Today, athletes use more structured interval training workouts and HIT (High-Intensity Training) to build speed and endurance. 1  This variation of interval training and speed work can be a simple or sophisticated routine, but the basics are still the same as the original fartlek training.
Annabella Avery Bella Thorne (born October 8, 1997) is an American actress and singer.
See all Bella Thorne's marriages, divorces, hookups, break ups, affairs, and dating relationships plus celebrity photos, latest Bella Thorne news, gossip, and biography. Bella Thorne is currently single. She has been in 11 celebrity relationships averaging less than one year each. She has never been married. Given Name: Annabella Avery Thorne. Age: 20 (10/8/1997) Occupation: Entertainment - Actress. Most Famous For: CeCe Jones of Shake It Up