Physiology Commons^™

Exercise Performance And Physiological Responses: The Potential Role Of Redox Imbalance, Kavey Vidal, Nathaniel Robinson, Stephen J. Ives

Health and Human Physiological Sciences

Increases in oxidative stress or decreases in antioxidant capacity, or redox imbalance, are known to alter physiological function and has been suggested to influence performance. To date, no study has sought to manipulate this balance in the same participants and observe the impact on physiological function and performance. Using a single-blind, placebo-controlled, and counterbalanced design, this study examined the effects of increasing free radicals, via hyperoxic exposure (FiO2 = 1.0), and/or increasing antioxidant capacity, through consuming an antioxidant cocktail (AOC; vitamin-C, vitamin-E, α-lipoic acid), on 5-kilometer (km) cycling time-trial performance, and the physiological and fatigue responses in healthy college-aged males. …

The Effect Of Concurrent Plyometric Training Versus Submaximal Aerobic Cycling On Rowing Economy, Peak Power, And Performance In Male High School Rowers, Julian D. Egan-Shuttler, Rohan Edmonds, Cassandra Eddy, Veronica O’Neill, Stephen J. Ives

Health and Human Physiological Sciences

BACKGROUND: Plyometric training has been shown to increase muscle power, running economy, and performance in athletes. Despite its use by rowing coaches, it is unknown whether plyometrics might improve rowing economy or performance. The purpose was to determine if plyometric training, in conjunction with training on the water, would lead to improved rowing economy and performance.

METHODS: Eighteen male high school rowers were assigned to perform 4 weeks of either plyometric training (PLYO, n = 9) or steady-state cycling below ventilatory threshold (endurance, E, n = 9), for 30 min prior to practice on the water (matched for training volume) …