Whether they’re crunching and crackling, or buckling when they should bend, knees seem to reach their expiration date faster than does skim milk. If your knees feel older than you are, the culprit may likely be found between the hours of 9 a.m. and 5 p.m., according to Erik Moen, a physical therapist and founder of Corpore Sano Physical Therapy in Kenmore, Wash. “Many people are at a computer for work, and all that time sitting makes you lose strength in the hip gluteus medius,” says Moen. He explains that this crucial muscle stabilizes your leg from your hip to your knee, and if you don’t keep them strong, your knees will weaken over time.

Another major knee problem can actually come from being too active — if it’s the wrong activity. Your knees are coated with cartilage, which provides a cushion when you move. “But there’s only so much [cartilage] available for a lifetime,” says Moen. “Once it’s gone, it’s gone. Activities such as running for long distances every day or jumping too much can eventually wear it thin.”

While you can’t quit your job or restore the cartilage already lost, there are steps you can take to minimize further damage and maximize knee health as you grow older:

Being an adult doesn’t mean you can’t enjoy the favorite sports of your youth — or discover something new. Here, a few ideas to get you out of the gym.

More and more women are joining our group and we’ve established an official forum on DailyMile.com – be sure to join us as we get the conversations in there flowing! We will officially be calling this endeavor My Life Run and you will start to see us using the hashtag #MyLifeRun, we’d love to have you join in so that we can cheer you on as well!

The big question on everyone’s mind: Can these new active video games help you, your spouse and your kids get (or stay) fit?

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