18,99 €
This book will help you to achieve your full potential in roller derby and in life! Mental toughness training uses psychological principles to improve an athlete's performance. An athlete's performance is at least 60% psychological. Some experts say mental toughness skills factor in even more! The Mental Toughness Guide: Roller...
Direkt bei Thalia AT bestellenMarke | Touchladybirdlucky Studios |
EAN | 9780692330463 |
ISBN | 978-0-692-33046-3 |