Exercise news from around the world.

* Johnny G, creator of Spinning, led 150 bikers in a ride to raise money for Challenge Aspen, a nonprofit organization that gives people with disabilities an opportunity to take part in recreational activities. This is the second year Spinning has participated with Challenge Aspen.

* The New York Health & Racquet Club (HRC) was recently chosen as the official practice site for the top 32 international women's tennis champions of the world, including Serena Williams, Arantxa Sanchez Vicario, Sandrine Testud, Conchita Martinez, Amanda Coetzer, Julie Halard-Decugis, Barbara Schett, Anke Huber, Nathalie Tauziat and Amelie Mauresmo. They prepared for the Chase Championships, held in November, at HRC's Village Tennis Courts.