Physical Activity and Health最新文献_第3页

Arm Swing during Vertical Jumps does not Increase EMG Activity of the Lower Limb Muscles 在垂直跳跃时手臂摆动不会增加下肢肌肉的肌电活动

Physical Activity and Health Pub Date : 2023-01-01 DOI: 10.5334/paah.263

B. Kovács, D. Csala, Ö. Sebestyén, J. Matlák, Ádám Groszmann, J. Tihanyi, L. Petridis

{"title":"Arm Swing during Vertical Jumps does not Increase EMG Activity of the Lower Limb Muscles","authors":"B. Kovács, D. Csala, Ö. Sebestyén, J. Matlák, Ádám Groszmann, J. Tihanyi, L. Petridis","doi":"10.5334/paah.263","DOIUrl":"https://doi.org/10.5334/paah.263","url":null,"abstract":"Arm swing improves vertical jump height but the underlying mechanism is not well understood. We assume that the negative acceleration of arm swing can increase the load and tension of the lower limb’s extensor muscles enhancing force output and resulting in higher jump. The purpose of this study was to examine how arm swing affects the EMG activity of the lower limb muscles during vertical jumping in relation to the arm swing kinematics. Sixteen physically active male college students were asked to perform squat (SJ) and countermovement jumps (CMJ) with arms akimbo and with arm swing. Jumps were carried out on a force platform while kinematic data and EMG activity of the right lower limb were measured. Jumping height increased by 33% in SJ and by 18.9% in CMJ when performed with arm swing. In SJ with arm swing the vertical ground reaction force (GRF) was larger during the negative acceleration of the arm (71–91% of the jump, p < 0.001) with significantly slower relative joint extension. Similarly, in CMJAS during the negative acceleration of the arm vertical GRF was larger (89–97% of the jump, p < 0.001) compared to CMJ. Arm swing increased the jump","PeriodicalId":32633,"journal":{"name":"Physical Activity and Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70696835","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

Aging Anxiety and Physical Activity Outcomes among Middle and Older Age African Americans 中老年非裔美国人的衰老焦虑和身体活动结果

Physical Activity and Health Pub Date : 2023-01-01 DOI: 10.5334/paah.287

Lillie Monroe-Lord, Elgloria Harrison, Azam Ardakani, Sarah L. Francis, Furong Xu, Melissa Ventura Marra, Lee Weidauer, Anna E. Arthur, Nadine R. Sahyoun

{"title":"Aging Anxiety and Physical Activity Outcomes among Middle and Older Age African Americans","authors":"Lillie Monroe-Lord, Elgloria Harrison, Azam Ardakani, Sarah L. Francis, Furong Xu, Melissa Ventura Marra, Lee Weidauer, Anna E. Arthur, Nadine R. Sahyoun","doi":"10.5334/paah.287","DOIUrl":"https://doi.org/10.5334/paah.287","url":null,"abstract":"Aging is a natural process but may lead to aging anxiety due to physical and mental health changes. Aging anxiety is more prevalent among African Americans compared to Whites. This study aimed to investigate the correlation between aging anxiety, its four constructs including fear of older adults (contact with older adults), psychological concerns (personal/internal issues), physical appearance (physical changes), and fear of loss (loss of autonomy and social relationships), with the different types of physical activity (PA), as well as the attitudes toward PA. A total of 178 African American adults aged 40 years and older completed an online Qualtrics survey. The Lasher and Faulkender survey was utilized for the purposes of obtaining data on aging anxiety. PA was measured using questions derived from the National Health Interview Survey questionnaire and miscellaneous Questions for PA attitudes. The results revealed that fear of loss was the most anxiety-inducing factor among the participants. Females were more fearful of older adults and more anxious about aging than males. Possessing an enjoyable attitude toward PA was associated with less fear of older adults, fewer psychological concerns, and a lower total score of aging anxiety. Physical appearance constructs were correlated with age and strengthening exercises. Younger participants were more worried about their appearance than older participants. Fear of loss was higher among single and lower-income participants. Interventions and mental health programs should consider addressing the fear of loss and promoting a positive attitude toward PA to alleviate aging anxiety among middle-aged and older African Americans.","PeriodicalId":32633,"journal":{"name":"Physical Activity and Health","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135846628","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

Tri-Axial Accelerometer-Based Recognition of Daily Activities Causing Shortness of Breath in COPD Patients 基于三轴加速度计的COPD患者日常活动导致呼吸短促的识别

Physical Activity and Health Pub Date : 2023-01-01 DOI: 10.5334/paah.224

Takahiro Yamane, Yuu Yamasaki, Wakana Nakashima, Mizuki Morita

引用次数: 3

Knowledge, Attitude and Practice of Physical Exercise Among Elderly People in Enugu Metropolis, Nigerian 尼日利亚埃努古市老年人体育锻炼的知识、态度和实践

Physical Activity and Health Pub Date : 2023-01-01 DOI: 10.5334/paah.212

I. Maduakolam, Chidiebere Paschaline Osude, S. Ede, A. Onyekachi-Chigbu, Chitoo Stephanie Osuorah, C. Okoh

引用次数: 0

The Association between Physical Activity and Mental Health among Danish Women Aged 16–34 Years 16-34岁丹麦妇女身体活动与心理健康之间的关系

Physical Activity and Health Pub Date : 2023-01-01 DOI: 10.5334/paah.253

Sabrina Tatiana, K. Ryom