Commercially available compression garments or electrical stimulation do not enhance recovery following a sprint competition in elite cross-country skiers |
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| Authors: | Andrew David Govus Erik Petrus Andersson Oliver Michael Shannon Holly Provis Mathilda Karlsson Kerry McGawley |
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| Institution: | 1. Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, ?stersund, Swedenandrew.govus@outlook.com;3. Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, ?stersund, Sweden;4. Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK |
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| Abstract: | This study investigated whether commercially available compression garments (COMP) exerting a moderate level of pressure and/or neuromuscular electrical stimulation (NMES) accelerate recovery following a cross-country sprint skiing competition compared with a control group (CON) consisting of active recovery only. Twenty-one senior (12 males, 9 females) and 11 junior (6 males, 5 females) Swedish national team skiers performed an outdoor sprint skiing competition involving four sprints lasting ～3–4 min. Before the competition, skiers were matched by sex and skiing level (senior versus junior) and randomly assigned to COMP (n?=?11), NMES (n?=?11) or CON (n?=?10). Creatine kinase (CK), urea, countermovement jump (CMJ) height, and perceived muscle pain were measured before and 8, 20, 44 and 68?h after competition. Neither COMP nor NMES promoted the recovery of blood biomarkers, CMJ or perceived pain post-competition compared with CON (all P?>?.05). When grouping all 32 participants, urea and perceived muscle pain increased from baseline, peaking at 8?h (standardised mean difference (SMD), 95% confidence intervals (CIs)]): 2.8 2.3, 3.2]) and 44?h (odds ratio 95% CI]: 3.3 2.1, 5.1]) post-competition, respectively. Additionally, CMJ was lower than baseline 44 and 68?h post-competition in both males and females (P?
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| Keywords: | Countermovement jump creatine kinase muscle damage performance urea |
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