I would definitely recommend going for calisthenic training with an emphasis on isometrics around young kids, rather than weights(equipment and prep time) or in

I would definitely recommend going for calisthenic training with an emphasis on isometrics around young kids, rather than weights(equipment and prep time) or intensive cardio(too much time-on-task). Holding a bridge, squat-and-reach, or a downward dog for 30 seconds while the kid crawls around is feasible, and a few rounds of that daily will do a huge amount of good.