RPE values were collected from 11 battery and 12 front ensemble members from one drum corps. The music consisted of two portions of the show at different tempos of 96 and 176 beats per minute. The music was performed at "standstill" with the battery members lined up behind the front ensemble marching, but not moving around or carrying their instruments. The participants …
Adolescents’ Perception Of The Psychosocial Factors Affecting Sustained Engagement In Sports And Physical Activity, James Gavin, Madeleine Mcbrearty, Kit Malo, Michael Abravanel, Tatiana Moudrakovski
Adolescents’ Perception Of The Psychosocial Factors Affecting Sustained Engagement In Sports And Physical Activity, James Gavin, Madeleine Mcbrearty, Kit Malo, Michael Abravanel, Tatiana Moudrakovski
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 384-411, 2016. The purpose of this study was to explore adolescents’ perceptions of psychosocial influences – personal characteristics, environmental factors and behavioural undertakings – influencing their prolonged involvement in sports and physical activity (PA). A qualitative approach was adopted wherein 16 adolescents (8 boys, 8 girls; mean age 15.9 years), who had been physically active for at least the last 8 years, and sixteen adults identified as their ‘parents’ or ‘guardians’ participated in semi-structured interviews. Interviews were transcribed verbatim and coded using the HyperRESEARCH software. Data were analysed using thematic analysis procedures. Four main …
The Effect Of Skinfold On The Assessment Of The Mean Power Frequency At The Fatigue Threshold, Alyssandra N. Baniqued,, Jorge M. Zuniga, Thomas C. Strunc, Katie M. Keenan, Agrini K. Boken, Jeff J. Anderson
The Effect Of Skinfold On The Assessment Of The Mean Power Frequency At The Fatigue Threshold, Alyssandra N. Baniqued,, Jorge M. Zuniga, Thomas C. Strunc, Katie M. Keenan, Agrini K. Boken, Jeff J. Anderson
International Journal of Exercise Science
International Journal of Exercise Science 9(4): 376-383, 2016. The purpose of this study was to determine if the amount of subcutaneous tissue over the quadriceps affects the assessment of mean power frequency at the fatigue threshold (MPFFT). It was hypothesized that greater skinfold values will result in lower power outputs associated to the MPFFT. Fourteen adults (Mean ± SD age = 20.7 ± 0.99; body weight = 72.8 ± 12.6 kg) performed an incremental cycle ergometry test to exhaustion while surface electromyographic (EMG) signals were measured from the vastus lateralis. The skinfold thickness of each leg …