Spinal Manipulative Therapy Effects in Autonomic Regulation and Exercise Performance in Recreational Healthy Athletes : A Randomized Controlled Trial
Authors
Germain Martínez, Francisco JoséIdentifiers
Permanent link (URI): http://hdl.handle.net/10017/59623DOI: 10.1097/BRS.0000000000002908
ISSN: 0362-2436
Date
2019-05-01Bibliographic citation
Spine, 2019, v. 44, n. 9, p. 609-614
Keywords
Athletes
Chiropractic
Cycling
Endurance
Fatigue
Handgrip
Heart rate variability
Musculoskeletal manipulation
Neural drive
Sport
Strength
Description / Notes
7 p.
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/acceptedVersion
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Access rights
info:eu-repo/semantics/openAccess
Abstract
Study design: A randomized, double blind, parallel groups, sham-controlled trial. Objective: The aim of this study was to analyze the acute effects of spinal manipulative therapy (SMT) on performance and autonomic modulation. Summary of background data: The use of SMT is progressively spreading from the clinical to the sporting context owing to its purported ergogenic effects. However, its effects remain unclear. Methods: Thirty-seven male recreational athletes (aged 37 ± 9 years) who had never received SMT were assigned to a sham (n = 19) or actual SMT group (n = 18). Study endpoints included autonomic modulation (heart rate variability), handgrip strength, jumping ability, and cycling performance [8-minute time trial (TT)]. Differences in custom effects between interventions were determined using magnitude-based inferences. Results: A significant and very likely lower value of a marker of sympathetic modulation, the stress score, was observed in response to actual compared with sham SMT [P = 0.007; effect size (ES) = -0.97]. A trend toward a significant and likely lower sympathetic:parasympathetic ratio (P = 0.055; ES = -0.96) and a likely higher natural logarithm of the root-mean-square differences of successive heartbeat intervals [(LnRMSSD), P = 0.12; ES = 0.36] was also found with actual SMT. Moreover, a significantly lower mean power output was observed during the TT with actual compared with sham SMT (P = 0.035; ES = -0.28). Nonsignificant (P > 0.05) and unclear or likely trivial differences (ES < 0.2) were found for the rest of endpoints, including handgrip strength, heart rate during the TT, and jump loss thereafter. Conclusion: A single pre-exercise SMT session induced an acute shift toward parasympathetic dominance and slightly impaired performance in recreational healthy athletes.
Files in this item
Files | Size | Format |
|
---|---|---|---|
spinal_valenzuela_SPINE_2019.pdf | 898.2Kb |
|
Files | Size | Format |
|
---|---|---|---|
spinal_valenzuela_SPINE_2019.pdf | 898.2Kb |
|
Collections
- FISIOLOG - Artículos [87]