School of Sport and Exercise, University of Gloucestershire, Oxstalls Campus, Oxstalls Lane, Gloucester, GL2 9HW, UK; School of Life and Medical Sciences, University of Hertfordshire, College Lane, Hatfield, Hertfordshire, AL10 9AB, UK.
School of Sport and Exercise, University of Gloucestershire, Oxstalls Campus, Oxstalls Lane, Gloucester, GL2 9HW, UK.
Phys Ther Sport. 2021 Jan;47:1-6. doi: 10.1016/j.ptsp.2020.10.005. Epub 2020 Oct 16.
To determine whether back foot (BF) position influences dorsiflexion range of motion (DFROM) during three different positions of the weight bearing lunge test (WBLT).
Randomised, repeated measures design.
Sports clubs.
52 athletes participating in cutting and pivoting sports.
DFROM was obtained using a WBLT in three different BF positions: BF heel in full contact with the floor, BF heel raised off the floor and BF was non weight bearing (NWB). All measurements were obtained using three methods: inclinometer at the tibial tuberosity, toe to wall distance and goniometer angle from the lateral malleolus to the fibula head. Differences between testing positions were determined using a repeated measures one-way ANOVA and reliability analysis was performed using the Intraclass Correlation Coefficient (ICC).
DFROM was statistically significantly different for all three positions of the WBLT for each measurement technique (P < .001). These results were associated with large effect sizes for all BF positions and measurement techniques. Reliability ICC values were excellent for all measurements (ICC 0.94-0.99).
Results show that DFROM differs depending upon the position of the BF during the WBLT. Further research is needed to establish the reproducibility of these three BF positions due to the variability observed.
确定在三种不同的负重弓步测试（WBLT）位置中，后脚（BF）位置是否会影响背屈活动范围（DFROM）。
随机、重复测量设计。
运动俱乐部。
52 名参加切割和枢轴运动的运动员。
使用 WBLT 在三种不同 BF 位置获得 DFROM：BF 脚跟完全接触地面、BF 脚跟离地和 BF 非承重（NWB）。所有测量均使用三种方法获得：胫骨结节测斜仪、足尖到墙的距离和从外踝到腓骨头的测角器角度。使用重复测量单向方差分析确定测试位置之间的差异，并使用组内相关系数（ICC）进行可靠性分析。
对于所有三种 WBLT 位置，所有测量技术的 DFROM 均存在统计学显著差异（P<.001）。这些结果与所有 BF 位置和测量技术的大效应量相关。所有测量的可靠性 ICC 值均为优秀（ICC 0.94-0.99）。
结果表明，DFROM 取决于 WBLT 中 BF 的位置。由于观察到的变异性，需要进一步研究以确定这三个 BF 位置的可重复性。
