von Aesch Arlene Vivienne, Häckel Sonja, Kämpf Tobias, Baur Heiner, Bastian Johannes Dominik
Physiotherapie SportClinic Zurich, Giesshübelstrasse 15, 8045, Zurich, Switzerland.
School of Health Professions, Department of Physiotherapy, Bern University of Applied Sciences, Murtenstrasse 10, Bern, Switzerland.
Eur J Trauma Emerg Surg. 2024 Dec;50(6):2915-2924. doi: 10.1007/s00068-024-02609-5. Epub 2024 Aug 17.
To investigate how audio-biofeedback during the instruction of partial weight-bearing affected adherence, compared to traditional methods, in older adults; and to investigate the influence of individual characteristics.
The primary outcome measure of this randomised controlled trial was the amount of load, measured as the ground reaction force, on the partial weight-bearing leg. The secondary outcome was the influence of individual characteristics on the amount of load. Included were healthy volunteers 60 years of age or older without gait impairment. Participants were randomly allocated to one of two groups; blinding was not possible. Partial weight-bearing of 20 kg was trained using crutches with audio-biofeedback (intervention group) or a bathroom scale (control group). The degree of weight-bearing was measured during six activities with sensor insoles. A mean load between 15 and 25 kg was defined as adherent.
There was no statistically significant difference in weight-bearing between the groups for all activities measured. For the sit-stand-sit activity, weight-bearing was within the adherence range of 15-25 kg (audio-biofeedback: 21.7 ± 16.6 kg; scale: 22.6 ± 13 kg). For standing, loading was below the lower threshold (10 ± 7 vs. 10 ± 10 kg). Weight-bearing was above the upper threshold for both groups for: walking (26 ± 11 vs. 34 ± 16), step-up (29 ± 18 vs. 34 ± 20 kg) and step-down (28 ± 15 vs. 35 ± 19 kg). Lower level of cognitive function, older age, and higher body mass index were correlated with overloading.
Audio-biofeedback delivered no statistically significant benefit over the scale method. Lower cognitive function, older age and higher body mass index were associated with overloading.
Not applicable due not being a clinical trial and due to the cross-sectional design (one measurement point, no health intervention, no change in health of a person).
研究与传统方法相比，在指导老年人部分负重时音频生物反馈对依从性的影响；并研究个体特征的影响。
这项随机对照试验的主要结局指标是部分负重腿上的负荷量，以地面反作用力衡量。次要结局是个体特征对负荷量的影响。纳入的是60岁及以上无步态障碍的健康志愿者。参与者被随机分配到两组之一；无法进行盲法。使用带有音频生物反馈的拐杖（干预组）或体重秤（对照组）对20kg的部分负重进行训练。使用传感器鞋垫在六项活动中测量负重程度。将15至25kg之间的平均负荷定义为依从。
在所有测量的活动中，两组之间的负重没有统计学上的显著差异。对于坐-站-坐活动，负重处于15-25kg的依从范围内（音频生物反馈：21.7±16.6kg；体重秤：22.6±13kg）。对于站立，负荷低于下限阈值（10±7对10±10kg）。两组在以下活动中的负重均高于上限阈值：行走（26±11对34±16）、上台阶（29±18对34±20kg）和下台阶（28±15对35±19kg）。较低的认知功能水平、较高的年龄和较高的体重指数与超负荷相关。
音频生物反馈在统计学上没有比体重秤方法带来显著益处。较低的认知功能、较高的年龄和较高的体重指数与超负荷有关。
由于不是临床试验且采用横断面设计（一个测量点，无健康干预，个人健康无变化），不适用。
