Ian Jeffreys is a professor of strength and conditioning at the University of South Wales. Jeffreys was also a founding member of the UKSCA and has been a member of the the National Strength and Conditioning Association (NSCA) since 1989. He has authored numerous strength and conditioning articles that have featured in several leading international journals. Jeffreys has also authored seven books and he contributed towards a chapter on warm-ups and stretching for NSCA’s Essentials of Strength Training and Conditioning.
Ian Jeffreys is one of the best educators and practitioners I know. His book, The Warm-Up, is both stimulating and educational. Des Ryan--Head of Sport Medicine and Athletic Development for Arsenal Academy For decades the warm-up has been the greatest physical development opportunity we haven't tapped--until now. Written by one of the most influential thinkers in human performance, The Warm-Up will change the way you think about the first 15 minutes of training forever. Nick Winkelman, PhD--Head of Athletic Performance and Science for Irish Rugby Football Union