A muscle fiber that has slow contractile characteristics. Slow twitch muscles have higher oxygen capacities that fast twitch muscles and are commonly used for endurance exercises or activities, i.e. running.

The weight training classes at our health clubs are designed to improve strength in both slow twitch muscle fiber and fast twitch muscle fiber, to help you achieve both power and endurance. To learn more, be sure to enter your zipcode below and see if we have health clubs in your area.