You've probably seen people wearing fitness trackers to keep count of the steps they get every day. It's just one health strategy used by people trying to get back in shape.

And those FitBits will be hard at work Wednesday, April 5 as we celebrate National Walking Day. The American Heart Association sponsors the day to encourage people to adopt healthier lifestyles.

Local fitness experts say most days you should spend at least 30 minutes walking. Combined with a healthy diet, that could make a huge difference. Teri Burgess-Brown is charge of health and wellness at Grand Rapids' YMCAs. She says there are many ways to get and stay active. But, walking is one of the activities people tend to be more consistent with.

National Walking Day is the beginning of a month-long campaign to motivate people to get moving. The goal is for adults to get at least 150 minutes per week of moderate exercise or 75 minutes per week of vigorous exercise, or a combination of both.

It launches the same day Subway kicks off its Paper Heart Campaign.

"You can come into one of our 220 Subways and donate a dollar and more. You can put your name on a red heart. We hang them up in our store and it raises money for research at the American Heart Association. It is a great campaign," said Sheryl Hoeksma, owner of a Subway store in West Michigan.

The American Heart Association offers, on its website, more information on the health benefits of walking and fitness.

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