Think of your core like the foundation of a house. If it's jacked up, eventually, the rest of the house will be too. If you've got a stability ball, use it for this workout. If not, no sweat, you can go through the motions just as well without it. Let's pour the cement and solidify your core.
Doe deze workout met de beste trainingsapparatuur. We raden aan om een bluetooth borstband hartslagmonitor of een smartwatch te gebruiken voor meer trainingsoptimalisatie & prestatietracking.