Sensory, functional and electromyographic variables show different recovery patterns over a seven day period following exercise-induced pain in the hamstrings.

Autor: Bellosta-López P; Department of Physiotherapy, Faculty of Health Sciences, Universidad San Jorge, 50830 Villanueva de Gállego, Zaragoza, Spain., Doménech-García V; Department of Physiotherapy, Faculty of Health Sciences, Universidad San Jorge, 50830 Villanueva de Gállego, Zaragoza, Spain. Electronic address: vdomenech@usj.es., Palsson TS; Department of Physiotherapy and Occupational Therapy, Aalborg University Hospital, Aalborg, Denmark., Pessoto-Hirata R; Sport Sciences - Performance and Technology, Department of Health Science and Technology Aalborg University, Niels Jernes Vej 12, 9220 Aalborg East, Denmark.
Jazyk: angličtina
Zdroj: Clinical biomechanics (Bristol, Avon) [Clin Biomech (Bristol, Avon)] 2023 Aug; Vol. 108, pp. 106062. Date of Electronic Publication: 2023 Aug 09.
DOI: 10.1016/j.clinbiomech.2023.106062
Abstrakt: Background: Delayed-onset muscle soreness (DOMS) is common after unaccustomed exercises and can restrict performance if intense physical activities are performed while the muscle is still sore. This study aimed to evaluate the recovery process following exercise-induced DOMS over a seven-day period by evaluating sensory, functional, and electromyographic parameters.
Methods: Twenty-four healthy males participated in four experimental sessions (Day-0, Day-2, Day-4, Day-7). Pain perception, pressure pain sensitivity, active range of motion, maximal isometric strength, and muscle activity of the hamstrings during the maximal isometric contraction were assessed bilaterally at each session. A single-leg deadlift eccentric exercise (5-sets of 20-reps) was performed at the end of Day-0 to induce DOMS in the dominant leg.
Findings: At Day-2, the DOMS-side showed increased pain sensitivity and decreased active range of motion, strength and muscle activity compared to Day-0 (P < 0.015). Muscle activity on the DOMS-side reached similar values than at baseline on Day-4, whereas pain perception, pressure pain sensitivity, maximal isometric strength, and active range of motion had returned to the baseline state on Day-7. No changes over time were observed on the control-side, showing all variables an excellent reliability between values at Day-0 and Day-7 (Intraclass Correlation Coefficient > 0.90).
Interpretation: Surface electromyographic values during a maximal isometric contraction recover faster than the other parameters. Given the heterogeneous path of altered variables towards DOMS recovery, trainers and clinicians should consider a multimodal assessment, including quantitative sensory and functional measures in addition to the subjective perception of recovery.
Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests. Pablo Bellosta-Lopez reports a relationship with Government of Aragón that includes: funding grants.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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