I always stretch before and after the work out. This time I din’t stretch after the excercise because something important came up and I had to finish the work out quickly.
I didn’t feel anything during the work out, it was after few hours that the pain started.
I don’t do heavy weight lifting. About the improper techniques, well I’ve been following this dvd for few years.
I think it has to do with not doing the cool down and stretching after the work out.
Oh and those weren’t bruises…those were my vains. lol