Celebrities have a new favourite workout that’s a throwback 1980s.
The VersaClimber is a cardio machine that mimics the sensation of climbing a mountain.
It’s been around since 1981 when it was first created in a mechanical engineer’s garage in California.
“The big heyday for VersaClimber was the late ’80s. It was running on all cylinders. It was very, very busy,” Brett Collins, the sales manager of Versaclimber, told ESPN.
Now, it’s experiencing a comeback and everyone from Lady Gaga to Hilary Duff swear by the machine.
Find out what all the fuss is about below:
When you're on a VersaClimber, you stand upright and hold onto the handles, while pushing the pedals with your feet. The machine only moves as fast as you do, so you set your own pace.
The idea is to do a mix of short and long strokes and adjust the range and speed of each stride. While one leg steps, the arm reaches out -- it is a push and pull move.
The machine forces you to use both your lower and upper muscle groups, without putting pressure on your joints.
The machine has a monitor to track your heart rate and the amount of calories you are burning. According to Jason Walsh, the founder of Rise Nation, a workout studio that uses VersaClimbers in West Hollywood, you burn between 600-800 calories in 30 minutes.
LeBron James swears by the machine. In fact, he told ESPN: 'If I could only have one piece of equipment to train with for the rest of my life this would be it.' He has three machines in his houses across the country, according to ESPN.
Lady Gaga uses the machine to get herself fit for concerts. 'I work out a lot, and I do VersaClimbing while I sing,' Gaga told 'Good Morning America.' Gaga claims she also sings her entire show while she is exercising on the machine.
Jennifer Aniston, Hillary Duff, and Ashley Greene are also fans and attending climbing classes at Walsh's West Hollywood fitness studio, Rise Nation.
NOW WATCH: Executive Life videos
Business Insider Emails & Alerts
Site highlights each day to your inbox.