Gait & posture最新文献

{"title":"Walking gait propulsive force in individuals with Parkinson’s disease following overground locomotor training: A pilot study","authors":"Thomas A. Corfman ,&nbsp;Rosemary D. Higgins ,&nbsp;Dan Ding ,&nbsp;Panagiota Kitsantas ,&nbsp;Andrew A. Guccione","doi":"10.1016/j.gaitpost.2025.07.001","DOIUrl":"10.1016/j.gaitpost.2025.07.001","url":null,"abstract":"<div><h3>Background</h3><div>Walking is often impaired in individuals with Parkinson’s disease (PD). Overground locomotor training (OLT) promotes improved ambulation in this population, but its effects on walking propulsive force remain unknown.</div></div><div><h3>Research question</h3><div>What are the effects of OLT on walking propulsive force in individuals with PD?</div></div><div><h3>Methods</h3><div>A pre-experimental, pilot study, eleven participants (age 69.7 ± 4.9 years) with mild to moderate PD (Hoehn &amp; Yahr stage 1–3), completed 12 weeks of OLT. Outcomes included peak anterior ground reaction force (AGRF), AGRF rise time (RT), push-off impulse, and push-off duration; peak posterior ground reaction force (PGRF); single stance duration, center of mass (COM) to center of pressure (COP) distance at push-off; and walking speed. Pre- and post-intervention outcome differences were tested, and effect sizes were calculated.</div></div><div><h3>Results</h3><div>Following OLT, significant differences were found for RT of the AGRF (p = .015, Cohen’s d=.879), push-off impulse (p = .026, Cohen’s d=.789), push-off duration (p = .021, <em>r</em> = .697), single stance duration (p = .004, <em>r</em> = .857), and walking speed (p = .012, Cohen’s d=1.18). No significant differences were found for peak AGRF, peak PGRF, or COM-COP distance.</div></div><div><h3>Significance</h3><div>Results suggest OLT improved some aspects of walking ability in individuals with PD. Participants increased walking speed, spent less time in stance phase and push-off duration and decreased the RT of the AGRF. Participants exhibited a quicker, more powerful AGRF with no change in peak AGRF or push-off posture. The RT of the AGRF may be an important yet understudied determinant of propulsive force generation in this population.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 106-111"},"PeriodicalIF":2.2,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579912","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":"Postural control investigation in postmenopausal women with and without osteoporosis: The relationship between the center of pressure variability and weight bearing asymmetry index in quiet standing","authors":"Sanaz Mohebi ,&nbsp;Giti Torkaman ,&nbsp;Fariba Bahrami","doi":"10.1016/j.gaitpost.2025.07.307","DOIUrl":"10.1016/j.gaitpost.2025.07.307","url":null,"abstract":"<div><h3>Introduction</h3><div>Postural instability is a key predictor of falls. This study explored center of pressure (CoP) variability using linear and nonlinear parameters. It examined how Weight-Bearing Asymmetry (WBA) relates to postural stability, offering insights into fall mechanisms in postmenopausal osteoporotic women.</div></div><div><h3>Methods</h3><div>Thirty-four postmenopausal women, aged 57.10 ± 4.49, BMI 29.11 ± 4.76 Kg/m², non-exercising, participated in the study and were divided into two groups based on their lumbar T-score: the osteoporotic (n = 17, T-score ≤ −2.5) and the non-osteoporotic (n = 17, T-score &gt; −1). The fall efficacy scale International (FES_I) was administered through an interview. Isometric strength of the lower extremity muscles was measured through digital hand-held dynamometer, and CoP trajectories were recorded to extract linear and non-linear parameters. Simultaneously, the subjects' base of support (BoS) was tracked using a motion capture system.</div></div><div><h3>Results</h3><div>No significant differences were found in age and BMI between groups. The osteoporotic group demonstrated significantly higher FES_I scores, reduced hip abductor strength, increased standard deviation (SD) of CoP sway velocity and displacement, and decreased CoP entropy in the frontal plane compared to the non-osteoporotic group. Additionally, osteoporotic women exhibited a pronounced WBA, favoring the non-dominant side, whereas non-osteoporotic women showed a less marked degree of WBA.</div></div><div><h3>Significance</h3><div>It is concluded that the reduced CoP entropy and increased WBA in the frontal plane may represent central nervous system strategies aimed at minimizing unpredictability in postural control during quiet standing. These adjustments may also provide the necessary stability for dynamic tasks in osteoporotic women, warranting further investigation.