Bicycle Crunch

What it is

Lying on your back, you bring one elbow toward the opposite knee while the other leg extends, then switch in a pedaling motion. It trains the abs and obliques. Move slowly enough to rotate fully.

Technique tips

• Hands lightly behind the head
• Rotate the shoulder toward the opposite knee
• Extend the other leg fully
• Keep the lower back on the floor

How to track your progress

Log reps, and add the extra load if you wear a belt or a vest. Straddly counts your bodyweight in the estimated max, so added weight and extra reps both show up as progress, and new records are flagged during the session.