Human Movement Science最新文献

{"title":"Effects of high-intensity interval training combined with dual-site transcranial direct current stimulation on inhibitory control and working memory in healthy adults","authors":"Tian Yue ,&nbsp;Liang Liu ,&nbsp;Michael A. Nitsche ,&nbsp;Zhaowei Kong ,&nbsp;Ming Zhang ,&nbsp;Fengxue Qi","doi":"10.1016/j.humov.2024.103240","DOIUrl":"10.1016/j.humov.2024.103240","url":null,"abstract":"<div><p>Transcranial direct current stimulation (tDCS) and high-intensity interval training (HIIT) have been demonstrated to enhance inhibitory control and working memory (WM) performance in healthy adults. However, the potential benefits of combining these two interventions have been rarely explored and remain largely speculative. This study aimed to explore the effects of acute HIIT combined with dual-site tDCS over the dorsolateral prefrontal cortex (DLPFC, F3 and F4) on inhibitory control and WM in healthy young adults. Twenty-five healthy college students (20.5 ± 1.3 years; 11 females) were recruited to complete HIIT + tDCS, HIIT + sham-tDCS, rest + tDCS, and rest + sham-tDCS (CON) sessions in a randomized crossover design. tDCS or sham-tDCS was conducted after completing HIIT or a rest condition of the same duration. The Stroop and 2-back tasks were used to evaluate the influence of this combined intervention on cognitive tasks involving inhibitory control and WM performance in post-trials, respectively. Response times (RTs) of the Stroop task significantly improved in the HIIT + tDCS session compared to the CON session across all conditions (all <em>p</em> values &lt;0.05), in the HIIT + tDCS session compared to the rest + tDCS session in the congruent and neutral conditions (all <em>p</em> values &lt;0.05), in the HIIT + sham-tDCS session compared to the CON session in the congruent and neutral conditions (all <em>p</em> values &lt;0.05), in the HIIT + sham-tDCS session compared to the rest + tDCS session in the congruent condition (<em>p</em> = 0.015). No differences were found between sessions in composite score of RT and accuracy in the Stroop task (all <em>p</em> values &gt;0.05) and in the 2-back task reaction time and accuracy (all <em>p</em> values &gt;0.05). We conclude that acute HIIT combined with tDCS effectively improved inhibitory control but it failed to yield cumulative benefits on inhibitory control and WM in healthy adults. These preliminary findings help to identify beneficial effects of combined interventions on cognitive performance and might guide future research with clinical populations.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103240"},"PeriodicalIF":2.1,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141321963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Force-field perturbations and muscle vibration strengthen stability-related foot placement responses during steady-state gait in healthy adults","authors":"A.M. van Leeuwen ,&nbsp;S.M. Bruijn ,&nbsp;J.C. Dean","doi":"10.1016/j.humov.2024.103243","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103243","url":null,"abstract":"<div><p>Mediolateral gait stability can be maintained by coordinating our foot placement with respect to the center-of-mass (CoM) kinematic state. Neurological impairments can reduce the degree of foot placement control. For individuals with such impairments, interventions that could improve foot placement control could thus contribute to improved gait stability. In this study we aimed to better understand two potential interventions, by investigating their effect in neurologically intact individuals. The degree of foot placement control can be quantified based on a foot placement model, in which the CoM position and velocity during swing predict subsequent foot placement. Previously, perturbing foot placement with a force-field resulted in an enhanced degree of foot placement control as an after-effect. Moreover, timed muscle vibration enhanced the degree of foot placement control whilst the vibration was applied. Here, we replicated these two findings and further investigated whether Q1) timed muscle vibration leads to an after-effect and Q2) whether combining timed muscle vibration with force-field perturbations leads to a larger after-effect, as compared to force-field perturbations only. In addition, we evaluated several potential contributors to the degree of foot placement control, by considering foot placement errors, CoM variability and the CoM position gain (β_pos) of the foot placement model, next to the R² measure as the degree of foot placement control. Timed muscle vibration led to a higher degree of foot placement control as an after-effect (Q1). However, combining timed muscle vibration and force-field perturbations did not lead to a larger after-effect, as compared to following force-field perturbations only (Q2). Furthermore, we showed that the improved degree of foot placement control following force-field perturbations and during/following muscle vibration, did not reflect diminished foot placement errors. Rather, participants demonstrated a stronger active response (higher β_pos) as well as higher CoM variability.