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- Fitness Assessment (8)
- Other (7)
- Exercise (6)
- Biomechanics and Neural Control (4)
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- Fenugreek (3)
- Physical activity (3)
- Accelerometer (2)
- Aerobic (2)
- BOD POD (2)
- Biomechanics (2)
- Body Composition (2)
- Body Fat (2)
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- Ground Reaction Forces (2)
- Insoles (2)
- Lipids (2)
- Overtraining (2)
- Power (2)
- Psychology and Behavior (2)
- Running (2)
- Training (2)
- Validity (2)
- Academic curriculum in Exercise Science (1)
- Academic curriculum in Exercise and Sport Science (1)
- Activities of daily living; elders; exercise; functional ability; resistance training; reviewl ability; resistance training; review. (1)
- Aerobic capacity (1)
- Ageing (1)
- Aging (1)
- Air displacement plethysmography (1)
Articles 61 - 80 of 80
Full-Text Articles in Life Sciences
Fenugreek Extract Supplementation Has No Effect On The Hormonal Profile Of Resitance-Trained Males, Brandon Bushey, Lem W. Taylor, Colin W. Wilborn, Chris Poole, Cliffa A. Foster, Bill Campbell, Richard B. Kreider, Darryn S. Willoughby
Fenugreek Extract Supplementation Has No Effect On The Hormonal Profile Of Resitance-Trained Males, Brandon Bushey, Lem W. Taylor, Colin W. Wilborn, Chris Poole, Cliffa A. Foster, Bill Campbell, Richard B. Kreider, Darryn S. Willoughby
International Journal of Exercise Science: Conference Proceedings
Fenugreek is herb that has several purported uses in animal models. Despite no substantiated claims in human research models, fenugreek has been marketed in dietary products as having anabolic potential for resistance trained athletes. PURPOSE: The purpose of this study was to investigate the potential anabolic effects of fenugreek extract supplementation in conjunction with a controlled resistance training program. METHODS: Forty-five resistance trained males were matched by fat free mass and randomly assigned to ingest in a double blind manner capsules containing 500mg of a placebo (PL) (N = 24, 20.1 ± 2.6 yr, 85.5 ±13.4 kg, 177.00 ± 6.1 …
Arterial Pulse Wave Velocities Are Unchanged Following 12 Weeks Of Circuit Weight Training, Joseph D. Jacquez, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, Dong Dong Lui, Donovan L. Fogt, William H. Cooke
Arterial Pulse Wave Velocities Are Unchanged Following 12 Weeks Of Circuit Weight Training, Joseph D. Jacquez, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, Dong Dong Lui, Donovan L. Fogt, William H. Cooke
International Journal of Exercise Science: Conference Proceedings
Arterial stiffness is decreased after vigorous endurance training and increased after high-intensity resistance training. The effects of a combined program of moderate endurance and resistance exercise on arterial stiffness have not been determined. PURPOSE: To determine whether12 weeks of circuit weight training will decrease both central and peripheral arterial stiffness as estimated from pulse wave velocity (PWV). METHODS: Thirteen males and eight females (age 22 ± 2, height 162 ± 8 cm, weight 78 ± 20 kg) were assigned to control (n = 10) or exercise (n = 11) groups. Aerobic capacity and muscular strength were assessed before and at …
Reliability Of The Omron Hbf-500 Body Composition Monitor, Rodrigo G. Perez, Michael I. Pribyl, John D. Smith
Reliability Of The Omron Hbf-500 Body Composition Monitor, Rodrigo G. Perez, Michael I. Pribyl, John D. Smith
International Journal of Exercise Science: Conference Proceedings
The Omron HBF-500 incorporates both hand-to-hand and foot-to-foot electrical impedance technology. At this time, the authors are not aware of any studies examining the consistency of this monitor. PURPOSE: To assess the reliability of the Omron HBF-500 body composition monitor. METHODS: Twelve men and six women signed an informed consent and participated in the study (32.4±8.7 years, 169.9±7.5 cm, 81.4±15.9 kg, 28.2±5.5 kg.m-2). Participants reported to the laboratory on three separate occasions separated by at least one day and within one week. Participants were asked to refrain from exercise and caffeine on the days of testing and, were asked to …
Lower Extremity Kinetics In High And Low-Arched Athletes During Landing, Elizabeth T. Chalambaga, Douglas Powell, Doug Renshaw, Matthew Bice, Benjamin Long
Lower Extremity Kinetics In High And Low-Arched Athletes During Landing, Elizabeth T. Chalambaga, Douglas Powell, Doug Renshaw, Matthew Bice, Benjamin Long
