Gait & posture最新文献

{"title":"Movement analysis congress from yesterday to today: Text mining analysis","authors":"Orhan Ozturk ,&nbsp;Mansur Alp Tocoglu","doi":"10.1016/j.gaitpost.2025.04.023","DOIUrl":"10.1016/j.gaitpost.2025.04.023","url":null,"abstract":"<div><h3>Background</h3><div>Despite the constant publication of motion analysis studies in the literature, the current focus of motion analysis laboratories is often showcased at conferences. Papers and abstracts presented at these events are a crucial source of information for scientists regarding the direction of research in the field. The most comprehensive congress in Europe for presenting current movement analysis studies for adults and children is the European Society for Movement Analysis in Adults and Children (ESMAC)</div></div><div><h3>Research question</h3><div>How have motion analysis study trends changed in the last 15 years based on the papers presented at ESMAC congresses?</div></div><div><h3>Methods</h3><div>The titles of abstracts presented at the ESMAC congress between 2008 and 2023 were included in the study. Text mining was performed using the k-means algorithm in Python. Trend changes were analyzed in three groups of five years each.</div></div><div><h3>Results</h3><div>A total of 3038 paper titles presented at the ESMAC congress were included in the study. The most prominent term in the word cloud obtained from the paper titles was 'Cerebral Palsy.' The trending topics in each 5-year period were Cerebral Palsy, Gait Analysis, Balance, Foot, and Knee. The highest number of studies was presented in 2019 (n = 334), and the lowest in 2014 (n = 134).</div></div><div><h3>Significance</h3><div>While Cerebral Palsy remains a central focus in movement analysis, the emphasis has shifted over time. Technological advances have significantly enhanced motion analysis, with trending topics in each 5-year period.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 1-8"},"PeriodicalIF":2.2,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891546","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":"Dominant or nondominant leg, which one is used to recover balance after a simulated slip during standing?","authors":"Diané Brown,&nbsp;Jiyun Ahn,&nbsp;Caroline Simpkins,&nbsp;Feng Yang","doi":"10.1016/j.gaitpost.2025.04.028","DOIUrl":"10.1016/j.gaitpost.2025.04.028","url":null,"abstract":"<div><h3>Background</h3><div>Standing-slips are used as a fall reduction training modality or fall risk assessment tool. It is unclear whether the trainees prefer one leg over the other to recover their balance after a standing-slip.</div></div><div><h3>Research questions</h3><div>1) Do the trainees always adopt the dominant leg to recover balance following an unexpected standing-slip perturbation? and 2) What are the determinants for the recovery leg selection?</div></div><div><h3>Methods</h3><div>Eighty-six participants were exposed to a large-scale slip with varying peak belt speed while standing on a treadmill. Depending on the agreement between the recovery leg and the dominant leg, 54 participants were classified into the congruent group and the other 32 in the conflictive group. The demographic information and peak belt speed were compared between these two groups.</div></div><div><h3>Results</h3><div>The peak belt speed was significantly different between the two groups (1.47 ± 0.49 m/s for conflictive vs. 1.26 ± 0.37 m/s for congruent, <em>p</em> = 0.026). Individuals tended to use their dominant leg to recover balance after the slip when the peak belt speed was small. The selection of the recovery leg became random when the peak belt speed was increased. The receiver operating characteristics analysis revealed a high accuracy of the peak belt speed in predicting the group classification (the area under the curve = 0.891). The Youden index identified the cutoff value of the peak belt speed (1.2 m/s) that maximized the prediction accuracy.</div></div><div><h3>Significance</h3><div>The identified threshold of the peak belt speed could provide practical guidance for designing standing-slip-based perturbation training programs for diverse populations.