4. Hold the position for 30 seconds and then switch sides. 2. Plank The plank is a classic for a reason. Rees says this exercise is great for targeting the entirety of your core and that ...

Planks are widely considered by fitness experts to be a fantastic exercise to strengthen the muscles in your core and elsewhere, no matter your age or physical fitness level. There are numerous ...

This workout series created by physical therapists will improve your quality of life a quarter hour at a time.