Lockie Robert G, Schultz Adrian B, Callaghan Samuel J, Jeffriess Matthew D
Exercise and Sport Science Department, School of Environmental and Life Sciences, University of Newcastle, Ourimbah, Australia.
J Strength Cond Res. 2016 Nov;30(11):3033-3043. doi: 10.1519/JSC.0b013e3182a744b6.
Lockie, RG, Schultz, AB, Callaghan, SJ, and Jeffriess, MD. The relationship between dynamic stability and multidirectional speed. J Strength Cond Res 30(11): 3033-3043, 2016-Dynamic stability is said to contribute to multidirectional (linear and change-of-direction) speed, although little research confirms this. This study analyzed the relationship between dynamic stability as measured by lower-limb functional reaching in 6 directions (anterolateral, lateral, posterolateral, posteromedial, medial, and anteromedial) within a modified star excursion balance test and multidirectional speed (40-m sprint: 0-10, 0-20, and 0-40 m intervals; T-test; change-of-direction and acceleration test [CODAT]). Sixteen male field sport athletes (age, 23.31 ± 5.34 years; height, 1.78 ± 0.07 m; mass, 80.60 ± 9.89 kg) completed testing. A 1-way analysis of variance determined significant (p ≤ 0.05) differences in excursions between faster and slower subjects. All data were pooled for a Spearman's correlation analysis (p ≤ 0.05). Faster subjects had greater left leg medial reach (76.24 ± 5.33 vs. 65.94 ± 10.75%), right leg posteromedial reach (85.20 ± 8.07 vs. 73.59 ± 12.64%), and a smaller between-leg difference in lateral reach (2.26 ± 1.85 vs. 6.46 ± 4.29%). Longer reach distances (greater dynamic stability) correlated with faster speed test times (ρ = -0.499 to 0.664). Dynamic stability relationships were pronounced for the change-of-direction speed tests. For example, smaller between-leg excursion differences in anterolateral, lateral, posterolateral, and posteromedial reaches related to faster T-test and CODAT times (ρ = 0.502-0.804). There is a relationship between dynamic stability as measured by functional reaching and multidirectional speed in field sport athletes, possibly because of similarities in movement demands and muscle recruitment. Dynamic stability training could strengthen muscles for multidirectional sprinting and develop functional joint motion.
洛基、RG、舒尔茨、AB、卡拉汉、SJ和杰弗里斯、医学博士。动态稳定性与多向速度之间的关系。《力量与体能研究杂志》30(11): 3033 - 3043, 2016年——尽管很少有研究证实这一点，但据说动态稳定性有助于多向（直线和变向）速度。本研究分析了在改良的星形偏移平衡测试中通过6个方向（前外侧、外侧、后外侧、后内侧、内侧和前内侧）的下肢功能性伸展测量的动态稳定性与多向速度（40米短跑：0 - 10米、0 - 20米和0 - 40米区间；T字测试；变向和加速测试[CODAT]）之间的关系。16名男性田径运动员（年龄，23.31±5.34岁；身高，1.78±0.07米；体重，80.60±9.89千克）完成了测试。单向方差分析确定了速度较快和较慢的受试者在偏移量上存在显著（p≤0.05）差异。所有数据汇总进行斯皮尔曼相关性分析（p≤0.05）。速度较快的受试者左腿内侧伸展更大（76.24±5.33对65.94±10.75%），右腿后内侧伸展更大（85.20±8.07对73.59±12.64%），且两腿外侧伸展之间的差异更小（2.26±1.85对6.46±4.29%）。伸展距离更长（动态稳定性更高）与速度测试时间更快相关（ρ=-0.499至0.664）。动态稳定性关系在变向速度测试中更为明显。例如，前外侧、外侧、后外侧和后内侧伸展中两腿之间的偏移差异较小与T字测试和CODAT时间更快相关（ρ=0.502 - 0.804）。在田径运动员中，通过功能性伸展测量的动态稳定性与多向速度之间存在关系，可能是因为运动需求和肌肉募集方面的相似性。动态稳定性训练可以增强用于多向短跑的肌肉力量并发展功能性关节运动。
