8 multiple choice 1 point how does hip flexion change when it is done in the position depicted below as…
8 multiple choice 1 point how does hip flexion change when it is done in the position depicted below as opposed to standing? it stays the same it increases by about 30 degrees it decreases by about 20 degrees it increases by about 10 degrees clear my selection
Answer
Brief Explanations:
When the hip is flexed in the supine position (lying down) with the knee bent as depicted, compared to standing, the range of hip flexion is affected. In the standing position, the iliopsoas (a major hip - flexor muscle) has to work against gravity and also has a certain length - tension relationship. When lying down and bringing the knee towards the chest, the effect of gravity on the hip - flexor muscles is reduced. However, in the standing position, the normal range of hip flexion is around 120 degrees. In the supine position with the knee bent (as in the figure), the range of hip flexion is approximately 100 degrees. So, it decreases by about 20 degrees.
Answer:
It decreases by about 20 degrees.