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 19-24"},"PeriodicalIF":2.2,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891479","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":"Pregnant and postpartum women gait kinematics parameters: A systematic review and meta-analysis","authors":"Heloisa da Costa Souza ,&nbsp;Rayane Quintão Castro ,&nbsp;Maria Eduarda de Oliveira Gonçalves ,&nbsp;Gabriela Vieira Caneco ,&nbsp;Angélica Lorena dos Santos Oliveira ,&nbsp;Letícia Tagliati Nogueira ,&nbsp;Nathalia de Souza Abreu Freire ,&nbsp;Fabiana Roberta Nunes Carnaúba ,&nbsp;Diogo Simões Fonseca","doi":"10.1016/j.gaitpost.2025.04.030","DOIUrl":"10.1016/j.gaitpost.2025.04.030","url":null,"abstract":"<div><h3>Background</h3><div>During pregnancy, adaptive gait mechanisms are hypothesized to develop to accommodate physiological changes from fetal growth.</div></div><div><h3>Research question</h3><div>What are the average values and variations of gait kinematic and spatiotemporal parameters in pregnant and postpartum women?</div></div><div><h3>Methods</h3><div>A bibliographic search was conducted in Scopus, PubMed, Web of Science, and Embase up to February 3rd, 2025. Observational studies and randomized controlled trials assessing gait kinematic or spatiotemporal parameters in pregnant and postpartum women were included. Risk of bias was assessed using JBI Critical Appraisal Tools. Standardized mean difference and confidence intervals compared pregnancy, postpartum, and control groups. The I² index assessed study heterogeneity; a random-effects model was used if I² exceeded 40 %.</div></div><div><h3>Results</h3><div>Thirty-two studies were included. Meta-analyses were performed for sagittal and transverse pelvic ROM, gait speed, cadence, stride length, double support time, step length, and step width. No significant differences were found in sagittal and transverse pelvic ROM between the second and third trimesters. Pregnant women walked more slowly than postpartum and non-pregnant women, but no significant differences in gait speed, cadence, stride length, step length, double support time, or step width were found between trimesters. Findings from non-pooled studies indicated increased pelvic tilt, knee flexion, and lateral foot progression angle, with decreased hip extension and ankle plantarflexion. Pregnant women walked with reduced step length, swing phase, and single support time, alongside increased double support duration. These changes were most prominent in the 3rd trimester, some appearing in the 2nd trimester, and tended to lessen postpartum, though spatiotemporal disparities remained compared to non-pregnant women. The persistence of kinematic differences remains uncertain.</div></div><div><h3>Significance</h3><div>This study enhances understanding of biomechanical gait adaptations during pregnancy and postpartum, providing a foundation for more effective, patient-centered care.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 25-36"},"PeriodicalIF":2.2,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891477","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":"Predictors of gait speed post-stroke: A systematic review and meta-analysis","authors":"Amie Marie Jasper ,&nbsp;Rolando T. Lazaro ,&nbsp;Saurabh P. Mehta ,&nbsp;Lindsay A. Perry ,&nbsp;Kathryn Swanson ,&nbsp;Kyle Reedy ,&nbsp;Jeffrey Schmidt","doi":"10.1016/j.gaitpost.2025.04.029","DOIUrl":"10.1016/j.gaitpost.2025.04.029","url":null,"abstract":"<div><h3>Background</h3><div>While gait speed serves as a clinical marker and health indicator, there is a paucity of a consolidated review of the factors that are most predictive of gait speed across the clinical stages of stroke recovery.</div></div><div><h3>Research question</h3><div>What are predictors of gait speed in the acute, subacute and chronic phase of stroke, categorized according to International Classification of Functioning, Health, and Disability (ICF)?</div></div><div><h3>Methods</h3><div>A systematic search was conducted using four electronic databases following the PRISMA guideline. Included studies were cross-sectional, cohort and case-control reporting the predictors of gait speed, published from January 2000 to July 2024, and involved participants 18 years or older with diagnosis of stroke. Four meta-analyses were performed.</div></div><div><h3>Results</h3><div>The initial search yielded 311 articles. After screening, 32 articles were included in the final analysis. In all clinical stages of stroke, age was the most common predictor of gait speed, followed by admission walking speed, Berg Balance Scale (BBS) score and time since onset. Knee extensor strength emerged as a predictor in three studies, all in the chronic stage. The meta-analyses indicated that older age was associated with slower discharge gait speed (SMD: −0.004 [-0.01, −0.001]; p &lt; 0.0001) while higher BBS scores at admission were associated with a larger change in gait speed between admission and discharge (SMD: 0.17 [0.06, 0.28]; p = 0.002). <em>Significance</em><strong>.