DeJong Lempke Alexandra F, Stephens Stephanie L, Fish Pamela N, Thompson Xavier D, Hart Joseph M, Hryvniak David J, Rodu Jordan S, Hertel Jay
Kinesiology, University of Michigan, Ann Arbor, Michigan, USA.
Kinesiology, University of Virginia, Charlottesville, Virginia, USA.
BMJ Open Sport Exerc Med. 2022 Nov 3;8(4):e001293. doi: 10.1136/bmjsem-2021-001293. eCollection 2022.
To assess the effects of a 4-week randomised controlled trial comparing an outdoor gait-training programme to reduce contact time in conjunction with home exercises (contact time gait-training feedback with home exercises (FBHE)) to home exercises (HEs) alone for runners with exercise-related lower leg pain on sensor-derived biomechanics and patient-reported outcomes.
Randomised controlled trial.
Laboratory and field-based study.
20 runners with exercise-related lower leg pain were randomly allocated into FBHE (4 male (M), 6 female (F), 23±4 years, 22.0±4.3 kg/m) or HE groups (3 M, 7 F, 25±5 years, 23.6±3.9 kg/m).
Both groups completed eight sessions of HEs over 4 weeks. The FBHE group received vibrotactile feedback through wearable sensors to reduce contact time during outdoor running.
Patient-reported outcome measures (PROMs) and outdoor gait assessments were conducted for both groups at baseline and 4 weeks. PROMs were repeated at 6 weeks, and feedback retention was assessed at 6 weeks for the FBHE group. Repeated measures analyses of variance were used to assess the influence of group and timepoint on primary outcomes.
The FBHE group reported increased function and recovery on PROMs beyond the HE group at 6 weeks (p<0.001). There was a significant group by time interaction for Global Rating of Change (p=0.004) and contact time (p=0.002); the FBHE group reported greater subjective improvement and reduced contact time at 4 and 6 weeks compared with the HE group and compared with baseline. The FBHE group had increased cadence (mean difference: 7 steps/min, p=0.01) at 4 weeks during outdoor running compared with baseline.
FBHE was more effective than HE alone for runners with exercise-related lower leg pain, manifested with improved PROMs, reduced contact time and increased cadence.
NCT04270565.
评估一项为期4周的随机对照试验的效果，该试验比较了一种户外步态训练计划（结合家庭锻炼以减少着地时间，即带家庭锻炼的着地时间步态训练反馈（FBHE））与仅进行家庭锻炼（HEs）对患有运动相关性小腿疼痛的跑步者的传感器衍生生物力学和患者报告结局的影响。
随机对照试验。
基于实验室和实地的研究。
20名患有运动相关性小腿疼痛的跑步者被随机分配到FBHE组（4名男性（M），6名女性（F），23±4岁，22.0±4.3kg/m²）或HE组（3名男性，7名女性，25±5岁，23.6±3.9kg/m²）。
两组在4周内均完成了8次家庭锻炼课程。FBHE组通过可穿戴传感器接收振动触觉反馈，以减少户外跑步时的着地时间。
在基线和4周时对两组进行患者报告结局指标（PROMs）和户外步态评估。在6周时重复进行PROMs评估，并在6周时评估FBHE组的反馈保留情况。采用重复测量方差分析来评估组和时间点对主要结局的影响。
在6周时，FBHE组在PROMs上报告的功能和恢复情况优于HE组（p<0.001）。在总体变化评分（p=0.004）和着地时间（p=0.002）方面存在显著的组×时间交互作用；与HE组相比以及与基线相比，FBHE组在4周和6周时报告主观改善更大且着地时间减少。与基线相比，FBHE组在4周户外跑步时步频增加（平均差异：7步/分钟，p=0.01）。
对于患有运动相关性小腿疼痛的跑步者，FBHE比单独的HEs更有效，表现为PROMs改善、着地时间减少和步频增加。
NCT04270565。
