Research has shown that regular strength training can increase your BMR (basal metabolic rate) by 15%. That means if you usually burn 2000 calories a day you will burn an extra 300 calories every single day.

http://www.wikihow.com/Lose-Weight-Fast

http://www.weightlossresources.co.uk/exercise/weight_training/benefits.htm

http://o2fitnessclubs.com/blog/

Strength training can provide up to a 15% increase in metabolic rate, which is helpful for weight loss and long-term weight control. - Angie Paxson, Health & Wellness Director Community of Marshalltown

Scientific research has shown that strength training increases metabolism—a key to permanent weight loss—by as much as 15 percent. In fact, a Tufts University study comparing women on identical diet plans found that the strength-training group lost 44 percent more fat than the diet-only group.