排序方式: 共有42条查询结果,搜索用时 0 毫秒
41.
Luca Oggiano Olga Troynikov Inna Konopov Aleksandar Subic Firoz Alam 《Sports Engineering》2009,12(1):1-12
Wind tunnel testing has been carried out on nine-knitted single jersey fabrics (100% polyester) using cylinder and leg models
to determine its aerodynamic behaviour over a range of speeds (20–80 km/h) representative of sports activities. Strong correlation
between fabric manufacturing (cover factor) and fabric roughness and aerodynamic parameters has been established. Similar
aerodynamic behaviour of fabrics was observed when tested on the cylinder model and on the leg model. 相似文献
42.
The aim of this systematic review was to investigate the longitudinal relationship between physical activity (PA) and the psychological domains of well-being in older adults and to identify possible moderators and mediators of this relationship. Twelve longitudinal investigations were included in this review. The results indicate that there seems to be a positive association between PA and psychological well-being over time. Thus PA may be one possible individual lifestyle factor for the long-term promotion of psychological well-being in older adults. Especially leisure time PA at light intensities conducted in group settings was identified to be beneficial for promoting psychological well-being. Furthermore, longitudinal results indicated that self-efficacy, self-esteem, affect, optimism, and pre-interventional motivation moderated/mediated the relationship between PA and psychological well-being in older adults. 相似文献