Gait & posture最新文献

Effect of task difficulty on dual-task cost during dual-task walking in people with multiple sclerosis 任务难度对多发性硬化症患者双任务行走成本的影响

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-19 DOI: 10.1016/j.gaitpost.2024.09.003

Background

Cognitive-motor dual-task walking results a decrease in walking performance of patients with multiple sclerosis (PwMS) and it is known as dual-task cost (DTC). However, there is a lack of evidence about the effects of dual-tasks with hierarchical difficulty on DTC in PwMS.

Research question

This study aimed to investigate the effect of task difficulty on DTC during cognitive-motor dual-task walking in people with multiple sclerosis (PwMS).

Methods

32 PwMS and 32 healthy controls were included. The 6-meter walking test (6-Meter WT) with comfortable speed was used as single-task walking condition. For dual-task conditions, walking tasks and cognitive tasks at two difficulty levels (simple and difficult) were combined and DTC for four cognitive-motor dual-task walking conditions as simple motor-simple cognitive (SM-SC), simple motor-difficult cognitive (SM-DC), difficult motor-simple cognitive (DM-SC) and difficult motor-difficult cognitive (DM-DC) were calculated. The 6-Meter WT was used also for simple dual-task walking task. The 6-Meter WT was applied by walking in a narrow base condition for creating a difficult dual-task walking task. For cognitive task difficulty, participants were asked to count backwards by 3 as simple cognitive task and by 7 as difficult cognitive task.

Results

DTC was higher in PwMS than control subjects. DTC in all conditions were different (SM-SC<SM-DC<DM-SC<DM-DC). DTC was higher in PwMS than control subjects in three conditions and was similar SM-SC condition. In addition, DTC in all conditions (SM-SC<SM-DC<DM-SC<DM-DC) were different in both PwMS and control subjects.

Conclusion

The results suggest that task difficulty affects the magnitude of DTC during cognitive-motor dual-task walking in PwMS. Moreover, difficult walking tasks combined with simple cognitive tasks result greater DCT on walking than simple walking tasks combined with difficult cognitive tasks.

研究背景认知-运动双任务行走会导致多发性硬化症患者（PwMS）行走能力下降，被称为双任务成本（DTC）。本研究旨在调查多发性硬化症患者（PwMS）在认知-运动双任务步行过程中任务难度对 DTC 的影响。32名多发性硬化症患者和32名健康对照组患者在单任务步行条件下进行了舒适速度的6米步行测试（6米WT）。在双任务条件下，将行走任务和两种难度（简单和困难）的认知任务相结合，计算简单运动-简单认知（SM-SC）、简单运动-困难认知（SM-DC）、困难运动-简单认知（DM-SC）和困难运动-困难认知（DM-DC）四种认知-运动双任务行走条件下的 DTC。6 米加权平均值也用于简单的双任务步行任务。在狭窄的基础条件下行走时，采用 6 米加权平均值来完成困难的双任务行走任务。在认知任务难度方面，简单认知任务要求参与者倒数 3，困难认知任务要求倒数 7。所有条件下的 DTC 都不同（SM-SC<SM-DC<DM-SC<DM-DC）。在三种条件下，PwMS 的 DTC 均高于对照组受试者，且 SM-SC 条件下的 DTC 相似。此外，在所有条件下（SM-SC<SM-DC<DM-SC<DM-DC），PwMS 和对照组受试者的 DTC 都不同。此外，与简单的行走任务和困难的认知任务相结合相比，困难的行走任务和简单的认知任务相结合会导致更大的行走 DCT。

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引用次数: 0

Different strategies for landing from different heights among people with chronic ankle instability 慢性踝关节不稳患者从不同高度着地的不同策略

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-15 DOI: 10.1016/j.gaitpost.2024.09.008

Background

Lateral ankle sprain (LAS) usually occurs during landing from heights among people with chronic ankle instability (CAI). Although the kinematics when landing on the flat surface has been reported, no studies have explored the effect of different heights on the landing strategies using a trapdoor device among people with CAI.

Research question

Do people with CAI adopt different landing strategies when drop-landing on the trapdoor device from three heights?

