STRONGER ALL OVER

This move is a busy multitasker's dream-it targets all the main muscle groups at once. Shoulder taps will light up not only your core and shoulders but also the muscles in your back, legs, and glutes, making this exercise efficient when you are short on time but want to get in some resistance work.

- JUSTIN STEELE.

1 Start in plank position—your body should form a diagonal line.