Gait & posture最新文献

{"title":"Effects on spinal posture of varying loads pushed while walking at different gait velocities","authors":"Daniel Stark,&nbsp;Teya Tashukova,&nbsp;Sybele E. Williams,&nbsp;Catherine Disselhorst-Klug","doi":"10.1016/j.gaitpost.2025.04.021","DOIUrl":"10.1016/j.gaitpost.2025.04.021","url":null,"abstract":"<div><h3>Background</h3><div>Pushing activities are associated with a considerable risk for back disorders. Previous findings verify that pushing tasks influence trunk position, but do not establish how spinal posture and curvature change when pushing while walking. There is no information about how changes in spinal curvature are influenced by the load being pushed and the velocity at which it is pushed.</div></div><div><h3>Research question</h3><div>Purpose of this study was therefore to evaluate the effect on spinal posture of varying loads during the sustained phase of pushing activities while walking at different velocities.</div></div><div><h3>Method</h3><div>21 male and 9 female healthy subjects took part in the study. Video rasterstereography was used to measure trunk inclination, pelvic tilt, and spinal curvature in the sagittal, frontal and transverse planes. During measurements, subjects walked with constant velocity (either 3 km/h or 5 km/h) while pushing different loads (0 N, 80 N or 160 N).</div></div><div><h3>Results</h3><div>The results indicate that the magnitude of the load pushed significantly affects (p &lt; 0.01) the trunk forward inclination, the pelvic tilt and the curvature of the spine in the sagittal plane. As the load pushed increases, the kyphotic angle decreases while the lordotic angle remains unchanged. Kyphosis apex increases and lordosis apex decreases. This effect is independent of gait velocity and gait phase.</div></div><div><h3>Significance</h3><div>Our findings suggest that pushing activities may primarily alter the curvature of the thoracic spine and influence the transition between the lumbar and thoracic spine. This could be worth considering when thinking about the load on the spine during pushing tasks.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 9-18"},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes of knee proprioception in patients with knee osteoarthritis undergoing unicompartmental knee arthroplasty","authors":"Bojian Yang ,&nbsp;Jingnan Shi ,&nbsp;Haohua Zhang ,&nbsp;Kuan Zhang ,&nbsp;Songhua Yan","doi":"10.1016/j.gaitpost.2025.04.020","DOIUrl":"10.1016/j.gaitpost.2025.04.020","url":null,"abstract":"<div><h3>Objective</h3><div>Proprioception, encompassing position sense, kinesthesia, and force sense, is crucial for maintaining joint stability. While prior studies suggest improved knee proprioception in knee osteoarthritis (KOA) patients following unicompartmental knee arthroplasty (UKA), assessments were limited to position sense or kinesthesia alone, failing to comprehensively evaluate proprioceptive changes. This study aimed to investigate the effects of UKA on all three proprioceptive components in KOA patients.</div></div><div><h3>Methods</h3><div>Seventy KOA patients and 29 healthy controls were recruited, with 36 patients undergoing UKA. Sixteen and 12 patients were measured at the 3-month and 6-month follow-up postoperatively. Proprioception (position sense at 30°, 45°, and 60 °, kinesthesia, and force sense) was assessed preoperatively and postoperatively at 3 and 6 months.</div></div><div><h3>Results</h3><div>Preoperatively, KOA patients exhibited significantly impaired position sense, kinesthesia, and force sense in both operated and contralateral knees compared to controls (p &lt; 0.05). At 3 months postoperatively, position sense at 30°, kinesthesia and force sense in contralateral knee improved significantly (p &lt; 0.05). Operated knee kinesthesia also improved (p &lt; 0.05). No significant differences were observed between 3 and 6 months postoperatively.</div></div><div><h3>Conclusions</h3><div>KOA patients demonstrate reduced proprioception compared to healthy individuals. Postoperative improvements in proprioception, particularly in the contralateral knee, were evident at 3 months but plateaued by 6 months, underscoring the need for targeted proprioceptive rehabilitation post-UKA.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 205-210"},"PeriodicalIF":2.