As the 12-3-30 workout continues to drive interest in structured incline walking, treadmill manufacturers are adapting their product lineups to meet changing consumer demand. Among them is SOLE Fitness, which has released a guide, highlighting its F85 and TT8 treadmills, responding to growing consumer interest in structured uphill walking workouts such as the 12-3-30 method.
More details are available at: https://www.soletreadmills.com/
In an article published in March 2025, Women’s Health notes that walking at a 12% incline at 3 mph for 30 minutes promises to help build lower-body strength, so long as users have access to the right equipment. Accordingly, home gym owners are prioritizing machines that support incline protocols over traditional flat treadmills, with uphill walking increasingly seen as a mainstream cardio preference.
Research supports the metabolic demands of incline walking. A 2025 University of Nevada, Las Vegas study found that participants performing the 12-3-30 workout obtained approximately 40.6% of their exercise energy from fat, compared with 33.1% during self-paced running matched for total energy expenditure.
Multiple incline levels, continuous-duty motors, and cushioned deck technology are named as some of the features conducive to effective uphill training. A 2024 study published in the International Journal of Exercise Science found that treadmill deck design influences impact acceleration and muscle activation during high-incline walking, highlighting the role of cushioning systems in repeated uphill workouts.
The need among consumers, then, is for treadmills that address such training demands through purpose-built engineering. Retailers like SOLE Fitness are stocking treadmill models with shock-absorption systems to mitigate the aforementioned concerns, allowing users to sustain incline training protocols without the cumulative joint strain associated with outdoor hill work.
About SOLE Fitness
SOLE Fitness is a U.S.-based fitness equipment manufacturer. The company designs and distributes treadmills, ellipticals, exercise bikes, rowers, and strength equipment for home and light commercial use.
Additional details can be found at: https://www.soletreadmills.com/blogs/news/3-best-treadmills-for-uphill-walking-in-2026