Methods

Thirty-one participants with CAI (24 males and 7 females, age=21.1±1.8 years, height=176.9±7.4 cm, body mass=71.9±9.2 kg, injured side=18 R&13 L) were recruited. They dropped from three different heights (low height (16 cm), medium height (23 cm), high height (30 cm)) with their affected foot landing on a movable surface of a trapdoor device, which was tilted 24° inward and 15° forward to simulate LAS. Kinematic data was collected using a twelve-camera motion capture system. One-way analysis of variance with repeated measures was used to compare the differences between the three heights.

Results

Significant height effects were detected in the peak ankle inversion angle (p=0.009, η²_p=0.280) and angular velocity (p<0.001, η²_p=0.444), and the peak ankle plantarflexion (p=0.002, η²_p=0.360), knee flexion (p<0.001, η²_p=0.555), and hip flexion (p=0.030, η²_p=0.215) angles at the time of peak ankle inversion. Post-hoc tests showed that all the angles and velocities were higher at a low height than at medium (p: 0.001–0.045, d: 0.14–0.44) and high heights (p: 0.001–0.023, d: 0.28–0.66), except for the ankle plantarflexion angle, which was lower at a low height than at medium (p<0.001, d=0.44) and high (p=0.021, d=0.38) heights.

Significance

People with CAI adopt a protective strategy during drop-landing at medium and high heights compared to a low height. This strategy involves increased ankle dorsiflexion angle as well as knee and hip flexion angles.

背景慢性踝关节不稳定（CAI）患者通常在从高处着地时发生外踝扭伤（LAS）。虽然已有关于在平地上着陆时的运动学研究报道，但尚未有研究探讨不同高度对 CAI 患者使用活门装置着陆策略的影响。研究问题CAI患者在使用活板门装置从三个高度落下时，是否会采取不同的着地策略？方法招募了31名CAI患者（男性24人，女性7人，年龄=21.1±1.8岁，身高=176.9±7.4厘米，体重=71.9±9.2公斤，受伤侧=18 R&13升）。他们从三个不同的高度（低高度（16 厘米）、中高度（23 厘米）、高高度（30 厘米））落下，患足落在活门装置的活动表面上，活门装置向内倾斜 24°，向前倾斜 15°，以模拟 LAS。运动数据由十二摄像头运动捕捉系统收集。结果在踝关节内翻角峰值（p=0.009，η2p=0.280）和角速度（p<0.001，η2p=0.444）以及踝关节内翻峰值时的踝关节跖屈（p=0.002，η2p=0.360）、膝关节屈曲（p<0.001，η2p=0.555）和髋关节屈曲（p=0.030，η2p=0.215）角度均存在显著的高度效应。事后检验表明，低高度时所有角度和速度均高于中高度（p：0.001-0.045，d：0.14-0.44）和高高度（p：0.001-0.023，d：0.28-0.除了踝关节跖屈角，低高度时的踝关节跖屈角低于中高度（p<0.001，d=0.44）和高高度（p=0.021，d=0.38）时的踝关节跖屈角。该策略包括增加踝关节背屈角度以及膝关节和髋关节屈曲角度。

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引用次数: 0

The relationship between executed cut angle and speed with lower extremity joint angles during unanticipated side-step cutting in soccer players 足球运动员在非预期侧步切入时，执行切入角度和速度与下肢关节角度之间的关系

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-11 DOI: 10.1016/j.gaitpost.2024.09.006

Background

Certain movements patterns have been indicated in knee injuries during cutting while running tasks. Differences in the executed cut angle (ECA) could partially account for group differences in joint kinematics previously observed, including sex differences.

Research question

Are there relationships between joint angles with entry speed and ECA during side-step cutting in soccer players?

Methods

This cross-sectional study recruited 21 (10 females) soccer players. Participants completed 45° unanticipated side-step cuts in both directions. Kinematic data were captured with a 12 camera motion capture system with 46 reflective markers placed on the participants. Peak joint angles were determined during the stance phase of the cutting task. Entry speed and ECA were determined from pelvis markers. Hierarchical linear models examined relationships between angles, entry speed, and ECA, after accounting for age, sex, and leg preference. Regression coefficients with 95 % confidence intervals were reported and statistical significance (p<0.05) were examined using the Wald statistic.

