Yeah definitely appreciate it, however the answer would be:
Because attitude produces motivation and without motivation it is impossible to reach the desired level of fitness.
Explanation: Attitude is a standard of procedure that leads to a certain behavior. It is the realization of an intention or purpose.
Whenever someone wants to achieve a goal, they should take action on the goal and look for ways to reach it. Attitude breeds determination, commitment, and motivation. Regarding physical fitness, attitude is essential, because it is through it that individuals have the motivation and desire to achieve their goals in relation to their body and the exercises performed.