The stretching exercises should be carried out in conjunction with strengthening exercises. If a specific musclegroup is restricted, more emphasis may be placed on that
area, but there must be stretching of all the major muscle
groups of the lower limb, because they all have an effect on
the biomechanics of the knee. Patients should be instructed
to hold a stretch for 20–30 seconds in order for it to be effective 46) . In addition to its sedative effect, stretching exercise
increases knee capsule extensibility and joint range of motion