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability and validity of current computer vision based motion capture systems in gait analysis: A systematic review","authors":"Xingye Cheng ,&nbsp;Yiran Jiao ,&nbsp;Rebecca M. Meiring ,&nbsp;Bo Sheng ,&nbsp;Yanxin Zhang","doi":"10.1016/j.gaitpost.2025.04.016","DOIUrl":"10.1016/j.gaitpost.2025.04.016","url":null,"abstract":"<div><h3>Background</h3><div>Traditional instrumented gait analysis (IGA) objectively quantifies gait deviations, but its clinical use is hindered by high cost, lab environment, and complex protocols. Pose estimation algorithm (PEA)-based gait analysis, which infers joint positions from videos, offers an accessible method to detect gait abnormalities and tailor rehabilitation strategies. However, its reliability and validity in gait analysis and algorithmic factors affecting accuracy have not been reviewed.</div></div><div><h3>Research question</h3><div>This systematic review aims to evaluate the accuracy of PEA-based gait analysis systems and to identify the algorithmic factors impacting their accuracy.</div></div><div><h3>Method</h3><div>A total of 644 articles were initially identified through Scopus, PubMed, and IEEE, with 20 meeting the inclusion and exclusion criteria. Reliability, validity, and algorithmic parameters were extracted for detailed review.</div></div><div><h3>Results and significance</h3><div>Most included articles focus on validity against the gold standard, while limited evidence makes it challenging to determine reliability. OpenCap demonstrated an MAE of 4.1° for 3D joint angles, but higher errors in rotational angles require further validation. OpenPose demonstrated ICCs of 0.89–0.994 for spatiotemporal parameters and MAE &lt; 5.2° for 2D hip and knee joint angles in the sagittal plane (ICCs = 0.67–0.92, CCCs = 0.83–0.979), but ankle kinematics exhibited poor accuracy (ICCs = 0.37–0.57, MAEs = 3.1°-9.77°, CCCs = 0.51–0.936). PEA accuracy depends on camera settings, backbone architecture, and training datasets. This study reviews the accuracy of PEA-based gait analysis systems, supporting future research in gait-related clinical applications of PEA.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 150-160"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Step by adaptive step: How younger and older adults navigate obstacles","authors":"Ashwini Kulkarni ,&nbsp;Chuyi Cui ,&nbsp;Shirley Rietdyk ,&nbsp;Satyajit Ambike","doi":"10.1016/j.gaitpost.2025.04.014","DOIUrl":"10.1016/j.gaitpost.2025.04.014","url":null,"abstract":"<div><h3>Background</h3><div>Younger adults, while approaching and crossing an obstacle, destabilize step length over several steps to ensure accurate foot placement around the obstacle and thereby avoid a trip. Destabilized step length has two potential effects: it facilitates corrections in foot placements to achieve the required accuracy, but it may also impair balance by perturbing the relation between the base of support and the motion or state of the whole-body center of mass. Therefore, destabilized step length in younger adults reflects a greater concern for tripping versus small variations in step length.</div></div><div><h3>Research question</h3><div>Do healthy older adults demonstrate greater step length destabilization than younger adults while approaching and crossing stationary obstacles?</div></div><div><h3>Methods</h3><div>Healthy younger and older adults approached and crossed a stationary visible obstacle multiple times. The across-trial foot placement data were analyzed using the uncontrolled manifold method to obtain the inter-step covariance (ISCz) index for several approach steps and the obstacle crossing step. Higher index value indicates higher step length stability and vice-versa.</div></div><div><h3>Results and significiance</h3><div>Younger and older adults destabilized step length (ISCz index reduced) while approaching and crossing the obstacle (p &lt; .0001). The ISCz index was 14.5 % lower for older adults indicating that they destabilized step length more than younger adults (p = .02). Given the higher costs of a trip-induced fall, the pattern likely represents a rational adaptation by the older adults to avoid tripping. This pattern in the ISCz index could be used to assess the health of the neuromuscular control system in clinical populations.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 192-198"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Joint moments and muscle excitations increase with body-mass normalized backpacks across walking slopes","authors":"Jordan T. Sturdy ,&nbsp;Hedaya N. Rizeq ,&nbsp;Tyler T. Whittier ,&nbsp;Carlie J. Daquino ,&nbsp;Amy Silder ,&nbsp;Anna C. Corman ,&nbsp;Pinata H. Sessoms ,&nbsp;Anne K. Silverman","doi":"10.1016/j.gaitpost.2025.04.007","DOIUrl":"10.1016/j.gaitpost.2025.04.007","url":null,"abstract":"<div><h3>Background</h3><div>Human locomotion is characterized by joint moments and muscle excitations of the leg, which have quantified the demands of backpack loads and sloped walking. However, the combined impact of backpack loads and sloped walking remains poorly characterized, particularly during downhill walking. This study characterized 3D hip and sagittal knee and ankle moments and integrated muscle excitations when walking downhill, level, and uphill while carrying a body-mass normalized backpack load.