Results

The mean ECA (24.6°) was lower than the intended 45° angle. Peak joint angles were significantly related to both ECA and entry speed. Specifically, an increase in ECA by 10° (i.e., sharper cuts) would increase hip internal rotation and ankle plantarflexion by 1.8–2.1°, and decrease hip adduction, knee abduction and ankle eversion by 1.3–2.4°. Faster entry speeds by 0.5 m/s would increase hip flexion, hip internal rotation and knee extension angles by 1.8–3.8°, and decrease knee abduction by 2.6°.

Significance

Studies evaluating cutting while running should consider ECA and entry speed in their design. Potential differences could confound between-group comparisons of joint angles, including when comparing sexes, and impact interpretations of injury risk.

研究背景某些运动模式已被证实会在跑步切入时造成膝关节损伤。执行切入角度（ECA）的差异可以部分解释之前观察到的关节运动学的群体差异，包括性别差异。研究问题足球运动员在侧步切入时，关节角度与切入速度和 ECA 之间是否存在关系？方法这项横断面研究招募了 21 名（10 名女性）足球运动员。参与者在两个方向上完成 45° 的非预期侧步切入。运动数据由 12 个摄像头的运动捕捉系统捕捉，并在参与者身上放置了 46 个反射标记。在切入任务的站立阶段确定关节角度峰值。根据骨盆标记确定了进入速度和 ECA。在考虑年龄、性别和腿部偏好后，分层线性模型检验了角度、进入速度和 ECA 之间的关系。结果ECA的平均值（24.6°）低于预期的45°角。峰值关节角与 ECA 和进入速度有明显关系。具体来说，ECA 增加 10°（即切入更快），髋关节内旋和踝关节跖屈将增加 1.8-2.1°，髋关节内收、膝关节外展和踝关节外翻将减少 1.3-2.4°。更快的进入速度（0.5 米/秒）将使髋关节屈曲、髋关节内旋和膝关节伸展角度增加 1.8-3.8°，膝关节外展角度减少 2.6°。潜在的差异可能会混淆关节角度的组间比较，包括性别比较，并影响对受伤风险的解释。

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引用次数: 0

The Short Physical Performance Battery does not correlate with daily life gait quality and quantity in community-dwelling older adults with an increased fall risk 在跌倒风险增加的社区居住老年人中，短期体能测试与日常生活步态质量和数量无关

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-10 DOI: 10.1016/j.gaitpost.2024.09.005

Background

Both the Short Physical Performance Battery (SPPB) and daily life gait quality and quantity obtained from wearable sensors are used to measure functional status in older adults. It is generally assumed that they are interrelated and exchangeable, but this has not yet been established. Interchangeability of these measures would pave the way for remote monitoring of functional status.

Research Question

Are the SPPB and daily life gait quality and quantity measures correlated in community-dwelling older adults?

Methods

The SPPB and gait quality and quantity data of 229 community-dwelling adults of 65 years or older were collected. The SPPB is a combined score of the Three Stage Balance test, Four Meter Walk test, and Five Times Sit to Stand test and ranges from 0 to 12. Participants wore a tri-axial inertial sensor for one week to assess gait quality (e.g. gait stability and smoothness) and quantity (e.g. number of strides). Correlation coefficients between SPPB scores and gait quality and quantity measures were assessed using Spearman’s correlation.

Results

The median age of the study population was 76.2 years (IQR 72.6–81.0), and 76 % were women (n=175). The median SPPB score was 10 (IQR 8–11). Spearman's correlation coefficients between the SPPB and gait quality and quantity measures were all below 0.3.

Significance

A possible explanation for the observed weak correlations is that the SPPB reflects one’s maximal capacity, while gait quality and quantity reflect the submaximal performance in daily life. The SPPB and gait quality and quantity seem therefore distinct constructs with complementary value, rather than interchangeable. A more comprehensive understanding of functional status might be achieved by combining the SPPB assessment of standardized activities with the evaluation of inertial sensor measurements obtained during daily life activities.

