Supplementary Table 1

the right hip joint was extended on the sagittal plane to measure hip extension RoM at 15° of hip abduction. By referring the moment used for passive knee extension RoM measurement (Kaneguchi et al., 2017a), hip extension moments of 7.5, 15, and 22.5 N•mm (approximately 50%, 100%, and 150% of knee extension moment) were applied by pushing the point in the thigh 3 cm distal to the greater trochanter with forces of 0.25, 0.5, and 0.75 N using a force gauge (AD-4932A-50N; A&D, Tokyo, Japan) in a stepwise manner (Supplement Fig. 1B)[小澤 淳也1] [南本2] . To evaluate the contribution of each muscle to myogenic contracture, hip extension RoM was measured after serial myotomy of different hip flexor muscles in the order from the superficial to the deep layers as follows: (1) before myotomy (M+RoM); and after myotomy of the (2) tensor fascia lata (TFL-RoM); (3) quadriceps muscle (Quad-RoM); (4) iliopsoas muscle (Iliop-RoM); and (5) all periarticular muscles (M-RoM). [小澤 淳也1]削除かサプリメントか [南本2]Supplementにします