thanks melagras,i'll give them ago.I use arnica bath oil but wondered if a back support or any supplements would protect my joints.Helene very kindly recommened some dvds that are low impact ,just wondered if there any i should stay clear off.I have the HIIT workouts and wondered which others would compliment this to get an total body workout.I still would prefer low impact but high intensity if possible.thanks for your advice,mel