If you have a stability ball, and a core that you want toned, this workout is all you! This workout may feel challenging if you are new to using a stability ball, but stick with it, the stability ball is one of the best pieces of equipment to develop strong abs.
Wykonaj ten trening z najlepszym sprzętem do ćwiczeń. Zalecamy używanie monitora tętna na pasku do klatki piersiowej Bluetooth lub smartwatcha do optymalizacji treningu i śledzenia wyników.
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