背景短期体能测试（SPPB）和通过可穿戴传感器获得的日常生活步态质量和数量都被用于测量老年人的功能状态。一般认为它们是相互关联和可交换的，但这一点尚未得到证实。研究问题在社区居住的老年人中，SPPB 和日常生活步态质量和步态数量测量是否相关？SPPB 是三阶段平衡测试、四米步行测试和五次坐立测试的综合得分，范围从 0 到 12。参与者佩戴三轴惯性传感器一周，以评估步态质量（如步态稳定性和平稳性）和步态数量（如步数）。SPPB得分与步态质量和步态数量之间的相关系数采用斯皮尔曼相关法进行评估。结果研究对象的中位年龄为76.2岁（IQR 72.6-81.0），76%为女性（n=175）。SPPB 评分中位数为 10（IQR 8-11）。SPPB与步态质量和步态数量测量之间的斯皮尔曼相关系数均低于0.3。显著性对于观察到的微弱相关性，可能的解释是SPPB反映的是一个人的最大能力，而步态质量和步态数量反映的是日常生活中的次最大能力。因此，SPPB 与步态质量和数量似乎是具有互补价值的不同结构，而不是可以互换的。通过将标准化活动的 SPPB 评估与日常生活活动中获得的惯性传感器测量值的评估相结合，可能会对功能状态有更全面的了解。

{"title":"The Short Physical Performance Battery does not correlate with daily life gait quality and quantity in community-dwelling older adults with an increased fall risk","authors":"","doi":"10.1016/j.gaitpost.2024.09.005","DOIUrl":"10.1016/j.gaitpost.2024.09.005","url":null,"abstract":"<div><h3>Background</h3><p>Both the Short Physical Performance Battery (SPPB) and daily life gait quality and quantity obtained from wearable sensors are used to measure functional status in older adults. It is generally assumed that they are interrelated and exchangeable, but this has not yet been established. Interchangeability of these measures would pave the way for remote monitoring of functional status.</p></div><div><h3>Research Question</h3><p>Are the SPPB and daily life gait quality and quantity measures correlated in community-dwelling older adults?</p></div><div><h3>Methods</h3><p>The SPPB and gait quality and quantity data of 229 community-dwelling adults of 65 years or older were collected. The SPPB is a combined score of the Three Stage Balance test, Four Meter Walk test, and Five Times Sit to Stand test and ranges from 0 to 12. Participants wore a tri-axial inertial sensor for one week to assess gait quality (e.g. gait stability and smoothness) and quantity (e.g. number of strides). Correlation coefficients between SPPB scores and gait quality and quantity measures were assessed using Spearman’s correlation.</p></div><div><h3>Results</h3><p>The median age of the study population was 76.2 years (IQR 72.6–81.0), and 76 % were women (n=175). The median SPPB score was 10 (IQR 8–11). Spearman's correlation coefficients between the SPPB and gait quality and quantity measures were all below 0.3.</p></div><div><h3>Significance</h3><p>A possible explanation for the observed weak correlations is that the SPPB reflects one’s maximal capacity, while gait quality and quantity reflect the submaximal performance in daily life. The SPPB and gait quality and quantity seem therefore distinct constructs with complementary value, rather than interchangeable. A more comprehensive understanding of functional status might be achieved by combining the SPPB assessment of standardized activities with the evaluation of inertial sensor measurements obtained during daily life activities.</p></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S096663622400612X/pdfft?md5=7c016546d161235030f972fc67c12132&pid=1-s2.0-S096663622400612X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning model identifies patient gait speed throughout the episode of care, generating notifications for clinician evaluation 机器学习模型在整个护理过程中识别患者的步态速度，生成通知供临床医生评估

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-06 DOI: 10.1016/j.gaitpost.2024.09.001

Introduction

The advent of digital and mobile health innovations, especially use of wearables for passive data collection, allows remote monitoring and creates an abundance of data. For this information to be interpretable, machine learning (ML) processes are necessary.

Research question

Can a machine learning model successfully identify patients expected to have low gait speed in the early recovery period following joint replacement surgery?

Methods

A commercial database from a smartphone-based care management platform passively collecting mobility data pre- and post-lower limb arthroplasty was used. We sought to create a ML model to predict gait speed recovery curves and identify patients at risk of poor gait speed outcome, a measure associated with range of motion and patient-reported outcomes. Model performance including sensitivity, specificity, precision, and accuracy were determined. Receiver operator curve (ROC) analysis was used to compare true and false positive rates. To benchmark our model, we compared threshold-based notifications based on the patient’s current gait speed.

Results

The performance of the predictive model was significantly improved compared to baseline of threshold-based exceptions using current gait speed. The ML model currently provides 53 % precision, 88 % accuracy, 36 % sensitivity, and 95 % specificity on the held-out test set. The ROC analysis suggests good clinical performance (AUC=0.81).

