For me it depends on the site and the participants. I change the exercise for one body part at a time over the course of year. As an example, in a boot camp situation I would change a partner row (two ropes tug of war style) to a TRX row. The next week I change another body part/muscle group exercise like a push up to a high tension tubing chest press one arm at a time (really engages the core as well as the chest). Each week one muscle/muscle group (or two opposing groups) get changed until I have changed all of the sets one time through. Then the process might start over or maybe we start a brand new routine and restart the one exercise change at a time. I try to make enough of the class new enough to notice, but not so new that the benefits of any one exercise are not given a chance to be gained.
I like to switch the workouts every day. This way they don’t get bored and makes it more fun and interesting. One day we do cirquit training, one day running, one day a timed workout (they perform a number of different exercises as fast and as safe as they can, then I post their time on the web site) and one day they do a lot of battling ropes exercises mixed with either kettlebell, core or jump rope exercises. The cirquits are different every time, the distance of the runs always changes and the timed workouts are also different every time.
We have yet to do the same workout twice
Our bootcamps are based on a 6 week on one week off rotation so we create variety and muscle confusion all the time.
Also, we live in a really hilly area so we take advantage of that!
The other night we did “repeats”.
1. Run to the cone(suicides) come back to cone one do 30 burpees
2. Run to the next cone come back to cone one do 60 burpees
3. Run to the 3rd cone, come back to cone one do 90 burpees
Next time around we switched exercises: for instance: moutain climbers, Russian Twists, Jump Squats etc..
No way, a good boot camp class coach/trainer should always keep you guessing! A major problem most people have with exercise is motivation. The job of a trainer is to keep workouts new, fun, and motivating. On top of that you always want to switch your focus(an example: strong core/cardio in one session, strong leg, chest in another), to keep the body from adapting and optimize results.