More Premire News..
Showing will be Monday, December 12, 2005. Doors open at 6.30PM, show starts at 7.00PM. DVD runs at just over an hour! Looking forward to seeing past and future RAO racers and crew!
Dam the food, its all so good and makes me so slow. In an attempt to ward off the pounds, the day of the big feast I went out and kicked it for a few hours. I crank out some quick flat miles. I headed out from my parents place, following the river down to
Saturday, I got out for a ride of a more respectable length, doing a loop through Mt Angle, Silverton,
What is creatine? creatine is a molecule found inside muscle cells, in its active state creatine is bound to a phosphate molecule and is thus present in its active form inside muscles cells in the form of creatine phosphate.
When the muscle cells, do work, contracting, pumping ions, etc, muscle cells expend chemical energy in the form of ATP. To use ATP, the ATP gets broken into two molecules, ADP, a phosphate molecule, and in the process release energy. Each muscle cell has a very limited supply of available ATP and to continue to work past a second or so the ADP in the muscle needs to be “recycled”, rebind with a phosphate molecule and thus convert back to ATP.
There are a number of systems which allow for the recycling of ADP, creatine phosphate is one such system. Creatine phosphate works like a capacitor or battery for the cell, during moments of exceptionally high ATP demand. During anaerobic metabolism, creatine phosphate will bind in a one to one ratio with ADP to convert ADP back to ATP and release a creatine molecule. Later when there is excess ATP, ATP can combine again with the creatine to reenergize the creatine molecule and rebind a phosphate ion to it. The problem, or catch with the creatine energy system is that it is only capable of providing enough energy for a few seconds of exertion, and it takes hundreds of seconds to recharge.
Thus for the endurance athletes, who's primarily operating aerobically the creatine energy system goes entirely unused and further since the creatine energy system provides such a minute length of energy, the benefit from any increase due to additional creatine will also be minute. What is an extra 1 second of available energy? Where the cost, in terms of increased muscular weight due to the added creatine is always present leading to some research which shows endurance athletes perform poorer when subjected to creatine supplementation then subjects who didn't supplement with creatine.
This quarter, I've been taking courses in Statistics, Statics, and Anatomy. I'm finding them all fascinating. When my advisor told me I was going to be taking some Anatomy, I thought it would be mostly memorization, (the clavicle and the scapula connect at the acromion). Well, indeed the course has been very much that but it has also contained a very nice dose of basic physiology. I'm finding the physiology aspect particularly intriguing as it both explains and suggests things that I can do on the bike to kick it just a little faster.
First on the list of things from physiology I wanted to share was some inside info on isometric contractions. Isometric contractions are muscular contractions which involve no external movement of the appendages. When you plant your feet firmly and push against a wall you perform an isometric contraction, when you carry your groceries your arms perform isometric contractions; they don't move, but the muscles do contract. Well, during an isometric contraction your muscles obviously do perform work but since there is no external movement, the muscle forces get redirected entirely internally and pull against the tendons and other connective tissue. Here is the real kicker, when released, the loaded tension in the connective tissue, tendons etc, will accelerate the limbs faster then what is normally be experienced under a muscular contractions. So, next time your on the TT starting line go ahead and load the legs.
So, in the last week, I've been feeling a bit behind on my training. Friday the rain bike and I went out for a 2 hr around the staple Decker road route. On my way back I stopped by the cycling team’s presidents house, yes it is white, dropping off a check for some parts for my new TT bike. It hurt to write the check. But come NWTTS season, the bike will be well worth it. Then it was back to
Saturday, there wasn't too much in the way of riding as it was dad's weekend here at OSU.
Then on Sunday, I snuck out for around a 2hr ride, went to the lab for a bit of lab work, then it was into the weight room for some core strengthening. A walk home and a fruit smoothie later, I was on the power cranks & computrainer for one final hour. The computrainer session really hurt. And then it was dinner time, spaghetti with a little Hammer Whey in my mom’s homemade red sauce.
Labels: Training
Labels: Training