29 Feb '16, 6pm

Four fast speed workouts any runner can do:

Picking up the pace periodically can also make your everyday runs feel easier, improve your running form, and foster “mental toughness,” says Flagstaff-based coach Greg McMillan. Plus, for those who have trouble fitting in workouts, speed-work can provide a wealth of benefits in a short time. Still hesitant? What’s your excuse? (We’ll shoot it down.) “I run to improve my health, not to compete.” 
 Skeletal muscle is critical for soaking up glucose from food and keeping blood sugar levels in check. Because intense interval training engages a broader range of muscle fibers, it essentially creates a bigger sponge, helping to fend off diabetes, says Little. It also strengthens the heart muscle and blood vessels and increases the number of mitochondria (the fuel-burning engines in your muscles), making the body more efficient at metabolizing fuel. The result: You have more ener...

Full article: http://www.runnersworld.com/speed/four-fast-speed-workout...

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