Many of us are often inspired by how fit professional athletes are -- I know that I rarely watch a beach volleyball game without wanting to hit the gym hard. Hard-bodied R&B singer Ciara also admires athletes, but for more than their bodies.

She told Men's Health, "I take my motivation from athletes -- basketball players in particular." She cites LeBron James as a favorite "because he's my age and full of ambition and drive," and also mentions Michael Jordan's ability to pull through in clutch moments, saying, "That energy motivates me."

As a former track star, Ciara appreciates the effort it takes to achieve success on the field, and compares what she does to what elite athletes do: "[W]hen it comes to my career, there's nothing more exciting than being successful at the highest possible level."

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Regular exercise can help strengthen bones, muscles, and joints, but it can also lead to some soreness. In some cases, it can even lead to injury. The same can be said about sports-related injuries; you know, when you try to pull a Lebron James during a pick-up game of hoops, only to end up doing a Rick James and superfreakin' on the ground. In a word: Ouch. In seven words: Ouch. That hurt. Get me some glucosamine.

Research in Sports Medicine published results on a recent study involving the affects of the supplement glucosamine on injured athletes. Taking around 1,500mg of the cartilage-mending supplement per day for 28 days showed promising results in study volunteers, all of which were injured at the outset of the study.

After this 28 day period, the volunteers could flex and extend their knee 10 percent farther than volunteers who did not take glucosamine.