Turn a favorite leisure activity into your workout of choice.

Lots of things you're already into — dance, roller derby, hula hooping, really anything with vigorous movement — can be turned into a workout. Weighted air drumming for fitness? Yup.

Research has shown that people who have a desire to work out because they enjoy it are actually more likely to work out.

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Do a partner workout with a fitter friend.

Doing a partner workout that requires you and a friend to collaborate means bonding over shared suffering and cheering each other on. Bonus: It'll strengthen your commitment knowing that bailing on a workout means flaking on a friend.

If you don't feel like sharing your workout, there's still good news. A 2012 study found that subjects exercised longer when they worked out alongside someone they believed was more fit than they were.

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