Worth It. A manual treadmill is an inexpensive way to exercise indoors. Automatic treadmills are very expensive and may require yearly maintenance With a manual treadmill you can avoid weather-related circumstances that may interfere with your workout.
Magnetic resistance treadmills are cheaper than traditional treadmills, but give you the same type of results. You have to work harder on these treadmills and they may even be better for you to use when it comes to losing weight.

Stair steppers are a great workout. ... Are they a good workout? Absolutely. Step machines offer moderate- to high-intensity aerobic activity with the added benefit of resistance training you get from pumping your legs.

Twist boards can work your core strength A strong core is also important for physical strength and balance. Twist boards may help you achieve some muscle tone and whittle away fat around your midsection. For some women, this can translate into a flatter stomach, tighter hips, and a smaller waist.

Traditional pushups are beneficial for building upper body strength. They work the triceps, pectoral muscles, and shoulders. When done with proper form, they can also strengthen the lower back and core by engaging (pulling in) the abdominal muscles. Pushups are a fast and effective exercise for building strength.