this should be done while letting go of all excess tension, the movements should be done slowly putting effort on the muscles in both directions
relaxation exercise is the opposite of 'pumping iron' exercises where shoret quick movements with resistance in 1 direction only are usual
remember most anxiety sufferers have too much tension in their muscles and bodies,so let go of this
its normal for the heartbeat to increase and become more apparent, accept this and ignore it, do not listen in to your heart or monitor it