Most often people spend long hours in treadmills and ellipticals to reduce weight. Cardio is good for weight-loss but once discontinued it can have adverse effects as there is every chance that you might gain back all or even more of your lost pounds in no time. Building muscle strength and bone density may be the option you want to tread if you are long sighted.
Strength training is a form a physical exercise targeting multiple muscle group where you do rigorous work-out at an elevated heart-rate in short bursts. Strength training helps in enhancing the muscle, bone mass by burning the required fat and increasing the metabolism. Lunges, squats, chin-up, push-up are some of strength training activities.