Changes in autonomic control have been suggested to mediate postexercise hypotension (PEH). We investigated through meta-analysis the after-effects of acute resistance exercise (RE) on blood pressure (BP) and autonomic activity in individuals with normal and elevated BP. Electronic databases were searched for trials including: adults; exclusive RE interventions; and BP and autonomic outcomes measured pre- and postintervention for at least 30 min. Analyses incorporated random-effects assumptions. Thirty trials yielded 62 interventions (N = 480). Subjects were young (33.6 ± 15.6 yr), with systolic BP (SBP)/diastolic BP (DBP) of 124.2 ± 8.9/71.5 ± 6.6 mm Hg. Overall, RE moderately reduced SBP (normal BP: ~1 to 4 mm Hg, p < 0.01; elevated BP: ~1 to 12 mm Hg, p < 0.01) and DBP (normal BP: ~1 to 4 mm Hg, p < 0.03; elevated BP: ~0.5 to 7 mm Hg, p < 0.01), which was in general parallel to sympathetic increase (normal BP: g = 0.49 to 0.51, p < 0.01; elevated BP: g = 0.41 to 0.63, p < 0.01) and parasympathetic decrease (normal BP: g = −0.52 to −0.53, p < 0.01; elevated BP: g = −0.46 to −0.71, p < 0.01). The meta-regression showed inverse associations between the effect sizes of BP vs. sympathetic (SBP: slope − 0.19 to −3.45, p < 0.01; DBP: slope − 0.30 to −1.60, p < 0.01), and direct associations vs. parasympathetic outcomes (SBP: slope 0.17 to 2.59, p < 0.01; DBP: slope 0.21 to 1.38, p < 0.01). In conclusion, changes in BP were concomitant to sympathetic increase and parasympathetic decrease, which questions the role of autonomic fluctuations as potential mechanisms of PEH after RE.

自主神经控制的变化已被建议介导运动后低血压 (PEH)。我们通过荟萃分析调查了急性阻力运动 (RE) 对血压正常和血压升高个体的血压 (BP) 和自主神经活动的后遗症。电子数据库中的试验包括：成人；独家可再生能源干预；测量干预前后至少 30 分钟的血压和自主神经结果。分析纳入了随机效应假设。30 项试验产生了 62 项干预措施（N  = 480）。受试者年轻（33.6 ± 15.6 岁），收缩压（SBP）/舒张压（DBP）为 124.2 ± 8.9/71.5 ± 6.6 mm Hg。总体而言，RE 适度降低 SBP（正常血压：~1 至 4 毫米汞柱，p  < 0.01；血压升高：~1 至 12 毫米汞柱，p < 0.01) 和 DBP（正常血压：~1 至 4 毫米汞柱，p  < 0.03；血压升高：~0.5 至 7 毫米汞柱，p  < 0.01），这通常与交感神经增加平行（正常血压：g  = 0.49至 0.51，p  < 0.01；血压升高：g  = 0.41 至 0.63，p  < 0.01）和副交感神经降低（正常血压：g  = -0.52 至 -0.53，p  < 0.01；血压升高：g  = -0.46 至 -0.71，p  < 0.01)。元回归显示 BP与交感神经的效应大小之间呈负相关（SBP：斜率 - 0.19 至 -3.45，p  < 0.01；DBP：斜率 − 0.30 至 −1.60，p  < 0.01），以及直接关联与副交感神经结果（SBP：斜率0.17 至 2.59，p  < 0.01；DBP：斜率0.21 至 1.38，p  < 0.01）。总之，血压的变化伴随着交感神经的增加和副交感神经的减少，这对自主神经波动作为 RE 后 PEH 的潜在机制的作用提出了质疑。