Frank Zane trains calves.Frank Zane explains his training and methodology behind his calve training in participation for the 1976 Mr Olympia.Source: Muscle and Fitness (Issue Apr 1977) Page #34 - Muscle & Fitness (Issue Apr 1977) Page #35 - Muscle & Fitness (Issue Apr 1977) Page #36 - Muscle & Fitness (Issue Apr 1977) Page #37 - Muscle & Fitness (Issue Apr 1977) Page #38 - Muscle & Fitness (Issue Apr 1977) Page #39 - Muscle & Fitness (Issue Apr 1977) Page #102 - Muscle & Fitness (Issue Apr 1977)