I am almost 69 , no weights, no fast twitch muscles ,cant start out of blocks, afraid of injury, cant run over 140 m hard without tieing up, 5 9 168, roll of flab around tummy, arms as thin as Muna Lee, no chest other than man tits- have RUN 11.2 22.3, 49.6 [ 48 YEARS AGO ]-- HELP