An innovative workout inspired by cross-country skiing is debuting in Flatiron — no snow, goggles, or ski pass necessary.
NRTHRN Strong, the Scandinavian fitness brand that captivated Sag Harbor locals who traded sunscreen for ski poles during a sold-out summer pop-up, is set to open its inaugural permanent studio in the US this Wednesday.
“We were overwhelmed by the positive feedback we received in the Hamptons this summer,” said Nicoline Roth, the founder and CEO of the brand, speaking to The Post. “People quickly connected with the flow, strength, and results of the NRTHRN Strong method.”
At the core of NRTHRN Strong’s concept lies a patented machine developed by a medical professional and former cross-country skier, designed to enhance cardiovascular fitness, strength, and mobility.
“These elements are essential to longevity in fitness,” Roth explained. Raised in Denmark, she introduced NRTHRN Strong’s first location in Copenhagen in 2022.
The machine resembles a walking pad but is equipped with two skis that glide along rails, connected to elastic resistance bands and poles.
Users stand on the platform, engaging their arms in a synchronized push-pull movement designed to mimic the natural rhythm of the double poling technique, which involves powerful leg pushes, arm extensions, and a strong, engaged core.
“This technique is considered one of the most effective total body exercises, enhancing heart and lung capacity, increasing oxygen uptake, and improving endurance,” Roth noted.
The outcome is an endurance-focused workout that raises the heart rate and facilitates significant calorie burning without straining the joints.
This innovative machine is capable of delivering over 50 different routines, customizable to various fitness levels by adjusting resistance, pace, and movement patterns.
“It can accommodate various individuals and needs,” Roth mentioned. “In the Hamptons, our attendees ranged from their 20s to their early 70s.”
While the machine’s design originated on ski trails, Roth emphasizes that its advantages extend well beyond skiing.
Swimmers can utilize it for off-season training to simulate their pulling stroke, while cyclists and runners benefit from enhanced leg strength and core stability.
The machine has even found applications in rehabilitation settings with physiotherapists and serves as an exercise tool for individuals in wheelchairs.
“For skiers, it’s the ultimate off-season training method,” Roth affirmed, although no prior experience on snow is necessary.
The ambience in the Flatiron studio is more reminiscent of a Nordic retreat than a standard fitness establishment.
The design reflects Roth’s Copenhagen heritage with its clean aesthetics, earthy color palette, and an atmosphere reminiscent of Nordic nature. Custom lighting recreates the Northern Lights, while a subtle pine scent transports the forest feel into the city.
“Our concept is deeply inspired by the Nordic lifestyle, so we incorporated elements that highlight the uniqueness of the Nordics,” Roth elaborated.
“Spending time in nature with loved ones is a significant aspect of Nordic culture, and it serves as a profound source of inspiration for us. We’ve worked to recreate that feeling in the studio,” she added.
NRTHRN Strong provides three different classes:
- Signature Strong: Combines high-intensity intervals on the ski machine with core, glute, and arm-focused floor work.
- Sculpt: Slows the pace with a Pilates-inspired format aimed at sculpting and balance, complemented by mindful breathwork.
- Cardio: A high-energy interval class designed to amplify oxygen intake and challenge stamina through quick sprints and powerful movements.
“Our patented machines allow us to bring the dynamic, full-body movement of cross-country skiing inside,” Roth remarked.
“It’s a lively, year-round workout that builds strength, endurance, and mobility, enabling our community to train like athletes in the vibrant environment of the Flatiron studio,” she stated.
Founding memberships are offered at $336 per month, although this price will eventually increase to $480. For those hesitant to commit, a $19 drop-in introductory class is also available.
“Many participants remark, ‘I’ve engaged muscles I never knew I had,’ ” Roth shared. “I frequently hear from newcomers that this experience is like nothing they’ve encountered before, but in a wonderfully positive way.”
