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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
Q1 Medicine Pub Date : 2023-01-01 DOI: 10.5334/paah.263
B. Kovács, D. Csala, Ö. Sebestyén, J. Matlák, Ádám Groszmann, J. Tihanyi, L. Petridis
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
手臂的摆动提高了垂直跳高,但其潜在的机制尚不清楚。我们假设手臂摆动的负加速度可以增加下肢伸肌的负荷和张力,增强力量输出,从而导致更高的跳跃。本研究的目的是研究手臂摆动如何影响垂直跳跃过程中下肢肌肉的肌电活动。研究要求16名身体活跃的男大学生在两手叉腰和摆臂的情况下进行深蹲(SJ)和反向跳跃(CMJ)。在一个力平台上进行跳跃,同时测量右下肢的运动学数据和肌电活动。当手臂摆动时,SJ的跳高增加了33%,CMJ的跳高增加了18.9%。摆臂运动员在臂负加速度时垂直着地反力(GRF)更大(71% ~ 91%,p < 0.001),相对关节伸展明显减慢。同样,在CMJAS中,在手臂负加速度期间,垂直GRF比CMJ更大(89-97%的跳跃,p < 0.001)。手臂的摆动增加了跳跃
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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
Q1 Medicine 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
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.
衰老是一个自然过程,但也可能由于身心健康的变化而导致衰老焦虑。与白人相比,非裔美国人的衰老焦虑更为普遍。本研究旨在探讨衰老焦虑的四个构式,包括对老年人的恐惧(与老年人接触)、心理关注(个人/内在问题)、外貌(身体变化)和丧失恐惧(自主性和社会关系的丧失),与不同类型的体育活动(PA)以及对PA的态度之间的关系。共有178名40岁及以上的非裔美国成年人完成了一项在线素质调查。Lasher和Faulkender的调查是为了获得关于衰老焦虑的数据。对个人感受的测量采用了来自全国健康访谈调查问卷的问题和个人感受态度的杂项问题。结果显示,对损失的恐惧是参与者中最容易引起焦虑的因素。女性比男性更害怕老年人,对衰老也更焦虑。对老年生活持愉快态度的人对老年人的恐惧程度较低,心理担忧较少,老年焦虑总分较低。外貌结构与年龄和强化锻炼相关。年轻的参与者比年长的参与者更担心自己的外表。单身和低收入参与者对损失的恐惧程度更高。干预措施和心理健康项目应考虑解决对失去的恐惧,并促进对PA的积极态度,以减轻中老年非洲裔美国人的衰老焦虑。
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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
Q1 Medicine Pub Date : 2023-01-01 DOI: 10.5334/paah.224
Takahiro Yamane, Yuu Yamasaki, Wakana Nakashima, Mizuki Morita
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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
Q1 Medicine 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
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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
Q1 Medicine Pub Date : 2023-01-01 DOI: 10.5334/paah.253
Sabrina Tatiana, K. Ryom
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引用次数: 1
Physical Activity Beliefs and Behaviors during Pregnancy and their Association with Provider Counseling among Women in the Southern United States 美国南部妇女怀孕期间的体育活动信念和行为及其与提供者咨询的关系
Q1 Medicine Pub Date : 2022-12-30 DOI: 10.5334/paah.210
Christiana C. Rebelle, Shannon Jette, John Michael Mills, Rachel A Tinius
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引用次数: 0
A Pilot 6-Week Lifestyle Intervention in Women Aged 50+ in Ireland 爱尔兰50岁以上妇女6周生活方式干预试验
Q1 Medicine Pub Date : 2022-09-16 DOI: 10.5334/paah.195
D. Cooper, R. Kavanagh, J. Bolton, L. Keaver
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引用次数: 2
‘You are Constantly Trying to Make the Best Out of All Situations’: Adolescents with Overweight and School Health Nurses in Norway on Weight Stigma and Physical Activity “你总是试图在所有情况下做到最好”:挪威超重青少年和学校保健护士关于体重耻辱和身体活动的问题
Q1 Medicine Pub Date : 2022-09-02 DOI: 10.5334/paah.197
Ingeborg B. Skogen, S. L. Dahl, K. Høydal
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引用次数: 0
The Effect of Application of Asymmetry Evaluation in Competitive Sports: A Systematic Review 非对称评价在竞技体育中的应用效果:系统评价
Q1 Medicine Pub Date : 2022-08-05 DOI: 10.37766/inplasy2022.8.0023
Zixiang Gao
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引用次数: 6
Reflections, Impact and Future Recommendations Following ‘Prime Time of Life’ – an Online 12-week Multimodal Physical Activity and Health Education Programme for Middle Aged and Older Adults in Laois “生命黄金时间”后的反思、影响和未来建议——老挝中老年人在线12周多模式体育活动和健康教育方案
Q1 Medicine Pub Date : 2022-06-30 DOI: 10.5334/paah.181
R. Kavanagh, D. Cooper, S. O’Connor
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引用次数: 0
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Physical Activity and Health
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