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103243"},"PeriodicalIF":2.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0167945724000666/pdfft?md5=9f5e8684d1caf950696a3ab6bf056e8e&pid=1-s2.0-S0167945724000666-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141312943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of planned active play on the fundamental movement skills of preschool children","authors":"Mengyuan Bai ,&nbsp;Nan Lin ,&nbsp;Jane Jie Yu ,&nbsp;Zitong Teng ,&nbsp;Minjie Xu","doi":"10.1016/j.humov.2024.103241","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103241","url":null,"abstract":"<div><h3>Background</h3><p>At present, Chinese children aged 3–6 years old are facing challenges such as insufficient physical activity, declining physical health, and obesity, and China has yet to issue curriculum standards or physical activity guidelines for this age group. At the same time, the present kindergarten physical activity curriculum is insufficient. To address this issue, this study focused on designing and executing a planned active play intervention program for the kindergarten setting to analyze its efficacy in enhancing children's fundamental movement skills (FMS). This study aims to provide a reference for the theoretical and practical exploration of children's acquisition of fundamental movement skills in the Chinese context.</p></div><div><h3>Methods</h3><p>Fifty-two preschoolers participated in this study and were either part of an intervention group (<em>n</em> = 30) or a control group (<em>n</em> = 24). Children's FMS were assessed before and after the intervention using the Test of Gross Motor Development-3 (TGMD-3) and the balance ability of the The Movement Assessment Battery for Children-2 (MABC-2). Physical activity (PA) during the planned active play intervention and the routine physical activity curriculum were assessed using the SOFIT throughout the intervention.</p></div><div><h3>Results</h3><p>All the children significantly improved their locomotor skills, ball skills, and TGMD from baseline to the late assessment (<em>p</em> &lt; 0.05). Children in the planned active play intervention group demonstrated greater rates of change (<em>p</em> &lt; 0.001) and scored higher on ball skills and TGMD in the late assessment than those in the control group (<em>p</em> &lt; 0.001). The children in the intervention group, but not those in the control group, significantly improved their balance over time (<em>p</em> &lt; 0.05), and the former had greater rates of change (<em>p</em> &lt; 0.001). Similarly, planned active play was found to provide children with more physical activity than the routine physical activity curriculum.</p></div><div><h3>Conclusions</h3><p>The eight-week planned active play intervention was effective in improving FMS in preschool children, with higher rates of FMS change in children who completed the intervention than children in the control group.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103241"},"PeriodicalIF":2.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of disease, freezing of gait, and dopaminergic medication in the biomechanics of trunk and upper limbs in the gait of Parkinson's disease","authors":"Emanuele Los Angeles ,&nbsp;Claudia Eunice Neves de Oliveira ,&nbsp;Layla Cupertino ,&nbsp;Solaiman Shokur ,&nbsp;Mohamed Bouri ,&nbsp;Daniel Boari Coelho","doi":"10.1016/j.humov.2024.103242","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103242","url":null,"abstract":"<div><h3>Introduction</h3><p>Parkinson's disease (PD) causes gait abnormalities that may be associated with an arm swing reduction. Medication and freezing of gait (FoG) may influence gait characteristics. However, these comparisons do not consider differences in gait speed and clinical characteristics in individuals with PD.</p></div><div><h3>Objective</h3><p>This study aims to analyze the effect of FoG and medication on the biomechanics of the trunk and upper limbs during gait in PD, controlling for gait speed and clinical differences between groups.</p></div><div><h3>Methods</h3><p>Twenty-two people with a clinical diagnosis of idiopathic PD in ON and OFF medication (11 FoG), and 35 healthy participants (control) were selected from two open data sets. All participants walked on the floor on a 10-m-long walkway. The joint and linear kinematic variables of gait were compared: (1) Freezers and nonfreezers in the ON condition and control; (2) Freezers and nonfreezers in the OFF condition and control; (3) Group (freezers and nonfreezers) and medication.