Brazilian journal of motor behavior最新文献_第4页

Walking speed does not affect age-differences in ankle muscle beta-band intermuscular coherence during treadmill walking 行走速度不影响跑步机行走时踝关节肌β -带肌间一致性的年龄差异

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.323

P. C. Santos, I. Zijdewind, C. Lamoth, L. T. Gobbi, T. Hortobágyi

{"title":"Walking speed does not affect age-differences in ankle muscle beta-band intermuscular coherence during treadmill walking","authors":"P. C. Santos, I. Zijdewind, C. Lamoth, L. T. Gobbi, T. Hortobágyi","doi":"10.20338/bjmb.v16i5.323","DOIUrl":"https://doi.org/10.20338/bjmb.v16i5.323","url":null,"abstract":"Background: By examining whether age and speed each differently affects beta-coherence during walking, we can extend the limited evidence on age-related impairment in neural control of walking. We determined the effects of age and walking speed on intermuscular beta band coherence between lower limb muscle pairs and the association between stride characteristics and intermuscular beta band coherence between these muscle pairs. \u0000Methods: Older (n=12) and younger (n=14) individuals walked on a treadmill at fixed (1.2 m/s) and fast (~1.3x preferred) speeds for 3min. For 100 dominant leg strides, we measured length, width, stance, swing time, cadence and intermuscular beta-coherence (15-35Hz) for the synergistic (biceps femoris (BF)-semitendinosus, rectus femoris (RF)-vastus lateralis (VL), gastrocnemius lateralis (GL)-soleus (SL), Tibialis anterior (TA)-peroneus longus (PL)) and the antagonistic (RF-BF and TA-GL) muscle pairs at swing and stance. \u0000Results: Comparing fast vs. fixed speed, participants walked with increased length (21%), cadence (12%), and coefficient of variation (CV) of stride length (14%), decreased stride width (-20%), and stance (-5%) and swing time (-14%) and with stronger TA-GL beta-coherence during early stance (69%, all p<0.01). Older vs. Younger individuals walked with slower fast gait speed (~9%), higher CV of stride length (21%), weaker GL-SL (-47%) and TA-PL (-60%) beta-coherences during the late swing and early stance phase, respectively (all p<0.01). No Group*Condition interactions occurred \u0000Conclusion: Oscillatory coupling between synergistic ankle muscle pairs during walking is lower in older vs. young individuals, but this difference is independent of walking speed while walking on a treadmill.","PeriodicalId":91007,"journal":{"name":"Brazilian journal of motor behavior","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79883440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proactive control to navigate our daily environments 主动控制我们的日常环境

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.319

B. McFadyen, A. Lamontagne, Olivier Anne-Helene, Pettre Julien, M. Cinelli, F. Barbieri

引用次数: 0

Editorial: Effects of aging on locomotor patterns 社论:衰老对运动模式的影响

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.353

P. C. Santos, D. Orcioli-Silva

引用次数: 0

Mechanisms that stabilize human walking 稳定人类行走的机制

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.321

Moira van Leeuwen, S. Bruijn, J. V. van Dieën

{"title":"Mechanisms that stabilize human walking","authors":"Moira van Leeuwen, S. Bruijn, J. V. van Dieën","doi":"10.20338/bjmb.v16i5.321","DOIUrl":"https://doi.org/10.20338/bjmb.v16i5.321","url":null,"abstract":"\u0000 \u0000 \u0000In this paper we review what mechanisms are used to stabilize human bipedal gait. Based on mechanical reasoning, potential mechanisms to control the body center of mass trajectory are modulation of foot placement, stance leg control consisting of modulation of ankle moments and push-off forces, and modulations of the body’s angular momentum. The first two mechanisms and especially the first are dominant in controlling center of mass accelerations during gait, while angular momentum control plays a lesser role, but may be important to control body alignment and orientation. The same control mechanisms stabilize both steady-state and perturbed gait in both the mediolateral and antero-posterior directions. Control is at least in part active and is affected by proprioceptive, visual and vestibular information. Results support that this reflects a feedback process in which sensory information is used to obtain an estimate of the center of mass state based on which foot placement and ankle moments are modulated. These active feedback mechanisms suggest training approaches for populations at risk of falling, such as augmenting their effective use by means of augmented feedback, or using their complementary nature to train one mechanism by constraining the other mechanisms. \u0000 \u0000 \u0000","PeriodicalId":91007,"journal":{"name":"Brazilian journal of motor behavior","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78438159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Inadvertent obstacle contacts when older adults step over obstacles: Effect of sex, self-reported fatigue, gait parameters, and prescription medications 老年人跨越障碍时的无意接触障碍:性别、自我报告的疲劳、步态参数和处方药的影响