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 78-84"},"PeriodicalIF":2.2,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562884","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":"A physics-informed deep learning approach to predicting bilateral ground reaction forces and centre of pressure from a single forceplate during gait","authors":"Cheng-Hao Yu ,&nbsp;Shiuan-Huei Lu ,&nbsp;Yi-Fu Lu ,&nbsp;Kuan-Wen Wu ,&nbsp;Yi-Ling Lu ,&nbsp;Jr-Yi Wang ,&nbsp;Ting-Ming Wang ,&nbsp;Tung-Wu Lu","doi":"10.1016/j.gaitpost.2025.07.005","DOIUrl":"10.1016/j.gaitpost.2025.07.005","url":null,"abstract":"<div><h3>Background</h3><div>Measuring bilateral ground reaction forces (GRFs) and centre of pressure (COP) is essential in gait analysis, requiring subjects to step each foot sequentially onto a separate forceplate. However, this requirement often causes multiple trial attempts, especially in patients with neuromusculoskeletal disorders. Consciously targeting the forceplates could also alter walking mechanics, leading to unnatural gait patterns.</div></div><div><h3>Research question</h3><div>This study aimed to (1) develop a novel physics-informed residual recurrent neural network (PI-ResRNN) to predict bilateral GRF and COP during gait using data from a single forceplate and (2) evaluate its accuracy against ground truth obtained across subject groups of different ages and pathologies.</div></div><div><h3>Methods</h3><div>Forceplate data from 315 participants, namely healthy participants and patients with six types of neuromusculoskeletal disorders, was collected. Data from 6765 trials was used to train and validate the PI-ResRNN model to decompose GRF and COP for each foot during the double-contact phase of walking. Model-predicted COP and GRFs were evaluated against the ground truth using root-mean-square errors (RMSE) and relative RMSE (rRMSE), respectively.</div></div><div><h3>Results</h3><div>All predicted variables from the PI-ResRNN model demonstrated high consistency with the ground truth, with mean rRMSE values below 0.34 %, 0.38 %, and 0.56 % in the vertical, anteroposterior, and mediolateral GRFs, respectively, and mean RMSE values for COP below 3.0 mm. The model effectively identified statistical between-group differences compared with the ground truth.</div></div><div><h3>Significance</h3><div>The proposed model provides a practical and accurate approach for obtaining bilateral GRF and COP using a single forceplate, benefiting gait analysis in populations with mobility impairments.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 50-57"},"PeriodicalIF":2.2,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557109","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":"SynergyFF: A single shooting method for simulating crouch gait using muscle synergy feedforward control as a CPG","authors":"Haoran Li,&nbsp;Qiguo Rong","doi":"10.1016/j.gaitpost.2025.07.003","DOIUrl":"10.1016/j.gaitpost.2025.07.003","url":null,"abstract":"<div><h3>Background</h3><div>The central pattern generator (CPG) is a functional network responsible for the creation of motor patterns. It has been suggested that a locomotor CPG consists of a basic rhythm generator and an interneuronal network, essentially implementing muscle synergy. Predictive simulations without tracking experimental data have been used to study gait pathologies, and to explain the causal-effect relationship between muscle deficiencies and abnormal gaits. However, frequent stiff-knee and crouch gaits have proven difficult to simulate when performing single shooting predictive simulations of bilateral plantarflexor weakness.</div></div><div><h3>Methods</h3><div>We trained a musculoskeletal model with 9 degrees of freedom and 14 Hill-type musculotendon actuators to walk by optimizing the parameters of the controller with respect to an objective function. We developed a single shooting predictive simulation method using muscle-synergy feedforward control (called the SynergyFF method) as the CPG and explored its advantages.</div></div><div><h3>Results</h3><div>When studying gaits associated with plantarflexor weakness, our SynergyFF model was able to simulate crouch gait that could not be simulated by the classical reflex-based model. Our model was also able to simulate calcaneal and stiff-knee gaits. The success of our simulations was primarily driven by more accurate modeling of the knee flexion moment.</div></div><div><h3>Conclusions</h3><div>The CPG based on synergy hypothesis was able to produce realistic simulations of abnormal gaits. We attribute this result to the critical role played by muscle synergy in our framework for the generation of crouch gait. More generally, our simulations provide support for the existence of CPG and the hypothesis of muscle synergy.