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Articles 1531 - 1560 of 2299

Full-Text Articles in Physiology

Upper Body Muscular Activation During Variations Of Push-Ups In Healthy Men, Caroline C. Allen, Katie A. Dean, Alan P. Jung, John K. Petrella Oct 2013

Upper Body Muscular Activation During Variations Of Push-Ups In Healthy Men, Caroline C. Allen, Katie A. Dean, Alan P. Jung, John K. Petrella

International Journal of Exercise Science

International Journal of Exercise Science 6(4) : 278-288, 2013. The purpose of this study was to assess neural activity for upper body musculature in college-age men during repetitions of a conventional pushup or a Perfect PushupTM. Eighteen healthy men (21.6±1 yr, 182.5±7 cm, 87.4±15 kg) completed five repetitions of a conventional pushup and Perfect PushupTM while using a wide hand base of support for the upper body. Body position, hand placement, and cadence of the pushup were standardized. Root mean square electromyography (RMS-EMG, mV/Sec) was collected for the triceps brachii (TB), pectoralis major (PM), serratus anterior (SA), …

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Comparisons Between Swing Phase Characteristics Of Race Walkers And Distance Runners, Laura C. Smith, Brian Hanley Oct 2013

Comparisons Between Swing Phase Characteristics Of Race Walkers And Distance Runners, Laura C. Smith, Brian Hanley

International Journal of Exercise Science

International Journal of Exercise Science 6(4) : 269-277, 2013. The aim of this study was to analyze swing characteristics during race walking and to compare these with distance running. The rules of race walking demand that no visible flight time should occur and the stance leg must be straightened from initial contact to midstance. Previous research has not examined whether these rules also have an effect on swing and what consequences might arise. Ten male race walkers and ten male distance runners walked or ran respectively on an instrumented treadmill for 10 km with two in-dwelling force plates. Trials lasted …

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Attitudes Toward And Preferences For Male And Female Personal Trainers, James P. Fisher, Catherine Platts, Marie Stopforth Oct 2013

Attitudes Toward And Preferences For Male And Female Personal Trainers, James P. Fisher, Catherine Platts, Marie Stopforth

International Journal of Exercise Science

International Journal of Exercise Science 6(4) : 256-268, 2013. Previous research has considered the perceptions of athletes towards gender of coach and strength and conditioning coach. However, to date there appears little research considering the perceptions of clients towards gender of personal trainer. The purpose of this study was to investigate male and females perceptions of same- or opposite-gender personal trainers. Four hundred and two (male = 201, female = 201) undergraduate University student participants completed an adapted version of the Attitudes of Athletes toward Male versus Female Coaches Questionnaire (AAMFC-Q; 23). A 2 x 2 multivariate analysis of variance …

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Acquisition Delays Affect Lymphocyte Subset Counts But Not Markers Of Exercise-Induced Apoptosis, Holly B. Kell, Guilherme Borges Pereira, Ramires Alsamir Tibana, Michael Jarrett, Mark A. Schafer, Jonato Prestes, Antonio Santo, James W. Navalta Jul 2013

Acquisition Delays Affect Lymphocyte Subset Counts But Not Markers Of Exercise-Induced Apoptosis, Holly B. Kell, Guilherme Borges Pereira, Ramires Alsamir Tibana, Michael Jarrett, Mark A. Schafer, Jonato Prestes, Antonio Santo, James W. Navalta

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 250-255, 2013. With the emergence of shared facilities, the possibility of a processing delay is increased as time on instrumentation becomes less available. The purpose of this investigation was the evaluate the effect of a 24h time delay on lymphocyte subset concentration, as well as for the apoptotic marker annexin V. Fourteen healthy individuals completed an incremental treadmill test to exhaustion, and blood samples were obtained before and after exercise. The samples were labeled in duplicate with mixtures consisting of flow cytometry staining buffer, the biomarker for early-phase cell death (annexin V), and …

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Activity-Specific Effects Of Fatigue Protocols May Influence Landing Kinematics: A Pilot Study, Adrian Chavez, Duane Knudson, Rod Harter, Kevin Mccurdy Jul 2013

Activity-Specific Effects Of Fatigue Protocols May Influence Landing Kinematics: A Pilot Study, Adrian Chavez, Duane Knudson, Rod Harter, Kevin Mccurdy

