Zac Efron’s former personal trainer says two common abdominal exercises are a waste of time. Here’s what he recommends instead.
Patrick Murphy never does overhead knee raises because they work the hip flexors more than the abs. The celebrity trainer said Russian twists were also ineffective and could lead to back pain. Instead, he recommends crunches with resistance and anti-rotation holds with bands or cables. Loading Something is loading. Thank you for your registration! Access …
