Nail it: Keep your core tight and engaged throughout entire exercise movement as if you were doing a plank. (womenshealthandfitness.com.au)
• Remain in lunge position • Lower medicine ball down behind the head • Ensure elbows and upper arms are kept back in alignment with the side of the head • Extend medicine ball back to original position directly above the head • Return to start position, feet together, medicine ball extended directly above the head • Repeat entire exercise with alternate leg (womenshealthandfitness.com.au)
Why: Isolating the triceps one arm at a time with cable extensions helps concentrate on the triceps muscle and ensures continuous muscle tension throughout entire exercise. (womenshealthandfitness.com.au)