Strength Training Helps You to Maintain Your Weight
Strength training boosts excess post-exercise consumption. It can also help one boost more weight loss, compared with aerobic exercise alone. [2] Resistance training tends to keep your metabolism active after exercising much longer than aerobic workout. Study has shown that dieters who do strength training regularly (about 4 times a week) tend to lose more fat. [3]
This explains that in attempt to reduce your body weight, it would be best to mix strength training with a diet that helps reduce calories. Proper combination of the two with a help of a trainer and a dietician will help improve your lean muscle mass.