Adrenal cortical responses to high-intensity, short rest, resistance exercise in men and women

Journal of Strength and Conditioning Research
Tunde K SzivakWilliam J Kraemer

Abstract

Commercial high-intensity, short rest (HI/SR) protocols have been anecdotally postured to be extremely demanding. However, limited prior studies have demonstrated HI/SR protocols to produce hyperreactions in metabolic and adrenal function; thus, the purpose of this study was to evaluate the physiological effects of an acute, high-intensity (75% 1-repetition maximum), short rest resistance exercise protocol. Nine trained men (age: 23.5 ± 3.5 years, height: 172.4 ± 4.0 cm, weight: 77.8 ± 8.8 kg) and 9 trained women (age: 22.9 ± 2.0 years, height: 168.4 ± 9.4 cm, weight: 68.5 ± 10.4 kg) participated in the HI/SR protocol, which consisted of a descending pyramid scheme of back squat, bench press, and deadlift, beginning with 10 repetitions of each, then 9, then 8, and so on until 1 repetition on the final set. Significant time effects were observed in lactate (immediate post [IP], +15, +60) and cortisol (IP, +15, +60) response. Significant sex effects were observed in lactate response (IP, +15) but not in cortisol response. Total work was higher in men and influenced magnitude of increase in lactate but not cortisol. No significant sex differences were noted in time to completion, average relative intensity, heart rate response or ...Continue Reading

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Citations

Sep 30, 2014·Acta Psychologica·Lisa WeinbergAudrey Duarte
Feb 10, 2018·Stroke Research and Treatment·Bruno Bavaresco GambassiBruno Rodrigues
Oct 28, 2015·Journal of Strength and Conditioning Research·Tunde K Szivak, William J Kraemer
Jun 4, 2020·The Journal of Sports Medicine and Physical Fitness·Pedro O LimaRodrigo R Oliveira
Aug 14, 2015·Journal of Strength and Conditioning Research·Adam J SterczalaWilliam J Kraemer
Apr 18, 2017·Journal of Strength and Conditioning Research·Andrew R JagimJonathan M Oliver
Oct 4, 2020·International Journal of Environmental Research and Public Health·Emanuela FaelliPiero Ruggeri
Dec 4, 2020·PloS One·João Henrique GomesLucindo José Quintans-Júnior

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