</div></div><div><h3>Methods</h3><div>Fourteen healthy, active-duty military service members were enrolled in this study. Participants walked on a treadmill under six walking conditions – uphill, level, and downhill (1) with a baseline load, and (2) with a heavy backpack load. Surface EMG, full body motion capture, and ground reaction forces were captured, and lower body moments and muscle excitations were examined. Fixed effects of slope, pack, and the slope-by-pack interaction were evaluated using linear mixed effects models</div></div><div><h3>Results</h3><div>The addition of backpack loads generally resulted in greater joint moments and muscle excitations on all slopes; however, several interaction effects highlight the compounding influence of walking slopes and backpacks. The effect of added backpack mass was greatest during uphill for hip extension and ankle plantarflexion moments. In addition, backpack loads had a greater knee extension moment throughout stance when walking downhill, but level and uphill walking had a knee flexion moment in terminal stance that was not affected by the backpack.</div></div><div><h3>Significance</h3><div>Our overall findings define the biomechanical task demands for sloped walking with a backpack load. These results provide a mechanical context that may be useful for understanding musculoskeletal overuse injury attributed to load carriage.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 234-241"},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of acetabular fracture surgery on gait biomechanics; A prospective longitudinal cohort study","authors":"Neeltje M. Trouwborst ,&nbsp;Chantal M.I. Beijersbergen ,&nbsp;Hester Banierink ,&nbsp;Kaj ten Duis ,&nbsp;Lotte R. Bakker ,&nbsp;Jean-Paul P.M. de Vries ,&nbsp;Frank.F.A. IJpma ,&nbsp;Inge H.F. Reininga ,&nbsp;Juha M. Hijmans","doi":"10.1016/j.gaitpost.2025.04.018","DOIUrl":"10.1016/j.gaitpost.2025.04.018","url":null,"abstract":"<div><h3>Study purpose</h3><div>Acetabular fractures are severe injuries that can result in altered gait patterns. These changes may arise from the injury itself, pain related adaptations, and the impact of surgery. The aim of this study was to gain insight into frontal, sagittal and transverse plane gait deviations in patients after surgically treated acetabular fractures during rehabilitation, compared to healthy controls.</div></div><div><h3>Methods</h3><div>In this prospective longitudinal cohort study instrumented gait analysis was conducted at standardised speed, self-selected speed and fast speed in the patient’s group at 3-, 6- and 12-months post-surgery, while matched healthy controls underwent a single assessment. Spatiotemporal parameters and frontal, sagittal and transverse plane hip, pelvis and thorax kinetics and kinematics were analysed. Statistical analysis was conducted using Statistical Parametric Mapping.</div></div><div><h3>Results and conclusions</h3><div>Fourteen patients surgically treated for an acetabular fracture and fourteen controls were included. At 3 months post-surgery, patients exhibited reduced self-selected gait speed, cadence, and stride length compared to 6- and 12 months of follow-up and compared to the healthy controls. Additionally, hip range of motion and moment were decreased at 3 months but returned to normal levels by 6 months. These findings suggest that the compensatory strategy for offloading the hip joint may involve temporarily reducing spatiotemporal parameters, range of motion, and moment, thereby minimizing the required hip abduction muscle force.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 332-339"},"PeriodicalIF":2.2,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Up and down – The impact of calcaneal fracture on medial gastrocnemius fascicle behavior and ankle biomechanics during heel-rise performance","authors":"Andreas Brand ,&nbsp;Tsubasa Tashiro ,&nbsp;Inga Kröger ,&nbsp;Noriaki Maeda ,&nbsp;Isabella Klöpfer-Krämer ,&nbsp;Andrea Dietrich ,&nbsp;Johannes Gabel ,&nbsp;Peter Augat","doi":"10.1016/j.gaitpost.2025.04.017","DOIUrl":"10.1016/j.gaitpost.2025.04.017","url":null,"abstract":"<div><h3>Background</h3><div>Calcaneal fractures (CF) often result in reduced foot mobility and plantar flexor strength, despite intensive rehabilitation. While treatment mostly focuses on bone restoration, structural and functional adaptation of the ankle plantar flexors during movement is less understood.