If you aren't going to get a muscle biopsy, I just tend to make this judgement against people who think they are "fast:"
If you aren't overweight, and can't run 11 flat in a 100m after a few weeks of basic conditioning, you aren't a 100 type.
Just because you are the fastest kid in the schoolyard, doesn't mean you are faster than plenty of talented milers, or 5k runners, for that matter. Truly fast people are very rare.
Not true a muscle analysis of Colin Jackson(former 100mHH world record holder)showed 71 percent fast twitch muscle, bolt or other 100m sprinters are likely even more fast twitch.
Whichever distances you are better at
Hahaha when you're a kid playing tag. Are you really good or suck at it? This is known before people are 5 or 6 year olds. You're either fast or not lol. Op is definitely not.
HITHEREYOU wrote:
jsdkfjksd wrote:
Take a genetics test like 23andme, it will tell you which genes you have. I personally have 1 of each of fast twitch gene and endurance gene.
Fast twitch genes? Fast twitch is the muscle fibre type. The gene involved in determining such types is ACTN3.
The gene for Myostatin (MSTN) has a major influence on proportions of fast and slow twitch muscle fiber.
You could have both types of runners do 30 minutes out and back for a total of 60 minutes. The faster twitch runner will be looking at their watch about 12-15 minutes into it wondering when 30 minutes will be up. The endurance runner won't look at their watch until about 25 minutes into.
Darwin, C. wrote:
I don't know about this one.
1st - I'm built like a bodybuilder.
2nd I can sprint like a beast for 100 meters.
I have great endurance but I'm slow A.F.
I never get sore. I run 7 days a week. But I'm slow A.F.
Everything here confirms you are very much on the slow-twitch end.
1) Body-type has more to do with genetics and nutrition / calorie surplus/deficit. There are lighter sprinters (LeMaitre, Wariner, van Niekerk) and "heavy" distance runners (Mottram/Solinsky/True/Snell etc.). Also, jumpers are incredibly fast-twitch but not necessarily big in size, since they need to overcome their weight when jumping and power-to-weight ratio becomes very important.
2) Slow-twitch people often vastly overestimate their ability to sprint. Often, a talented slow-twitch runner who happens to be the fastest runner in his school class is just still the fastest in sprints because other kids are fat/sedentary/non-athletic/don't care about sprinting all-out etc.
Farah probably thought he is pretty quick after his massive kicks in the 5k/10k races, but in an actual 100m race out of the blocks he got smoked, finishing 3rd in 12.91 and getting wrecked by a jumper and boxer.
3) Great endurance is almost impossible to achieve for someone who is primarily FT. Bolt would struggle heavily during a 5k race, and suffer hard. Imagine him in a marathon. He probably couldn't even walk one, even if he tried.
4) ST runners can handle much harder training, more volume, bigger sessions, and then next day are recovered. They can do fast easy runs, or medium long runs and still get back next day. FT runners need to be extremely careful not to overdo it - they get sore all time, and need much more recovery. Easy to push the pace as FT runner training for middle-distance events on easy/long runs and overdo it, burn all glycogen and then need several days to get back up again.