Hi melagras,
The 48-hour rule is really meant for intense strength training routines with heavy weights where you're lifting 80%+ of your one-rep-max. In a bootcamp workout the weights used are far less than 80% of your one-rep-max and the training volume (sets x reps) isn't usually enough to cause enough muscle damage that would usually require a 48-hour rest. As with any form of exercise, the amount of rest recovery you will need between workouts will depend on the intensity of the workout and your level of fitness as well as your fitness goals. Just do a search on our cathe.com site and you can find tons of articles related to this subject.