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Hold the tension
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Hollow body hold

The foundation of whole-body tension in calisthenics. Lie on your back, lower back pressed into the floor, shoulders and legs lifted, arms overhead.

Level
Start
Equipment
No equipment
Measure
hold time
Tempo
isometric
core

Technique

  1. Press the lower back into the floor and keep it there for the whole set.
  2. Lift the shoulder blades and legs a few inches, toes together.
  3. Arms extended overhead in line with the trunk, chin slightly tucked.
  4. The lower the legs, the harder it gets. If the lower back lifts, raise the legs or bend the knees.

Common mistakes

  • Lower back lifting off the floor: shorten the lever (legs higher, arms by the sides).
  • Craning the head back: look at your feet, not the ceiling.
3D preview of a dumbbell curl 3D preview of a dumbbell curl

The 3D model is in Pro

More plans, custom workouts and 3D are included in Pro. Your starter plan stays free.

  • 3D model of every exercise: rotate the camera and inspect the movement
  • Working muscles highlighted on the model in every phase
  • All progression paths with sets, targets and rest
  • Training log, level passes, records and charts
  • Web app on your phone and computer

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