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 242-249, 2013. Fatigue is a common neuromuscular factor examined in relation to risk of ACL injury. Unfortunately, variations between the protocols used to induce fatigue in studies examining this phenomenon may have contributed to reported inconsistencies in the effects of fatigue on movements with high-risk of ACL injury. In addition, the ecological validity of fatigue experienced as a result of protocols commonly administered in the experimental setting is unclear. The purpose of this study was to examine the ecological validity, using basketball competition as the criterion measure, of two fatigue protocols commonly used …

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Manuscript Has Been Retracted, Michael Smith, Nicholas Hanson, Alexander Lucas, Steven Devor Jul 2013

Manuscript Has Been Retracted, Michael Smith, Nicholas Hanson, Alexander Lucas, Steven Devor

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 236-241, 2013. Manuscript has been retracted.

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Children And Pedometers: A Study In Reactivity And Knowledge, Steven L. Prewitt, James C. Hannon, Timothy A. Brusseau Jul 2013

Children And Pedometers: A Study In Reactivity And Knowledge, Steven L. Prewitt, James C. Hannon, Timothy A. Brusseau

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 230-235, 2013. Pedometers are simple inexpensive tools that are widely used for the measurement of physical activity. Reactivity is always a concern when using pedometers. An issue not yet addressed is the role previous knowledge has on the impact of reactivity. The primary purpose of this study was to examine if reactivity exists in 4th-6th grade students and if prior knowledge about pedometers had an effect on reactivity. Participants included 109 (54 females) 4th- 6th grade students from a suburban charter school. Prior to data collection, students …

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Measuring Activity Energy Expenditure: Accuracy Of The Gt3x+ And Actiheart Monitors, David Mcminn, Rijan Acharya, David A. Rowe, Stuart R. Gray, Julia L. Allan Jul 2013

Measuring Activity Energy Expenditure: Accuracy Of The Gt3x+ And Actiheart Monitors, David Mcminn, Rijan Acharya, David A. Rowe, Stuart R. Gray, Julia L. Allan

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 217-229, 2013. The purpose was to determine the accuracy of the GT3X+ and Actiheart monitors for estimating energy expenditure (EE) and steps. Additionally, to investigate agreement between waist- and wrist-mounted GT3X+ EE outputs. Nineteen participants (mean age=30) completed three treadmill walking trials at self-selected slow, medium, and fast speeds while wearing two GT3X+ (waist and wrist) and an Actiheart. Activity monitor EE was compared to indirect calorimetry criterion EE using Pearson correlations and ANOVAs. A Bland-Altman plot was used to investigate agreement between GT3X+ waist- and wrist-determined EE. GT3X+ determined steps were compared …

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Preseason And Post Season Body Composition Does Not Change Relative To Playing Time In Division I Female Basketball Players, Emma Ladwig, Andrew L. Shim, Jae P. Yom, Patrick Cross, Justin Beebe Jul 2013

Preseason And Post Season Body Composition Does Not Change Relative To Playing Time In Division I Female Basketball Players, Emma Ladwig, Andrew L. Shim, Jae P. Yom, Patrick Cross, Justin Beebe

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 208-216, 2013. The purpose of the study was to determine if preseason and postseason body fat percentages (BF%) change relative to playing time in Division I women’s basketball players. Subjects for the study included 11 National Collegiate Athletic Association (NCAA) Division I female collegiate basketball athletes over the age of 18 from a Midwest public university. Demographic data of each subject (age 20.09 +1.81 yrs., weight 71.13 +10.85 kg., height 176.48 + 8.33 cm.) was taken before the initial body fat assessment. The subjects underwent preseason and postseason BOD POD® testing to …

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Measurements Of Heart Rate And Accelerometry To Determine The Physical Activity Level In Boys Playing Paintball, Michelle Jarvi, Gregory A. Brown, Brandon S. Shaw, Ina Shaw Jul 2013

Measurements Of Heart Rate And Accelerometry To Determine The Physical Activity Level In Boys Playing Paintball, Michelle Jarvi, Gregory A. Brown, Brandon S. Shaw, Ina Shaw

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 199-207, 2013. Paintball is a popular recreational sport played by 3.655 million Americans and may be sufficient physical activity to promote health. Paintball has been played as an organized sport since the 1980’s and is essentially a game of tag, except instead of touching an opponent by hand opponents are tagged by shooting them with a paintball that leaves a mark indicating who has been eliminated. A previous evaluation of paintball as physical activity had 13 subjects undergo a VO2max test to develop a heart rate (HR) /oxygen consumption relationship, and …

