School of Health and Human Performance, Dublin City University, Dublin, Ireland.
Insight SFI Research Centre for Data Analytics, Dublin City University, Dublin, Ireland.
PLoS One. 2022 Sep 9;17(9):e0273716. doi: 10.1371/journal.pone.0273716. eCollection 2022.
INTRODUCTION/PURPOSE: Previous injury has consistently been shown to be one of the greatest risk factors for running-related injuries (RRIs). Runners returning to participation following injury may still demonstrate injury-related mechanics (e.g. repetitive high impact loading), potentially exposing them to further injuries. The aim of this study was to determine if the magnitude (Peakaccel) and rate of loading (Rateaccel) at the tibia and sacrum differ between runners who have never been injured, those who have acquired injury resistance (runners who have not been injured in the past 2 years) and those who have been recently injured (RRI sustained 3-12 months ago).
Runners completed an online survey capturing details of their RRI history over the previous 2 years. Never injured runners were matched by sex, quarterly annual mileage and typical training speed to runners who had acquired injury resistance and to runners who had been recently injured. Differences in Peakaccel and Rateaccel of the tibia and sacrum were assessed between the three groups during a treadmill run at a set speed, with consideration for sex.
A total of 147 runners made up the three injury status groups (n: 49 per group). There was a significant main effect of injury status for Peakaccel and Rateaccel at the sacrum, with recently injured runners demonstrating significantly greater Rateaccel than never injured and acquired injury resistant runners. There was also a significant main effect for sex, with females demonstrating greater tibial Peakaccel, sacrum Peakaccel and Rateaccel than males.
Rateaccel at the sacrum distinguishes recently injured runners from never injured runners and runners who may have acquired injury resistance, potentially highlighting poor impact acceleration attenuation in recently injured runners.
引言/目的：既往损伤一直是与跑步相关损伤（RRIs）最大的风险因素之一。受伤后重返运动的跑步者可能仍表现出与损伤相关的力学特征（例如，重复的高冲击负荷），从而使他们面临进一步损伤的风险。本研究旨在确定胫骨和骶骨的峰值加速度（Peakaccel）和加载率（Rateaccel）的幅度是否在从未受伤、具有损伤抵抗能力（过去 2 年内未受伤）和最近受伤（3-12 个月前受伤）的跑步者之间存在差异。
跑步者完成了一项在线调查，调查内容包括过去 2 年内的 RRIs 病史。从未受伤的跑步者根据性别、季度年里程数和典型训练速度与具有损伤抵抗能力的跑步者和最近受伤的跑步者相匹配。在设定速度的跑步机跑步过程中，考虑到性别，评估了三组之间胫骨和骶骨的 Peakaccel 和 Rateaccel 的差异。
共有 147 名跑步者组成了三组损伤状态组（n：每组 49 人）。骶骨的 Peakaccel 和 Rateaccel 存在显著的损伤状态主效应，最近受伤的跑步者的 Rateaccel 明显大于从未受伤和具有损伤抵抗能力的跑步者。性别也存在显著的主效应，女性的胫骨 Peakaccel、骶骨 Peakaccel 和 Rateaccel 均大于男性。
骶骨的 Rateaccel 可区分最近受伤的跑步者与从未受伤的跑步者和可能具有损伤抵抗能力的跑步者，这可能突出了最近受伤的跑步者中较差的冲击加速衰减。
