How to do the Sprinter Crunch
- 1Lie flat on your back with your legs extended and arms by your sides.
- 2Simultaneously lift your left leg and right arm towards each other while crunching your torso.
- 3Return to the starting position and repeat with the opposite arm and leg.
- 4Continue alternating sides in a controlled manner.
Muscle group
Core
Type
Reps Only
Equipment
None needed






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