Alternating Single Leg Crunches
This ab exercise mainly works your abs, with help from your obliques and hip flexors. Watch the demo video, then follow the tips below.
Rep Range
Time Based
How to do Alternating Single Leg Crunches
Lie on your back with arms straight out to the sides. Raise one knee towards your chest while crunching up, bringing hands around to meet the sides of that knee. Lower and repeat on the other side.
Common mistakes
Relying on neck or arm strength instead of engaging the core. Not maintaining a controlled movement.
Breathing
Exhale during the crunch; inhale as you lower and switch sides.
Muscles worked
Primary Muscles
Abs
Secondary Muscles
Obliques, Hip Flexors