Significance

Utilization of ML to predict gait recovery following total joint replacement is feasible and provides results with excellent specificity. This model will allow inclusion of additional data for retraining as patient populations evolve. Clinician feedback regarding notifications, including resulting actions and outcomes, can be used to further inform the model and improve clinical utility.

引言数字和移动医疗创新技术的出现，尤其是可穿戴设备被动数据收集技术的使用，实现了远程监控并产生了大量数据。研究问题机器学习模型能否成功识别关节置换手术后早期恢复期步速较低的患者？研究方法我们使用了一个基于智能手机的护理管理平台的商业数据库，该平台被动收集下肢关节置换术前后的移动数据。我们试图创建一个 ML 模型来预测步态速度恢复曲线，并识别步态速度结果不佳的高危患者，步态速度结果与运动范围和患者报告的结果相关。我们确定了模型的性能，包括灵敏度、特异性、精确度和准确性。受体运算曲线（ROC）分析用于比较真阳性率和假阳性率。为了对我们的模型进行基准测试，我们比较了基于患者当前步速的阈值通知。目前，在保留的测试集中，ML 模型的精确度为 53%，准确度为 88%，灵敏度为 36%，特异度为 95%。ROC分析表明，该模型具有良好的临床性能（AUC=0.81）。意义利用ML预测全关节置换术后的步态恢复是可行的，并能提供特异性极佳的结果。随着患者群体的不断变化，该模型还可纳入更多数据进行再训练。临床医生对通知的反馈，包括由此产生的行动和结果，可用于进一步完善该模型并提高临床实用性。

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引用次数: 0

Comparative analysis of upper body kinematics in stroke, Parkinson's disease, and healthy subjects: An observational study using IMU-based targeted box and block test 中风、帕金森病和健康受试者上半身运动学对比分析：使用基于 IMU 的定向盒和块测试的观察研究

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-05 DOI: 10.1016/j.gaitpost.2024.09.002

Background

The Box and Block Test (BBT) is an essential and widely used test in rehabilitation for the assessment of gross unilateral manual dexterity. Although it is a valid, simple, and ecological instrument, it does not provide a quantitative measure of the upper limb trajectories during the test.

Research question

The study introduces a new motion-capture-based method (using ecological Inertial Measurement Units - IMUs) to evaluate upper body kinematics while performing a targeted version of BBT (tBBT).

Methods

This observational study compares data from 35 healthy subjects, 35 subjects with Parkinson’s disease, and 35 post-stroke individuals to evaluate upper limb kinematics during tBBT quantitatively. Seven IMUs were placed on the trunk, head, and upper limb of each subject. The joint angles and kinematic scores were calculated and analyzed. Motor task execution time and kinematic scores were statistically correlated with clinical assessment measures. Kruskal-Wallis between groups test and Dunn-Bonferroni post-hoc were used.

Results

The statistics revealed significant differences (p<0.05) among the three groups. The analyzed joint angles highlight various compensatory strategies in neurological subjects, such as using the trunk to complete a motor task instead of the shoulder and using the wrist instead of the elbow, along with differences in movement fluidity (DimensionLess-Jerk, p<0.05). A positive correlation was found between kinematics and the Fugl-Meyer Assessment-Upper Limb (r=0.7344; p<0.01), and a negative correlation between kinematics and the Unified Parkinson's Disease Rating Scale (r=-0.5286; p<0.01).

Significance

The quantitative assessments of joint kinematics correlated to clinical assessments could guarantee a new method of assessment of the upper limb in subjects with motor deficits. This would allow to capture new insight into the characteristics of the subject’s disability, with implications for the choice of a personalized rehabilitation treatment focused on the motor recovery of the upper limb.

