Journal of Motor Behavior最新文献

Motor Dual-Task Deficits and Their Associations with Executive Function in Older Adults with Cognitive Impairments. 认知障碍老年人运动双任务缺陷及其与执行功能的关系。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-06-11 DOI: 10.1080/00222895.2025.2514483

Cady V Seavey, Brittany Heintz Walters

{"title":"Motor Dual-Task Deficits and Their Associations with Executive Function in Older Adults with Cognitive Impairments.","authors":"Cady V Seavey, Brittany Heintz Walters","doi":"10.1080/00222895.2025.2514483","DOIUrl":"https://doi.org/10.1080/00222895.2025.2514483","url":null,"abstract":"Age-related manual dexterity impairments may critically depend on cognitive impairments. This study examined associations between task demands, cognitive function and dexterity impairments in older adults. A total of 42 participants, 21 young (age 19-39; 12 female, 9 male) and 21 older (age 65-88; 12 female and 9 males) adults performed the Grooved Pegboard test under single-task, dual task (visuospatial and nonspatial tasks) and bilateral (finger-tapping test) conditions. Cognitive and executive function were assessed with the Montreal Cognitive Assessment (MoCA) and Trail Making Test (TMT). Older adults showed uniform declines in Grooved Pegboard performance across secondary tasks compared to young adults. Older adults with cognitive deficits (MoCA < 26) took 34% longer to complete the Grooved Pegboard during the nonspatial task compared to healthy older adults. The bilateral task revealed Grooved Pegboard and finger tapping impairments in older adults, particularly those with cognitive deficits, relative to young adults. Significant correlations between increased TMT B completion time and decreased Grooved Pegboard (r = 0.732) and finger-tapping (r = -0.663) performance highlights a relationship between executive function and dexterity impairments in older adults with cognitive deficits. Results suggest the role of cognitive impairments in motor function and the use of task-specific motor assessments.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-17"},"PeriodicalIF":1.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantification of Goal-Directed Stepping Behavior Under Two Limb Choice Conditions in Neurotypical Adults: A Preliminary Investigation. 神经正常成人两种肢体选择条件下目标定向行走行为的量化：初步研究。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-06-09 DOI: 10.1080/00222895.2025.2514474

Charalambos C Charalambous, Eric R Espinoza-Wade, Guilherme M Cesar, Michaela Gerger, Yi-Hsuan Lai, Carolee J Winstein

{"title":"Quantification of Goal-Directed Stepping Behavior Under Two Limb Choice Conditions in Neurotypical Adults: A Preliminary Investigation.","authors":"Charalambos C Charalambous, Eric R Espinoza-Wade, Guilherme M Cesar, Michaela Gerger, Yi-Hsuan Lai, Carolee J Winstein","doi":"10.1080/00222895.2025.2514474","DOIUrl":"https://doi.org/10.1080/00222895.2025.2514474","url":null,"abstract":"During reaching, arm choice depends on handedness, success, and effort; however, whether these factors influence leg choice for goal-directed stepping is still unknown. We aimed to quantify the kinematics and behavioral patterns of leg choice and to explore whether success and/or effort influence leg choice during goal-directed stepping under two Choice conditions in 20 right-leg dominant neurotypical adults. We adapted the classic center-out target array; participants stepped to pre-cued targets with an emphasis on accuracy without time constraints. The first set of trials was always Free for which either leg could be chosen. The second set of trials was verbally Constrained for which there was no choice as only the left non-dominant leg was to be used. We separately compared success, effort, and subjective difficulty between Free and Constrained trials for left and right target regions. In Free, participants uniformly selected the limb ipsilateral to the target. While success and subjective difficulty were not influenced by Choice, effort varied depending on Choice. Our preliminary findings suggest that during goal-directed stepping, leg choice depends on effort and may be independent of leg dominance and subjective difficulty, while the difficulty of the Constrained Choice condition can improve success independent of leg used.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-20"},"PeriodicalIF":1.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Force Perception Across Dominant and Non-Dominant Hands in Healthy Individuals: A Gender-Based Analysis. 健康个体优势手和非优势手的力量感知：基于性别的分析。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-06-09 DOI: 10.1080/00222895.2025.2514475

