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Full-Text Articles in Life Sciences
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 …
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 …
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 …
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 …
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 …
Effects Of Static Stretching On Squat Performance In Division I Female Athletes, Clare F. Heisey, J. Derek Kingsley
Effects Of Static Stretching On Squat Performance In Division I Female Athletes, Clare F. Heisey, J. Derek Kingsley
International Journal of Exercise Science
International Journal of Exercise Science 9(3): 359-367, 2016. Static stretching was once recognized as a method of preparation for physical activity that would inhibit performance and increase risk of injury. However, a growing body of research suggests that static stretching may not have an inhibitory effect. Regardless, the data have not examined gender differences or the fatigue index (FI) and flexibility effects of static stretching on the back squat over multiple sets. Therefore, the purpose of this study was to examine the relationship between a static-stretch condition (SC) and control condition (CC) on flexibility and the FI of Division I …
Factors Influencing Muscular Strength And Endurance In Disadvantaged Children From Low-Income Families, Yi Fang, Ryan D. Burns, James C. Hannon, Timothy A. Brusseau
Factors Influencing Muscular Strength And Endurance In Disadvantaged Children From Low-Income Families, Yi Fang, Ryan D. Burns, James C. Hannon, Timothy A. Brusseau
International Journal of Exercise Science
International Journal of Exercise Science 9(3): 306-317, 2016. Examining the correlates of muscular strength and endurance in children from low-income families will provide evidence for interventions to improve these parameters. The purpose of this study was to determine the predictors and trends of muscular strength and endurance in at-risk school-aged children. The sample included 1,232 children (Mean age = 8.8 ± 1.6 years; 625 girls, 607 boys; 60% Hispanic) recruited from three U.S. low-income schools. Children performed health-related fitness testing and wore pedometers for one school week. A stratified random subsample (n = 533) also wore accelerometers to record sedentary …
Physiological Characteristics Of Youth Synchronized Skaters, Laura E. Fischer M.Ed., Lynn A. Darby Ph.D., Amy L. Morgan Ph.D., David A. Tobar Ph.D.
Physiological Characteristics Of Youth Synchronized Skaters, Laura E. Fischer M.Ed., Lynn A. Darby Ph.D., Amy L. Morgan Ph.D., David A. Tobar Ph.D.
International Journal of Exercise Science
International Journal of Exercise Science 9(3): 270-282, 2016. Figure skating is a lifelong sport with participation rates increasing for skaters of all ages. Development within the five disciplines of figure skating (individual skating, synchronized skating, pairs skating, ice dancing, and theater on ice) has led to increased physical demands placed on skaters’ bodies. As a result, focus on sport performance testing, training, and injury prevention specific to figure skating is increasing. The purpose of this study was to use field tests to describe the physical characteristics of synchronized skaters and to determine the relationships between these physiological characteristics and skating …
The Effects Of A Commercial, Pre-Exercise Energy Drink Supplement On Power, Muscular Endurance, And Repeated Sprint Speed, Bill I. Campbell, Jasmine L. Richmond, J. Jay Dawes
The Effects Of A Commercial, Pre-Exercise Energy Drink Supplement On Power, Muscular Endurance, And Repeated Sprint Speed, Bill I. Campbell, Jasmine L. Richmond, J. Jay Dawes
International Journal of Exercise Science
International Journal of Exercise Science 9(2): 205-213, 2016. The purpose of this study was to investigate the effects of ingesting a pre-workout commercial energy drink supplement on multiple parameters of physical performance, including upper body and trunk muscular endurance, muscular power, and repeated sprint speed. 19 college-aged males (n = 8) and females (n = 11) participated in this randomized, double-blind, parallel groups study. At baseline and post-testing (about one week after baseline testing), anaerobic power (assessed via a countermovement vertical jump), muscular endurance (assessed via YMCA bench press test and a curl-up test), and repeated sprint speed were assessed. …
Teacher Perceptions Of Fitnessgram® And Application Of Results, William M. Miller, Sean M. Bulger, Hugh D. Campbell, Eloise Elliott, Christa L. Lilly, Robert L. Wiegand
Teacher Perceptions Of Fitnessgram® And Application Of Results, William M. Miller, Sean M. Bulger, Hugh D. Campbell, Eloise Elliott, Christa L. Lilly, Robert L. Wiegand