International Journal of Exercise Science: Conference Proceedings
Abnormal foot function has been associated with an increased rate of injury in the athletic population. It has been shown that high-arched (HA) and low-arched (LA) athletes experience different injury patterns. These may be the manifestation of different loading and joint torque patterns in HA and LA athletes. It has been shown that HA and LA athletes have unique kinematic and kinetic patterns during running. However, little research has examined ground reaction forces (GRF) and lower extremity joint kinetics in HA and LA athletes during landing tasks. PURPOSE: To examine GRF and knee and ankle joint torques in HA and …
The Effects Of Insoles On Loading Rate In Level Running, Crystal Ruano, Douglas Powell, Doug Renshaw, Elizabeth Chalambaga, Matthew Bice
The Effects Of Insoles On Loading Rate In Level Running, Crystal Ruano, Douglas Powell, Doug Renshaw, Elizabeth Chalambaga, Matthew Bice
International Journal of Exercise Science: Conference Proceedings
Introduction: Running is one of the most popular recreational sports in America with over 250 million regular runners. Recreational and competitive runners often experience over-use injuries including plantar fasciitis, Achilles tendinitis and stress fractures. Previous research has shown that the transmission of ground reaction force through the lower extremity leads to these over-use injuries; however, it is not solely the magnitude of vertical ground reaction forces, but also the rate at which these forces are applied that may lead to lower extremity injury. Many recreational runners will use over-the-counter insoles as a method of treating an injury or as a …
Effects Of Hypovolemia On Cerebral Blood Velocity And Autoregulation During Upright Tilt: Implications For Post-Spaceflight Orthostasis, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, William H. Cooke
Effects Of Hypovolemia On Cerebral Blood Velocity And Autoregulation During Upright Tilt: Implications For Post-Spaceflight Orthostasis, Steven A. Romero, Eren R. Sanborn, Gilbert Moralez, William H. Cooke
International Journal of Exercise Science: Conference Proceedings
Orthostatic stability depends on maintenance of adequate cerebral blood flow. Orthostatic instability experienced by returning astronauts is associated with microgravity-induced hypovolemia, suggesting that hypovolemia may disrupt the ability of the cerebral vasculature to regulate blood flow. PURPOSE: To test the hypothesis that hypovolemia reduces cerebral blood velocity and impairs cerebral autoregulation (CA) during upright tilt. METHODS: Nine males (age 23 ± .5 yrs; height 172 ± 2 cm; weight 87 ± 3 kg; mean ± SE) were tilted head-up to 70° on two occasions separated by at least 5 days under euhydration (EUH) and dehydration (DEH) conditions. Dehydration was induced …
Pedometer Accuracy In Lower Limb Amputees: A Pilot Study, Gary Guerra, John D. Smith, Patricia Holmes, Ed Khu, Imelda Pena
Pedometer Accuracy In Lower Limb Amputees: A Pilot Study, Gary Guerra, John D. Smith, Patricia Holmes, Ed Khu, Imelda Pena
International Journal of Exercise Science: Conference Proceedings
To date there have been no studies examining the accuracy of the pedometer on lower limb amputees. PURPOSE: To measure the accuracy of pedometers in lower limb amputees. METHODS: Four participants (Table 1) had their height and weights measured and were then fitted with a Velcro Walk4Life™ pedometer belt (Walk4Life Inc, Plainfield, IL) around the waistline at the hip. They were then fitted with two pedometers: a SW-701 Digiwalker™ (NEW-LIFESTYLES, Inc., Lee's Summit, MO) spring-levered pedometer on the anterior mid-line of the right hip and a New-Lifestyles® NL-800 (NEW-LIFESTYLES, Inc., Lee's Summit, MO) piezoelectric pedometer just laterally to the SW-701. …
Accuracy Of The Omron Hbf-500 Body Composition Monitor, Michael I. Pribyl, Rodrigo Perez, John D. Smith, Christopher M. Hearon, G Richard Grimes
Accuracy Of The Omron Hbf-500 Body Composition Monitor, Michael I. Pribyl, Rodrigo Perez, John D. Smith, Christopher M. Hearon, G Richard Grimes
International Journal of Exercise Science: Conference Proceedings
