John
P. Porcari is a bit of a reality TV show junkie. When he wants to work out, the
retired professor of sports and exercise science from the
University of Wisconsin-LaCrosse goes downstairs and watches “Alaska: The Last Frontier” or
“Naked and Afraid” while bouncing on a mini trampoline. Just before speaking
with the New York Times, he had completed four sets of 50 bounces while
watching Discovery Channel’s “Gold Rush”.
اضافة اعلان
“I have a ski
trip in January to get ready for,” he said.
The global
market for trampolines is anticipated to rise to $4.1 billion by 2027, up from
an estimated $2.9 billion in 2020. Despite its exploding popularity — fueled in
part by the pandemic, when demand for mini trampolines skyrocketed amid gym
closures — the trampoline still seems more like a kid’s toy than a legitimate
workout tool. But a growing body of recent research suggests that trampolining
(also known as rebounding) is an impressively effective, efficient mode of
exercise.
In one small
2016 study Porcari conducted for the
American Council on Exercise, 24 college
students jumped on mini trampolines for six months. During each 19-minute
workout, men burned an average of 12.4 calories per minute, while women burned
9.4 calories per minute, similar to running 9.7kph on flat ground. Yet the
participants rated their effort on the trampoline as lower than one would
expect for that level of exertion. In short, Porcari said, they were having too
much fun to notice.
Though there are
few large, high-quality studies on trampolining, the studies that exist suggest
it improves balance, cardiovascular fitness, and pelvic floor musculature, all
while being gentler on the joints than higher-impact forms of exercise. Here is
what the experts say about trampoline workouts and how to get started.
Improve your balance
In addition to being a cardiovascular workout, bouncing is “fantastic”
for balance, as it builds muscles in your feet, ankles, and calves, Porcari
said. This is particularly important as people age and their risk of falling
goes up.
Another small
study, published in 2011, suggested that jumping on a mini trampoline can
specifically improve dynamic balance, the type of balance required when you are
walking, climbing stairs, or standing in place. In older people, improving
dynamic balance can lower the risk of falls.
Porcari said
that even a simple routine of five or 10 minutes three days a week, alternating
between jumping on one foot and two feet, can improve balance.
“Because of the
relatively high intensity of trampoline exercise, you can get away with fewer
minutes,” than, say, on the elliptical or treadmill, he said.
Support your pelvic floor
Trampolining may offer unique benefits
for older women, who are at higher risk of developing conditions like
osteoporosis and urinary incontinence than men. About 70 percent of
American women over 60 have some form of urinary incontinence. The largest segment,
about 53.1 percent of women in this age group in a recent study, experience
involuntary loss of urine caused by physical activity (or laughing, sneezing,
or coughing) that increases abdominal pressure.
Some evidence
suggests that trampolining may preserve or strengthen the muscles that can
prevent this.
One small study
published in 2018 suggested that the pelvic floor muscles are highly active
during mini trampoline jumping, and another, not yet published, indicates that
pelvic floor function can be improved by rebounding. In that study, 37
postmenopausal women did 30-minute mini trampoline workouts three times a week.
After 12 weeks, the women had better scores on urinary incontinence and higher
bone mineral density. (Their bone mineral density returned to normal when they
stopped rebounding regularly.)
Anja Fricke, a
graduate student at Massey University in Wellington, New Zealand, and the lead
author on the study, said women should start with simple jumps while holding
onto a handrail if available. Start with intervals of eight minutes of bouncing
followed by two-minute breaks. To get the pelvic floor muscles activated,
Fricke suggested squeezing a soft gym ball or a lightweight kids’ soccer ball
between the legs, then jumping by pushing off with both legs while keeping the
ball in place.
Safeguard your joint health
Trampolining may also be better on your joints than exercises like
running, basketball, or tennis, Fricke said. Much of the force of jumping and
landing is absorbed by the trampoline’s elastic surface, making it easier on
your joints than jumping on the ground.
“Running on a
treadmill can be super hard on the joints and the knees. Doing jumps on the
floor can be hard,” said Nicole Schott, a personal trainer at Future in
Cranberry Township,
Pennsylvania, who developed trampoline classes. Rebounding
“allows for you to do those higher-intensity or even more complex movements
without killing your body.”
Embrace your inner
kid — or jump with some real ones
Myriam Gilles, 51, has been rebounding since 2009 at a bouncing studio
called The Ness in New York City. The 50-minute classes blend dance
choreography, hand weight exercises, situps, and planks, all on the trampoline.
“I bounce and I
SoulCycle,” Gilles said. “They’re just gentler to the body and have a community
feeling that I love.”
She said
trampolining also connects her to distant memories of her childhood in Brooklyn
jumping double Dutch.
“I was one of
those Black girls who loved to jump-rope. I sometimes think that there’s
something about the trampoline that reminds me of that,” she said.
Sarah Shultz, a
biomechanist and the interim dean for the School of Nursing and Health Studies
at Monmouth University in New Jersey, said rebounding on a large outdoor
trampoline is an opportunity to connect with her own children.
“I have a great
time going on it with my kids,” said Shultz, a mother of two. “I can get out of
a rough meeting, or I’ll get writer’s block trying to write an article, and
I’ll go, ‘All right, kids. I’ve got five minutes. Let’s make mommy happier.’”
Get started at home
Most experts recommended a trampoline with a 80- to 122-inch jumping
surface, which costs around $50. Higher-end options can cost 10 times that and
may offer a more comfortable springless design, removable legs for easy
transport and storage, and adjustable rubber cords, which make the device less
noisy and lower-impact (since rubber springs are quieter and spongier than
their metal counterparts).
If you feel
unsteady, experts recommend having a wall within arm’s reach or using walking
poles planted on the floor beside the trampoline for balance. To make the
workout harder, you can add wrist or ankle weights. Do not get discouraged if
it takes you a while to master the basics, though.
“Bounce
incorporates balance, cardio, coordination and strength, so there is a bit of a
learning curve when you begin,” said Colette Dong, co-founder of The Ness.
Schott and Dong
recommended a simple mini trampoline routine suitable for beginners:
Side-to-side hops with feet together
Keep a slight bend in the knees and your feet together. Hop both feet
over to the other side of the trampoline and back. Schott stressed the
importance of maintaining a tight core while you do this movement, allowing the
motion to come from the feet.
Bounce-down
Start in a squat. Begin to pulse the heels down continuously into the
trampoline at a rapid rate while maintaining a squat. Then, using the core,
start to lift your knees in toward your center, lifting your feet off the
trampoline while keeping your body low.
“Bounce-down is a
simple but effective move that engages the glutes, hamstrings” and the inner
muscles of your abdomen while getting the heart rate up, Dong said.
High knees
Keeping your knees slightly bent, lift one knee to your chest and alternate
as quickly as you can, running in place. To lower the intensity, slow the speed
to a march.
Twist
Beginning in a squat, keep your feet slightly wider than your hips and
use your obliques to twist the lower body to one side while the shoulders stay
square to the front of your space. Allow your opposite arm to swing forward as
if you were rolling a bowling ball. Once your feet land facing one side,
reverse the action to bring the lower body back to your starting position.
“Twists activate
both your internal and external obliques, creating opposition through the torso
and increasing spinal rotation,” Dong said.
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