No doubt, the standard, straight-arm high plank is a great exercise. “It really challenges your whole body,” says Wickham. “But because your arms are straight, you really have to activate ...

designed by fitness trainer Jo-Leigh Morris. Start in a straight-arm plank with your feet suspended off the ground in the foot cradles of your TRX. Lift your hips towards the ceiling – keeping ...

designed by fitness trainer Jo-Leigh Morris. Start in a straight-arm plank with your feet suspended off the ground in the foot cradles of your TRX. Lift your hips towards the ceiling – keeping ...

This is the workout: 10 partial single-arm sit-ups 15 leg lifts Side plank (on forearm) with dumbbell reach 15 reverse crunches 30-second forearm plank with dumbbell pull-through If these ...