Angelakos Ioannis, Mills Chris, O'Halloran Joseph
School of Sport, Health and Exercise Sciences, University of Portsmouth, Portsmouth, UK.
J Hum Kinet. 2020 Jan 31;71:59-68. doi: 10.2478/hukin-2019-0074. eCollection 2020 Jan.
Compression garments have been used to minimise injury risk, through improvements in stability and joint positioning; yet, it is unclear whether there is an optimal length or tightness of these garments that may maximise observed benefits. This study measured the effect of three different garment types, at two different tightness levels, on lower extremity stability and alignment during a forward lunge movement. Sixteen healthy adults (7 female, 9 male; 24.3 ± 2.9 years) were recruited as participants. Stability of the lead foot, as well as lower body joint kinematics, were recorded using an Oqus 12-camera system, surrounding participants as they executed three forward lunges onto a Matscan pressure mat under seven compression conditions (Control, Light/Heavy Calf, Light/Heavy Socks, Light/Heavy Leggings). Mean minimum time-to-boundary (mmTtB) (derived from centre of pressure measures) and frontal plane kinematics (lateral pelvic tilt, knee valgus, ankle inversion/eversion) were used to assess the effect of garment tightness and length on lunge stability and joint alignment, respectively. A significant effect of tightness on mmTtB was observed (F = 8.192; p = .005, η = .072), with Heavy garments eliciting longer mmTtB compared to their corresponding Light (-.18 ± .06 s; p = .015) or Control (-.28 ± .09 s; p = .007) conditions. No significant effects of garment tightness or length on lower body kinematics were evident. The results of this study suggest stability during a forward lunge is improved through the use of tight-fitted compression garments.
压缩衣物已被用于通过改善稳定性和关节位置来降低受伤风险；然而，尚不清楚这些衣物是否存在能使观察到的益处最大化的最佳长度或紧度。本研究测量了三种不同类型的衣物，在两种不同紧度水平下，对前弓步动作中下肢稳定性和对线的影响。招募了16名健康成年人（7名女性，9名男性；24.3±2.9岁）作为参与者。在参与者在Matscan压力垫上进行三次前弓步动作时，使用Oqus 12相机系统记录主导脚的稳定性以及下半身关节运动学数据，该系统环绕着参与者，共设置了七种压缩条件（对照组、轻/重小腿压缩衣物、轻/重袜子、轻/重紧身裤）。平均最小边界时间（mmTtB）（由压力中心测量得出）和额面运动学数据（骨盆侧倾、膝外翻、踝关节内翻/外翻）分别用于评估衣物紧度和长度对弓步稳定性和关节对线的影响。观察到紧度对mmTtB有显著影响（F = 8.192；p = 0.005，η = 0.072），与相应的轻压缩衣物条件（-.18±0.06秒；p = 0.015）或对照组条件（-.28±0.09秒；p = 0.007）相比，重压缩衣物产生的mmTtB更长。衣物紧度或长度对下半身运动学数据没有明显的显著影响。本研究结果表明，通过使用紧身压缩衣物可改善前弓步动作中的稳定性。
