Mikeh33 wrote:
[quote]LateRunnerPhil wrote:
Excellent Tinman post on this topic on his forums:
"You can fine-tune what you have and improve speed by about 10%. Compare that to strength and endurance: 300% and 2000%.[\quote]
This makes no sense to me. If true, it would mean that Usain Bolt was a 10.5 in the 100m before ever having a track practice, or would have been if he’d decided to run a gas station in Jamaica instead of running. Yet that is clearly not true.
That's what he could do tho, roughly.
2001 21.73 +0.6 Debrecen (HUN) 14 JUL 2001
He ran that as 15-year old kid. That's his oldest, official race time. Growing alone would make him faster than when he was 15. If he just started at 19, he could probably run 10.50 without training. His progression (he was a 200m runner long before a 100m runner):
2016 19.78 -0.3 Estádio Olímpico, Rio de Janeiro (BRA) 17 AUG 2016
2015 19.55 -0.1 National Stadium, Beijing (CHN) 27 AUG 2015
2013 19.66 0.0 Luzhniki, Moskva (RUS) 17 AUG 2013
2012 19.32 +0.4 Olympic Stadium, London (GBR) 09 AUG 2012
2011 19.40 +0.8 DS, Daegu (KOR) 03 SEP 2011
2010 19.56 -0.8 Kingston (JAM) 01 MAY 2010
2009 19.19 -0.3 Olympiastadion, Berlin (GER) 20 AUG 2009
2008 19.30 -0.9 National Stadium, Beijing (CHN) 20 AUG 2008
2007 19.75 +0.2 Kingston (JAM) 24 JUN 2007
2006 19.88 +0.4 Pontaise, Lausanne (SUI) 11 JUL 2006
2005 19.99 +1.8 Crystal Palace, London (GBR) 22 JUL 2005
2004 19.93 +1.4 Hamilton (BER) 11 APR 2004
2003 20.13 0.0 Bridgetown (BAR) 20 JUL 2003
2002 20.58 +1.4 National Stadium, Kingston (JAM) 18 JUL 2002
2001 21.73 +0.6 Debrecen (HUN) 14 JUL 2001
Sounds like roughly 10% to me? Now I can show you some distance runners, and some might start with 23, 24 min 5k's and get down to the 13 min range (for example, Reed Fischer Tinman Elite). A 10% improvement would have only made them 21 min 5k guys.
You can ask some of the few real sprinters here on LRC, and they will all let you know how fast they were innately without any training. Not many people have a lot of % of fast-twitch fibers AND good neuromuscular coordination and a fluid, fast stride. There is a lot of natural talent in sprinting, and it can't be improved much in absolute/relative time gains.
If a distance runner considers adding a lot of sprinting at the cost of tempo runs or CV workouts, to get his 100m fly speed to 12.0 instead of 12.5 he might be wasting his time if he is only running say a 17 or 18 min 5k and could easily be a few minutes faster still.