The Omron HBF-500 is a relatively new and inexpensive body composition monitor that incorporates both hand-to-hand and foot-to-foot electrical impedance technology. At this time, the authors are not aware of any studies examining the accuracy of this monitor. PURPOSE: To assess the accuracy of the Omron HBF-500 body composition monitor using the BOD POD as a criterion. METHODS: Sixteen men and 23 women signed an informed consent and participated in the study (22.7±3.7 years, 168.8±9.1 cm, 73.8±17.8 kg, 25.7±5.6 kg.m-2). Participants were asked to refrain from exercise and caffeine on the day of testing, and were asked not eat a …
Influence Of Caloric Expenditure On Postprandial Triglyceride And Glucose Responses Following A High-Carbohydrate Meal, James Rowe, Heidi Bistrup, Kelley Henry, Melinda Villarreal, Kyle D. Biggerstaff, Vic Ben-Ezra
Influence Of Caloric Expenditure On Postprandial Triglyceride And Glucose Responses Following A High-Carbohydrate Meal, James Rowe, Heidi Bistrup, Kelley Henry, Melinda Villarreal, Kyle D. Biggerstaff, Vic Ben-Ezra
International Journal of Exercise Science: Conference Proceedings
Purpose: To examine the effects of aerobic exercise expending 350 and 700 kcal of energy on postprandial triglyceride (Tg) and glucose responses following a high carbohydrate (CHO) meal. Methods: Non-active individuals (n=9 women/4 men; age=22.8±3.7 yrs; Ht=169±10.4 cm; Wt=75.7± 22.4 kg; BMI=26.1±5.8 kg/m2; VO2 max=34.1±6.9 ml/kg/min) completed three trials in a random order: 1) control trial, 2) single exercise session expending 350 kcal (EX350), and 3) single exercise session expending 700 kcal (EX700). Exercise consisted of treadmill walking at 60% VO2 max until 350 and 700 kcal of energy had been expended. The control session consisted of seated rest. The …
Responses Of Lipids And Lipoproteins Following Acute And Training Resistance Exercise In Obese Postmenopausal Women, Ronique N. Pleasant, Melinda Villarreal, Joshua S. Wooten, Robert M. Hein, Robert D. Menzies, Melody D. Phillips
Responses Of Lipids And Lipoproteins Following Acute And Training Resistance Exercise In Obese Postmenopausal Women, Ronique N. Pleasant, Melinda Villarreal, Joshua S. Wooten, Robert M. Hein, Robert D. Menzies, Melody D. Phillips
International Journal of Exercise Science: Conference Proceedings
A single aerobic session and aerobic training can favorably modify lipids and lipoproteins in postmenopausal women, but the effects of a single resistance exercise session (RE) and resistance training (RT) remain equivocal. PURPOSE: To determine the acute effects of RE and chronic effects of 12 weeks of RT on lipid and lipoprotein-cholesterol concentrations in obese, postmenopausal women. METHODS: Sedentary, obese, non-smoking, postmenopausal women, not taking HRT, were divided into either an exercise group (E, n = 10; age = 65.7 ± 1.8 y; BMI = 32.6 ± 3.5 kg/m2) or control group (C, n = 11; …
A Meta-Analysis Of Biomarkers Associated With The Overtraining Syndrome, Alissa Donaldson, Frank B. Wyatt, Elise Brown, Tyler Fagan
A Meta-Analysis Of Biomarkers Associated With The Overtraining Syndrome, Alissa Donaldson, Frank B. Wyatt, Elise Brown, Tyler Fagan
International Journal of Exercise Science: Conference Proceedings
Overtraining (OT) syndrome has been investigated extensively with little agreement as to reliable markers for detection. A meta-analytic review is a procedure designed to compile studies in an area with hopes of reaching a consensus view. PURPOSE: The purpose of this meta-analysis was to provide summary quantitative findings of biomarkers (i.e., blood) associated with the overtraining syndrome. METHODS: A meta-analytic research design was utilized to investigate selected studies allowing for a coding process to record data. Thirteen studies met inclusion/exclusion criteria. Biomarkers included samples taken with subjects in normal (N) condition and during OT. These biomarkers were the following: glutamine …
Influence Of Menopausal Status On Lipids And Lipoproteins And Fat Mass Distribution: The Pioneer Project, Melinda Villarreal Ms., Ronique Pleasant, Nancy M. Dimarco, Barney C. Sanborn, Joshua S. Wooten
Influence Of Menopausal Status On Lipids And Lipoproteins And Fat Mass Distribution: The Pioneer Project, Melinda Villarreal Ms., Ronique Pleasant, Nancy M. Dimarco, Barney C. Sanborn, Joshua S. Wooten
International Journal of Exercise Science: Conference Proceedings