</strong> Understanding the modifiable factors can help clinicians target interventions and seek additional care while non-modifiable factors can guide the prognosis of walking function in people post stroke.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 70-77"},"PeriodicalIF":2.2,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899616","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":"Enhancing the static stability of older adults: A study on foot sole vibration intensities and locations","authors":"Yunqi Tang ,&nbsp;Peiyao Liang ,&nbsp;Pui Wah Kong ,&nbsp;Hui Ren ,&nbsp;Shizhe Cheng ,&nbsp;Xinyue Li ,&nbsp;Rong Wang ,&nbsp;Meixi Li ,&nbsp;Lin Guo ,&nbsp;Yuhong Niu","doi":"10.1016/j.gaitpost.2025.04.027","DOIUrl":"10.1016/j.gaitpost.2025.04.027","url":null,"abstract":"<div><h3>Background</h3><div>Falls are a major public health concern for older adults, driven by age-related declines in somatosensory feedback which is critical for postural stability. Plantar vibratory stimulation may enhance balance, yet the optimal parameters remain unclear.</div></div><div><h3>Research question</h3><div>How may different foot sole vibration intensities and locations improve static stability in older adults?</div></div><div><h3>Methods</h3><div>Eighteen healthy older adults (aged 66.6 ± 3.1 years) received mechanical vibrations at 0 %, 90 %, and 130 % of their sensory threshold, applied to the forefoot &amp; heel (F&amp;H) and midfoot (MF) of both feet, in eyes-open (EO) and eyes-closed (EC) conditions. Static stability was assessed using center of pressure (COP) metrics, including sway velocity, average sway amplitude, and sway area in the anterior-posterior (AP) and mediolateral (ML) directions.</div></div><div><h3>Results</h3><div>Compared to 0 %, both 90 % and 130 % intensities significantly reduced total sway velocity, AP sway velocity, ML sway velocity, and AP sway amplitude (p &lt; 0.05) in the EO condition. In the EC condition, these effects persisted (p &lt; 0.05), with the additional benefits of reduced ML sway amplitude and total sway area (p &lt; 0.05), and no consistent differences between locations (F&amp;H vs. MF).</div></div><div><h3>Significance</h3><div>Moderate vibration intensities enhance static stability across different foot sole locations, suggesting that footwear and insoles incorporating vibration may serve as potential strategies for fall prevention among older adults.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 37-43"},"PeriodicalIF":2.2,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143891480","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 influence of concussion history on turning gait performance","authors":"Eric J. Shumski ,&nbsp;Deborah A. Barany ,&nbsp;Julianne D. Schmidt ,&nbsp;Robert C. Lynall","doi":"10.1016/j.gaitpost.2025.04.026","DOIUrl":"10.1016/j.gaitpost.2025.04.026","url":null,"abstract":"<div><h3>Objective</h3><div>Straight path gait under dual-task conditions recovers ∼2 months post-concussion. However, turning gait is more complex than straight path gait and may take longer to recover, especially under dual-task conditions. Therefore, the purpose of this study was to compare how individuals with and without a concussion history may differ in (1) turning gait spatiotemporal characteristics during single- and dual-task (serial 7 s) conditions, (2) the dual-task cost on the spatiotemporal characteristics and cognitive outcomes, and (3) the subjectively perceived task demands of single- and dual-task turning gait.</div></div><div><h3>Methods</h3><div>Twenty-three individuals with (age: 20.2 ± 1.9 years, BMI: 22.9 ± 2.7 kg/m², 60.9 % female, 44.7months [95 % CI=23.6, 65.7] months post-concussion) and 23 individuals without (age: 20.7 ± 1.7years, BMI: 22.4 ± 2.3 kg/m², 60.9 % female) a concussion history participated. Participants completed 3 trials of single-task serial subtraction, single-task figure-of-8 gait, and dual-task figure-of-8 gait. After each walking condition, participants completed the NASA Task Load Index to measure task demands.