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 26-37"},"PeriodicalIF":2.2,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549285","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":"Transverse plane kinematics between walking and running change frequently for children and young adults with idiopathic torsional issues","authors":"Mitchell Maniatopoulos ,&nbsp;Ted Sousa ,&nbsp;Mark L. McMulkin","doi":"10.1016/j.gaitpost.2025.06.020","DOIUrl":"10.1016/j.gaitpost.2025.06.020","url":null,"abstract":"<div><h3>Background</h3><div>Idiopathic excessive femoral or tibial torsion issues are common concerns leading to gait deviations. Instrumented gait analysis can be an important tool for determining lower limb transverse rotations when walking and running. The purpose of this study is to quantify transverse plane changes occurring in children and young adults with idiopathic excessive femoral or tibial torsional concerns when walking versus running.</div></div><div><h3>Methods</h3><div>A retrospective study of children and young adults with idiopathic femoral or tibial torsional concerns was conducted on walking and running kinematics. A change in rotation of over ten degrees in the transverse plane was considered significant based on control data.</div></div><div><h3>Results</h3><div>328 participants completed a gait analysis study. 145/328 (44.2 %) displayed a meaningful rotational change in gait (in at least one level of foot, hip or pelvis) when running. For foot progression and hip rotation, participants with an internal femoral or tibial concern displayed an outward change when running. Participants with external femoral or tibial concerns, had a more inward change when running. When measuring pelvic rotation, participants with a change in running showed a more pronounced external change, regardless of diagnosis.</div></div><div><h3>Conclusion</h3><div>Children and young adults with idiopathic femoral or tibial torsional concerns altered their transverse plane gait angles 44 % of the time, tending to change more often in the opposite direction of their diagnosis. Due to common rotational changes, the collection of running kinematics, in addition to walking, are important for treatment decision making for idiopathic femoral or tibial torsional concerns.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 45-49"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557108","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":"Walking and running in people who are hypermobile: A scoping review","authors":"Joshua Hook ,&nbsp;Alyse Kendall ,&nbsp;Annie Chappell","doi":"10.1016/j.gaitpost.2025.06.013","DOIUrl":"10.1016/j.gaitpost.2025.06.013","url":null,"abstract":"<div><h3>Objective</h3><div>Impairments in connective tissue, skeletal muscle and neurological function contribute to gait dysfunction in people with generalised joint hypermobility (GJH), leading to significant activity limitation across the lifespan. Understanding differences between hypermobile and non-hypermobile gait may lead to more effective assessment and treatment strategies. The objectives of this scoping review were: 1) To synthesise and appraise the evidence relating to walking and running in people who are hypermobile, 2) identify gaps in the literature, and 3) provide direction for future research.</div></div><div><h3>Methods</h3><div>A search of 6 electronic databases was conducted in April 2024. Papers were assessed for eligibility by 2 reviewers and were included if they met the following criteria: 1) Include a population with generalised joint hypermobility, and 2) report outcomes relating to walking or running gait. Study quality was assessed using a modified version of the Downs and Black quality appraisal checklist.</div></div><div><h3>Results</h3><div>The search revealed 3543 papers. Following title and abstract screening, 50 papers were included in the final review. On quality appraisal, observational papers rated from poor to good, while interventional papers rated from moderate to good. Studies of gait analysis reporting spatiotemporal, kinematic, and kinetic results were most common, followed by functional measures and outcomes relating to interventions. A narrative analysis was conducted as the diversity of the studies prevented meta-analysis.</div></div><div><h3>Conclusion</h3><div>No papers related to hypermobile running gait. In studies of walking, heterogeneity in inclusion criteria and outcome measures limited comparability between studies. Of the numerous statistically significant outcomes presented in the 51 papers, clinical relevance was rarely reported and was found to be difficult to measure.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 58-77"},"PeriodicalIF":2.