[1] Univ Arkansas, Hlth Human Performance & Recreat Dept, Fayetteville, AR 72701 USA
[2] Univ Oklahoma, Hlth & Exercise Sci Dept, Norman, OK USA
[3] Miami Univ, Dept Kinesiol & Hlth, Oxford, OH USA
[4] Univ Oklahoma, Dept Pediat, Hlth Sci Ctr, Oklahoma City, OK USA
[5] Univ Southern Calif, Keck Sch Med, Los Angeles, CA USA
[6] Cherokee Nat, Epidemiol, Tahlequah, OK USA