Question how do i increase my 40 time to at least a 4'5 or 4'6
Answer Hi Rudy
I could give you some good workouts with running and weight training,but i'm a distance coach and i think you should look to google for some speed coaches.I googled speed coaching and a lot came up.Try others with a specific purpose for the 40.I figure it is for football.Any other questions just get in touch.