Sedat Yigit, Halil İbrahim Ergen

{"title":"Force Perception Across Dominant and Non-Dominant Hands in Healthy Individuals: A Gender-Based Analysis.","authors":"Sedat Yigit, Halil İbrahim Ergen","doi":"10.1080/00222895.2025.2514475","DOIUrl":"https://doi.org/10.1080/00222895.2025.2514475","url":null,"abstract":"Force perception (FP) is a sub-modality of proprioception, influenced by muscle mechanoreceptors. In studies on proprioception, joint position sense and kinesthesia are typically the primary focus, while research on FP remains comparatively limited. This study aimed to examine the effects of gender and maximal grip strength (MGS) on FP. To determine MGS, the participants first squeezed the dynamometer with the dominant hand, followed by non-dominant hand. FP was tested at 25% and 50% of the MGS. The participants were taught these target values using visual feedback displayed on a screen. Then, they were instructed to reproduce the learned grip force without visual input. The difference between the target value and the achieved value was noted as the Absolute Error (AE). A significant difference was observed between males and females in the AE at 25% of MGS. MGS was correlated with FP. Increased grip strength was correlated with greater errors in force reproduction. Overall, gender and hand dominance did not appear to have a significant effect on FP (except for the 25% AE). A clearer understanding of the effects of gender and MGS on FP could help healthcare professionals in preventive and rehabilitative fields better address these deficits.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-9"},"PeriodicalIF":1.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Speed and Variability of Chair Stepping and Morphological and Neural Characteristics in Community-Dwelling Older Adults. 社区居住老年人踏椅速度、变异性、形态和神经特征。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-06-09 DOI: 10.1080/00222895.2025.2514481

Tetsuya Hirono, Ryosuke Takeda, Taichi Nishikawa, Masamichi Okudaira, Kohei Watanabe

{"title":"Speed and Variability of Chair Stepping and Morphological and Neural Characteristics in Community-Dwelling Older Adults.","authors":"Tetsuya Hirono, Ryosuke Takeda, Taichi Nishikawa, Masamichi Okudaira, Kohei Watanabe","doi":"10.1080/00222895.2025.2514481","DOIUrl":"https://doi.org/10.1080/00222895.2025.2514481","url":null,"abstract":"Rapid lower limb coordination is directly related to physical activity skills in older adults and is controlled mainly by the central nervous system. This study aimed to investigate the association between chair stepping skills and neuromuscular properties in older adults. Fifty-eight community-dwelling older adults (72.0 ± 5.0 years) participated. High-density surface electromyography from the vastus lateralis (VL) was recorded and was decomposed into individual motor unit activities. The slope (MU slope) and intercept were calculated from the regression line between the individual motor unit recruitment thresholds and firing rates in each participant. Muscle thickness of the VL and vastus intermedius and echo intensity of the VL were evaluated using ultrasonography. While sitting on a chair, they repeatedly opened and closed their legs to position their feet outside and within 30-cm interval lines rapidly for 20 s. The mean steps were associated with echo intensity (r = 0.388, p < 0.01). Step variability was associated with the MU slope (r = 0.324, p = 0.03). These results suggest that the rapid lower-limb movement skills would be determined by neuromuscular quality, such as echo intensity and motor unit firing patterns, in older adults. The chair stepping test can be employed as a screening tool as an alternative to specific assessments.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-9"},"PeriodicalIF":1.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrating Motor Learning Principles into Muscle Force and Balance Control. 将运动学习原理融入肌肉力量和平衡控制。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-05-20 DOI: 10.1080/00222895.2025.2505496

Yuting Wei, Satoshi Kasahara, Linjing Jiang, Ami Chiba, Tomoya Ishida, Yuta Koshino, Mina Samukawa, Hiroshi Saito, Harukazu Tohyama