</p></div><div><h3>Results</h3><p>The disease affects the upper limbs more strongly but not the trunk. The medication does not significantly influence the joint characteristics but rather the linear wrist displacement. The FoG does not affect trunk movement and partially influences the upper limbs. The interaction between medications and FoG suggests that the medication causes more substantial improvement in freezers than in nonfreezers.</p></div><div><h3>Conclusion</h3><p>The study shows differences in the biomechanics of the upper limbs of people with PD, FoG, and the absence of medication. The future rehabilitation protocol should consider this aspect.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103242"},"PeriodicalIF":2.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141286120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of subclinical neck pain on eye and hand movements in goal-directed upper limb aiming movements","authors":"Navika Cheema,&nbsp;Paul Yielder,&nbsp;Praveen Sanmugananthan,&nbsp;Ushani Ambalavanar,&nbsp;Bernadette Murphy","doi":"10.1016/j.humov.2024.103238","DOIUrl":"10.1016/j.humov.2024.103238","url":null,"abstract":"<div><p>Individuals with untreated, mild-to-moderate recurrent neck pain or stiffness (subclinical neck pain (SCNP)) have been shown to have impairments in upper limb proprioception, and altered cerebellar processing. It is probable that aiming trajectories will be impacted since individuals with SCNP cannot rely on accurate proprioceptive feedback or feedforward processing (body schema) for movement planning and execution, due to altered afferent input from the neck. SCNP participants may thus rely more on visual feedback, to accommodate for impaired cerebellar processing. This quasi-experimental study sought to determine whether upper limb kinematics and oculomotor processes were impacted in those with SCNP. 25 SCNP and 25 control participants who were right-hand dominant performed bidirectional aiming movements using two different weighted styli (light or heavy) while wearing an eye-tracking device. Those with SCNP had a greater time to and time after peak velocity, which corresponded with a longer upper limb movement and reaction time, seen as greater constant error, less undershoot in the upwards direction and greater undershoot in the downwards direction compared to controls. SCNP participants also showed a trend towards a quicker ocular reaction and movement time compared to controls, while the movement distance was fairly similar between groups. This study indicates that SCNP alters aiming performances, with greater reliance on visual feedback, likely due to altered proprioceptive input leading to altered cerebellar processing.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103238"},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0167945724000617/pdfft?md5=b4201e54b40d6b5c256b4632d29ba4c4&pid=1-s2.0-S0167945724000617-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141201543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Through the looking-glass: Mirror feedback modulates temporal and spatial aspects of bimanual coordination","authors":"J. Kim,&nbsp;S.-H. Yeo,&nbsp;T.D. Punt","doi":"10.1016/j.humov.2024.103237","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103237","url":null,"abstract":"<div><p>Mirror therapy has become an effective and recommended intervention for a range of conditions affecting the upper limb (e.g. hemiparesis following stroke). However, little is known about how mirror feedback affects the control of bimanual movements (as performed during mirror therapy). In this study, in preparation for future clinical investigations, we examined the kinematics of bimanual circle drawing in unimpaired participants both with (Experiment 1) and without (Experiment 2) a visual template to guide movement. In both experiments, 15 unimpaired right-handed participants performed self-paced continuous bimanual circle-drawing movements with a mirror/symmetrical coordination pattern. For the <em>mirror</em> condition, vision was directed towards the mirror in order to monitor the reflected limb. In the <em>no mirror</em> condition, the direction of vision was unchanged, but the mirror was replaced with an opaque screen. Movements of both hands were recorded using motion capture apparatus. In both experiments, the most striking feature of movements was that the hand <em>behind the mirror</em> drifted spatially during the course of individual trials. Participants appeared to be largely unaware of this marked positional change of their <em>unseen</em> hand, which was most pronounced when a template to guide movement was visible (Experiment 1). Temporal asynchrony between the limbs was also affected by mirror feedback in both experiments; in the <em>mirror</em> condition, illusory vision of the <em>unseen</em> hand led to a relative phase lead for that limb. Our data highlight the remarkable impact that the introduction of a simple mirror can have on bimanual coordination. Modulation of spatial and temporal features is consistent with the mirror inducing a rapid and powerful visual illusion, the latter appearing to override proprioceptive signals.