This challenge is guaranteed to be exactly that...CHALLENGING! We don't expect most of you to finish it on the first attempt but we encourage you to regularly work on it until you do! For those of you who do it on the first try, you may want to look into training for the plank world record of 1:20:07 (hrs:mins:secs) and give the great George Hood a run for his money!
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.