We all know that working out can alter your physical appearance, but did you know that it can also alter your DNA?
A recent study published in the March 2012 issue of Cell Metabolism shows that high intensity exercise can change the chemical tagging of your DNA, activating genes responsible for burning lipids and glucose. In the study, researchers examined 14 participants before and after they rode to exhaustion on an exercise bike. The scientists then took thigh-muscle tissue samples of the riders and noticed that when participants worked out at high intensity (80% of their maximum aerobic capacity) there was a diminished presence of chemicals known as methyl groups. The disappearance of these methyl groups allowed other proteins – specifically proteins that support the metabolism of sugar and fat – to show themselves. The appearance of these proteins basically tells your body to go into fat-burning mode. However, when the participants exercised at low-intensity (40% of their maximum aerobic capacity), scientists detected more methyl than when they rode at high capacity. Continue reading Study Shows High-Intensity Exercise Can Alter DNA
The starting gun isn’t the only measure of time in this year’s Triple Crown of Running Series taking place this season around Colorado. Chip Timing, a form of racing timing systems using RFID, will keep time for each athlete in the competition. 
If you’ve watched a mountain stage of the Tour de France you’ve probably seen David Mayer, but then again it could be anyone inside that water bottle costume. While Mayer is owner and designer of the Clean Bottle – the water bottle that unscrews from the bottom as well as top for better cleaning— he still actually “suits up” and runs along cyclists dressed as large bottle.
Get your running gear ready. Srava has a new running app, and has partnered with GU Energy Labs to create a challenge for spring. Between March 9 and April 9 there is but one goal. Run. The GU 100,000 Mile Challenge encourages participants to run as many miles as they can in 31 days. 
The Jabra Sport is the first Bluetooth headset to unshackle runners from the constraints of their wired headphones. But can Jabra – a company who’s known for making Bluetooth headsets for the home and office – make a smooth transition into the sports world? In a word; yes. The Jabra Sport is comfortable, reliable, and as rugged as any other pair of sports headphones we’ve seen. It’s not perfect, but it’s a solid first attempt at a wireless headset for runners.
While not exactly brand new, this week Sennheiser let it be known that ultrarunner Karl Meltzer tones up and tunes out with the Sennheiser/adidas PMX 680 Sport headphones. There are a lot of audio choices out there, but Sennheiser has a point. If Meltzer, who regularly runs 100-mile ultra-marathons, uses the headphones then they probably are something the rest of us might consider.