Great stuff to ponder on your next run. A wrap up of this week’s articles on exercise science as tweeted by Amby Burfoot, Editor at Large of Runner’s World Magazine.
You can follow Amby’s tweets at http://twitter.com/exerscience and his Runner’s World blogs at http://peakperformance.runnersworld.com and http://footloose.runnersworld.com.

Doh science? Running a 100-mile race in Alaskan cold is stressful. http://bit.ly/bBkaKv

Low dose creatine supplements for 6 weeks increases high-intensity muscle endurance, not body weight. http://bit.ly/cHhlst

Exercise is excellent way to maintain muscle while you lose weight through calorie reduction. http://bit.ly/akGA2S

How many calories burned by an extra pound of muscle? About 4/day says Powerbar expert. http://bit.ly/9rLaV9

Yesterday’s big topic in running was Dathan Ritzenhein’s new running form. I gathered lots of links and comments here. http://bit.ly/9Vx0OZ

Some new equations for Max Heart Rate. They’re different for older subjects than for younger age group. http://bit.ly/cAyoKO

Topical NSAIDS might be good option for local muscle pain. At least they lack systemic effects of ingested NSAIDS. http://bit.ly/cKgzMK

At “Science of Running,” Steve Magness gives his take on genes vs 10,000 hours of practice. http://bit.ly/dpz2LJ

For improved lactate threshold, two interval workouts a week beats one. http://bit.ly/d9vnix

Amino acid supplements boost “anabolic hormone profile,” good for muscle building and recovery. http://bit.ly/9KYT1j

Exercise good for depression, but many depressed have low fitness. So exercise prescriptions should be very moderate. http://bit.ly/cLw3kY

Elite endurance athletes have lower white blood cell counts. Appears “adaptive response, not underlying pathology.” http://bit.ly/aBTmzN

NY Times reviews Army studies finding no link between foot types, conventional shoe selection methods and injuries. http://nyti.ms/c0KFby

Antioxidants don’t diminish training effect. (Is tide turning on this question?) http://bit.ly/92p9Jx Prev neg result. http://bit.ly/aTxMBS

“Systematic review” finds “limited evidence” (glass half full?) that orthotics decrease knee pains (PFPS). PT can help. http://bit.ly/bDE8Uu

15 minutes of stretching loweres “torque production” of plantar flexor muscles before exercise. http://bit.ly/bJNyCX

Creatine (28 days) does not improve sprint at end of endurance cycle test. (Does a few interesting things, though.) http://bit.ly/9VHQ3w

NY Times explores “rinse and spit” phenomenon. Sports drinks improve performance even if you don’t swallow. http://nyti.ms/blsH7n

Overtraining linked to rise in “proinflammatory cytokines.” Signs: “depressed mood, sleep disturbances, and stress.” http://bit.ly/9YYVVW

Surprising result? Unlike male Ironman triathletes, females don’t lose significant body weight over the 10-15 hrs. http://bit.ly/dhNnlG

Post-workout cocoa drink decreased subsequent muscle soreness but didn’t change muscle metabolic markers. http://bit.ly/ah41rI

Dogs aren’t just good for adult fitness walkers. They benefit kids in the family too. http://bit.ly/aaXNoW

Cycling in city still a healthy idea, even taking into account air pollution and traffic-safety risks. http://bit.ly/a2UOqC

Another study exploring genetic link to certain soft-tissue injuries – http://bit.ly/9AvtaF . Previous one here – http://bit.ly/beSIa2

Running shoe designs and running injuries: a psychological link? “Sophisticated” designs might raise risky behavior. http://bit.ly/9AJTkS

How does blood doping work? It has “multifactorial effects,” not just an oxygen boost. http://bit.ly/cmuZb3

In trained male runners, RE assoc’d with muscle stiffness and inversely assoc’d with lower power. http://bit.ly/ctpfFE

Tiny study, but low carb diet increases RPE of high intensity exercise. And diminishes performance. http://bit.ly/cKoZgF