EMOM 39:
1min Row
1min SkiErg
1min Assault Bike
1min Rest

Set a single number of calories and complete that amount of work each minute - every minute.
Set a target number of calories and complete that number of calories each minute through the entire workout (39 minutes not counting the last 1-minute rest). A common target for Rx-level athletes is 20 calories per minute for each station.

Score is the total number of calories completed (for example, if athlete does 20 calories per minute, they will complete 600 total calories for the entire workout).

Scaling:
Reduce the number of calories per minute to a number which will be challenging to hold each minute for the entire workout.