التحليل البيوميكانيكي لصعود الدرج بطريقتين مختلفتين

الملخص EN

This study aimed at identifying the values of some biomechanical variables to stair ascent in two different ways, as well to explore the best style stairs ascent .The study sample consisted of (n=4) healthy students in the Faculty of Physical Education at The University of Jordan .Individuals (average age 24 years, and the average of height 185 cm, and the average of mass 89.5 kg).The study examined the angles of flexion joints(hip, knee, and ankle) at the moment of contact flattened, as well maximum height of the front feet, and the distance of the foot is based on stair, and the work done and power in the two methods.

The researchers utilized two different techniques in stairs ascent (step over step, step by step).The study sample was videotaped by using Sony video camera (Sony HDRCX220E) reached speed (50) frame/s .The study results showed that the values of the variables of the study was relatively high compared to the values achieved in previous studies, as well as the step by step technique used in stairs ascent was better than the other technique depending on the work done, the power and the values of the variables in this study.

The researchers recommends the importance of necessity to learn correct technique for stairs ascent, as well as using step- by- step technique for the elderly people depending on values of the achieved variables.