At least four fitness facilities that have closed or are closing were reported by various media outlets around the country this week. Competition from low-price clubs is partly to blame.

The Omni Fitness Club in Muskegon, MI, announced Monday it will close on Aug. 31 after 25 years of operation, the MLive Muskegon Chronicle reported. Owner Lana Carson told the newspaper that the opening of a Planet Fitness in January was "the nail in the coffin."

All current memberships will be honored at nearby Norton Pines Athletic Club through Oct. 1, Carson said on Omni Fitness Club's Facebook page.

"With a sad heart I regret to inform you that the Omni Fitness Club will be closing its doors at the end of business Sunday, August 31st, 2014," Carson wrote. "We thank you for your years of patronage and dedication to your health and fitness. It has been our pleasure to serve you."

Two of the four clubs that closed last weekend were Advantage Clubs in Newark, OH, the Newark Advocate reported. A local real estate company is listing the clubs for $1 million and $654,000, respectively, or both can be purchased for $1.38 million, the newspaper reported.

Maximum Fitness and Planet Fitness opened in Newark this year, and another low-price club, Workout Anytime, will open this fall in Heath, OH, the newspaper reported. Tresha Winston was a fitness instructor at one of the Advantage Clubs. From the Advocate:

"It's sad to say, but when competitors are corporate, you just can't compete," Winston said. "They're $10 (a month), and we can't go that low. This building is old and takes a lot to heat it and cool it. It's been a good place. A lot of good memories here."

Last week, Kosama Madison (WI) closed without warning, according to WISC-TV. The station reported calls, emails and social media messages to the Kosama Madison franchisees and its corporate owners have gone unanswered.

One member, Cynthia Sawatske, told the TV station she recently spent $2,000 on a lifetime membership with the club. From WISC-TV:

"I think it's wrong. You can promote a life membership and then close a few months later. That's ridiculous," she said. "Two grand, it's a lot of money."