Kathryn Chigwidden and Kevin Whitford are co-directors of PhysioXtra.

Kathryn has a Bachelor of Applied Science in Physiotherapy (1986) and a masters of Applied Science in Manipulative Physiotherapy (1994). Kathryn has extensive experience in sports and musculoskeletal physiotherapy. She is head physiotherapist for the Adelaide Thunderbirds Netball Club. In 2004 Kathryn won the Telstra Business Women's award in the Westpac Group Business Owner Category.

Kevin has a Bachelor of Applied Science in Physiotherapy, a Masters of Applied Science in Manipulative Physiotherapy (1986) and a Graduate Diploma in Sports Physiotherapy (1985).

Kevin has been the head physiotherapist for the Adelaide Crows since 1991 and has over 20 years experience in sports and musculosketal physiotherapy.