{"title":"Integrating Motor Learning Principles into Muscle Force and Balance Control.","authors":"Yuting Wei, Satoshi Kasahara, Linjing Jiang, Ami Chiba, Tomoya Ishida, Yuta Koshino, Mina Samukawa, Hiroshi Saito, Harukazu Tohyama","doi":"10.1080/00222895.2025.2505496","DOIUrl":"https://doi.org/10.1080/00222895.2025.2505496","url":null,"abstract":"The principles of specificity and similarity play a crucial role in supporting the transfer and retention of motor performance in general sports training. Nevertheless, the extent to which force control ability translates into dynamic performance remains unclear. We aimed to investigate the effect of force control training on the transfer and retention of balance control in 18 young individuals. The force control training utilized a visual-guided force tracking task with either a uniform or non-uniform sinusoidal wave in ankle plantar flexors (PF). Postural stability was assessed by measuring the center of pressure (COP) in a single-leg standing posture. Despite consistent repetitions, no significant differences in COP parameters were observed between the pre- and post-training assessments. However, significant differences were noted between the pre-training assessments and the post-training assessments conducted one week later, utilizing a randomized order. Shifting from a regimen of constant repetition to a randomized order has a positive impact on the transfer and retention of acquired motor skills. This approach, based on the motor learning theory, holds promise for enhancing the motor performance of athletes and patients undergoing rehabilitation.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-9"},"PeriodicalIF":1.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144112630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Young Adults Are Impacted by the Spatial Context of Visual Cues to Perform Walking Turns. 年轻人在转身行走时受到视觉线索空间背景的影响。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-05-20 DOI: 10.1080/00222895.2025.2507158

Jenna Pitman, Lori Ann Vallis

{"title":"Young Adults Are Impacted by the Spatial Context of Visual Cues to Perform Walking Turns.","authors":"Jenna Pitman, Lori Ann Vallis","doi":"10.1080/00222895.2025.2507158","DOIUrl":"https://doi.org/10.1080/00222895.2025.2507158","url":null,"abstract":"Walking turns require coordinated axial segment rotations combined with step placement modifications. Visual information can inform this coordination and is used in three stages of processing: to identify the stimulus, select the appropriate response, and execute the response. We adapted a Simon task protocol to explore how response selection impacts walking turn execution. Young adults (n = 24; 15 female; 24.9 ± 4.5 years) completed walking turns to goals located 60 degrees left or right of their walking path. In some trials, heel contact with a force plate triggered appearance of an arrow on the same side (congruent), opposite side (incongruent) or in the middle (neutral) of a screen. To determine impact of different biomechanical demands for task execution, researchers specified which foot to initiate gait for each trial; this ensured visual cues were triggered either by the same limb as the turn direction (ipsilateral) or opposite (contralateral). We observed that head and trunk yaw motion was initiated earlier and with greater relative rotation magnitude for incongruent visual cues. Step width adaptations were also observed for both step patterns when responding to incongruent visual cues. Conflict at the response selection phase of visual processing disrupts typical turning behaviors of young adults.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-13"},"PeriodicalIF":1.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144112632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparing Virtual Reality and Balance Beam Training vs. Virtual Reality Alone for Balance Improvement. 比较虚拟现实和平衡木训练与虚拟现实单独提高平衡。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-05-20 DOI: 10.1080/00222895.2025.2506756

Kanokporn Pooranawatthanakul, Jirapa Cannong, Thanakrit Thanasombut, Nicharee Hanprerakriengkrai, Maria Justine, Akkradate Siriphorn

