Stand with your feet shoulder-width apart. Hold the medicine ball in one hand. Raise the ball overhead. Powerfully slam the ball onto the ground in front of you using your core and upper body. Catch the rebound and repeat.

How to perform the One Arm Slam (With Medicine Ball)

  1. Set up. Set up in a stable, balanced starting position appropriate for the One Arm Slam (With Medicine Ball) using your medicine ball.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your pectoralis major.
  3. Reset. Reverse the movement under control and reset between repetitions, keeping your form crisp on every rep.

Coaching cues

  • Move with intent — every rep should feel deliberate, not rushed.
  • Drive force through your pectoralis major rather than momentum.
  • Keep your breathing steady: exhale on the hard part, inhale on the reset.

Common mistakes

  • Using too much weight and losing positional control.
  • Cutting the range of motion short and missing the target muscle.
  • Letting your spine round or hyperextend instead of staying neutral.

Detailed cues, common mistakes, and demonstration video are available in the Fitly app.

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