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562831","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 divided attention on kinematic adaptations during obstacle-crossing in mild cognitive impairment","authors":"Shiuan-Huei Lu ,&nbsp;Yi-Chun Kuan ,&nbsp;Ting-Ming Wang ,&nbsp;Kuan-Wen Wu ,&nbsp;Tung-Wu Lu","doi":"10.1016/j.gaitpost.2025.06.022","DOIUrl":"10.1016/j.gaitpost.2025.06.022","url":null,"abstract":"<div><h3>Objective</h3><div>Older adults with mild cognitive impairment (MCI) exhibit memory deficits and impaired postural control, increasing their fall risk, especially during obstacle negotiation. The study aimed to examine the end-point control and kinematic changes of the pelvis-leg apparatus in older adults with MCI during dual-task obstacle crossing, and to compare these changes across different tasks and obstacle heights.</div></div><div><h3>Methods</h3><div>Eighteen older adults with single-domain amnestic MCI walked and crossed at three obstacle heights under single-task and cognitive-motor dual-task conditions. Pelvis orientations and lower-limb joint angles and associated end-point parameters, such as leading and trailing toe-obstacle clearances and crossing speeds were measured. Two-way analyses of variance were used to study within-subjects (task and obstacle height) effects on the variables.</div></div><div><h3>Results</h3><div>Dual-task obstacle crossing led to significantly decreased crossing speeds and increased both leading and trailing toe-obstacle clearances (p &lt; 0.05). Compared to single task, greater pelvic anterior tilt, upward list, hip flexion and abduction, and knee flexion in the swing limb, along with greater stance hip flexion were found during leading-limb crossing (p &lt; 0.05). During trailing-limb crossing, greater pelvic posterior tilt and swing ankle dorsiflexion, but decreased pelvic upward list were found during dual task (p &lt; 0.05).</div></div><div><h3>Conclusions</h3><div>Dual-task obstacle crossing induces significant kinematic adaptations in older adults with MCI, reflecting altered postural adjustments and end-point control. Monitoring these kinematic adaptations under dual-task obstacle crossing could serve as a valuable tool for assessing functional performance in MCI.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 17-25"},"PeriodicalIF":2.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549288","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":"Foot kinematics and running dynamics in children and adolescents with flexible flatfoot","authors":"Harald Böhm ,&nbsp;Vivien Schoormann ,&nbsp;Nathalie Alexander ,&nbsp;Axel Schäfer","doi":"10.1016/j.gaitpost.2025.06.021","DOIUrl":"10.1016/j.gaitpost.2025.06.021","url":null,"abstract":"<div><h3>Background</h3><div>Flexible flatfoot (FFF) is prevalent in children and adolescents, often leading to pain and limited sports performance. Running poses unique challenges for individuals with FFF due to altered biomechanics, which may increase discomfort and injury risk. While adult studies highlight running-related foot dynamics, research on children and adolescents with FFF remains limited.</div></div><div><h3>Research question</h3><div>How do running dynamics differ between children and adolescents with FFF and those with normally developed feet (NF), and how does running type (rearfoot vs. forefoot) influence these dynamics?</div></div><div><h3>Methods</h3><div>This study included 84 children and adolescents (7–17 years) with FFF and 53 with NF. Participants underwent clinical assessments and instrumented gait analysis, capturing kinematic and kinetic data during barefoot running at self-selected speeds. Analyses examined the relationship between passive ankle dorsiflexion and running type, as well as foot shock absorption during impact and propulsion during push-off. Two-factor ANOVA compared foot conditions and running types.</div></div><div><h3>Results</h3><div>FFF participants showed reduced passive ankle dorsiflexion, especially in habitual forefoot runners, with forefoot running less common in the FFF group (31 %) compared to NF (53 %). Forefoot runners exhibited greater rearfoot eversion excursion and velocity, but these differences were not significant between FFF and NF. Rearfoot runners demonstrated higher peak loading rates across both groups. FFF participants also had lower ankle strength, hindfoot inversion velocity at push-off, and generated reduced ankle moments and energy for propulsion compared to NF.</div></div><div><h3>Significance</h3><div>This study identifies biomechanical differences in individuals with FFF using a forefoot strike pattern, which may influence loading patterns. Although injury risk was not directly assessed, future research could explore whether improving ankle strength and flexibility may help mitigate potential disadvantages in FFF.