Box Single Leg Assisted Pull-up

The Box Single Leg Assisted Pull-up helps you build upper body strength while focusing on single-leg stability.

  1. Stand on a sturdy box with one leg.
  2. Grip the pull-up bar with both hands.
  3. Engage your core and pull your body upward while using the box for assistance.
  4. Lower yourself back down with control.

How to perform the Box Single Leg Assisted Pull-up

  1. Set up. Set up in a stable, balanced starting position appropriate for the Box Single Leg Assisted Pull-up using your body weight.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your latissimus dorsi.
  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 latissimus dorsi 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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