Following menopause, fat redistribution and increased risk for dyslipidemia are common. The influence of menopause; however, on the associations between total and regional fat mass with lipids and lipoproteins remains unclear. PURPOSE: The purpose of this investigation was to determine the influence of menopausal status on associations between total and regional fat mass and lipids and lipoproteins. METHODS: Sedentary, non-smoking women (n=209) were grouped based on current menstrual status: premenopausal (n=143, mean±SD; age=42.7±7.7 yr, BMI=24.5±4.0 kg•m -2, WC=77.4±9.9 cm) or postmenopausal (n=66, mean±SD; age=52.9±5.3 yr, BMI= 24.9±4.2 kg•m -2, WC=78.8±9.9 cm). Fasting (12 hr) serum samples …
Psychological Markers Of The Overtraining Syndrome, Elise Brown, Frank B. Wyatt, Alissa Donaldson
Psychological Markers Of The Overtraining Syndrome, Elise Brown, Frank B. Wyatt, Alissa Donaldson
International Journal of Exercise Science: Conference Proceedings
The overtraining (OT) syndrome is characterized by performance plateaus and decrements and is manifested through various physiological and psychological variables. A qualitative review will summarize specific factors associated with OT to better understand this syndrome. PURPOSE: The purpose of this review is to summarize psychological aspects associated with the OT syndrome. METHODS: This study reviewed 13 articles that qualified for the inclusion/exclusion criteria. The variables measured include tension, anger, fatigue, confusion, depression, vigor, sleep, stress, and self-perceptions of physical status. Participants were measured during a normal (N) phase, midway phase (MW), and OT phase. In the review, selected variables (i.e., …
Validation Of The Actiheart Monitor For The Measurement Of Physical Activity, Tiago V. Barreira†, Minsoo Kang‡, Jennifer L. Caputo‡, Richard S. Farley‡, Matthew S. Renfrow†
Validation Of The Actiheart Monitor For The Measurement Of Physical Activity, Tiago V. Barreira†, Minsoo Kang‡, Jennifer L. Caputo‡, Richard S. Farley‡, Matthew S. Renfrow†
International Journal of Exercise Science
The Actiheart monitor uniquely allows simultaneous measurement of heart rate and movement counts. The purpose of this study was to establish validity evidence for the Actiheart monitor under laboratory and free-living conditions. A total of 34 college students (17 males and 17 females, age = 21.8 ± 3.6 years) participated in the study. In the laboratory environment, the participants completed three, 5 min bouts of treadmill walking and/or running at speeds of 3.2, 6.4, and 9.6 km/h. Outside the laboratory, participants were asked to perform free-living physical activity for 30 min. For validation, energy expenditure, movement counts, and heart rate …
Modeling Oxygen Uptake During V1 Treadmill Roller Skiing, Robert S. Bowen†, Randall L. Jensen‡, Jennifer M. Ryan†, Phillip B. Watts‡
Modeling Oxygen Uptake During V1 Treadmill Roller Skiing, Robert S. Bowen†, Randall L. Jensen‡, Jennifer M. Ryan†, Phillip B. Watts‡
International Journal of Exercise Science
The use of regression equations to predict oxygen uptake in relation to speed, grade, power output, and anthropometric characteristics is common in cardiac rehabilitation and athlete fitness testing. Research has suggested that sport specific testing improves the reliability of the test methodology and is appropriate for the development of effective training programs. This study focused on the development of a cross-country skiing specific predictor of maximal oxygen uptake based on treadmill speed, treadmill grade, gender, and body mass. This project simulated snow skiing on a large research treadmill using roller skis. A small sample size (N = 34) warranted the …
Exercise Bouts At Three Different Intensities Fail To Potentiate Concentric Power, Chad A. Cabrera†, Jacobo Morales‡, Felicia Greer‡, Robert W. Pettitt‡
Exercise Bouts At Three Different Intensities Fail To Potentiate Concentric Power, Chad A. Cabrera†, Jacobo Morales‡, Felicia Greer‡, Robert W. Pettitt‡
International Journal of Exercise Science
Postactivation potentiation (PAP) has been hypothesized previously to occur during voluntary, concentric actions. We tested the hypothesis that one of at least three different intensities of conditioning exercises would evoke potentiation of power during the concentric, bench press throw (BPT). Twelve men (age = 22.9 &#; 2.7 years, bench press 1 repetition maximum (1RM) = 1.20 ± 0.12 kg•kg-1 body weight) completed five isotonic conditioning presses at ~55, 70, and 86% 1RM, in counterbalanced order, and on separate days. Average and peak power of the BPT using a load of 55% 1RM along with surface electromyography (EMG) of the triceps …
