> If you've had serious knee injury, turning like in the first video is a guaranteed pain for the rest of your day in your knee. It puts compression and torsion

> If you've had serious knee injury, turning like in the first video is a guaranteed pain for the rest of your day in your knee. It puts compression and torsion in your knee at the same time, Yes, yes, totally agree… > like grinding up herbs on a cooking show. Wut???