</div></div><div><h3>Results</h3><div>There was no significant group by cognitive load interaction for turning gait metrics (p-range=0.371–0.889) or task demands (i.e., NASA Task Load Index) (p = 0.598). There was no difference between groups for dual-task cost cognitive or gait outcomes (p-range=0.227–0.937). All participants displayed slower gait velocity (p &lt; 0.001, Hedge’s g=1.149), greater double leg support percent (p &lt; 0.001, Hedge’s g= 0.649), and wider step width (p = 0.003, Hedge’s g=0.644) during dual-task versus single-task figure-of-8 gait. Individuals with a concussion history displayed shorter step length compared to individuals without a concussion history (p = 0.014, Hedge’s g=0.664). All participants reported significantly lower task demands during single-task versus dual-task gait conditions (p &lt; 0.001, Hedge’s g=1.532).</div></div><div><h3>Conclusion</h3><div>Those with a concussion history demonstrated moderately shorter step length, but the lack of any other significant findings limits clinical applicability. Greater perceived dual-task demands can be used to ensure more self-perceived challenges are being utilized during rehabilitation<strong>.</strong></div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 93-100"},"PeriodicalIF":2.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917702","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":"Construct validity of markerless three-dimensional gait biomechanics in healthy older adults","authors":"Andreia Carvalho ,&nbsp;Jos Vanrenterghem ,&nbsp;Sílvia Cabral ,&nbsp;Ana M. d'Assunção ,&nbsp;Filomena Carnide ,&nbsp;António P. Veloso ,&nbsp;Vera Moniz-Pereira","doi":"10.1016/j.gaitpost.2025.04.022","DOIUrl":"10.1016/j.gaitpost.2025.04.022","url":null,"abstract":"<div><h3>Background and aim</h3><div>Gait changes due to aging can result in functional limitations and a higher risk of falls, with older adults showing alterations in joint angles and moments. Marker-based gait analysis is not widely used in clinical settings due to its complexity and discomfort, especially in older adults. Recent advances in markerless motion capture, such as Theia3D, offer a promising alternative. This study aims to assess the construct validity of a markerless motion capture system for gait analysis in healthy older adults.</div></div><div><h3>Methods</h3><div>A cross-sectional study included 30 healthy community-dwelling older adults. Gait data was collected using marker-based and markerless motion capture systems in randomized order, with participants wearing tight-fitting minimal clothes plus 46 reflective markers attached, or their usual clothes, respectively. Joint kinematics (including range of motion) and kinetics were analyzed, and correlations between methods (Rxy) were assessed. Bland&amp;Altman analysis was used to measure agreement. Root-mean-square differences (RMSD) were computed. Acceptable thresholds were set at ≤ 5º for kinematic and at ≤ 10 % of signal amplitude for kinetics.</div></div><div><h3>Results</h3><div>Strong correlations (Rxy≥0.7) were found between the systems for sagittal plane kinematics (except for the pelvis), particularly for knee and ankle joints. A low agreement was detected in sagittal plane hip and pelvis kinematics, along with RMSD exceeding 5º. Weaker correlations and poor agreement were observed for transverse and frontal plane motions. Overall strong correlations were found for kinetics, except for the joint ankle inversion-eversion moment, and poor agreement for the frontal and transverse planes.</div></div><div><h3>Conclusion</h3><div>Overall markerless motion capture demonstrated good construct validity for measuring sagittal plane gait lower-limb gait kinematics (excluding pelvis) and kinetics in healthy older. However, considering the agreement between methods and the results for the other movement planes, further validation is required before markerless and marker-based systems can be used interchangeably in gait assessments.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 217-225"},"PeriodicalIF":2.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874723","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":"Effects of rocker-bottom shoes on the gait biomechanics of running and walking: A systematic review","authors":"Farhan Munim ,&nbsp;Abu Jor ,&nbsp;Tasmia Nourin Pollen ,&nbsp;Shakawath Hosen Opu ,&nbsp;Wing-Kai Lam ,&nbsp;Fan Gao ,&nbsp;Toshiki Kobayashi","doi":"10.1016/j.gaitpost.2025.04.019","DOIUrl":"10.1016/j.gaitpost.2025.04.019","url":null,"abstract":"<div><h3>Background</h3><div>There is growing evidence demonstrating the effectiveness of rocker-bottom shoes regarding repetitive mechanical stress on the musculoskeletal system during locomotion.