The clam shell is simple, yes, but its benefits are seriously legit. Here we cover all you need to know about this super-effective move, including which muscles it works, what type of exercise it ...

‘The clamshell is an isolation exercise and the body will adapt to it quickly by gaining strength, so this needs to be overloaded by adding bands of increasing resistance,’ confirms Woodward.

Brace your core and, initiating the movement with the glutes, raise the top knee toward the ceiling. ‘It can be useful to imagine you are wedged between two panes of glass, preventing any excessive ...

How to do the clamshell exercise Complete two sets of 10 reps on each side: Lie on your left side, with your legs together and knees bent. Activate your side abs and squeeze your glutes.