Influence Of Body Composition, Oral Contraceptive Use, And Physical Activity On Bone Mineral Density In Premenopausal Women, Vanessa D. Sherk†, Clint D. Howard†, Michael G. Bemben‡, Debra A. Bemben‡
Influence Of Body Composition, Oral Contraceptive Use, And Physical Activity On Bone Mineral Density In Premenopausal Women, Vanessa D. Sherk†, Clint D. Howard†, Michael G. Bemben‡, Debra A. Bemben‡
International Journal of Exercise Science
In premenopausal women, low bone density may reflect attainment of a lower peak bone mass which can increase risk of osteoporosis after menopause. The purpose of this study was to examine the relationship between total body, lumbar spine, and proximal femur bone mineral density (BMD) and body composition and oral contraceptive (OC) use in 18-30 year old women. Sixty-five healthy women, split into groups of oral contraceptive users (OC, n = 36) and non oral contraceptive users (Non-OC, n = 29), completed Baecke physical activity, calcium intake, and menstrual history questionnaires. Total body, AP lumbar spine, and dual proximal femur …
Comparison Of Body Composition Measurements Using A New Caliper, Two Established Calipers, Hydrostatic Weighing, And Bodpod, Erin E. Talbert*, Michael G. Flynn‡, Jeffrey W. Bell†, Andres E. Carrillo†, Marquita D. Dill†, Christiania N. Christensen*, Colleen M. Thompson†
Comparison Of Body Composition Measurements Using A New Caliper, Two Established Calipers, Hydrostatic Weighing, And Bodpod, Erin E. Talbert*, Michael G. Flynn‡, Jeffrey W. Bell†, Andres E. Carrillo†, Marquita D. Dill†, Christiania N. Christensen*, Colleen M. Thompson†
International Journal of Exercise Science
Purposes: (1) To compare the Lafayette Instruments (LI) skinfold caliper to the Lange (L) and Harpenden (H) calipers using a diverse subject population. (2) To determine the validity of the LI caliper in a subset of subjects by comparing body compositions from skinfold thicknesses to those measured by hydrostatic weighing (HW) and air displacement plethysmography (ADP). (3) To compare measurements obtained by experienced (EX) and inexperienced (IX) technicians using all three calipers. Methods: Skinfold measurements were performed by both EX and IX technicians using three different calipers on 21 younger (21.2 ± 1.5 yrs) and 20 older (59.2 ± 4 …
Timing Carbohydrate Beverage Intake During Prolonged Moderate Intensity Exercise Does Not Affect Cycling Performance, George G. Schweitzer†, John D. Smith‡, James D. Lecheminant‡
Timing Carbohydrate Beverage Intake During Prolonged Moderate Intensity Exercise Does Not Affect Cycling Performance, George G. Schweitzer†, John D. Smith‡, James D. Lecheminant‡
International Journal of Exercise Science
Carbohydrate beverages consumed during long-term exercise have been shown to attenuate fatigue and improve performance; however, the optimal timing of ingestion is unclear. Therefore, the purpose of this study was to determine if timing the carbohydrate ingestion (front-loading (FL), continual loading (CL), and end-loading (EL)) during prolonged exercise influenced exercise performance in competitive cyclists. Ten well-trained cyclists completed three separate exercise bouts on a bicycle ergometer, each lasting 2 hours at an intensity of ~67% VO2 max, followed by a 15-minute “all out” time trial. In the FL trial, participants ingested a carbohydrate beverage during the first hour and …
From The Editors: Assessing The International Journal Of Exercise Science After One Year, T. Scott Lyons, James W. Navalta
From The Editors: Assessing The International Journal Of Exercise Science After One Year, T. Scott Lyons, James W. Navalta
International Journal of Exercise Science
Western Kentucky University (WKU) strives to be a “leading American university with international reach.” In an effort to contribute to that mission, Drs. Scott Lyons and James Navalta of the Exercise Science program endeavored in 2007 to start a student-focused, on-line journal. Working closely with Berkeley Press, the platform for the International Journal of Exercise Science (IJES) was established during the summer of 2007 and it went “live” in January 2008. The journal has now been on-line for over one year and has enjoyed great success, with quality research submitted from graduate and undergraduate students, as well as professionals. We …