[quote]Vicomte wrote:
I saw a thing on the science channel where a guy pressed a half-ton boulder off his chest before it crushed him and dragged him off a cliff. Apparently he generated so much force he tore muscles form bone.
It’s a very real phenomenon.[/quote]
I’ll chime in here. People always talk about how we only use 25% of our brains. Yup. We also only use about 25% of our kidneys, liver and pretty much anything else because we have extra capacity for survival.
In the case of muscles, most people can only activate about 25% of the motor units (why do you think all the top coaches keep harping on motor unit recruitment??) A good athlete will recruit more than that, maybe 30% - 35%. The athletes with the absolute most recruitment are top level gymnasts who come in at a whopping 50%. (They work up to it by doing isometrics, BTW, which gives them practice at turning on their muscles. Say, they aren’t all that big either…) Note that you can augment the size of the muscles in various ways, but cannot increase the number of muscle fibers. This is why you talk about hypertrophy (making something larger) rather than actual growth (= making more cells – tumors grow rather than undergo hypertrophy.)
A big adrenaline dump can up your recruitment. Now one more kewl fact is that people who get hit by lightning often have broken bones. Why? Because they got 100% recruitment. So yes you can get amped up and do something amazing then find you break things. Pavel Tsatsouline talks about this in some of his books (overpriced, over-hyped extended ads for his other stuff but when he puts something interesting in there, it really is interesting).
– jj