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独特加工钛对健康老年人平衡能力和步行表现的影响。

The Effects of Uniquely-Processed Titanium on Balance and Walking Performance in Healthy Older Adults.

作者信息

Black Melissa J, Lucero Adam A, Fink Philip W, Stoner Lee, Shultz Sarah P, Lark Sally D, Rowlands David S

机构信息

School of Sport, Exercise and Nutrition, Massey University, Wellington 6021, New Zealand.

Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC 27514, USA.

出版信息

J Funct Biomater. 2018 Jun 8;9(2):39. doi: 10.3390/jfb9020039.

Abstract

The increased risk of falls associated with advancing age has increased demand for methods to improve balance and mobility. The primary purpose of the study was to determine whether wearing Aqua Titan-treated stockings could improve balance and walking performance in an older population; secondary was to elucidate the mechanisms. In a randomized, double-blind crossover, 16 healthy older adults (age, 67.9 ± 4.2 years; BMI, 24.8 ± 3.1 kg/m²) performed two 4-day trials composed of baseline measures and fatiguing exercise on Day 1, with recovery measures at 14, 38 and 62 h post-exercise, wearing Aqua Titan and control stockings. Balance, walking performance, triceps surae stretch reflex, ankle range of motion and gastrocnemius muscle microvascular perfusion, blood flow and oxygen consumption were measured at baseline and during recovery. Aqua Titan had no effect on the microvascular parameters, but increased total ankle range of motion at 38 h (2.4°; 95% CI ± 1.8°) and 62 h (2.7°; ±1.7°), contributed to by increases in dorsiflexion and plantar flexion. There was decreasing persistence in the medial-lateral center of pressure movement at 38 h (q = 0, −0.0635 ± 0.0455), compared to control stockings. Aqua Titan garments hold potential for improving balance and mobility in older adults in the days following a bout of fatiguing exercise. The proposed mechanisms associated with enhanced sensory feedback require further exploration.

摘要

随着年龄增长,跌倒风险增加,因此对改善平衡和活动能力方法的需求也日益增长。本研究的主要目的是确定穿着经Aqua Titan处理的长袜是否能改善老年人群的平衡和行走能力;其次是阐明其机制。在一项随机、双盲交叉试验中,16名健康老年人(年龄67.9±4.2岁;体重指数24.8±3.1kg/m²)进行了两项为期4天的试验,试验第1天包括基线测量和疲劳运动,在运动后14、38和62小时进行恢复测量,分别穿着Aqua Titan长袜和对照长袜。在基线和恢复期间测量平衡、行走能力、小腿三头肌牵张反射、踝关节活动范围以及腓肠肌微血管灌注、血流量和氧消耗。Aqua Titan对微血管参数没有影响,但在38小时(2.4°;95%置信区间±1.8°)和62小时(2.7°;±1.7°)时增加了总踝关节活动范围,这是由背屈和跖屈增加所致。与对照长袜相比,在38小时时,Aqua Titan长袜使内外侧压力中心移动的持续性降低(q=0,−0.0635±0.0455)。在进行一轮疲劳运动后的几天里,Aqua Titan服装在改善老年人平衡和活动能力方面具有潜力。与增强感觉反馈相关的推测机制需要进一步探索。

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