The seated straddle raise will work the whole front of your core and even help you work up to a handstand from the comfort of the floor. Staying up in a handstand is a challenge on its own, but ...

Keeping hips and knees at a 90-degree angle and using back support may help alleviate lower back pain. It is best to avoid slumped positions and sitting cross-legged for long periods. A person may be ...