fredag 7 december 2012

I went to the beach as planned and loaded up with D vitamin, studied some poker, listened to music while watching people (did the old favorite "pretend people are in a music video" and got a good laugh), did some stretching and wrote down some goals. Before leaving I did some sprints and then took a 40 min. walk back home. Wonderful morning!

Here is the reason I sprint from time to time (found the info here):
  • Sprint intervals improve insulin sensitivity in healthy young subjects, overweight men, and overweight, sedentary women alike. In the youngsters, it improves their lipids, too. Sprint intervals also reduce postprandial lipemia (temporary elevation of blood triglycerides after a meal), and they improve the circulatory function of obese, sedentary women. Sprinting also boosts growth hormone.
  • Sprinting doesn’t just make you better at sprinting. Even though it’s wholly anaerobic, sprinting increases the oxidative (fat burning) potential of muscle and improves endurance capacity. It also improves the efficiency of muscle during exercise, so you can conserve more glycogen and rely on more fat, instead of using up the former right away (perfect for fat-burning beasts). Incorporating sprint training with jump training improves both speed and vertical leap in handball players better than jumping alone.
  • It’s even an effective way to improve agility and speed in young (11 and 12 year olds) kids. I’m not really surprised that 10 and 20 meter runs are effective in making kids more athletic, because that’s exactly how they naturally play – by running around in short bursts! Play-restricted adults, take heed.
  • Best of all, sprinting is the best bang for your buck exercise around. It’s over quick, you’re not in agony for hours at a time (and for more hours after the workout), and it gets the job done. One study even concluded that sprint intervals are a “time-efficient strategy to induce” similar muscular and performance benefits as endurance training.

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