{"title":"Comparing Virtual Reality and Balance Beam Training vs. Virtual Reality Alone for Balance Improvement.","authors":"Kanokporn Pooranawatthanakul, Jirapa Cannong, Thanakrit Thanasombut, Nicharee Hanprerakriengkrai, Maria Justine, Akkradate Siriphorn","doi":"10.1080/00222895.2025.2506756","DOIUrl":"https://doi.org/10.1080/00222895.2025.2506756","url":null,"abstract":"This study investigated whether combining virtual reality (vr) with balance beam training enhances balance performance in young adults more effectively than vr alone, addressing the limited research on their combined effects. thirty-nine participants were randomly assigned to one of three groups: VR with balance beam training, VR alone, or a control group. Participants in the VR groups completed a 5-min rope walking VR game in four sessions per day, 3 days per week, for 4 weeks. Balance was assessed using the Neurocom Balance Master before and after the intervention. Both the combined VR and balance beam group and the VR alone group showed significant improvements compared to the control group, including reduced tandem walk end sway, increased movement velocity, improved maximum excursion in the limit of stability, and decreased sway velocity during single-leg stance with eyes opened. However, no significant differences were found between the combined group and the VR alone group. These findings suggest that both VR combined with balance beam training and VR alone can significantly improve balance in young adults. This indicates that either approach could be effectively used to enhance balance in this population.Clinical trial registration number: The study was registered at www.thaiclinicaltrials.org (No. TCTR20201217005).","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-16"},"PeriodicalIF":1.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144112628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Muscular Fatigue on the Performance of Handgrip Tasks During Force Generation and Relaxation. 肌肉疲劳对握力产生和放松过程中握力任务表现的影响。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-05-06 DOI: 10.1080/00222895.2025.2496150

Chiaki Ohtaka, Kana Yanagita, Hiroki Nakata, Motoko Fujiwara, Manabu Shibasaki

{"title":"Effects of Muscular Fatigue on the Performance of Handgrip Tasks During Force Generation and Relaxation.","authors":"Chiaki Ohtaka, Kana Yanagita, Hiroki Nakata, Motoko Fujiwara, Manabu Shibasaki","doi":"10.1080/00222895.2025.2496150","DOIUrl":"https://doi.org/10.1080/00222895.2025.2496150","url":null,"abstract":"This study investigated the effects of muscular fatigue on the accuracy of force control in the respective generation and relaxation phases while performing an isometric handgrip force-tracking task. Participants were instructed to track a target line moving upward and downward, corresponding to 0 to 30% of maximum voluntary contraction (MVC) at a constant for 7 s. Eight sets of 25 continuous trials each were conducted. The force-tracking accuracy and electromyography (EMG) of extensor carpi radialis (ECR) and flexor carpi ulnaris (FCU) were evaluated. The force-tracking accuracy was compared between the phase (upward: generation and downward: relaxation), set (first and eighth), and within-set periods (early: 1-5, middle: 10-15, and late: 20-25 trials). The force-tracking accuracy at the middle and late periods significantly declined compared to the early period in the relaxation phase. Integrated EMG of ECR and FCU was significantly larger in the generation than in the relaxation phase. The integrated EMG of FCU in the generation phase was significantly different between the periods. Furthermore, the median frequency of FCU was significantly different between the phases and periods. These findings suggest that the effects of muscular fatigue on force control varied between generation and relaxation due to the amount and frequency band of muscle activity.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-12"},"PeriodicalIF":1.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144048154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Motor Imagery on Skin Conductance and Pelvic Floor Sensorimotor Condition: A Randomised Controlled Trial. 运动意象对皮肤电导和盆底感觉运动状况的影响：一项随机对照试验。

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-05-05 DOI: 10.1080/00222895.2025.2496153

Ferran Cuenca-Martínez, Ana Isabel Rubio-Baños, Laura Fuentes-Aparicio, Núria Sempere-Rubio