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i4.317

Timothy D. Becker, S. Rietdyk

{"title":"Inadvertent obstacle contacts when older adults step over obstacles: Effect of sex, self-reported fatigue, gait parameters, and prescription medications","authors":"Timothy D. Becker, S. Rietdyk","doi":"10.20338/bjmb.v16i4.317","DOIUrl":"https://doi.org/10.20338/bjmb.v16i4.317","url":null,"abstract":"Background: Tripping is a common cause of falls, but the factors that are associated with trip risk are understudied. \u0000Aim: To quantify inadvertent trips with a stationary, visible obstacle in older adults, and to determine how inadvertent trips are related to fatigue, sex, gait measures, and prescription medications. \u0000Methods: Forty-one subjects walked on a 6 m walkway and stepped over a visible, stationary obstacle (height: 25% of leg length) 100 times; inadvertent trips with the obstacle were documented. We also collected gait measures on a clear walkway, self-reported fatigue every 25 obstacle crossing trials, and number of prescription medications. Participants were categorized as: 0 contacts or ≥1 contact. \u0000Results: The obstacle was contacted by 15 participants (37%) in 29 trials (0.7% of all trials); 52% of contacts were with the lead limb. Self-reported fatigue increased during the obstacle crossing protocol (p<0.001). Participants in the ≥1 contact group had slower gait speed, shorter stride length, and higher gait cycle time variability (p≤0.041). They also reported higher maximum fatigue (p=0.022) and a higher number of prescription medications (p=0.019). Males and females were not different in contact frequency (p=0.93). \u0000Interpretation: Inadvertent trips were not uncommon in older adults, even with a visible, stationary obstacle. Lead limb contacts indicate that older adults will have more difficulty recovering their balance after a trip. The strong association between fatigue (induced by walking) and impaired gait is highly relevant when quantifying gait in older adults, and also when developing fall prevention programs.","PeriodicalId":91007,"journal":{"name":"Brazilian journal of motor behavior","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83409319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-task performance in seniors with mild cognitive impairment and Alzheimer’s disease: a longitudinal study 老年轻度认知障碍和阿尔茨海默病的双任务表现:一项纵向研究

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.309

D. C. P. Silva, J. Ansai, L. M. Melo, Ana C V G Ferreira, P. Rossi, F. Vale, L. Andrade

{"title":"Dual-task performance in seniors with mild cognitive impairment and Alzheimer’s disease: a longitudinal study","authors":"D. C. P. Silva, J. Ansai, L. M. Melo, Ana C V G Ferreira, P. Rossi, F. Vale, L. Andrade","doi":"10.20338/bjmb.v16i5.309","DOIUrl":"https://doi.org/10.20338/bjmb.v16i5.309","url":null,"abstract":"BACKGROUND: Motor performance in older adults with cognitive impairment is worse under dual task conditions, increasing the risk of falls. However, there is a lack of studies that analyze this performance over time in people with different cognitive profiles.\u0000AIM: This study aimed to compare the performance of an isolated task and a dual task in people with preserved cognition (PrC), mild cognitive impairment (MCI) and Alzheimer`s disease (AD).\u0000METHOD: Data were collected on two occasions (T1; T2), thirty-two months apart. Participants (n=51) were separated between groups: PrC (n=22), MCI (n=19) and AD (n=10). They were analyzed in three situations: 1) isolated motor task - Timed up and go test (TUGT); 2) cognitive-motor test (CMT)– dialing on the phone; 3) dual task (DT). To compare the performance of the dual task between the groups, delta was calculated and the ANCOVA test was applied.\u0000RESULTS: Although the cost of the dual task was not significantly different over time in any group, we found increases in the time required to complete the TUGT (p<0.01) and TUGT-DT (p>0.01) after 32 months in the AD group and a reduction in time in the PrC and MCI groups. A greater number of steps in the TUGT-DT (p<0.01) and an increase in cadence in the TUGT (p=0.01) and TUGT-DT (p<0.01) were also found in the AD group.\u0000CONCLUSION:We suggest that a more functional task, such as walking while typing on the phone, may be considered a more sensitive way of assessing older adults with AD.","PeriodicalId":91007,"journal":{"name":"Brazilian journal of motor behavior","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89026368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gait velocity and stability are correlated to muscle and bone mass loss in people with Parkinson’s disease: a preliminary study 一项初步研究表明，帕金森病患者的步态速度和稳定性与肌肉和骨量损失有关

