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Dissociated time course of recovery between strength and power after isoinertial resistance loading in rugby union players.

Kennedy, Rodney and Drake, David (2018) Dissociated time course of recovery between strength and power after isoinertial resistance loading in rugby union players. Journal of Strength and Conditioning Research, 32 (3). pp. 748-755. [Journal article]

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URL: https://journals.lww.com/nsca-jscr/Fulltext/2018/03000/Dissociated_Time_Course_of_Recovery_Between.19.aspx

DOI: 10.1519/JSC.0000000000001821

Abstract

There is a substantial amount of research on the responses to isometric and eccentric loading. However, only a paucity of literature exists on the responses to isoinertial loading, especially in trained athletic populations using realistic loading protocols. The purpose of this study was to examine the acute neuromuscular response to a bout of isoinertial resistance loading in elite rugby players. Seventeen male (age: 19.5 ± 2.3 years) rugby union players performed a conventional maximal isoinertial resistance loading protocol. Countermovement jump (CMJ) and maximal voluntary isometric contraction (MVC) performance was measured on three occasions: at baseline, immediately post and 48h post. The results indicated that the decrease in MVC (9.7%) is greater than or comparable with the CMJ output variables (4.2-10.3%), immediately post exercise. Whilst isometric strength had demonstrated a full recovery at 48h post, many of the key CMJ output variables were still impaired (P < 0.05). Similar findings were observed in the normalised CMJ curves. Complete recovery of the ability to rapidly produced force may require more than 48h in many athletes. Individual responses should therefore be monitored to help plan acute and chronic training loads. It is recommended that future fatigue studies should incorporate temporal phase analyses to consider the power-, force-, velocity-, and displacement-time curves.

Item Type:Journal article
Keywords:athletes, resistance training, rest, sports
Faculties and Schools:Faculty of Life and Health Sciences > School of Sport
Faculty of Life and Health Sciences
ID Code:36996
Deposited By: Dr Rodney Kennedy
Deposited On:21 Feb 2017 09:59
Last Modified:01 Aug 2018 11:08

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