Department of Physical Therapy, New York Institute of Technology, Old Westbury, New York, USA.
J Strength Cond Res. 2011 Dec;25(12):3299-305. doi: 10.1519/JSC.0b013e318215fa07.
Douris, PC, Handrakis, JP, Gendy, J, Salama, M, Kwon, D, Brooks, R, Salama, N, and Southard, V. Fatiguing upper body aerobic exercise impairs balance. J Strength Cond Res 25(12): 3299-3305, 2011-There are many studies that have examined the effects of selectively fatiguing lower extremity muscle groups with various protocols, and they have all shown to impair balance. There is limited research regarding the effect of fatiguing upper extremity exercise on balance. Muscle fiber-type recruitment patterns may be responsible for the difference between balance impairments because of fatiguing aerobic and anaerobic exercise. The purpose of our study was to investigate the effect that aerobic vs. anaerobic fatigue, upper vs. lower body fatigue will have on balance, and if so, which combination will affect balance to a greater degree. Fourteen healthy subjects, 7 men and 7 women (mean age 23.5 ± 1.7 years) took part in this study. Their mean body mass index was 23.6 ± 3.2. The study used a repeated-measures design. The effect on balance was documented after the 4 fatiguing conditions: aerobic lower body (ALB), aerobic upper body (AUB), anaerobic lower body, anaerobic upper body (WUB). The aerobic conditions used an incremental protocol performed to fatigue, and the anaerobic used the Wingate protocol. Balance was measured as a single-leg stance stability score using the Biodex Balance System. A stability score for each subject was recorded immediately after each of the 4 conditions. A repeated-measures analysis of variance with the pretest score as a covariate was used to analyze the effects of the 4 fatiguing conditions on balance. There were significant differences between the 4 conditions (p = 0.001). Post hoc analysis revealed that there were significant differences between the AUB, mean score 4.98 ± 1.83, and the WUB, mean score 4.09 ± 1.42 (p = 0.014) and between AUB and ALB mean scores 4.33 ± 1.40 (p = 0.029). Normative data for single-leg stability testing for this age group are 3.9 ± 1.9. Higher scores reflect greater balance deficits. The AUB condition produced the greatest balance deficit. Our data provide evidence of the important role of the upper body in maintaining unilateral standing balance and supports its inclusion as part of rehabilitation and training protocols designed to improve balance.
多里斯、PC、汉德拉基斯、JP、根迪、J、萨拉马、M、权、D、布鲁克斯、R、萨拉马、N 和萨瑟德，V. 上半身有氧疲劳会影响平衡。J 力量与调理研究 25（12）：3299-3305，2011 年-有许多研究检查了使用各种方案选择性疲劳下肢肌肉群的影响，所有这些研究都表明会影响平衡。关于疲劳上肢运动对上肢平衡的影响，研究有限。肌肉纤维型募集模式可能是由于疲劳有氧和无氧运动导致平衡受损的原因。我们研究的目的是调查有氧与无氧疲劳、上半身与下半身疲劳对上平衡的影响，如果有影响，哪种组合会对平衡产生更大的影响。14 名健康受试者，7 名男性和 7 名女性（平均年龄 23.5 ± 1.7 岁）参加了这项研究。他们的平均体重指数为 23.6 ± 3.2。该研究采用重复测量设计。在 4 种疲劳条件下记录对平衡的影响：有氧下半身（ALB）、有氧上半身（AUB）、无氧下半身、无氧上半身（WUB）。有氧条件使用递增方案进行疲劳，无氧条件使用温盖特方案。平衡使用 Biodex 平衡系统的单腿站立稳定性评分来测量。在每个条件之后，每个受试者的稳定性评分都有记录。使用重复测量方差分析，以预测试得分作为协变量，分析 4 种疲劳条件对平衡的影响。4 种条件之间存在显著差异（p = 0.001）。事后分析显示，AUB 与 WUB 之间存在显著差异，平均得分 4.98 ± 1.83 与 4.09 ± 1.42（p = 0.014），AUB 与 ALB 之间存在显著差异，平均得分 4.33 ± 1.40（p = 0.029）。该年龄组单腿稳定性测试的正常数据为 3.9 ± 1.9。得分越高，平衡缺陷越大。AUB 条件产生的平衡缺陷最大。我们的数据提供了上肢在维持单侧站立平衡方面的重要作用的证据，并支持将其纳入旨在改善平衡的康复和训练方案中。
