Whole Body Periodic Acceleration Improves Muscle Recovery after Eccentric Exercise

被引:11
|
作者
Rafael Lopez, Jose [1 ,2 ]
Mijares, Alfredo [2 ]
Kolster, Juan [3 ]
Henriquez-Olguin, Carlos [4 ]
Zhang, Rui [1 ]
Altamirano, Francisco [1 ]
Adams, Jose Antonio [5 ]
机构
[1] Univ Calif Davis, Sch Vet Med, Dept Mol Biosci, Davis, CA 95616 USA
[2] Venezuelan Inst Sci Res, Dept Biophys & Biochem, Caracas, Venezuela
[3] Biomed Res Ctr, Mexico City, DF, Mexico
[4] Univ Chile, Sch Med, Ctr Mol Studies Cell, Santiago, Chile
[5] Mt Sinai Med Ctr, Div Neonatol, Miami, FL USA
来源
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE | 2016年 / 48卷 / 08期
关键词
NITRIC OXIDE; PROINFLAMMATORY CYTOKINES; CALCIUM OVERLOAD; SODIUM OVERLOAD; MUSCLE DAMAGE; NITRIC-OXIDE SYNTHASE; SKELETAL-MUSCLE; MUSCULAR-DYSTROPHY; SATELLITE CELLS; CROSS-TALK; DAMAGE; SORENESS; HUMANS; CONTRACTION; CALCIUM;
D O I
10.1249/MSS.0000000000000932
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
Introduction: The aim of this study was to determine whether whole body periodic acceleration (pGz) could improve muscle recovery after unaccustomed eccentric exercise (EE). Methods: Downhill treadmill running was used to elicit EE-induced muscle damage in mice, and pGz treatment (480 cycles per minute, 1 h.d(-1)) was applied daily for 10 d after the initial EE bout (day 0). Every 2 d during the pGz treatment course starting at day 0, we 1) assessed intracellular Ca2+ and Na+ concentrations and membrane potential (as indicators of intracellular ion dysfunction) in vivo in gastrocnemius muscle from anesthetized animals and 2) quantified creatine kinase (CK), tumor necrosis factor alpha (TNF-alpha), monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6), and interleukin-10 (IL-10) concentrations in plasma or muscle lysates (as indicators of muscle damage and inflammation). Results: EE significantly increased intracellular Ca2+ and Na+, CK, TNF-alpha, MCP-1, IL-6, and IL-10, all of which peaked on day 2 with the exception of IL-10 and declined slowly over 10 d of recovery. pGz treatment after the EE bout mitigated ion dyshomeostasis and expedited recuperation to control values after 6 d of treatment. pGz treatment also accelerated the normalization of CK, TNF-alpha, MCP-1, and IL-6 while further increasing IL-10 concentrations. The nitric oxide synthase inhibitor L-N-G-nitroarginine methyl ester, administered in drinking water before and maintained throughout the treatment course, was sufficient to abrogate the salutary effects of pGz after EE. Conclusions: The present study demonstrates whole body periodic acceleration as an effective therapeutic strategy to accelerate muscle recovery after EE-induced skeletal muscle injury, as indicated by a faster normalization of all the studied parameters.
引用
收藏
页码:1485 / 1494
页数:10
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