DES MOINES, Iowa (AP) – Lolo Jones returned from a brief stint as a bobsledder with a gold medal and more strength than ever. Jones’s power burst has led her to adopt a new starting technique – one she hopes can rejuvenate her hurdling career.

Jones helped the U.S. bobsled team win a gold medal at the world championships in Switzerland in January. She also discovered she was setting personal bests in training after pushing around a 400-pound sled for months.   Such power has inspired Jones to try a new seven-step starting technique, which shaves off a step leading to the first hurdle by using longer strides, at this weekend’s Drake Relays.

Jones, who grew up in Des Moines, will run the 100-meter hurdles final Saturday against London Olympics rivals and medalists Dawn Harper and Kellie Wells.