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Old 08-15-2015
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Default Very interesting read about muscle fiber makeup

Especially the part of the influence of muscle fiber type for the powerlifts. I quote

Powerlifters should train more like a bodybuilder

Quote:
Type I muscle fibers and Type II muscle fibers differ in several major ways. Type I muscle fibers are less fatiguable (making them great for endurance exercise) and take longer to reach maximal force when stimulated. Type II fibers, on the other hand, are more fatiguable but can reach maximal force much faster when stimulated (making them great for power-dependent exercise).

However, the maximal force production for a given area of Type I fibers is almost exactly the same as the maximal force production for a given area of Type II fibers. Type II fibers simply reach maximal force output sooner, making them better for power-dependent activities like sprinting or jumping. Powerlifting, though (contrary to what the name may lead you to believe), is NOT a power-dependent sport. Power output actually peaks around 30-60%1rm and is quite low with maximal loads.
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Type II fibers are more responsive to strength training and grow more than Type I fibers do, so fiber type distribution may limit long-term strength potential somewhat. However, thatís purely theoretical, because research has shown that elite powerlifters (average squat/deadlift of about 285kg/630lbs, and bench 170kg/375lbs) actually have about the same Type I/Type II fiber ratio as untrained people, which leads you to believe the sport itself didnít select for people with a fiber ratio skewed toward Type II. So it may be a concern for someone with an unusually high proportion of Type I fibers, but it wonít be for the vast majority of people.
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However, thatís a bit of a stretch for both squat and bench because the muscles are already contracting quite hard to control the weight while lowering it; for max loads, all your slow twitch fibers are probably recruited already (since theyíre the ones recruited first Ė Hennemanís Size Principle) before you reverse the weight, so regardless of fiber type breakdown, the additional fibers activated as you reverse the lifts are primarily fast twitch anyways.

It makes a lot of sense when one thinks about it but I never thought about it before. So slow fiber dominant sucks for Olympic weightlifting but is no real hindrance for powerlifting. Might explain why I never managed to clean more than about 50% of my best deadlift while one "ideally" should be closer to 70%.
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Old 08-22-2015
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Interesting read.
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Old 08-27-2015
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It sounds really good, too wonderful!
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