90 Degree Single Knee Crunch
Gym Exercise Card
Equipment
The 90 Degree Single Knee Crunch is an abdominal exercise focusing on strengthening the core muscles by bringing one knee towards the chest while maintaining the opposite leg elevated. It challenges stability and engages core muscles effectively.
How to do it
- Lie flat on your back with your legs raised to a 90-degree angle and knees bent.
- Place your hands by your sides for support.
- Engage your core and lift one knee towards your chest while keeping the other leg steady.
- Lower the knee back to the starting position.
- Repeat with the opposite knee.
Muscles worked
Primary Rectus Abdominis
Secondary Obliques
Similar lifts
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