HANDSTAND CHALLENGE PART 4! Time to get "Stacked"! Welcome to the fourth installment of the Handstand Challenge. You may have noticed that we are using two progressive strategies to help you achieve the full #handstand. One strategy is to accumulate training time during that weeks progression. When building isometric endurance in a high skill exercise like the Handstand, we have to look at the over-all volume of time per day that you're practicing. The goal for now is to accumulate at least 15 m