If it weren't for yoga I could not run how I am running now.
The improvement in my hips, quads, glutes and hamstrings has been so marked the only thing I can compare it to is when you see someone tipping 25 stone and they go on a diet and lose a stone in a matter of 10 days.
When the baseline is so low it's easy improvements. Yet yoga is hard. It's tough on the whole body and leaves me spent. Half way through a class I'm ready for sleep.