No equipment necessary. Bird dogs, crunches, and hip extensions are all to be done after/while doing the "drawing in maneuver" which is to exhale, and clench the abs as if you are trying to draw your bellybutton in toward your spine.
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.