Center for Sports Medicine, University Medical Center Groningen, The Netherlands.
J Sci Med Sport. 2013 May;16(3):205-10. doi: 10.1016/j.jsams.2012.08.002. Epub 2012 Aug 24.
This prospective study examined differences in kinetic variables between injured and noninjured novice female and male runners and their potential contribution to RRIs.
A prospective cohort study.
At baseline vertical ground reaction forces were assessed with an instrumented treadmill equipped with three force measuring transducers. Female participants ran at 8 and 9kmh(-1) and male runners ran at 9 and 10kmh(-1). Primary outcome measure was a running related injury (RRI). Participants were novice female and male recreational runners and were followed during a 9-week running program with three running sessions a week.
One hundred thirty three female and seventy seven male runners participated in this study. Mean age was 37.2years and the BMI was 23.9kgm(-2). During the nine week running program 16.2% of the participants sustained an injury and no difference in incidence between female and male runners was seen. In injured male runners loading rate was significantly higher compared to noninjured male runners at both running speeds and contact time in the injured male group was significantly shorter at 9kmh(-1). In the group of female injured and noninjured runners no differences on kinetic or spatio-temporal variables were observed. Female runners had significantly higher loading rates compared to male runners but this did not have an effect on the incidence of RRIs.
This study showed that male injured runners had higher loading rates and shorter contact times than noninjured male runners. In female runners, however, no differences in kinetic or spatio-temporal variables were observed between injured and noninjured novice runners.
本前瞻性研究旨在比较受伤和未受伤的新手女性和男性跑步者之间的动力学变量差异及其对 RRIs 的潜在影响。
前瞻性队列研究。
在基线时，使用配备有三个力测量传感器的仪器化跑步机评估垂直地面反作用力。女性参与者以 8 和 9kmh(-1)的速度跑步，男性跑步者以 9 和 10kmh(-1)的速度跑步。主要结局测量指标为与跑步相关的损伤（RRI）。参与者为新手女性和男性休闲跑步者，在为期 9 周的跑步计划中每周进行 3 次跑步，接受随访。
本研究共纳入 133 名女性和 77 名男性跑步者。平均年龄为 37.2 岁，BMI 为 23.9kgm(-2)。在 9 周的跑步计划中，16.2%的参与者发生了损伤，女性和男性跑步者的发生率无差异。在受伤的男性跑步者中，在两种跑步速度下，负荷率均明显高于未受伤的男性跑步者，受伤组的接触时间明显缩短，在 9kmh(-1)时。在受伤和未受伤的女性跑步者组中，未观察到动力学或时空变量的差异。女性跑步者的负荷率明显高于男性跑步者，但这并未对 RRIs 的发生率产生影响。
本研究表明，受伤的男性跑步者的负荷率较高，接触时间较短。然而，在女性跑步者中，未受伤的新手女性跑步者和受伤的新手女性跑步者之间未观察到动力学或时空变量的差异。
