Five-time Classic Physique Mr. Olympia winner Chris Bumstead recently visited Arizona and trained at bodybuilding coach Justin King’s gym. The reigning King of Classic Physique trained legs with King, but unlike other days, the trainer put CBum through a grueling leg workout with two training sessions a day. CBum’s trainer for the day explained why they trained legs twice a day.

No matter the training program you follow, leg days are the toughest. Since leg muscles are some of the biggest muscle groups, training and recovery become taxing but have immense benefits, including boosted testosterone levels. However, the champion had been ignoring leg days for a while, so he asked Justin King to help him train his legs.

“I was trying not to be a little skinny b***ch today,” said the bodybuilding icon. However, he wasn’t ready for King’s “two a day,” suggestion. “I was like what the f**k? I don’t need two a day!” exclaimed Chris Bumstead. However, the personal trainer told the champion bodybuilder why he wanted him to go through two leg workouts in one day,

The Built Better gym founder explained that Chris Bumstead would follow two different training protocols. “In the morning he’s doing more of a neural type of training,” said the bodybuilding coach. He explained that this would contain some unconventional variation and train CBum’s fast twitch muscles. The second workout would commence four to six hours after the first session.

Coach King explained the second one would be distinctly different and focus more on “metabolism.” Instead of the strength-based approach of the morning workout, the second one focused more on the “burn” and the pump. King explained that the reason for doing the second volume-based workout after the strength one was that it would cause more muscle damage, which means better hypertrophy. Thankfully, Chris Bumstead is no stranger to special training.

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Chris Bumstead follows FST-7

The Classic Physique champion works with over 20-time Olympia-winning coach Hany Rambod. Under Rambod, the champion has already won two Classic physique titles. Interestingly, Rambod’s FST-7 workout shares similarities with Justin King’s “two a day,” leg day. However, Chris Bumstead doesn’t train each body part twice a day following FST-7.

The Pro Creator designed FST-7 to stretch the fascia of the body. Rambod believes muscle-building ability is limited by how “pliable” your fascia is. So, after doing three to four sets of high-intensity training, Chris Bumstead shifts to volume training for seven consecutive sets. Rambod believes that the volume training at the end of the strength training stretches the fascia, improves the pump, and results in better hypertrophy.

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So, while Chirs Bumstead might have freaked out hearing about two leg works in one day, he is accustomed to similar training under Hany Rambod.