Just move - you will feel better and be a better parent.
I did a few unorthodox workouts over the past few weeks, and what I realized was you have to change your workout routines in order to really benefit your body. Doing movements you wouldn’t normally do will make you feel better and increase circulation. You don’t even have to do crazy stuff - just natural things you might do while having fun. For example:
Rollerskating - not usually something I do, but it was a fun way to get the heart rate going from both the movement and from the “joyful fear” of trying not to fall. Even this “joyful fear” is a feeling you don’t experience everyday, but boosts your mood. You also feel it in your legs since you’re balancing yourself in ways and activating muscle groups you didn’t know you had.
Throwing a ball back and forth - playing catch with my son on an unlevel backyard with dips and hills is more fun and challenging than you might think. Even throwing a ball crossbody where you are running in one direction to catch the ball and then throw in the opposite direction clicked something in my back and loosened me up.
Frisbee - playing with my daughter was fun, and it allows you to jump, stretch, run, and also turn in ways that you wouldn’t do in a gym with weights or on a treadmill. Add the mind complexity of trying to judge where the frisbee is going and you get even more unorthodoxy into the mix.
The best part about all these activities is there’s more than one person involved, and you get more spontaneity while working out and having fun with your family. Dodging people while skating, fielding bad throws by running and trying to catch, and poor frisbee flings leading to even more running and jumping adds that extra organic spice.
If you’re tired, the solution is to move. Just…move.