</div></div><div><h3>Research question</h3><div>To investigate medial gastrocnemius fascicle behavior and ankle biomechanics in patients with CF during bipedal heel-rise.</div></div><div><h3>Methods</h3><div>Repetitive heel-rise was analyzed in 18 patients with unilateral CF (BMI: 27.3 ± 3.2 kgm⁻², Age: 50 ± 13 years) and 18 healthy controls (BMI: 26.3 ± 3 kgm⁻², Age: 48 ± 11 years) using motion capture and ultrasound. Patients were measured 3 and 12 months after surgery. Dynamic gastrocnemius fascicle length, pennation angle, thickness, ankle angle, ground reaction force, heel lift, and Böhler angle were assessed.</div></div><div><h3>Results</h3><div>Between 3 and 12 months, pennation angle in patients increased by up to 33 % (p &lt; 0.05), while fascicle length and thickness remained unchanged. Ankle plantarflexion and heel lift showed no improvement, while ground reaction force and symmetry increased by 12 % and 55 %, respectively. Compared to controls, patient’s fascicle parameters showed no differences, while a reduced maximum plantarflexion and heel lift by up to 41 % remained. Ground reaction force recovered to control levels at 12 months. The average Böhler angle was 21.6° (9.8–41.6°).</div></div><div><h3>Significance</h3><div>Impaired foot stability and alignment originating from altered calcaneal anatomy after fracture, rather than muscle deficits, primarily contribute to a reduced ankle joint function one year post-surgery.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 199-204"},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143854762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Step-time variability is a specific gait characteristic associated with functional disabilities in knee osteoarthritis: The Nagahama study","authors":"Masashi Taniguchi ,&nbsp;Tome Ikezoe ,&nbsp;Tadao Tsuboyama ,&nbsp;Hiromu Ito ,&nbsp;Shuichi Matsuda ,&nbsp;Fumihiko Matsuda ,&nbsp;Noriaki Ichihashi","doi":"10.1016/j.gaitpost.2025.04.013","DOIUrl":"10.1016/j.gaitpost.2025.04.013","url":null,"abstract":"<div><h3>Background</h3><div>Gait characteristics of spatiotemporal parameters of knee osteoarthritis (OA) using large sample of patients with various radiographic severities and asymmetry have not been studied previously.</div></div><div><h3>Objective</h3><div>This study aimed to determine the disease-specific gait characteristics of knee OA and assess the spatiotemporal gait parameters associated with functional disability.</div></div><div><h3>Method</h3><div>The data was extracted from the Nagahama study and included 1591 participants aged ≥ 60 years, who underwent knee radiography and gait analysis. Of these, 998 (62.7 %) were assigned to healthy control group and 593 (37.3 %) to knee OA group. Gait speed, cadence, stride length, step length asymmetry, and step-time variability were measured using wearable inertial sensor. The Knee Scoring System (KSS) was used to assess functional disability. Logistic regression analysis was performed, with group variables as dependent variables and gait parameters as independent variables. In knee OA group, multiple regression analysis was performed with KSS score as dependent variable and gait parameters as independent variables after adjusting for potential confounders.</div></div><div><h3>Results</h3><div>Step-time variability was associated with knee OA (adjusted odds ratio [OR], 1.08; 95 % confidence interval [CI], 1.00–1.15; p = 0.037). Lower gait speed (Beta [B]=13.60; 95 %CI, 4.41–22.80; p = 0.004) and higher step-time variability (B=-0.82; 95 %CI, −1.40 to −0.24; p = 0.005) were associated with a decrease in KSS score in knee OA.</div></div><div><h3>Conclusion</h3><div>These findings suggest that higher step-time variability is a specific gait characteristic of knee OA and is a negative factor associated with functional disabilities. The assessment of step-time variability is a useful indicator for screening abnormal gait patterns in knee OA.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 211-216"},"PeriodicalIF":2.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Locomotor-cognitive dual-tasking is reduced in older adults relative to younger: A systematic review with meta-analysis","authors":"Jona Mustafovska,&nbsp;Peter H. Wilson,&nbsp;Michael H. Cole,&nbsp;Thomas B. McGuckian","doi":"10.1016/j.gaitpost.2025.04.012","DOIUrl":"10.1016/j.gaitpost.2025.04.012","url":null,"abstract":"<div><h3>Background</h3><div>The capacity to dual-task is critically important over the lifespan, enabling an individual to respond to demands in their environment, both safely and efficiently.