"Prowler Base" (sled)
1. Load up a manageable weight.
2. Sprint 40m at 85% intensity.
3. Rest until breathing and heart rate slow down. (45 sec - 2 min)
4. Repeat 5-15 times.
Courtesy of "Death by Prowler" by Matt Reynolds and Stef Bradford (on Starting Strength).
30 Strict TTB AFSAP (As Few Sets As Possible). You can scale these by raising your straight legs only to waist-height (i.e., "hanging leg raises") or bending your knees and raising your knees to waist-height (i.e., "hanging knee raises").