1. Department of Human Evolutionary Biology; Harvard University; Cambridge Massachusetts
2. Medical Physiology Department, School of Medicine; Moi University; Eldoret Kenya
3. Department of Statistics and Computer Science; Moi University; Eldoret Kenya
4. Department of Orthopedics and Rehabilitation, School of Medicine; Moi University; Eldoret Kenya
5. Centre for Sport and Exercise Science and Medicine; University of Brighton; Brighton United Kingdom