
There are lots of equipment-free exercises you can use to train your core, like the simple plank and dead bug.
But it you want to increase the challenge to your muscles—without overtaxing them—you could add a little resistance.

There are lots of equipment-free exercises you can use to train your core, like the simple plank and dead bug.
But it you want to increase the challenge to your muscles—without overtaxing them—you could add a little resistance.