This foot-strengthening demonstration uses a hacky sack as a small piece of exercise equipment. The presenter introduces the muscles along the underside of the foot and describes them as the focus of the movement.
The demonstration is performed barefoot, with the heel resting on the floor beneath the knee. The toes draw the hacky sack back toward the heel, and the presenter discusses holding the contraction or repeating the movement, with a gradual build-up over time.
Watch the positioning and movement before treating the clip as an exercise reference. This overview does not prescribe repetitions or duration, and a qualified clinician can advise whether the exercise is appropriate for a painful or restricted foot.
Video length: 1 min 38 sec. Originally published on YouTube: .