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103237"},"PeriodicalIF":2.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0167945724000605/pdfft?md5=e9925073cd588df7ecabee1fb83ae1b5&pid=1-s2.0-S0167945724000605-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141163801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reliability and validity of the force intersection point in the assessment of human quiet standing balance","authors":"Jennifer N. Bartloff ,&nbsp;Kreg G. Gruben ,&nbsp;Colin R. Grove","doi":"10.1016/j.humov.2024.103239","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103239","url":null,"abstract":"<div><h3>Background</h3><p>This study evaluated psychometric properties of the Intersection Point Height, derived from ground-on-feet force characteristics, as a tool for assessing balance control. We compare this metric with traditional center of pressure (CP) measurements.</p></div><div><h3>Methods</h3><p>Data from a public dataset of 146 participants, divided into younger (&lt;60 years old) and older (≥60 years old) adults, were analyzed. Clinical tests included the Short Falls Efficacy Scale-International, International Physical Activity Questionnaire-Short Form, Trail Making Tests A and B, and the Mini-Balance Evaluation Systems Test. Reliability and validity were assessed through the intra-class correlation coefficient (ICC[3,1]) for <em>mean Intersection Point Height</em> in each test condition and Spearman's rho between <em>summative Intersection Point Height</em> (the sum of <em>intra-condition mean</em> values across all test conditions within one subject) and other variables of interest, respectively.</p></div><div><h3>Findings</h3><p><em>Mean Intersection Point Height</em> showed good to excellent reliability (ICC = 0.712–0.901), similar to that of CP velocity (ICC = 0.733–0.922) and greater than that of variance CPx (0.475–0.768). <em>Summative Intersection Point Height</em> exhibited strong convergent validity with Trail Making Tests A and B (rho = 0.49, <em>p</em> &lt; 0.001) and the Mini-Balance Evaluation Systems Test (rho = −0.47, <em>p</em> &lt; 0.001). At most, a weak to moderate association (rho = 0.39–0.49, p &lt; 0.001) was found between <em>intra-condition mean Intersection Point Height</em> with CP metrics. <em>Intra-condition mean Intersection Point Height</em> demonstrated weak to moderate convergent validity with several clinical measures (rho = 0.32–0.52, <em>p</em> &lt; 0.001). In contrast, at most, a weak to moderate association (rho = 0.39–0.49, p &lt; 0.001) was found between <em>intra-condition mean Intersection Point Height</em> with CP metrics.</p></div><div><h3>Interpretation</h3><p>The <em>Intersection Point Height</em> is a reliable and valid balance measure. Further, we believe that it is a more comprehensive evaluation than CP metrics.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103239"},"PeriodicalIF":2.1,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Repeated exposure to virtual reality decreases reliance on visual inputs for balance control in healthy adults","authors":"Christophe Barbanchon,&nbsp;Dominique Mouraux,&nbsp;Stéphane Baudry","doi":"10.1016/j.humov.2024.103236","DOIUrl":"10.1016/j.humov.2024.103236","url":null,"abstract":"<div><p>Postural control may encounter acute challenges when individuals are immersed in a virtual reality (VR) environment, making VR a potential pertinent tool for enhancing balance capacity. Nonetheless, the effects of repeated exposure to VR on balance control remain to be fully elucidated. Fifty-five healthy participants stood upright for six bouts of 90 s each in an immersive virtual reality (VR) environment using a head-mounted display (repeated VR exposure). During these bouts, participants experienced simulated forward and backward displacements. Before and after the repeated VR exposure, the center of pressure mean velocity (VEL_COP) was measured in response to simulated forward and backward displacement in VR, as well as during quiet upright standing with eyes open (EO) and closed (EC) in the real environment. The results revealed a significant decrease in VEL_COP for forward and backward simulated displacements in both antero-posterior and medio-lateral directions (<em>p</em> &lt; 0.01) after compared to before repeated VR exposure. Furthermore, VEL_COP significantly decreased when participants stood upright in EC (−5%; <em>p</em> = 0.004), but not EO (+3%; <em>p</em> &gt; 0.05) in the real environment after repeated VR exposure. The Romberg ratio (EC/EO) was reduced in both antero-posterior and medio-lateral directions (<em>p</em> &lt; 0.05) after VR exposure. This study indicates that repeated exposure to VR induces changes in balance control in both virtual and real environments. These changes may be attributed, in part, to a reduction in the weighting of visual inputs in the multisensory integration process occurring during upright standing. Accordingly, these findings highlight VR as a potentially effective tool for balance rehabilitation.