</div></div><div><h3>Research question</h3><div>Is there any effect of rocker-bottom shoes on the lower extremity biomechanics during walking and running in healthy individuals?</div></div><div><h3>Methods</h3><div>Databases including PubMed, Scopus, Web of Science, Embase, ProQuest, Cochrane, and CINAHL were searched from inception until March 2024. Twenty-six eligible studies that examined the effects of rocker-bottom shoes on gait parameters were included. The modified Downs &amp; Black index was used to assess the methodological quality of the included studies.</div></div><div><h3>Results</h3><div>Seventeen studies with rocker-bottom profiles at forefoot-only and nine studies with rearfoot-to-forefoot profiles were identified. Both forefoot-only (toe apex position between 30 % and 50 % and toe spring 30–50 mm/ toe rocker angle 7–30°) and rearfoot-to-forefoot (heel apex position between 18 % and 40 %, heel spring 20–40 mm, heel rocker angle 7–15°) rocker-bottom shoes were effective in redistributing plantar pressure from rearfoot to midfoot and forefoot regions. They also reduced peak dorsiflexion, peak plantar flexor moment, sagittal ankle ROM, and peak knee flexion compared to non-rocker shoes.</div></div><div><h3>Significance</h3><div>Although rocker-bottom shoes appear effective in alleviating overuse injury via offloading forefoot plantar pressure and improving sagittal plane ankle kinematics and kinetics, caution should be taken regarding design specifications, particularly mass, thickness, and material properties of the rocker-bottom shoes.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 44-63"},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895828","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":"Stage-specific gait deviations in individuals with hip osteoarthritis","authors":"Ransi S.S. Subasinghe Arachchige ,&nbsp;Maria Constantinou ,&nbsp;Yi Man Yeung ,&nbsp;Xin He ,&nbsp;Michael T.Y. Ong ,&nbsp;Patrick S.H. Yung ,&nbsp;Roy T.H. Cheung","doi":"10.1016/j.gaitpost.2025.04.025","DOIUrl":"10.1016/j.gaitpost.2025.04.025","url":null,"abstract":"<div><h3>Objective</h3><div>This cross-sectional study examined stage-specific biomechanical differences in individuals with hip osteoarthritis (OA) compared to healthy controls, aiming to identify markers of disease severity and progression.</div></div><div><h3>Methods</h3><div>Thirty participants were categorised into three groups: healthy controls, radiographic early-to-moderate hip OA, and radiographic moderate-to-severe hip OA. Spatiotemporal, kinematic, and kinetic parameters were extracted and a one-way ANOVA was used to detect group differences. Spearman’s rho correlations evaluated associations between key biomechanical parameters and the Hip Disability and Osteoarthritis Outcome Score (HOOS).</div></div><div><h3>Results</h3><div>Participants with moderate-to-severe hip OA exhibited significantly lower gait speed (p &lt; 0.001, Cohen’s d = 2.08), cadence (p = 0.037, Cohen’s d = 1.31), step length (p &lt; 0.001, Cohen’s d = 1.90), stride length (p &lt; 0.001, Cohen’s d = 1.99), early stance hip adduction moment (HAM) (p &lt; 0.001, Cohen’s d = 3.13), hip flexion moment (p &lt; 0.001, Cohen’s d = 3.42), hip extension moment (p = 0.016, Cohen’s d = 1.35), and knee flexion moment (p = 0.012, Cohen’s d = 1.52), alongside increased step width (p = 0.008, Cohen’s d = -1.42), compared to healthy controls. Early-to-moderate hip OA participants also demonstrated significantly lower gait speed (p = 0.008, Cohen’s d = 1.89), step length (p = 0.014, Cohen’s d = 1.56), stride length (p = 0.008, Cohen’s d = 1.72), early stance HAM (p = 0.044, Cohen’s d = 1.09), and hip flexion moment (p &lt; 0.001., Cohen’s d = 2.93) relative to controls. Early stance HAM further distinguished between early and advanced stages of the disease (p = 0.016, Cohen’s d = 1.25) and was positively correlated with HOOS (r = 0.604, p &lt; 0.001).</div></div><div><h3>Conclusion</h3><div>Distinct HAM differences in early stance of gait differentiate hip OA stages. Monitoring this potential biomechanical marker may enable early detection and targeted interventions to optimise gait mechanics and improve outcomes in individuals with hip OA.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"120 ","pages":"Pages 226-233"},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877084","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":"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}