livescience.com— Most regular runners can tell you when they reach that perfect equilibrium of speed and comfort. The legs are loose, the heart is pumping and it feels like you could run at this pace forever.
Mar 29, 2009View in Crawl 4
Not only that, but that assumption is counter to the laws of physics. Your body uses a certain amount of energy just to stay alive (which favors going fast), and the power needed to overcome air resistance is proportional to speed cubed -- so double your speed, power needed goes up by a factor of 8, and total energy needed to go a given distance goes up by a factor of 4. So that favors going slow. Granted, for running, air resistance is not a huge factor (like it is for cycling) but it's still a factor. And there's other factors as well.I don't think many really made that assumption -- but it would appear that the author was one the few who did.
That's the amount of energy to get you up to that speed. Once you're at that speed it's a matter of overcoming wind resistance and friction. Wind resistance goes up as the cube of you're speed.
I'm a runner. Usually I run two miles or so to warm up, then do anywhere from four to ten more. 7:13 feels very relaxed once you are in good shape and aren't tired from a previous harder workout.True story: today on my warm-up I wasn't paying enough attention and ran straight into a fire hydrant. One of the bolts punched a small hole all the way down to my shin bone. 10 stitches for a moment of carelessness downtown. It really sucked. Nothing's broken though and I can start running again whenever I feel up to it, so that's good at least.
7:13 isn't that fast. I was able to run 2 miles in 14 minutes after going to the gym for the first time in years. I'm not trying to brag, as I know some people are built better for it than others; just that especially for trained athletes, 7:13 is not fast.
optimal distance running pace usually entails 90 right foot strikes in a minute. 30 strikes in 20 sec. Keeps a fast cadence, quick pacing, and naturally lengthens the stride.
dougmcMar 30, 2009
Not only that, but that assumption is counter to the laws of physics. Your body uses a certain amount of energy just to stay alive (which favors going fast), and the power needed to overcome air resistance is proportional to speed cubed -- so double your speed, power needed goes up by a factor of 8, and total energy needed to go a given distance goes up by a factor of 4. So that favors going slow. Granted, for running, air resistance is not a huge factor (like it is for cycling) but it's still a factor. And there's other factors as well.I don't think many really made that assumption -- but it would appear that the author was one the few who did.
1hrsleepMar 30, 2009
I stopped running and I took up cycling, squash, and frisbee (well, an aerobie) instead.
garyi113Mar 30, 2009
Wind resistance plays a big part in running. Ask any runner if they'd rather run with the wind or against it.
garyi113Mar 30, 2009
That's the amount of energy to get you up to that speed. Once you're at that speed it's a matter of overcoming wind resistance and friction. Wind resistance goes up as the cube of you're speed.
v3nomMar 31, 2009
I'm a runner. Usually I run two miles or so to warm up, then do anywhere from four to ten more. 7:13 feels very relaxed once you are in good shape and aren't tired from a previous harder workout.True story: today on my warm-up I wasn't paying enough attention and ran straight into a fire hydrant. One of the bolts punched a small hole all the way down to my shin bone. 10 stitches for a moment of carelessness downtown. It really sucked. Nothing's broken though and I can start running again whenever I feel up to it, so that's good at least.
neillawsonMar 31, 2009
omg fatty lol
Closed AccountMar 31, 2009
7:13 isn't that fast. I was able to run 2 miles in 14 minutes after going to the gym for the first time in years. I'm not trying to brag, as I know some people are built better for it than others; just that especially for trained athletes, 7:13 is not fast.
julian88888888Mar 31, 2009
train smarter
mitthumanApr 2, 2009
optimal distance running pace usually entails 90 right foot strikes in a minute. 30 strikes in 20 sec. Keeps a fast cadence, quick pacing, and naturally lengthens the stride.
jaquline09Jul 30, 2009
VO2max and Wmax are the two frequently used measures of athletic endurance ability. The changes in body mass may likewise show changes in performance outcome. An efficient cyclist will use maximum oxygen available in the atmosphere and deliver maximum power. Simultaneously a measure of peak aerobic power (Wmax) is taken.<a class="user" href="http://www.cyclingmind.com/measuring-athletic-endurance.html">http://www.cyclingmind.com/measuring-athletic-endu ...</a>