{"title":"Effects of Motor Imagery on Skin Conductance and Pelvic Floor Sensorimotor Condition: A Randomised Controlled Trial.","authors":"Ferran Cuenca-Martínez, Ana Isabel Rubio-Baños, Laura Fuentes-Aparicio, Núria Sempere-Rubio","doi":"10.1080/00222895.2025.2496153","DOIUrl":"https://doi.org/10.1080/00222895.2025.2496153","url":null,"abstract":"The main aim was to assess the effects of motor imagery (MI) plus pelvic floor musculature (PFM) isometric exercises (IE) on skin conductance and pelvic floor sensorimotor condition. Thirty healthy women were randomised into two groups: MI+IE (n = 15), and sham-MI+IE (CG) group (n = 15). A pre- and post-intervention evaluation was conducted. Regarding the skin conductance, significant between-group differences were found in favour of MI+IE in the imagination phase with a large effect size (mean differences (MD)=1.79 μS, p = 0.037, d = 0.82). This greater sympathetic activation in the MI+IE group was accompanied by significantly greater hypoalgesia on presumed referral area of menstrual pain compared with the CG with a moderate effect size (MD = 0.722 Kg/cm2, p = 0.048, d = 0.76). Finally, regarding the PFM strength, significant between-group differences were also found in favour of MI+IE compared with the CG with a large effect size (MD = 64.9 g, p = 0.035, d = 0.81). The results showed that adding MI to an IE program resulted in statistically greater improvements in pelvic floor sensorimotor function than IE alone in a single session and this should be considered clinically. Finally, one of the neurophysiological mechanisms by which the greater hypoalgesia generated in the experimental group could be explained through the activation of the sympathetic-excitatory system.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"1-13"},"PeriodicalIF":1.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144052066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinematic Analysis of Reaching Tasks at Different Execution Speeds in Children with Neonatal Brachial Plexus Palsy. 新生儿臂丛神经麻痹患儿在不同执行速度下伸手任务的运动学分析

IF 1.1 4区心理学

Journal of Motor Behavior Pub Date : 2025-01-01 Epub Date: 2024-11-03 DOI: 10.1080/00222895.2024.2416245

Daiane Lazzeri de Medeiros, Denise Martineli Rossi, Tenysson Will de Lemos, Richard van Emmerik, Luis Mochizuki, Anamaria Siriani de Oliveira

{"title":"Kinematic Analysis of Reaching Tasks at Different Execution Speeds in Children with Neonatal Brachial Plexus Palsy.","authors":"Daiane Lazzeri de Medeiros, Denise Martineli Rossi, Tenysson Will de Lemos, Richard van Emmerik, Luis Mochizuki, Anamaria Siriani de Oliveira","doi":"10.1080/00222895.2024.2416245","DOIUrl":"10.1080/00222895.2024.2416245","url":null,"abstract":"The aim of this study was to compare the kinematics of reaching tasks at different speeds between children with neonatal brachial plexus palsy (NBPP) and unaffected controls. This cross-sectional study included thirteen children with NBPP (10 ± 2 years old, of which six had upper Erb's palsy and seven had extended Erb's palsy) matched for age and sex with thirteen unaffected controls. Kinematic data were acquired using a Motion Monitor unit with a 3D motion tracking electromagnetic system (Liberty, Polhemus). Scapular, upper limb, and head were recorded during forward reaching tasks (hand on overhead ball and hand to head) and a backward reaching task (hand on the back pocket). The study revealed reduced shoulder flexion and extension in children with NBPP during hand on ball and on the back pocket tasks compared to unaffected controls. Limited elbow flexion was also observed in children with NBPP during the hand on ball and hand on the head tasks. During the hand to head task, children with NBPP presented increased head flexion compared to unaffected controls. Scapular kinematics analysis showed increased posterior tilt in children with NBPP during forward reaching (the hand on ball and hand to head tasks). In the backward reaching task (hand on the back pocket), the NBPP group exhibited reduced scapular external rotation compared to unaffected controls. These findings indicate distinct kinematics in the scapula, shoulder, elbow, and head during reaching tasks for children with NBPP compared to controls. Furthermore, different execution speeds did not alter the kinematic differences between the groups.","PeriodicalId":50125,"journal":{"name":"Journal of Motor Behavior","volume":" ","pages":"107-117"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0