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Lookup NU author(s): Simon Patterson, Dr Owen JeffriesORCiD
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
Objectives: The aim of this investigation was to determine if acute or repeated applications of ischemic preconditioning (IPC) could enhance the recovery process, following exercise induced muscle damage (EIMD). Design: Randomized control trial. Methods: Twenty-three healthy males were familiarised with the muscle damaging protocol (five sets of 20 drop jumps from a 0.6 m box) and randomly allocated to one of three groups: SHAM (3 x 5 min at 20 mmHg), Acute IPC (3 x 5 min at 220 mmHg) and Repeated IPC (3 days x 3 x 5 min at 220 mmHg). The indices of muscle damage measured included creatine kinase concentration ([CK]), thigh swelling, delayed onset muscle soreness, counter movement jumps (CMJ) and maximal voluntary isometric contraction (MVIC). Results: Both acute and repeated IPC improved recovery in MVIC versus SHAM. Repeated IPC led to a faster MVIC recovery at 48 h (101.5%) relative to acute IPC (92.6%) and SHAM (84.4%) (P < 0.05). Less swelling was found for both acute and repeated IPC vs. SHAM (P < 0.05) but no group effects were found for CMJ, soreness or [CK] responses (P > 0.05). Conclusion: Taken together, repeated IPC can enhance recovery time of MVIC more than an acute application, and both reduce swelling following EIMD, relative to a SHAM condition.
Author(s): Patterson SD, Swan R, Page W, Marocolo M, Jeffries O, Waldron M
Publication type: Article
Publication status: Published
Journal: Journal of Science and Medicine in Sport
Year: 2021
Volume: 24
Issue: 7
Pages: 709-714
Print publication date: 01/07/2021
Online publication date: 23/02/2021
Acceptance date: 15/02/2021
Date deposited: 18/02/2021
ISSN (print): 1440-2440
ISSN (electronic): 1878-1861
Publisher: Elsevier Australia
URL: https://doi.org/10.1016/j.jsams.2021.02.012
DOI: 10.1016/j.jsams.2021.02.012
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