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Authors
Author
Ian Jeffreys
Books
Strength and Conditioning for Sports Performance
Ian Jeffreys, Jeremy Moody
Développer la vitesse
Ian Jeffreys, Kévin Daumié, David Pellier
Strength and Conditioning for Sports Performance
Ian Jeffreys, Jeremy Moody
Soccer Speed
Ian Jeffreys, Richard G. Bate
Effective Coaching in Strength and Conditioning
Ian Jeffreys
Soccer Speed
Ian Jeffreys, Dick Bate, Richard Bate
Developing Speed
NSCA -National Strength & Conditioning Association, Ian Jeffreys
The Warm-Up
Ian Jeffreys