Don't the buttock muscles get weakened rather than overly tight by sitting a lot?? Thought it was the psoas that got tight?
This is the first anatomy article that I have read on yogajournal.com and I think its wonderful!! I'll be reading all the others.
I teach a style of Yoga called Bharat Thakur's Artistic Yoga. visit www.artisticyoga.com to find articles on "Butt-Strengthening"
I am a beginner in the practice of Hatha and Tantra yoga I have found that if you are truly seeking an enlightened journey you can focus on your breathing and only take the asana as far as you feel capable. I never once went on the negative thought of can't. I went on I can try and do eventualy. Meditation and breathing being my main focus to begin with. I am forever on a journey of enlightenment and I have found if you believe; your body mind and spirit will follow. I was taught by a Reiki Healer and I have been on this spiritual journey ever since
It would be helpful to provide modified poses for beginners. I am recovering from a pelvis imbalance and have tight hip abductors and probably tight gluts. Your poses are very aggressive.