If cold weather is forcing you to move your work out indoors, I think you should check out rock climbing. There are tons of rock climbing gyms with artificial structures made to look and feel like real walls of rock. Learning to rock climb indoors is safe and controlled - a great start if you're looking to rock climb outdoors someday.

Not only does it do an amazing job of strengthening your upper body and your legs - rock climbing is great for women because our center of gravity is at our hips. This makes us really great at maneuvering our bodies up the wall with grace and efficiency.

Check out your local Climbing Gym and sign up for a beginner class which emphasizes the basics of climbing equipment, knot tying, safe climbing practices, and belaying. You'll pay a flat fee for the lessons and any equipment you may need such as shoes and a harness.

Some places even offer Women Only classes taught by women that offer a supportive environment for learning and perfecting climbing skills.

Fit's Tips: Check out this site to find a rock climbing wall or gym near you.