METHODS: Cross-sectional study.
METHODS: 44 participants (30 men and 14 women) engaged in two running sessions, one with shoes and one without, both lasting 3 min at a consistent speed of 12 km/h. We captured running kinematic data using a photoelectric cell system throughout the sessions. Before the trials, we measured the thickness and cross-sectional area of both the Achilles tendon and plantar fascia using ultrasound.
RESULTS: The Pearson test revealed a significant correlation (p < 0,05) between Achilles tendon and plantar fascia morphology and contact time (r > -0.325), flight time (r > -0.325) and duty factor (ratio of ground contact to stride time) (r > -0.328) during barefoot running. During the shod condition, no significant correlation was found between connective tissue morphology and kinematic variables.
CONCLUSIONS: In barefoot running, greater size of the Achilles tendon and plantar fascia results in a reduced duty factor, attributed to longer flight times and shorter contact times.
方法:横断面研究。
方法:44名参与者(30名男性和14名女性)参加了两次跑步,一个有鞋子,一个没有,两者以12km/h的一致速度持续3分钟。在整个会话中,我们使用光电细胞系统捕获了运行的运动学数据。在审判之前,我们使用超声测量跟腱和足底筋膜的厚度和横截面积.
结果:Pearson检验显示跟腱和足底筋膜形态与接触时间(r>-0.325)之间存在显着相关性(p<0.05),赤脚跑步时的飞行时间(r>-0.325)和占空比(地面接触与跨步时间之比)(r>-0.328)。在穿鞋状态下,结缔组织形态学和运动学变量之间没有发现显著的相关性.
结论:赤脚跑步,跟腱和足底筋膜的更大尺寸导致占空比降低,归因于较长的飞行时间和较短的接触时间。