Cocoons

Advanced abdominal exercise that combines a crunch with a knee tuck, targeting the entire core through simultaneous upper and lower body movement.
Instructions
- Begin by lying on your back on the ground. Your legs should be straight and your arms extended behind your head. This will be your starting position.
- Simultaneously tuck your knees toward your chest and crunch your upper body forward, bringing your arms over your head and toward your knees.
- Rotate your pelvis to lift your glutes from the floor as you flex your spine.
- Hold the contracted position briefly, squeezing your abdominals.
- After a brief pause, slowly return to the starting position.
- Repeat for the prescribed amount of repetitions.
Tips
- Perform both the crunch and knee tuck simultaneously for maximum core engagement.
- Keep the movement controlled; avoid using momentum to swing your body.
- Focus on contracting your abs rather than pulling with your hip flexors.
- Exhale as you pull your knees to your chest and crunch up.
- This exercise is challenging; start with fewer reps and progress gradually.
- Maintain steady breathing throughout the movement.
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 | Reps |
|---|---|---|
| Gain strength | 3 | 15 reps |
| Build muscle | 3 | 18 reps |
| Build endurance | 3 | 25 reps |
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