%0 Journal Article %T Using a Multidimensional Motivation’s Scale during Effort to Understand How Motivation Evolves with Intensity and Fatigue %A Bertrand Baron %A Alain Groslambert %A Frederic Grappe %J Advances in Physical Education %P 372-388 %@ 2164-0408 %D 2022 %I Scientific Research Publishing %R 10.4236/ape.2022.124028 %X Motivation is an important factor in getting athletes to reach their maximal potential, but no questionnaire or scale to observe motivation during exercise has been developed. Objective: The first aim of this study was to test the validity and the reliability of a new French Multidimensional Motivation Scale during Effort (MMSE) constructed to determine Intrinsic Motivation (IM), External Regulation (ExtR), Introjected Regulation (IntroR), Identified Regulation (IdentR), Integrated Regulation (IntegR) and Amotivation (Am). The second aim was to use it during intermittent exercises to understand how motivation evolves with intensity and fatigue. Methods: A hundred and four trained athletes answered the French version of BREQ-3 and French MMSE before the protocol. Then, they performed a running test-retest (Test 1 and Test 2) around one loop (770 m) at level 4 of the CR10 Borg scale. Then, they were asked to perform five loops at the intensity of effort 2, 4, 6, 8 and 10 using the same scale (Test 3). Finally, 28 of these athletes were asked to perform more series of 20 squat jumps without charge until exhaustion (Test 4).