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Sports Sciences

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Selected Works

Justin Keogh

Exercise and Sports Biomechanics

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Articles 1 - 4 of 4

Full-Text Articles in Medicine and Health Sciences

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 …


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 …


A Brief Description Of The Biomechanics And Physiology Of A Strongman Event: The Tire Flip, Justin W.L. Keogh, Amenda L. Payne, Brad B. Anderson, Paul J. Atkins Apr 2010

A Brief Description Of The Biomechanics And Physiology Of A Strongman Event: The Tire Flip, Justin W.L. Keogh, Amenda L. Payne, Brad B. Anderson, Paul J. Atkins

Justin Keogh

The purpose of this study was to (a) characterize the temporal aspects of a popular strongman event, the tire flip; (b) gain some insight into the temporal factors that could distinguish the slowest and fastest flips; and (c) obtain preliminary data on the physiological stress of this exercise. Five resistance-trained subjects with experience in performing the tire flip gave informed consent to participate in this study. Each subject performed 2 sets of 6 tire flips with a 232-kg tire with 3 minutes of rest between sets. Temporal variables were obtained from video cameras positioned 10 m from the tire, perpendicular …