The isometric abductor hallucis strengthening exercise targets the abductor hallucis muscle, a key stabiliser of the medial longitudinal arch of the foot and an important contributor to toe alignment, particularly at the first metatarsophalangeal joint. Strengthening this muscle can help manage or prevent conditions such as hallux valgus (bunion deformity), plantar fasciitis, and medial arch collapse. This isometric variation is often prescribed early in rehabilitation as it activates the muscle without requiring joint movement, reducing strain while re-establishing neuromuscular control.
- Sit comfortably with both feet flat on the floor, knees bent to 90 degrees, and hips in a neutral position.
- Loop a light theraband around both big toes so the band is taut when feet are about hip-width apart.
- Maintain your heels firmly on the ground and ensure your feet are pointing straight ahead.
- Gently press each big toe outward against the resistance of the band, aiming to move them away from the second toe without lifting or curling.
- Focus on initiating the movement from the muscle along the inside of your arch, not from the toe joint alone.
- Hold the contraction while keeping the rest of the foot relaxed and stable.
- Ensure the band maintains consistent tension throughout the hold.
- Hold/maintain as prescribed by your physiotherapist.