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"122 ","pages":"Pages 1-9"},"PeriodicalIF":2.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535575","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":"Inter-segmental foot motion during gait in end-stage lesser tarsometatarsal joint osteoarthritis: A comparative study using multi-segment foot model","authors":"Jahyung Kim ,&nbsp;Min Gyu Kyung ,&nbsp;Yeongseong Yoon ,&nbsp;Yong Cheol Hong ,&nbsp;Kyoung Min Lee ,&nbsp;Dong Yeon Lee","doi":"10.1016/j.gaitpost.2025.06.017","DOIUrl":"10.1016/j.gaitpost.2025.06.017","url":null,"abstract":"<div><h3>Objectives</h3><div>The purpose of this study was to evaluate inter-segmental foot and ankle kinematics in patients with end-stage lesser tarsometatarsal (TMT) joint arthritis and to identify characteristic gait adaptations using a validated multi-segment foot model.</div></div><div><h3>Methods</h3><div>Twenty-five patients with radiographically confirmed end-stage lesser TMT arthritis and fifty age- and sex-matched healthy controls underwent three-dimensional gait analysis. A 15-marker DuPont Foot Model was used to capture segmental kinematics of the hallux, forefoot, and hindfoot. Temporal-spatial parameters and inter-segmental motions were compared between groups. Statistical parametric mapping (SPM) was used to assess phase-specific differences across the gait cycle.</div></div><div><h3>Results</h3><div>The TMT group demonstrated slower walking speeds, shorter stride lengths, and increased step width compared to controls. Significant alterations in inter-segmental kinematics included increased forefoot dorsiflexion and hallux extension during terminal stance, along with reduced sagittal and transverse range of motion (ROM) in the hindfoot and hallux segments. Coronal plane motion was relatively preserved. These findings suggest that sagittal and transverse plane impairments, rather than coronal changes, are predominant in this patient population. Increased forefoot-to-hindfoot motion may reflect medial column laxity, including potential first ray hypermobility, and compensatory adjustments for reduced midfoot stability.</div></div><div><h3>Conclusion</h3><div>End-stage lesser TMT joint arthritis significantly alters inter-segmental foot motion and spatiotemporal gait parameters. These biomechanical adaptations may reflect compensation for midfoot dysfunction and highlight the importance of addressing sagittal and transverse plane abnormalities in clinical management.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 361-369"},"PeriodicalIF":2.2,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482409","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":"Anger affects behavioral and physiological correlates of dual-task walking and texting in young adults","authors":"Aya Gharra ,&nbsp;Arik Cheshin ,&nbsp;Tal Krasovsky","doi":"10.1016/j.gaitpost.2025.06.019","DOIUrl":"10.1016/j.gaitpost.2025.06.019","url":null,"abstract":"<div><h3>Objective</h3><div>This study investigates how emotional content in text messages affects gait and physiological measures during dual-task texting and walking.</div></div><div><h3>Methods</h3><div>Thirty-four young adults participated in a study involving dual-task walking using a texting-based autobiographical memories paradigm. Participants texted about autobiographical emotional experiences (neutral, happy, sad, angry, fearful) while walking for 2-minute periods. They also walked without texting. Walking parameters and typing speed were recorded, as well as measures of heart rate variability (HRV) to assess autonomic nervous system responses.</div></div><div><h3>Results</h3><div>Texting while walking decreased gait speed and increased stride time but did not affect stride length or gait variability. HRV was reduced during dual-task walking. Emotional content influenced gait speed, with higher speeds during angry compared to sad texting. HRV analysis revealed increased sympathetic activation during angry walking compared to neutral walking. Typing speed was unaffected by emotional content.</div></div><div><h3>Conclusion</h3><div>Use of a texting-based autobiographical memories paradigm in young adults induces specific behavioral and physiological responses during dual-task walking. The effects of anger (faster gait speed, increased sympathetic activity) suggest partial mitigation of dual-task costs. These findings enhance understanding of distracted walking and its interaction with emotional states, with implications for safety-promoting interventions in pedestrians.</div></div>","PeriodicalId":12496,"journal":{"name":"Gait & posture","volume":"121 ","pages":"Pages 384-388"},"PeriodicalIF":2.2,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501901","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}