Reh Julia, Schmitz Gerd, Hwang Tong-Hun, Effenberg Alfred O
Institute of Sports Science, Leibniz University Hannover, Hannover, Germany.
Front Sports Act Living. 2021 May 7;3:654546. doi: 10.3389/fspor.2021.654546. eCollection 2021.
It is known that patients after unilateral hip arthroplasty still suffer from a deficient gait pattern compared to healthy individuals one year after surgery. Through the method of gait sonification, it may be possible to achieve a more efficient training and a more physiological gait pattern. Increased loads on the musculoskeletal system could thus be reduced and rehabilitation times shortened. In a previous investigation with this patient group, we found immediate gait pattern changes during training with dual mode acoustic feedback [real-time feedback (RTF) and instructive model sequences (IMS)]. To determine whether an effect persists without the immediate use of acoustic feedback, we analyze data from four times of testing. Following unilateral hip arthroplasty 22 patients participated in an intervention of ten gait training sessions of 20 min each. During gait training the sonification group (SG) ( = 11) received an acoustic feedback consisting of RTF and IMS compared to a control group (CG) ( = 11). Pre-test, intermediate test, post-test, and re-test were conducted using an inertial sensor-based motion analysis system. We found significant effects (α = 0.05) regarding step length and range of motion (RoM) of the hip joint. Step length of the affected leg increased in the SG from intermediate test to post-test but decreased in the CG [intermediate test: (SG) 0.63 m ± 0.12 m, (CG) 0.63 m ± 0.09 m; post-test: (SG) 0.66 m ± 0.11 m, (CG) 0.60 m ± 0.09 m]. However, from the post-test to the re-test a reverse development was observed [re-test: (SG) 0.63 m ± 0.10 m, (CG) 0.65 m ± 0.09 m]. Also, from post-test to re-test a decrease in the RoM of the unaffected hip for the SG but an increase for the CG could be observed [post-test: (SG) 44.10° ± 7.86°, (CG) 37.05° ± 7.21°; re-test: (SG) 41.73° ± 7.38°, (CG) 40.85° ± 9.28°]. Regarding further parameters, significant interactions in step duration as well as increases in stride length, gait speed, cadence, and a decrease in ground contact time from pre-test to re-test were observed for both groups. https://www.drks.de/drks_web/, identifier DRKS00022570.
众所周知，单侧髋关节置换术后的患者在术后一年与健康个体相比，步态模式仍存在缺陷。通过步态声化方法，有可能实现更有效的训练和更符合生理的步态模式。从而可以减轻肌肉骨骼系统上增加的负荷并缩短康复时间。在之前对该患者群体的一项调查中，我们发现使用双模式声学反馈（实时反馈（RTF）和指导性模型序列（IMS））进行训练时，步态模式会立即发生变化。为了确定在不立即使用声学反馈的情况下效果是否持续存在，我们分析了四次测试的数据。22 名单侧髋关节置换术后的患者参加了一项干预，包括每次 20 分钟、共十次的步态训练课程。在步态训练期间，与对照组（CG）（n = 11）相比，声化组（SG）（n = 11）接受了由 RTF 和 IMS 组成的声学反馈。使用基于惯性传感器的运动分析系统进行前测、中期测试、后测和复测。我们发现关于步长和髋关节活动范围（RoM）有显著影响（α = 0.05）。SG 组中患侧腿的步长从中期测试到后测增加，但在 CG 组中减少[中期测试：（SG）0.63 m ± 0.12 m，（CG）0.63 m ± 0.09 m；后测：（SG）0.66 m ± 0.11 m，（CG）0.60 m ± 0.09 m]。然而，从后测到复测观察到相反的变化[复测：（SG）0.63 m ± 0.10 m，（CG）0.65 m ± 0.09 m]。此外，从后测到复测，可以观察到 SG 组中未受影响髋关节的 RoM 下降，而 CG 组则增加[后测：（SG）44.10° ± 7.86°，（CG）37.05° ± 7.21°；复测：（SG）41.73° ± 7.38°，（CG）40.85° ± 9.28°]。关于其他参数，两组在前测到复测期间均观察到步长持续时间的显著交互作用以及步幅长度、步态速度、步频增加和地面接触时间减少。https://www.drks.de/drks_web/，标识符 DRKS00022570。
