Today's workout in the rotation was Low Impact Challenge.  I did X Train All Out Low Impact Hiit mix, Step and disc stopping at the stretch, 20 minutes, 123 calories, followed by Low Impact Challenge mix 3, all combos, blast, all combos, blast 40 minutes, 294 calories. I like that mix, it seems I get my HR up more with it.   I finished off with Chalean Extreme Dynamic Flow Yoga, 38 minutes, 124 calories.  Total time was 98 minutes and calories burned 541.  Tomorrow Low Impact Series Afterburn in on the schedule.  
Debbie, the rotation I have has me doing Mesocycle 1 week 2 Legs.  I should look at it.  I have to be careful with lunges. For some reason reverse lunges can sometimes make the knee that had the torn meniscus hurt.  
Roselyn. was that one of the Ab Circuits Hiit workouts.