Plank to Pike with TRX
Start in a high plank position with your feet shoulder-width apart in the TRX foot cradles and hands directly under shoulders. Engage your core by bracing your abs. Your body should form a straight line from head to toes.
Move your feet forward while keeping your legs straight and abs engaged. This will create a pike stretch in your hamstrings and contracts your abdomen. Go as far forward as flexibility allows while maintaining a flat back.
Move your feet back to the starting plank position. That's one rep.
Repeat, moving the feet out and then back in for your desired number of reps. Maintain tension in the straps throughout the entire movement.
Focus on keeping your abs braced, back flat and legs straight as you pike your hips up and stretch the hamstrings. Control the movement both on the way out and way back in.