Alternating Lying Leg Jackknife
Incinerate your core with this focused floor exercise. By alternating limbs, you’ll target your obliques and lower abs for a stronger, more stable midline and a shredded aesthetic.
Instructions
Setup
Lie flat on your back on a mat with your legs extended straight and arms stretched overhead. Your body should form a long, straight line.
Movement
Engage Core: Tighten your abdominal muscles and exhale as you start the movement.
Lift Arm and Leg: Simultaneously lift one leg while reaching your opposite arm toward the raised foot, performing a crunching motion to bring your torso slightly off the floor.
Controlled Descent: Inhale as you slowly lower your arm and leg back down to the starting position with control, maintaining tension in the core throughout.
Repeat: Alternate to the opposite arm and leg, ensuring that your lower back stays pressed firmly against the mat at all times.
Tips for Success
Focus on moving with deliberate control rather than using momentum.
Keep your spine in a neutral position to avoid strain.
Ensure you are lifting your shoulders off the ground far enough to engage the abs fully with each repetition.