# Suspension Trainer Knee Tuck

URL: https://heatsy.app/ex/suspension-trainer-knee-tuck

Also known as: TRX Knee Tuck, Suspension Knee Tuck, Suspension Trainer Crunch, TRX Crunch, Suspension Crunch

Body region: Core, Shoulders, Legs

## Muscles

- Main: Rectus Abdominis, Iliopsoas
- Helps: Deltoid, Serratus Anterior, Rectus Femoris
- Holds: Pectoralis Major, Transversus Abdominis

## Equipment

- Suspension Trainer

## Technique

1. Place your feet in the foot cradles and hold a push-up position with your hands under your shoulders.
2. Brace your abs and keep the body in a straight line.
3. Draw both knees toward your chest, letting the hips lift a little.
4. Extend the legs back to the plank without sagging.

### Cues

- Pull the knees in by curling the pelvis.
- Keep the arms straight.

### Common mistakes

- Letting the hips sag in the plank.
- Swinging the straps.
- Shrugging the shoulders.

## Alternatives

- [Stability Ball Knee Tuck](https://heatsy.app/ex/stability-ball-knee-tuck)
- [Suspension Trainer Pike](https://heatsy.app/ex/suspension-trainer-pike)