When you sit incorrectly, you are likely to settle into the C position (slouching, slumped, flexed) with the accompanying stress to the parts of your back. (C-Position) For many of us, the sitting ...
The classic sit-up is a workout staple. Whether you've become all too familiar with the movement in your weekend HIIT class or eked out those last few reps while following a home workout video, you've ...