Crunch (straight leg up)
Expert Advice
Keep your legs together and straight to engage both the abs and hip flexors effectively.
How-to-do Steps
- Lie on your back with your legs extended straight up towards the ceiling.
- Place your hands behind your head or across your chest.
- Perform a crunch by lifting your shoulder blades off the floor.
- Lower back down with control.
- Repeat for the desired number of repetitions.
Details
Primary

Abs70%
Secondary

Quads30%
Equipment
Body weight

Exercise Type
Strength