There is a harvard study which shows us that increasing weight training will have the most positive effect on your waistline more than what an aerobic exercise will.
To read more about . These Harvard researchers have tested the results on 10,500 healthy men aged 40 and up, and comparing their physical activity, waist circumference, and body weight over 12 years (1996 to 2008) .
To read more on how to use strength training to lose weight, click here.