Meeuwsen H J
Texas Woman's University, Department of Kinesiology, Denton 76204.
Percept Mot Skills. 1991 Apr;72(2):539-43. doi: 10.2466/pms.1991.72.2.539.
The present study examined the effects of hip joint mobility and relative leg strength on perceived and attained action boundaries in bipedal stair climbing. If action boundaries are directly perceived and action is intimately linked to perception, one should be able to quantify these boundaries (Warren, 1984) and identify what variables affect these perceived boundaries. In the present experiment the perceived and attained absolute and relative (riser height divided by leg length) action boundaries were significantly affected by hip joint flexibility. Relative leg strength also affected absolute and relative perceived action boundaries. These results clearly show that factors in addition to body size and body proportions may affect the perception of affordances and their boundaries.
本研究考察了髋关节活动度和相对腿部力量对双足上楼梯时可感知及实际达到的行动边界的影响。如果行动边界是直接被感知的，且行动与感知紧密相连，那么人们应该能够量化这些边界（沃伦，1984年），并确定哪些变量会影响这些可感知的边界。在本实验中，可感知及实际达到的绝对和相对（台阶高度除以腿长）行动边界受到髋关节灵活性的显著影响。相对腿部力量也会影响绝对和相对可感知行动边界。这些结果清楚地表明，除了体型和身体比例之外的因素可能会影响对可供性及其边界的感知。
