Most Effective Strength-Training Exercises

If you've been spending any time at the gym, you've probably seen (or done) more than a few sets of these strength-training moves. These exercises are trainer and fitness-buff favorites for balancing and strengthening the body; they are also effective when it comes to shaping, toning, and whittling. Learn how to do these eight essential exercises in time to add them to your shape-up routine!

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