Fast twitch, Slow twitch fibres

The foundations for successful riding

Fast twitch, Slow twitch fibres

Postby mikesbytes » Tue Jan 04, 2011 9:25 pm

Having done a little research on fast twitch and slow twitch and found there to be a lot more to it than initially meets the eye.

Have a read of the following and discuss

http://en.wikipedia.org/wiki/Skeletal_muscle
A helmet saved my life
User avatar
mikesbytes
Super Mod
Super Mod
 
Posts: 14532
Joined: Thu Dec 01, 2005 10:42 pm
Location: Tempe, Sydney

by BNA » Tue Jan 04, 2011 10:40 pm

BNA
 

Re: Fast twitch, Slow twitch fibres

Postby sogood » Tue Jan 04, 2011 10:40 pm

You need both and fortunately have both types. :wink:
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
RK wrote:And that is Wikipedia - I can write my own definition.
User avatar
sogood
 
Posts: 16796
Joined: Thu Aug 31, 2006 7:31 am
Location: Sydney AU

Re: Fast twitch, Slow twitch fibres

Postby mikesbytes » Fri Jan 07, 2011 5:15 pm

However I understand you can change the quantities thru selective training
A helmet saved my life
User avatar
mikesbytes
Super Mod
Super Mod
 
Posts: 14532
Joined: Thu Dec 01, 2005 10:42 pm
Location: Tempe, Sydney

Re: Fast twitch, Slow twitch fibres

Postby Oxford » Fri Jan 07, 2011 7:09 pm

single speeding makes use of both muscle fibre types.
Life is not about waiting for the rain to pass.....it's about learning to dance (or ride) in the rain.
- anonymous
Oxford
 
Posts: 4506
Joined: Wed Dec 03, 2008 1:49 pm
Location: Brisbane

Re: Fast twitch, Slow twitch fibres

Postby sogood » Fri Jan 07, 2011 7:15 pm

I also understand that there's conflicting studies showing either the shift in % in very limited or no change at all. The genetic determinant is overwhelming. At the end of the day, we train to go faster and/or further, the biological adaptation will just happen in the background.
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
RK wrote:And that is Wikipedia - I can write my own definition.
User avatar
sogood
 
Posts: 16796
Joined: Thu Aug 31, 2006 7:31 am
Location: Sydney AU

Re: Fast twitch, Slow twitch fibres

Postby Alex Simmons/RST » Fri Jan 07, 2011 10:17 pm

Doing nothing (i.e. being exceptionally sedentary) and resulting atrophy will result in the proportion of fast twitch fibres increasing. But it's not a performance improvement methodology!

There can be some conversion of faster to slower twitch, at least faster twitch fibres taking on some properties of slower twitch fibre, but as sogood says, it's not a big percentage and fibre type proportions are basically genetically determined (IOW - you have to be born a sprinter). It is however something that does happen with large volumes of endurance training and is speculated that it is one way that gross metabolic efficiency might be improved over the course of an elite athlete's career.

IOW, train lots and improve.
User avatar
Alex Simmons/RST
Expert
 
Posts: 3250
Joined: Fri May 02, 2008 3:51 pm

Re: Fast twitch, Slow twitch fibres

Postby Alex Simmons/RST » Fri Jan 07, 2011 10:18 pm

Oxford wrote:single speeding makes use of both muscle fibre types.

pretty much all cycling does.
User avatar
Alex Simmons/RST
Expert
 
Posts: 3250
Joined: Fri May 02, 2008 3:51 pm

Re: Fast twitch, Slow twitch fibres

Postby toolonglegs » Fri Jan 07, 2011 10:24 pm

For example...sprint training.
Say I have a 1250w 5 sec...train hard for a year doing sprint efforts etc and get to 1400w...I will never get higher than that,have to be happy with a small % increase...in an actual race scenario the % will probably be even smaller anyway.I am not going to knock a 5% increase of course.But I was not born a sprinter so I am better off improving the things that I really can increase right?.
Not that I am riding...but what are the areas of biggest gains usually?....ftp then descending I suppose?.
Image
User avatar
toolonglegs
 
Posts: 14037
Joined: Fri Jun 29, 2007 7:49 pm
Location: Somewhere with padded walls and really big hills!

Re: Fast twitch, Slow twitch fibres

Postby Alex Simmons/RST » Sat Jan 08, 2011 9:38 pm

toolonglegs wrote:For example...sprint training.
Say I have a 1250w 5 sec...train hard for a year doing sprint efforts etc and get to 1400w...I will never get higher than that,have to be happy with a small % increase...in an actual race scenario the % will probably be even smaller anyway.I am not going to knock a 5% increase of course.But I was not born a sprinter so I am better off improving the things that I really can increase right?.
Not that I am riding...but what are the areas of biggest gains usually?....ftp then descending I suppose?.

There's always room to improve one's sprint. You are not aiming to be the best sprinter of the whole bunch. Just of those remaining in the race for the win (which could be just one rider). And sprinting is much more than the physiological element. Plenty of fast guys lose sprints to slower but craftier riders.
User avatar
Alex Simmons/RST
Expert
 
Posts: 3250
Joined: Fri May 02, 2008 3:51 pm

Re: Fast twitch, Slow twitch fibres

Postby foo on patrol » Sun Jan 09, 2011 7:52 am

^^ Very true! ^^ :idea: :mrgreen:
I don't suffer fools easily and so long as you have done your best,you should have no regrets.
Goal 6000km
Image
User avatar
foo on patrol
 
Posts: 4047
Joined: Sat Dec 19, 2009 10:12 am
Location: Sanstone Point QLD

Re: Fast twitch, Slow twitch fibres

Postby toolonglegs » Sun Jan 09, 2011 2:03 pm

Well said.
Image
User avatar
toolonglegs
 
Posts: 14037
Joined: Fri Jun 29, 2007 7:49 pm
Location: Somewhere with padded walls and really big hills!


Return to Training

Who is online

Users browsing this forum: No registered users



Support BNA
Click for online shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Cycling Express Cycling Express
Ebay Ebay AU
ProBikeKit ProBikeKit UK
Evans Cycles Evans Cycles UK
JensonUSA Jenson USA
JensonUSA Competitive Cyclist