International Journal of Exercise Science
International Journal of Exercise Science 9(2): 187-204, 2016. The purpose of this study was to examine perceptions of physical educators toward state-mandated use of FITNESSGRAM®. Two validated instruments were employed to collect data regarding teacher (n=174) perceptions and use. Mean (M) and standard deviations (SD) were calculated for all scale scores with t-tests and ANOVAs testing for differences by selected demographics. Overall attitudes toward FITNESSGRAM® were slightly positive (M = 4.52, SD = 1.06) on a 7-point Likert scale. The demographic variable gender (p = 0.017) was found to be …
The Effects Of A Plyometric Training Program On Jump Performance In Collegiate Figure Skaters: A Pilot Study, Jennifer L. Hunnicutt, Craig L. Elder, J. Jay Dawes, Amanda J. Sinclair Elder
The Effects Of A Plyometric Training Program On Jump Performance In Collegiate Figure Skaters: A Pilot Study, Jennifer L. Hunnicutt, Craig L. Elder, J. Jay Dawes, Amanda J. Sinclair Elder
International Journal of Exercise Science
International Journal of Exercise Science 9(2): 175-186, 2016. Plyometric training has been implemented to increase jump height in a variety of sports, but its effects have not been researched in figure skating. The purpose of this study was to determine the effects of a plyometric training program on on-ice and off-ice jump performance. Six collegiate figure skaters (19.8±1.2 years; 164.7±4.9 cm; 60.3±11.6 kg) completed a six-week sport-specific plyometric training program, consisting of low to moderate intensity plyometric exercises, while eight collegiate figure skaters (21.1±3.9 years; 162.6±6.0 cm; 60.4±6.1 kg) served as the control group. Significant increases were found for vertical …
The Relationship Between Aerobic Capacity And Bone Health In Young Women, Brittany R. Masteller, Curt B. Dixon, Eric S. Rawson, Joseph L. Andreacci
The Relationship Between Aerobic Capacity And Bone Health In Young Women, Brittany R. Masteller, Curt B. Dixon, Eric S. Rawson, Joseph L. Andreacci
International Journal of Exercise Science
International Journal of Exercise Science 9(1): 56-63, 2016. The purpose of the present investigation was to examine the relationship between maximal oxygen consumption (VO2max) and bone health in young women. Eighty-three participants (age=21.0±2.2 years; BMI=22.4±3.0 kg/m2) reported for testing on two occasions separated by 48 hours. During visit 1 body composition assessment via dual-energy X-ray absorptiometry (DXA) and during visit 2, a VO2max test performed on a motorized treadmill. Weak correlations were found between absolute VO2max (L/min) and whole-body bone mineral density (WB-BMD: r=0.24, p=0.031) and whole-body bone mineral content (WB-BMC: …
Validation Of Self-Reported Anthropometrics In Female College Freshmen, Ryan J. Leone, Amy Morgan, Mary-Jon Ludy
Validation Of Self-Reported Anthropometrics In Female College Freshmen, Ryan J. Leone, Amy Morgan, Mary-Jon Ludy
International Journal of Exercise Science
International Journal of Exercise Science 9(1): 47-55, 2016. Most investigations concerning the validity of self-reported anthropometrics focus on weight, height, and body mass index. This study extends those investigations by exploring the impact of self-reporting bias on the disease risk indicators of waist circumference and body fat percentage. Female college freshmen (n=128) self-reported weight and height, then underwent measurements for weight, height, waist circumference, and body fat percentage. Self-reporting bias was defined as self-reported minus directly-assessed anthropometric value. Despite no differences in self-reported versus directly-assessed weight or height for the total group, students with high waist circumference and excess fat …
An Analysis Of The Medical Costs Of Obesity For Fifth Graders In California And Texas, Danielle E. Levitt, Allen W. Jackson, James R. Morrow Jr.
An Analysis Of The Medical Costs Of Obesity For Fifth Graders In California And Texas, Danielle E. Levitt, Allen W. Jackson, James R. Morrow Jr.
International Journal of Exercise Science
International Journal of Exercise Science 9(1): 26-33, 2016. The prevalence of childhood obesity in the United States increased more than three-fold from 1976 – 1980 to 2007 – 2008. The Presidential Youth Fitness Program’s FitnessGram® is the current method recommended by the President’s Council on Fitness, Sports & Nutrition for assessing health-related fitness factors, including body composition. FitnessGram® data from California and Texas, the two most populous states, over a three-year time span indicate that more than one-third of fifth grade students, typically ten-year-olds, are obese. Previous studies report that an obese ten-year-old child who remains obese into adulthood will …