Haciendo testeos con los mejores atletas

Tyson Gay and Jeremy Wariner

Tyson Gay and Jeremy Wariner demonstrate their different start styles at the Adidas Running Camp in Carson, California.

Running with Haile in Santa Monica

Haile Gebrselassie takes reporters for a run in Santa Monica, California, as a lead-in to the Adidas Running Camp.

Haile Gebrselassie Treadmill Run

Marathon world record holder Haile Gebrselassie demonstrates the sweat-wicking properties of his Adidas singlet by running at 4-minutes-per-mile pace on a treadmill at the Adidas Running Camp in Carson, California.

Gebrselassie Cotton Shirt Sweat Test

At the Adidas Running Camp in Carson, California, Haile Gebrselassie warms up on a treadmill at 4:36 per mile, with a heat sensor showing his core body temperature heating up under a cotton T-shirt.

Tyson Gay Start Drill

Tyson Gay demonstrates his form out of the blocks at the Adidas Running Camp in Carson, California.

Adidas Running Camp Drills

Sprinters Allyson Felix, Veronica Campbell-Brown and Christine Ohuruogu doing some drills at the Adidas Running Camp in Carson, California.