The maintenance of posture in a normal adult human being depends upon:
A i.e. Integrity of Reflex arc'Postural Reflexes not only maintain the body in an upright balanced position but also provide the constant adjustments necessary to maintain a stable postural background for voluntary activity'- Ganong 22"V207Integrity of the postural reflex arc is therefore the single best answer of choice.
Integrity of reflex arc
Muscle power
Type of muscle fibers
Joint movements in physiological range
Integrity of reflex arc