The sea of weird and wonderful classes now available has had most people contemplating at least one new talent or skill that they believe will make them more fit, limber or relaxed.
Trampolining, meditation, barre classes and pole dancing are fairly well-established. Various iterations of yoga are joining in, including more unusual formats alongside goats or cats, or encouraging laughter as you hold that downward dog.
If sleeping in a gym or stretching amongst goats seems crazy, it's worth noting that dancing classes such as Zumba and salsa were, at one time, not the norm.
"There are so many weird things coming out today," said Hannah Moir, a health and fitness researcher at Kingston University in the UK. "But there's no harm in the variety. It's good."
Moir's research focuses on the appeal and health benefits of novel physical activities.
Along with most public health officials, Moir is well aware that most of the population -- both in the UK and around the world -- is not active enough or meeting the minimum requirements for good health. So anything that helps get people off the couch is worth it in her eyes.
"These classes are helping to meet different people's needs and interests," Moir said, adding that people are then "more likely to maintain, adhere and benefit."
The (surprising) benefits of Zumba and salsa
In a recent study
, Moir and her team explored one fitness trend that has come to dominate the globe in gyms, studios, community halls and even hospitals: Zumba.
Away from its popularity, the team wanted to calculate the true benefits -- in terms of heart health, calories and mental health -- of strutting your stuff to Latin beats.
"A lot of people don't look at dancing as exercise," she said. With classes like salsa or Zumba, people "don't typically join for the physical activity side, more for the social interaction."
In one study, Moir and her team analyzed the oxygen uptake and heart rates of 24 people who were asked to attend two Zumba classes and two partnered salsa classes, each lasting an hour. The participants wore heart-rate monitors and devices that monitored their movements to measure the physical impact.
Their psychological impact was also measured by asking participants to rate how they're feeling using a scale.
"There was a lot pf psychological benefit," Moir said. "We found improvements in their well-being and reduced psychological stress."
The level of physical activity was found to be moderate to vigorous, with people burning between 400 and 450 calories in one class. This is similar to one hour of light jogging or running for 30 minutes, said Moir.
In a similar vein, the waves of new classes filling gym schedules could have more benefits than people realize.
Moir believes that most people like a challenge and to try new things, and classes like aerial yoga and trapeze give insight into the "previously closed occupation" of being in the circus.
"It's nice that it's now accessible," she said.
Captivating through curiosity
"We hung from ropes and swung upside down," said Mindy Caplan, a certified exercise physiologist with the American College of Sports Medicine who recently tried out a swing yoga class.
Caplan is a group fitness instructor, teaching more traditional classes such as yoga, Pilates, step aerobics and basic muscle training in Albuquerque, New Mexico.
In recent months, she also attended ribbon dancing and hula hooping classes at one of the studios where she teaches.
"It was out of curiosity," she said. "They were fun."
But Caplan admitted that those classes did not appeal to her enough to become a regular thing. "To me, it seemed a little gimmicky, and maybe it wasn't the right intensity," but anything that gets otherwise sedentary people on their feet is a win.
"Most gyms and studios teach basic classes, but every once in a while, you see something new pop up," she said. "Their popularity is not the same as the basic classes ... but if something comes up to get people moving, that's a good thing."
A healthy diet and increased physical activity are public health priorities around the world, due to the fact that one in five adults is predicted to be obese by 2025 -- less than a decade from now -- according to the World Health Organization.
More than 42 million children
under the age of 5 were overweight in 2015, which is likely to carry on into their adolescence and adulthood.
Moir hopes that the new classes and fitness trends will eventually filter down into schools to entice kids in the same way curious adults are being lured toward a gym or studio.
"Our physical activity and behavior is influenced by how active we are in our childhood," she said. "These new activities ... at school might encourage people to be more active throughout life."
Know what works for you
Moir and Caplan add, however, that it is important for people to "think about why they are signing up," to ensure that they choose the right class for them -- one they are more likely to stick to. "People have different health needs," Moir said.
For example, some people may want to work up a sweat with high-intensity exercise, while others may want to burn calories more progressively or simply to release stress. Another factor is injuries or physiques, as people with joint problems or who are obese might opt for less-intense activities.
Moir admitted that she hates running and that Zumba classes were not challenging enough for her, but she is an avid cyclist.
For others, she says, a class may be more about mental health and well-being, as opposed to burning calories.
"Pole dancing is quite intense and hard work, and from that, you will use energy," she said. "While breathing yoga is good for stress release, and more dynamic yoga or Pilates can aid both physical and psychological well-being."
In general, people want to better themselves and focus on their health and fitness, not just losing weight, Caplan said of those who attend her classes.
Caplan believes the basic classes are here to stay, while trends such as hula hooping and trampolining may eventually pass. But regardless of what stays and what goes, the key is the allure.
"It's important for people to try different things and if they like something, stick with it," she said. "As long as it keeps them going, it doesn't matter."
So if you've forgotten how to move down a pole with control, are desperate to beat your daughter on the hula hoop or are longing to join Cirque du Soleil, just get out and do it.
The judges all agree.