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Evaluation Of A Circumference-Based Prediction Equation To Assess Body Composition Changes In Men, John M. Schuna Jr, Sarah J. Hilgers-Greterman, Trista L. Manikowske, Jared M. Tucker, Gary Liguori Jul 2013

Evaluation Of A Circumference-Based Prediction Equation To Assess Body Composition Changes In Men, John M. Schuna Jr, Sarah J. Hilgers-Greterman, Trista L. Manikowske, Jared M. Tucker, Gary Liguori

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 188-198, 2013. This study evaluated the validity of the current U.S. Department of Defense (DOD) circumference-based prediction equation for males to detect body composition changes in comparison to air-displacement plethysmography (ADP). Body composition was assessed using ADP and the DOD equation at the beginning and end of an academic school year among 21 male (18-29 years-old) Army ROTC cadets. Body mass significantly increased (+1.8 Kg) after 9 months. Significant method by time interactions for percent body fat (percent body fat), fat mass (FM), and fat-free mass were found (p = 0.022, p …

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The Effect Of Active Vs. Supine Recovery On Heart Rate, Power Output, And Recovery Time, Lars M. Larson, Ryan M. Smeltzer, John K. Petrella, Alan P. Jung Jul 2013

The Effect Of Active Vs. Supine Recovery On Heart Rate, Power Output, And Recovery Time, Lars M. Larson, Ryan M. Smeltzer, John K. Petrella, Alan P. Jung

International Journal of Exercise Science

International Journal of Exercise Science 6(3) : 180-187, 2013. The purpose of this research was to compare the effectiveness of two different post-exercise recovery methods, active and passive, on the heart rate (HR), peak power (PP), average power (AP) and time to Baseline Active Heart Rate (BAHR) following three short (10 s) bicycle sprints. Fourteen males (mean age: 21.0±0.7 yrs) participated in the study. Each participant performed two separate trials that included three maximal Wingate rides of 10 s each. In one trial each ride was followed by a two-minute supine recovery. In the second trial each ride was followed …

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Unhealthy Behaviors And The Relationship To Body Mass Index (Bmi) In College Students, J. Popivchak, B. Larouere, Carena S. Winters May 2013

Unhealthy Behaviors And The Relationship To Body Mass Index (Bmi) In College Students, J. Popivchak, B. Larouere, Carena S. Winters

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Comparing Physiological Responses While Walking On A Standard Motorized Treadmill And Curve Treadmill, J. Phipps, S. Miller, S. Voran, M. Lister, Harold S. Kieffer May 2013

Comparing Physiological Responses While Walking On A Standard Motorized Treadmill And Curve Treadmill, J. Phipps, S. Miller, S. Voran, M. Lister, Harold S. Kieffer

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Relationships Between Peak Oxygen Uptake And Arterial Function: A Preliminary Study, M. Pearman, E. Devallance, S. Fournier, D. Bonner, B. E. Warden, W. Gharib, D. Donley, P. Chantler May 2013

Relationships Between Peak Oxygen Uptake And Arterial Function: A Preliminary Study, M. Pearman, E. Devallance, S. Fournier, D. Bonner, B. E. Warden, W. Gharib, D. Donley, P. Chantler

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Cardiovascular Responses To High Intensity Aerobic And Anaerobic Exercises, A. Parker, P. Messersmith, K. Beil, K. Mahoney, K. Jones, J. A. Mckenzie, S. D. Mccole May 2013

Cardiovascular Responses To High Intensity Aerobic And Anaerobic Exercises, A. Parker, P. Messersmith, K. Beil, K. Mahoney, K. Jones, J. A. Mckenzie, S. D. Mccole

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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The Effects Of Caffeine On Maximal Anaerobic Exercise, K. Ogden, J. Haak, Harold S. Kieffer, N. Marlowe May 2013

The Effects Of Caffeine On Maximal Anaerobic Exercise, K. Ogden, J. Haak, Harold S. Kieffer, N. Marlowe

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Effects Of Creatine Monohydrate Vs. Creatine Hydrochloride On Muscle Endurance Performance, K. Naylor, C. Albright, C. Liggitt, A. Kolenc, R. Robinson, W. Braun, J. Sanders May 2013

Effects Of Creatine Monohydrate Vs. Creatine Hydrochloride On Muscle Endurance Performance, K. Naylor, C. Albright, C. Liggitt, A. Kolenc, R. Robinson, W. Braun, J. Sanders

