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Full-Text Articles in Sports Sciences

Body Composition, Physical Fitness, Functional Performance, Quality Of Life, And Fatigue Benefits Of Exercise For Prostate Cancer Patients: A Systematic Review, Justin W. L. Keogh, Roderick D. Macleod Sep 2012

Body Composition, Physical Fitness, Functional Performance, Quality Of Life, And Fatigue Benefits Of Exercise For Prostate Cancer Patients: A Systematic Review, Justin W. L. Keogh, Roderick D. Macleod

Justin Keogh

Context: Prostate cancer patients, especially those on androgen deprivation therapy (ADT), experience many symptoms that make it difficult to maintain their independence and quality of life. Because ADT acts by means of reducing testosterone production, exercise may offset many of the ADT side effects and those of the cancer itself.Objectives: This systematic review of the literature evaluates whether exercise could reduce symptoms and improve quality of life for prostate cancer patients.Methods: Using relevant databases and key words, 12 training studies were found meeting the inclusion and exclusion criteria.Results: Grade A level evidence was observed for the benefits of exercise in …


Interrelationships Between Strength, Anthropometrics, And Strongmen Performance In Novice Strongman Athletes, Paul W. Winwood, Justin W. L. Keogh, Nigel K. Harris Sep 2012

Interrelationships Between Strength, Anthropometrics, And Strongmen Performance In Novice Strongman Athletes, Paul W. Winwood, Justin W. L. Keogh, Nigel K. Harris

Justin Keogh

Winwood, PW, Keogh, JWL, Harris, NK, and Weaver, LM. Interrelationships between strength, anthropometrics, and strongman performance in novice strongman athletes. J Strength Cond Res 26(2): 513–522, 2012—The sport of strongman is relatively new; hence, specific research investigating this sport is currently very limited. The purpose of this study was to determine the relationships between anthropometric dimensions and maximal isoinertial strength to strongman performance in novice strongman athletes. Twenty-three semiprofessional rugby union players with considerable resistance training and some strongman training experience (age 22.0 ± 2.4 years, weight 102.6 ± 10.8 kg, height 184.6 ± 6.5 cm) were assessed for anthropometry …


Evidence For Biomechanics And Motor Learning Research Improving Golf Performance, Justin W. L. Keogh, Patricia A. Hume Sep 2012

Evidence For Biomechanics And Motor Learning Research Improving Golf Performance, Justin W. L. Keogh, Patricia A. Hume

Justin Keogh

The aim of this review was to determine how the findings of biomechanics and motor control/learning research may be used to improve golf performance. To be eligible, the biomechanics and motor learning studies had to use direct (ball displacement and shot accuracy) or indirect (clubhead velocity and clubface angle) golf performance outcome measures. Biomechanical studies suggested that reducing the radius path of the hands during the downswing, increasing wrist torque and/or range of motion, delaying wrist motion to late in the downswing, increasing downswing amplitude, improving sequential acceleration of body parts, improving weight transfer, and utilising X-factor stretch and physical …


Development Of A Clinical Multiple-Lunge Test To Predict Falls In Older Adults, Ruth Wagenaar, Justin W. Keogh, Denise Taylor Aug 2012

Development Of A Clinical Multiple-Lunge Test To Predict Falls In Older Adults, Ruth Wagenaar, Justin W. Keogh, Denise Taylor

Justin Keogh

Objective: To develop a new Multiple-Lunge Test to distinguish between fallers and nonfallers in community-dwelling older adults.Design: A cross-sectional design was used to establish the sensitivity and specificity of the test to predict faller status based on retrospective self-reported fall history. Setting: Local retirement villages.Participants: Community-dwelling older adults (N 130; mean age SD, 77 7y) with (n 40) and without (n 90) a history of falls.Interventions: The Multiple-Lunge Test required individuals to lunge forward to a step length determined as 60% of their leg length, and return to start, for 5 consecutive repetitions. Interday and intraday test-retest reliability of the …


A Biomechanical Comparison Of The Traditional Squat, Powerlifting Squat, And Box Squat, Paul Swinton, Ray Lloyd, Justin Keogh, Ioannis Agouris, Arthur Stewart Jul 2012

A Biomechanical Comparison Of The Traditional Squat, Powerlifting Squat, And Box Squat, Paul Swinton, Ray Lloyd, Justin Keogh, Ioannis Agouris, Arthur Stewart

Justin Keogh

Swinton, PA, Lloyd, R, Keogh, JWL, Agouris, I, and Stewart, AD. A biomechanical comparison of the traditional squat, powerlifting squat, and box squat. J Strength Cond Res 26(7): 1805–1816, 2012. The purpose of this study was to compare the biomechanics of the traditional squat with 2 popular exercise variations commonly referred to as the powerlifting squat and box squat. Twelve male powerlifters performed the exercises with 30, 50, and 70% of their measured 1 repetition maximum (1RM), with instruction to lift the loads as fast as possible. Inverse dynamics and spatial tracking of the external resistance were used to quantify …


Effects Of Two Contrast Training Programs On Jump Performance In Rugby Union Players During A Competition Phase, Christos K. Argus, Nicholas D. Gill, Justin W. L. Keogh, Michael R. Mcguigan, Will G. Hopkins Feb 2012

Effects Of Two Contrast Training Programs On Jump Performance In Rugby Union Players During A Competition Phase, Christos K. Argus, Nicholas D. Gill, Justin W. L. Keogh, Michael R. Mcguigan, Will G. Hopkins

Justin Keogh

Purpose: There is little literature comparing contrast training programs typically performed by team-sport athletes within a competitive phase. We compared the effects of two contrast training programs on a range of measures in high-level rugby union players during the competition season.

Methods: The programs consisted of a higher volume-load (strength-power) or lower volume-load (speed-power) resistance training; each included a tapering of loading (higher force early in the week, higher velocity later in the week) and was performed twice a week for 4 wk. Eighteen players were assessed for peak power during a bodyweight countermovement jump (BWCMJ), bodyweight squat …