背景箱块试验（BBT）是康复训练中广泛使用的一项重要试验，用于评估单侧手的粗大灵活性。方法本观察性研究比较了 35 名健康受试者、35 名帕金森病受试者和 35 名脑卒中后受试者的数据，以定量评估盒块测试过程中上肢的运动学特性。每个受试者的躯干、头部和上肢上都放置了七个 IMU。对关节角度和运动学评分进行了计算和分析。运动任务执行时间和运动学评分与临床评估指标存在统计学相关性。采用 Kruskal-Wallis 组间检验和 Dunn-Bonferroni 事后检验。分析的关节角度凸显了神经系统受试者的各种代偿策略，如用躯干代替肩部完成运动任务，用手腕代替肘部，以及运动流畅性的差异（DimensionLess-Jerk，p<0.05）。运动学与 Fugl-Meyer 评估-上肢之间存在正相关（r=0.7344；p<0.01），而运动学与统一帕金森病评分量表之间存在负相关（r=-0.5286；p<0.01）。这将有助于深入了解受试者的残疾特征，对选择以上肢运动恢复为重点的个性化康复治疗具有重要意义。

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引用次数: 0

Walking stress-induced changes in gait patterns and muscle activity: Patients with lumbar spinal stenosis versus asymptomatic controls 行走压力引起的步态和肌肉活动变化：腰椎管狭窄症患者与无症状对照组对比。

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-02 DOI: 10.1016/j.gaitpost.2024.08.083

Introduction

Patients with symptomatic lumbar spinal stenosis (sLSS) are often limited in their walking range because of worsening symptoms, which is thought to induce changes in the gait pattern. The aim of this study was to determine whether changes in gait pattern and muscle activity in these patients are elicited by a walking stress and differ from asymptomatic controls.

Methods

Twenty patients with sLSS and 19 asymptomatic controls performed a 30-minute walking stress. Gait was assessed using seven inertial sensors and sagittal joint range of motion (ROM) was calculated during different phases of gait. Muscle activation of the gluteus medius, erector spinae and multifidus muscles was measured by surface electromyography (EMG) and integrated EMGs (normalized to the maximum during gait) were calculated. Differences between groups and time points (beginning and end) were assessed using mixed factorial analysis of variance.

Results

Patients had less knee extension ROM in terminal stance, less knee flexion ROM in swing and less overall hip flexion/extension ROM than controls (p ≤ 0.03). There were no functionally relevant changes in these parameters during the walking stress. The integrated EMG was greater in all muscles in patients than in controls and increased in both groups during the walking stress in the paraspinal but not in the gluteus medius muscle. There was no interaction between group and time for any of the parameters.

Conclusion

Differences in gait pattern and muscle activity between patients with sLSS and controls are generally present, but are not amplified by a walking stress.

导言：症状性腰椎管狭窄症（sLSS）患者往往因症状恶化而限制行走范围，这被认为会引起步态改变。本研究旨在确定行走压力是否会引起这些患者步态和肌肉活动的变化，以及这些变化与无症状对照组的步态和肌肉活动是否存在差异：方法：20 名 sLSS 患者和 19 名无症状对照者进行了 30 分钟的步行压力训练。使用七个惯性传感器对步态进行评估，并计算步态不同阶段的矢状关节活动范围（ROM）。通过表面肌电图（EMG）测量臀中肌、竖脊肌和多侧肌的肌肉激活情况，并计算综合 EMGs（归一化为步态期间的最大值）。采用混合因子方差分析评估了组间和时间点（开始和结束）的差异：结果：与对照组相比，患者末期站立时的膝关节伸展ROM较小、摆动时的膝关节屈曲ROM较小、总体髋关节屈曲/伸展ROM较小（P≤0.03）。这些参数在行走应力期间没有发生功能上的相关变化。患者所有肌肉的综合肌电图均大于对照组，两组患者在行走应力期间，脊柱旁肌的综合肌电图均有所增加，但臀中肌的综合肌电图没有增加。在任何参数上，组别与时间之间都不存在交互作用：结论：sLSS 患者与对照组之间的步态和肌肉活动差异普遍存在，但不会因步行压力而扩大。

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引用次数: 0

Can a single sensor measure hip range of motion in hip osteoarthritis patients? 单个传感器能否测量髋关节骨关节炎患者的髋关节活动范围？

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-01 DOI: 10.1016/j.gaitpost.2024.07.018

引用次数: 0

Influence of increased femoral anteversion on the trunk and pelvic kinematics during gait in hypermobile children 股骨内翻增加对活动过度儿童步态中躯干和骨盆运动学的影响

IF 2.2 3区医学 Q3 NEUROSCIENCES

Gait & posture

Pub Date : 2024-09-01 DOI: 10.1016/j.gaitpost.2024.07.012

引用次数: 0

The effect of motor control impairment and low back pain on the athletic performance of elite soccer players 运动控制障碍和腰痛对精英足球运动员运动表现的影响