There are four FORMS of yoga and HATHA falls under the FORM of RAJA or Royal yoga.  It is the physical practice pulled from the Eight Limbs of Yoga as described in The Yoga Sutras of Patanjali. 

Here at Expansions we practice a therapeutic style of Hatha, meaning we're really sensitive to what's going on with your body and how we can apply the technology of yoga to help heal what ails you.  That basically means we move slowly and thoughtfully to make you stronger, more flexible and more aware in your body.