Effect of fitness level on time course of recovery after acute strength and high-intensity interval training
Author Identifier
Maria Grammenou: https://orcid.org/0000-0002-7545-7270
Kristina L. Kendall: https://orcid.org/0000-0001-6872-7335
Cody J. Wilson: https://orcid.org/0000-0001-6310-8471
Tenielle Porter: https://orcid.org/0000-0002-7887-6622
Simon M. Laws: https://orcid.org/0000-0002-4355-7082
G. Gregory Haff: https://orcid.org/0000-0002-0676-7750
Document Type
Journal Article
Publication Title
Journal of Strength and Conditioning Research
Volume
38
Issue
12
First Page
2055
Last Page
2064
Publisher
National Strength and Conditioning Association
School
Centre for Precision Health / School of Medical and Health Sciences
RAS ID
77139
Funders
Australian Government Higher Degree by Research Scholarship
Abstract
Grammenou, M, Kendall, KL, Wilson, CJ, Porter, T, Laws, SM, and Haff, GG. Effect of fitness level on time course of recovery after acute strength and high-intensity interval training. J Strength Cond Res 38(12): 2055–2064, 2024—The aim was to investigate time course of recovery after acute bouts of strength (STR) and high-intensity interval training (HIIT). A secondary goal was to assess the influence of total fitness score (TFS), composed of handgrip strength and maximum aerobic power on recovery. Twenty-eight resistance-trained individuals completed 8 testing sessions within a 14- to 17-day period. Subjects performed a testing battery comprising isometric midthigh pull (IMTP), countermovement jump (CMJ), and a modified Wingate test (WINmod) at baseline, immediately after exercise, as well as at 6 and 24 hours after the training sessions. A one-way ANOVA was performed to examine time changes after the training sessions. Subjects were then grouped based on their TFS in high, medium, and low groups. To examine the influence of TFS on time course of recovery, we performed a linear mixed-effects model. Statistical significance was set at p, 0.05. Both training sessions resulted in a significant reduction in peak force (PF) that persisted for up to 6 (p, 0.05) and 24 hours (p, 0.001). The STR session showed immediate and 24-hour postexercise declines in jump height and reactive strength index modified (RSImod) compared with baseline. The low TFS group exhibited a significant RSImod reduction immediately after HIIT (p, 0.001), compared with the medium TFS group (p 5 0.0002). In the STR session, the high TFS group displayed an increased eccentric displacement during CMJ 24 hours after exercise compared with baseline (p 5 0.033). Overall, subjects with high TFS may be able to recover CMJ performance at the same rate as other TFS groups, despite performing more work.
DOI
10.1519/JSC.0000000000004924
Access Rights
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Comments
Grammenou, M., Kendall, K. L., Wilson, C. J., Porter, T., Laws, S. M., & Haff, G. G. (2024). Effect of fitness level on time course of recovery after acute strength and high-intensity interval training. The Journal of Strength & Conditioning Research, 38(12), 2055-2064. https://doi.org/10.1519/JSC.0000000000004924