Unfortunately, most on-ramps to exercise are at an intensity too high for previously-sedentary people to find them pleasurable. If people go to a fitness class, or focus on running a particular distance at a particular speed, they’ll likely miss the pleasure zone entirely.
Refocusing on exercising only for one’s own individual pleasure, as slowly as one prefers, and only at intensities that are pleasurable, is more likely to motivate repeat and habitual exercising. At that point, the enjoyment of exercise pleasure can build on itself, motivating longer and longer intervals of experiencing the pleasure.
~ Perry
References
Body Pleasure