Plank (Medicine Ball)

Level
intermediate
Force
static
Mechanic
compound
Equipment
medicine ball
Category
strength
Primary Muscles

A plank variation where hands rest on a medicine ball, increasing core instability demands and shoulder stabilizer activation.

Instructions

  1. Begin in a plank position with both hands placed on a medicine ball, arms fully extended.
  2. Maintain a straight line from your head through your heels.
  3. Keep your core tight and avoid hips sagging or rotating.
  4. Hold this position for the prescribed time duration.
  5. Focus on steady, controlled breathing throughout.
  6. Maintain tension in your entire core, shoulders, and glutes.

Tips

  • The medicine ball adds significant instability; start with shorter holds until adapted.
  • Keep your shoulders directly over the ball for proper alignment.
  • Engage your glutes to prevent your hips from sagging.
  • Breathe steadily; do not hold your breath.
  • This is an excellent core stability exercise using an unstable surface.
  • Progress by increasing hold duration rather than adding movement complexity.

Recommended starting values

Sensible novice starting points for each goal, for a lifter aged 25–40. Scale down for smaller frames or older lifters. Treat the first set of any session as a discovery set.

Goal Sets Hold
Gain strength 3 15 s
Build muscle 3 25 s
Build endurance 3 35 s

Alternatives

Exercises that target the same muscles with the same force and mechanic.

intermediate strength

Supine Plank on Elbows (TRX / Suspension Trainer)

Learn more about supine plank on elbows (trx / suspension trainer)
beginner strength

Supine Plank on Hands (TRX / Suspension Trainer)

Learn more about supine plank on hands (trx / suspension trainer)
intermediate strength