During the upward phase of a controlled squat, which knee action occurs?
- AKnee extension
- BKnee flexion as the hamstrings shorten
- CKnee flexion controlled by lengthening quadriceps
- DA static knee angle while the hips extend
Show answer and explanations
Answer
A
On the way up the knee straightens: knee extension, produced by the quadriceps acting concentrically.
B
Hamstring shortening flexes the knee; the knee is straightening during the ascent.
C
Knee flexion with eccentric quadriceps control describes the descent, not the upward phase.
D
The hips do extend, but the knee angle also opens as the client rises; it is not held static.
A
On the way up the knee straightens: knee extension, produced by the quadriceps acting concentrically.