As used in the phrase null and void, refers to something that binds no one or is incapable of giving rise to any rights or duties under any circumstances.
The quadriceps is muscle group consisting of four muscles that flex the knee, which is a major movement of the farmerâs walk. These muscles are the rectus femoris, vastus intermedius, vastus lateralis, and vastus intermedius.
Though not targeted directly, several muscles in your upper body are exercised while walking. The abdominal muscles are used to support your torso as well as stabilize your pelvis while the muscles of your back work to maintain posture and keep your body in the upright position.