I'm trying to figure out why it takes so long for my legs, specifically my thigh muscles to loosen up during a ride. Yesterday I was half way through a 23 mile ride before my legs felt comfortable. During the week, exercising on a stationary bicycle for an hour off the seat, the first half hour is tough but after that my legs loosen up. Is there a way to get loose quickly? This happens almost all the time I ride or exercise.