Acute effects of the resistance exercise associated with different blood flow restriction pressures on bone remodeling biomarkers.

Autor:	Copatti SL; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., Bonorino SL; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., da Costa Copatti A; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., Saretto CB; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., Grossl FS; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., Da Silva-Grigoletto ME; Department of Physical Education, Center of Biological and Health Sciences, Federal University of Sergipe, Brazil., da Silva Corralo V; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil., De Sá CA; Health Science Postgraduate Program, School of Heath, Unochapecó University, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of exercise science and fitness [J Exerc Sci Fit] 2022 Apr; Vol. 20 (2), pp. 155-160. Date of Electronic Publication: 2022 Mar 08.
DOI:	10.1016/j.jesf.2022.02.005
Abstrakt:	Background: The present study analyzed the acute responses of parathyroid hormone (PTH) and bone-specific alkaline phosphatase (BSAP) to the low-intensity resistance exercise with blood flow restriction using different occlusion pressures. Methods: Twelve women completed the three protocols of this crossover study: resistance exercise without blood flow restriction (RE), resistance exercise with blood flow restriction and occlusion pressure corresponding to 70% of systolic blood pressure (RE + BFR70), and resistance exercise with blood flow restriction and occlusion pressure corresponding 130% of systolic blood pressure (RE + BFR130). All exercises were performed in a guided squat apparatus with load corresponded to 30% of one-repetition maximum test. Results: Relative to resting levels, PTH concentrations decreased significantly ( p  = .000) post-exercise in all groups and increased significantly ( p  = .000) 15 min post-exercise in RE + BFR70 and RE + BFR130 groups; PTH concentrations returned to resting levels after the 30-min recovery period in all groups. There was no significant difference ( p >.05) between BSAP values at rest and 30 min post-exercise. Conclusion: In conclusion, our results showed that protocols with blood flow restriction using occlusion pressures equivalent to 70% and 130% of systolic blood pressure were more effective than RE alone to induce PTH peaks, and to promote a metabolic condition favorable to bone anabolism. Competing Interests: There is no conflict of interests. (© 2022 The Society of Chinese Scholars on Exercise Physiology and Fitness. Published by Elsevier (Singapore) Pte Ltd.)
Databáze:	MEDLINE
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