Putting your hands or feet on a Swiss ball during a plank exercise is brilliantly effective ; as well as trying to remain rigid, you’ll be fighting the tiny movements of the ball. Same if you balance your feet on the ball and do press-ups.
Read morePutting your hands or feet on a Swiss ball during a plank exercise is brilliantly effective ; as well as trying to remain rigid, you’ll be fighting the tiny movements of the ball. Same if you balance your feet on the ball and do press-ups.
Read more