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Gender-Specific Equations For Predicting Maximal Heart Rate In Exercise Stress Testing, T. Nagle, E. Godlasky, S. Weber-Peters, R. Bradford, N. Miller, M. Lott May 2013

Gender-Specific Equations For Predicting Maximal Heart Rate In Exercise Stress Testing, T. Nagle, E. Godlasky, S. Weber-Peters, R. Bradford, N. Miller, M. Lott

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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The Relationship Between Body Composition And Baseball Performance In Division Ii Baseball Players, B. Muth, C. A. Witmer, S. E. Davis, J. Guers May 2013

The Relationship Between Body Composition And Baseball Performance In Division Ii Baseball Players, B. Muth, C. A. Witmer, S. E. Davis, J. Guers

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Body Image And Associated Behaviors Among College-Aged Students, E. Miller, B. Larouere, Carena S. Winters May 2013

Body Image And Associated Behaviors Among College-Aged Students, E. Miller, B. Larouere, Carena S. Winters

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Validity Of Using Functional Threshold Power And Intermittent Power To Predict Mountain Bike Race Outcome, M. Miller, G. Moir May 2013

Validity Of Using Functional Threshold Power And Intermittent Power To Predict Mountain Bike Race Outcome, M. Miller, G. Moir

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Can Standing Long Jump Distance Be Predicted From Standing Vertical Jump Distance?, L. Merk, C. Michael, Ben Meyer May 2013

Can Standing Long Jump Distance Be Predicted From Standing Vertical Jump Distance?, L. Merk, C. Michael, Ben Meyer

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Effects Of A Two Week College Weight Training Course On Body Weight, Power, And Strength, J. Mcnamara May 2013

Effects Of A Two Week College Weight Training Course On Body Weight, Power, And Strength, J. Mcnamara

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Relationship Of Mechanomyographic Amplitude To Torque Using A New Accelerometer Based Device, M. J. Mcmahon, S. Mookerjee May 2013

Relationship Of Mechanomyographic Amplitude To Torque Using A New Accelerometer Based Device, M. J. Mcmahon, S. Mookerjee

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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High Dietary Sodium Reduces Flow Mediated Dilation In Humans With Salt Sensitive & Salt Resistant Bp, E. L. Matthews, J. J. Dupont, J. L. Greaney, S. L. Lennon-Edwards, D. G. Edwards, W. B. Farquhar May 2013

High Dietary Sodium Reduces Flow Mediated Dilation In Humans With Salt Sensitive & Salt Resistant Bp, E. L. Matthews, J. J. Dupont, J. L. Greaney, S. L. Lennon-Edwards, D. G. Edwards, W. B. Farquhar

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Does Eating A Meal Before Testing Alter The Percent Body Fat Measurement Determined By Bioelectrical Impedance Analysis?, B. Masteller, Curt B. Dixon, Joseph L. Andreacci May 2013

Does Eating A Meal Before Testing Alter The Percent Body Fat Measurement Determined By Bioelectrical Impedance Analysis?, B. Masteller, Curt B. Dixon, Joseph L. Andreacci

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Voluntary Wheel Running Augments Vascular Function In Rats With Chronic Kidney Disease, C. R. Martens, J. M. Kuczmarski, S. L. Lennon-Edwards, D. G. Edwards May 2013

Voluntary Wheel Running Augments Vascular Function In Rats With Chronic Kidney Disease, C. R. Martens, J. M. Kuczmarski, S. L. Lennon-Edwards, D. G. Edwards

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Comparing The Effect Of Overspeed Training On Ncaa Division Iii Lacrosse Athletes, N. Marlowe, K. Flanick, D. Rohrer, L. Burtnett, Harold S. Kieffer May 2013

Comparing The Effect Of Overspeed Training On Ncaa Division Iii Lacrosse Athletes, N. Marlowe, K. Flanick, D. Rohrer, L. Burtnett, Harold S. Kieffer

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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Metabolic Responses To High Intensity Aerobic And Anaerobic Exercises, K. Mahoney, K. Beil, P. Messersmith, A. Parker, K. Jones, S. D. Mccole, J. A. Mckenzie May 2013

Metabolic Responses To High Intensity Aerobic And Anaerobic Exercises, K. Mahoney, K. Beil, P. Messersmith, A. Parker, K. Jones, S. D. Mccole, J. A. Mckenzie

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

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