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i5.346

F. Barbieri, M. H. Faria, Lucas Similei, T. Penedo, C. A. Kalva Filho, V. S. Beretta

{"title":"Gait velocity and stability are correlated to muscle and bone mass loss in people with Parkinson’s disease: a preliminary study","authors":"F. Barbieri, M. H. Faria, Lucas Similei, T. Penedo, C. A. Kalva Filho, V. S. Beretta","doi":"10.20338/bjmb.v16i5.346","DOIUrl":"https://doi.org/10.20338/bjmb.v16i5.346","url":null,"abstract":"Background: Parkinson’s disease (PD) exacerbates muscle and bone mass loss, which is associated with several negative outcomes such as falls and disability. Thus, muscle and bone mass loss may be one mechanism for the mediator role between gait impairments and PD. Aim: To verify the relationship between the spatial-temporal gait parameters and the body composition of the lower limbs in people with PD. Method: Thirteen people with PD were evaluated on two different days: i) clinical and gait evaluation; ii) body composition evaluation. The step length, width, duration and speed, the percentage in double support, and gait velocity during walking at self-selected velocity. Dual-energy X-ray absorptiometry technique was used to measure fat mass, lean mass, bone mass, and the total mass, for whole body, and separately for each limb. Pearson’s correlation coefficients were applied between the spatial-temporal gait parameters and the variables of body composition of lower limbs. Results: Reduced lean and bone mass of both legs were related to faster gait velocity (r=0.6, p<0.03 and r=0.7, p<0.01, respectively) and step speed (r=0.5, p<0.05 and r=0.65, p<0.02, respectively). Also, narrower step width was related to the higher bone mass of both legs (r=0.6, p<0.03). However, muscle and bone mass did not correlate with step length and duration, and percentage of double support. Interpretation:Our findings suggest that the muscle and bone mass of the lower limbs are important body characteristics for gait impairments in people with PD and should be monitored over the disease.","PeriodicalId":91007,"journal":{"name":"Brazilian journal of motor behavior","volume":"534 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82158170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The trajectory of Lilian Teresa Bucken Gobbi (1956-2022): An eminent researcher of gait and posture 莉莲·特蕾莎·巴肯·戈比的轨迹(1956-2022):一位杰出的步态和姿势研究者

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i4.338

Renato Moraes, Veronica Miyasike-daSilva, D. Orcioli-Silva, R. Vitório, F. Barbieri, C. Silveira

引用次数: 1

Quiet eye training alleviates the yips in golf putting: a research proposal 静眼训练减轻高尔夫球推杆时的嘴唇:一项研究提案

Brazilian journal of motor behavior Pub Date : 2022-12-15 DOI: 10.20338/bjmb.v16i4.300

J. Vickers

引用次数: 0

Does the hippocampus exhibit offline reactivation of neural activity following motor sequence learning? 在运动序列学习后，海马体是否表现出离线的神经活动再激活?

Brazilian journal of motor behavior Pub Date : 2022-09-01 DOI: 10.20338/bjmb.v16i3.297

B. King, A. Van Roy, Ainsley Temudo, Kaitlyn Dwenger, Mareike A. Gann, G. Albouy

引用次数: 0