</p></div><div><h3>Significance statement</h3><p>This study indicates that repeated exposure to VR induces changes in balance control in both virtual and real environments that can rely, in part, on a reduction in the weighting of visual inputs in the multisensory integration process occurring during upright standing.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103236"},"PeriodicalIF":2.1,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141162918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Haptic coordination: Squeezing a vibrating stress ball decreases anxiety and arousal","authors":"Clément Blanc ,&nbsp;Jean-Christophe Buisson ,&nbsp;Jeanne Kruck ,&nbsp;Viviane Kostrubiec","doi":"10.1016/j.humov.2024.103220","DOIUrl":"https://doi.org/10.1016/j.humov.2024.103220","url":null,"abstract":"<div><p>We evaluated the effect of haptic coordination on anxiety and arousal. Participants looked at a stressful or calming image and then repeatedly squeezed a vibrating stress ball for 20 s. Using a pre-post paradigm with a control group, we showed that squeezing the vibrating ball reduced anxiety and arousal, as assessed by the State-Trait Anxiety Inventory and electrodermal activity, respectively. The stability of haptic coordination was manipulated by varying the detuning between the spontaneous squeezing frequency and the intrinsic frequency of ball vibration. Coordination stability affected arousal and stress affected stability. The data were discussed in the light of Kahneman's attentional resource-sharing model.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103220"},"PeriodicalIF":2.1,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141077652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of inter-joint coordination strategies during activities of daily living with prosthetic and anatomical limbs","authors":"Christina Lee ,&nbsp;Deanna H. Gates","doi":"10.1016/j.humov.2024.103228","DOIUrl":"10.1016/j.humov.2024.103228","url":null,"abstract":"<div><p>While healthy individuals have redundant degrees of freedom of the joints, they coordinate their multi-joint movements such that the redundancy is effectively reduced. Achieving high inter-joint coordination may be difficult for upper limb prosthesis users due to the lack of proprioceptive feedback and limited motion of the terminal device. This study compared inter-joint coordination between prosthesis users and individuals without limb loss during different upper limb activities of daily living (ADLs). Nine unilateral prosthesis users (five males) and nine age- and sex-matched controls without limb loss completed three unilateral and three bilateral ADLs. Principal component analysis was applied to the three-dimensional motion trajectories of the trunk and arms to identify coordinative patterns. For each ADL, we quantified the cumulative variance accounted for (VAF) of the first five principal components (pcs), which was the lowest number of pcs that could achieve 90% VAF in control limb movements across all ADLs (5 <span><math><mo>≤</mo></math></span> n <span><math><mo>≤</mo></math></span> 9). The VAF was lower for movements involving a prosthesis compared to those completed by controls across all ADLs (<em>p</em> &lt; 0.001). The pc waveforms were similar between movements involving a prosthesis and movements completed by control participants for pc1 (<em>r</em> &gt; 0.78, <em>p</em> &lt; 0.001). The magnitude of the relationship for pc2 and pc3 differed between ADLs, with the strongest correlation for symmetric bilateral ADLs (0.67 <span><math><mo>≤</mo></math></span> r <span><math><mo>≤</mo></math></span> 0.97, <em>p</em> &lt; 0.001). Collectively, this study demonstrates that activities of daily living were completed with distinct coordination strategies in prosthesis users compared to individuals without limb loss. Future work should explore how device features, such as the availability of sensory feedback or motorized wrist joints influence multi-joint coordination.</p></div>","PeriodicalId":55046,"journal":{"name":"Human Movement Science","volume":"96 ","pages":"Article 103228"},"PeriodicalIF":2.1,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140960937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}