</div></div><div><h3>Research question</h3><div>Does recent evidence suggest that relative to younger adults, older adults are most disadvantaged when performing locomotor-cognitive dual-tasks under conditions that are more representative of the real-world?</div></div><div><h3>Method</h3><div>A literature search of major electronic databases was conducted to find relevant peer-reviewed papers published since 2011. Thirty-nine studies that compared proportional dual-task costs (pDTC) between older and younger adults on a locomotor-cognitive dual-task were included. Study quality was assessed using the Appraisal tool for Cross-Sectional Studies.</div></div><div><h3>Results</h3><div>pDTC were calculated for a total of 504 motor and 53 cognitive outcomes. Weighted means showed that older adults experienced larger pDTCs than younger adults for motor (mean difference = −6.97) and cognitive (mean difference = −8.15) outcomes. Velocity variability measures produced the largest group difference on motor pDTC (mean difference = −32.83), as did cognitive tasks that targeted arithmetic (mean difference = −18.57) and texting skills (mean difference = −17.43). Cognitive tasks that were ‘most representative’ resulted in the largest age differences on motor pDTC (mean difference = −16.89).</div></div><div><h3>Significance</h3><div>This meta-analysis showed that dual-tasking challenged the ability of older adults to maintain consistency in the sequential timing of their gait. As well, older adults demonstrated greater pDTCs on motor outcomes, especially when the cognitive tasks were more representative of day-to-day activities. Taken together, this suggests that clinical assessments should focus on measures of variability rather than absolute measures of temporal and spatial gait. It is recommended that future research use more representative paradigms that are sensitive to dual-task interference and predictive of real-world behaviour.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 177-191"},"PeriodicalIF":2.2,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143851583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overhead support systems differentially affect gait analysis of overground and treadmill walking","authors":"Thomas E. Augenstein ,&nbsp;Shekoofe Saadat ,&nbsp;Amiya C. Gupta ,&nbsp;Danny Shin ,&nbsp;Olugbenga P. Adeeko ,&nbsp;Edward P. Washabaugh ,&nbsp;Chandramouli Krishnan","doi":"10.1016/j.gaitpost.2025.04.008","DOIUrl":"10.1016/j.gaitpost.2025.04.008","url":null,"abstract":"<div><h3>Background</h3><div>Overhead support or catch systems are frequently used in gait studies involving clinical populations to ensure participant safety. These systems remain slack when the participant is upright and therefore are assumed to not interfere with gait biomechanics. However, these systems follow participant’s transverse motion during walking via rail systems, which could produce additional inertial and frictional forces that affect gait biomechanics.</div></div><div><h3>Objective</h3><div>Quantify the influence of overhead support systems on gait biomechanics during treadmill and overground walking.</div></div><div><h3>Methods</h3><div>We recruited fifteen uninjured adults to perform treadmill and overground walking. In each of these walking conditions, we varied each participant’s walking speed (80, 100, and 120 % of preferred speed) and attachment to an overhead support system. We measured the participants’ joint angles, moments and ground reaction forces using a three-dimensional motion capture system and an instrumented treadmill built into an overground walkway. For overground and treadmill walking, we examined changes in each biomechanical variable across speed and harness conditions using one-dimensional statistical parametric mapping (spm1d).</div></div><div><h3>Results</h3><div>During overground walking, the overhead support system altered ground reaction forces, joint kinematics, and moments, and these effects became more pronounced with increased speed. During treadmill walking, we found very few changes in gait biomechanics resulting from the harness.</div></div><div><h3>Conclusions</h3><div>These results caution the use of experimental paradigms involving overground walking when an overhead support is required, although these results may be less pronounced in clinical populations with slower walking speeds. Overhead support systems can be used during treadmill walking without affecting biomechanical measurements.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 161-169"},"PeriodicalIF":2.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143845049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}