Decline treadmills are excellent for those who are looking for an intense workout. These treadmills are designed for active recovery and light downhill training and are perfect for improving overall leg strength. Declining the treadmill can also help increase the turnover rate, making it great for those preparing to race. On top of that, decline treadmills can replicate the feel of a race course, allowing users to become familiar with the terrain before they even arrive. Overall, decline treadmills offer an intense workout that can be tailored to individual fitness goals.
Using a declined treadmill can make using a treadmill less boring in the wintertime when you’re stuck inside. With a decline treadmill, you can vary the intensity of your workout by adjusting the incline or decline of the treadmill to challenge yourself and make your exercise more interesting. This can help keep boredom at bay and make the experience more enjoyable. Additionally, a decline treadmill can help you work different muscle groups and burn more calories, so you can get more out of your workout. With a decline treadmill, you can keep your exercise routine interesting and effective even during the colder months.
With the advancement of technology, companies are focusing on packing their treadmills with the latest technology; however, incline and decline functionality is missing in many of the newer treadmills. Thankfully, there are still treadmills on the market that come with decline functionality that will help you make your workouts more effective.
Tired of the same old treadmill routine? Then you’re in luck! Here, we’ve rounded up the five best decline treadmills on the market today. Whether you’re looking for a compact option or a larger model that can accommodate serious runners, you’ll find what you need here. But before we get to that, let’s quickly go over why a declining treadmill can benefit your fitness journey.
Why Is A Decline Treadmill Beneficial?
Running downhill benefits runners, from increasing strength and power to improving cardiovascular capacity and oxygen uptake. It can also help to improve running form by strengthening the stabilizer muscles and promoting a faster turnover of steps. Additionally, downhill running sessions such as downhill strides or uphill-downhill repeats can help to improve endurance. All of these factors make downhill running an essential part of any runner’s training program, and will help to make them a faster, more efficient runner.
Using a declined treadmill can be an excellent way to maximize the effectiveness of your workout session. It helps to strengthen your legs’ connective tissue while providing shock absorption to reduce the impact on your joints. This is especially helpful if you are running improperly and can help prevent future problems. Additionally, running downhill on a treadmill is generally healthier than on the ground. With a decline treadmill, you can modify your biomechanics to better suit your running style and boost your overall running speed. This makes it a perfect option for individuals who want to enhance their speed and refine their running technique.
Now that you’re familiar with the advantages of using a declined treadmill, let’s delve into our top five picks for the best-declined treadmills!
Nordictrack Commercial X32i
The NordicTrack Commercial X32i is a state-of-the-art treadmill that brings the convenience of a professional gym workout to the comfort of your home. With its many features, this impressive NordicTrack Commercial X32i is the best overall treadmill on the market. It has a powerful 4.25 CHP motor and an impressive 32-inch HD touchscreen for entertainment. The incline range from -6 to 40% helps you to challenge yourself and burn calories faster as you exercise. The entire treadmill footprint measures 76.5 inches, making it a large and stable machine that can hold up to 300 lbs.
The NordicTrack Commercial X32i Treadmill makes working out enjoyable and interactive with its 32-inch HD touchscreen. Placed directly in the user’s line of sight, the touchscreen brings the user into the experience, with its optimized HD graphics performance and added processor cooling. With a 30-day iFIT trial, the user can access personalized workouts and world-class trainers, while the AutoAdjust feature automatically changes the incline and speed to match the trainer’s instructions.
Its impressive incline and decline capabilities can help you achieve a more intense workout. This treadmill has an impressive 40% incline and -a 6% decline, allowing you to simulate walking uphill and downhill. Additionally, it has a maximum speed of 12 miles per hour, which can be adjusted depending on the incline or decline you choose. The new Quiet Drive Incline Tech also makes your incline treadmill workout even more comfortable, reducing the noise produced when you adjust the incline or decline.
The Nordictrack Commercial X32i is backed by a 10-year frame warranty, a 2-year parts warranty, and a 1-year labor warranty. This 1-year extended parts warranty is available for an additional $199.00, depending on where you buy the treadmill from. Customers looking for an extended warranty can contact Nordictrack, who will provide more details on the specific terms and conditions. Nordictrack is committed to ensuring that customers get the most out of their product, and to this end, the company offers a comprehensive warranty package.
The biggest drawback to the NordicTrack Commercial X32i is its size. This machine is a powerhouse, but it requires a generous plot of real estate to fit it in. With a 32″ HD touchscreen console and a 22″ x 65″ running surface, the X32i has a large footprint and may not be suitable for everyone’s home or gym. In addition, this treadmill is costly and is one of the most expensive treadmills on the market, costing around $4,000.
Nevertheless, the NordicTrack Commercial X32i Treadmill is an excellent option for individuals seeking a decline treadmill. With this amazing treadmill, users can enjoy a versatile workout that is perfect for any fitness level. Regardless of whether you’re a beginner or an experienced athlete, the NordicTrack Commercial X32i declined treadmill is guaranteed to provide you with an exceptional decline treadmill experience.
SOLE TT8 Treadmill
The Sole TT8 Light Commercial Treadmill is an amazing treadmill for runners. Its features include incline/decline, extra-wide running surface, and reinforced frame. It has a solid, commercial-grade non-folding frame, making it perfect for semi-serious runners. The Sole TT8 is also a fraction of the cost of commercial units, making it an incredibly cost-effective option.
The Sole TT8 Treadmill is a heavy-duty, commercial-grade machine with a powerful motor. It stands out from other treadmills in the market thanks to its impressive incline/decline settings. Not only does it offer an incline of up to 15%, but it also offers a decline of up to -6%. This gives users more variety in their workouts, helping them to target different muscle groups, burn more calories, and challenge their cardio. The TT8 also has a top speed of 12 mph, making it perfect for those who want to take their runs or walks to the next level. With its range of incline/decline settings and impressive speed capabilities, the Sole TT8 treadmill is the perfect choice for an intense, challenging workout.
In addition, the Sole TT8 treadmill is a great choice for runners who want an ample running surface. This luxury treadmill provides a generous 22-inch wide by 60-inch long running surface – giving plenty of lateral space and good fore/aft room to accommodate an elongated stride. The 3-inch contoured cushioning is designed to reduce joint impact and provide a comfortable running experience. The powerful and quiet 4.0 CHP motor ensures smooth, consistent running performance. With its generous running surface and advanced features, the Sole TT8 treadmill is perfect for runners of all levels.
While Sole products aren’t particularly known for their advanced technology, this treadmill certainly does cut the mustard when it comes to technology because it offers users a 10-inch TFT LCD screen with the most advanced graphic display. This screen is centered on the console, making it easy to view workout progress and intuitive to navigate with its touch screen capabilities. The LCD screen allows users to see their exercise data in real-time, giving them the confidence to stay on track and reach their fitness goals.
With its built-in Bluetooth speakers, users can easily connect their device to the treadmill and stream sound directly to the integrated speakers. The Sole TT8 offers an integrated iPod dock for those who prefer to listen to their music that way. