The common misconception of yin yoga is that it stretches the muscles when in fact its primary purpose is to stretch the fascia (connective tissue) which may start to form adhesions over time, thereby causing the “tight” feeling.
Yin poses are typically held for 2-3 minutes and my recommendation is to start the pose at about 50-60% of your maximum effort and then gradually move into the full pose throughout the 2-3 minutes. Holding a pose for 2-3 minutes, can feel like 2-3 years so I strongly suggest this approach to yin poses. While everyone can benefit from incorporating a yin practice into their life, I highly recommend it to athletes and those who (for the most part) are in a fixed position for most of their day (i.e. professional sitters!).
Interested in practicing? Check out the two workshops being hosted realted to Yin Yoga...