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Tibialis Posterior with ball
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Tibialis Posterior with ball

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How to Perform

  1. Sit on a chair with your feet flat on the floor and position a small, firm ball under your mid-foot or arch area.
  2. Maintain an upright posture with your spine neutral and shoulders relaxed, placing your hands on your thighs for support.
  3. Press the inside edge of your foot down into the ball while keeping your heel and the ball of your foot in contact with the ground.
  4. Breathe normally as you apply pressure, focusing on activating the tibialis posterior muscle that runs along the inside of your lower leg.
  5. Hold the contracted position for 2-3 seconds while maintaining tension through the arch of your foot.
  6. Slowly release the pressure, returning to the starting position while maintaining control throughout the movement.
  7. Repeat for the prescribed number of repetitions before switching to the other foot, ensuring equal work on both sides.
  8. As you progress, increase the duration of the contraction or the firmness of the ball to add resistance.

Important information

  • Keep your toes relaxed and avoid curling them during the exercise, as this may recruit other foot muscles instead of targeting the tibialis posterior.
  • Make sure your knee stays aligned with your foot throughout the movement to prevent unnecessary stress on the knee joint.
  • If you experience any sharp pain (rather than the normal feeling of muscle work), stop immediately and reassess your technique or consult with a professional.
  • For better results, perform this exercise barefoot to maximize proprioception and muscle activation in the foot.

Exercise Details

Primary Muscles

Calves

Muscle Groups

Leg exercises

Mechanic

Isolation

Risk Areas

Calves

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The tibialis posterior, often overlooked in standard training programs, serves as a critical stabilizer for the foot arch and plays an essential role in ankle movement. This intermediate-level exercise focuses on strengthening the deeper muscles of the calves while enhancing both mobility and stability throughout the lower leg. Using a small therapy ball provides gentle pressure that helps isolate this muscle, which runs along the inner portion of your lower leg behind the shin bone and attaches to multiple points in the foot. Working the tibialis posterior effectively contributes to overall ankle health, potentially reducing the risk of common issues like plantar fasciitis, shin splints, and overpronation during walking or running. 

The pressure from the ball helps release tension in this hard-to-reach muscle while simultaneously activating it in a controlled manner. This dual action makes it particularly valuable as part of a recovery or cool-down routine after more intense lower body training. Regular attention to this muscle can significantly improve foot mechanics and ankle mobility, creating a more stable foundation for compound movements like squats and deadlifts. The tibialis posterior also works synergistically with other lower leg muscles to control excessive foot flattening during dynamic movements, making this exercise beneficial for athletes across various disciplines who need to maintain proper foot positioning during rapid directional changes. 

As both a strength and mobility exercise, working the tibialis posterior with a ball offers a gentle yet effective way to address an area that's frequently tight and underactive in many fitness enthusiasts. This balanced approach to lower leg training helps create symmetry between the anterior and posterior compartments of the lower leg, potentially reducing compensation patterns that might lead to discomfort or injury over time.

FAQ - Tibialis Posterior with ball

What muscles does the Tibialis Posterior with ball exercise target?

This exercise primarily targets the tibialis posterior muscle, which runs along the inner portion of your lower leg behind the shin bone. It also engages other deep calf muscles and helps activate the intrinsic foot muscles that support your arch.

How often should I perform this exercise?

Aim to incorporate this exercise 2-3 times per week, either as part of your warm-up routine or as a standalone recovery session. For maintenance, 2-3 sets of 30-60 seconds per leg is typically sufficient.

Is this exercise suitable for someone with plantar fasciitis?

Yes, when performed correctly, this exercise can actually help alleviate plantar fasciitis by strengthening the muscles that support your foot arch. Start gently with light pressure and shorter durations, increasing gradually as comfort allows.

What size and type of ball works best for this exercise?

A small therapy ball or lacrosse ball (2-3 inches in diameter) works best. The ball should be firm enough to apply pressure but have some give to avoid discomfort. Softer balls are recommended for beginners, while firmer options provide more intense release.

What are common mistakes to avoid when performing this exercise?

The most common mistakes include rushing through the movement, using momentum instead of controlled motion, and forcing rotation beyond your comfortable range. Keep the movement slow and deliberate, breathe throughout the exercise, and never push through sharp or shooting pain.

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