Again from the Journal:
It was July 2010, my first week of CrossFit. The affiliate had opened a month prior, and I was the only person in the noon class. After I warmed up, the coach brought out a 20-inch wooden box and told me to jump up on it.
I looked at the rough edges of the homemade structure, eyeing the sharp corners, the screws embedded in plywood. Jumping on top seemed like a terrible idea. But my coach was looking at me expectantly, so I bent my knees and made a half-hearted jump, rising a few inches off the floor. I was nowhere close to the top of the box.
I kept trying, but each time I got ready to jump I’d look at the sharp-edged box and hesitate. I was terrified of what might happen if I really tried.
Finally, my coach pointed to a tractor tire in the corner of the gym.
“Jump on that,” he said.
“How tall is it?” I asked.
“Just jump on it,” he said.
pull ups negatives chest to bar – either with band or with partner. 4 x 4
4 rounds for time of:
115-lb. overhead squats, 20 reps
30-inch box jumps, 20 reps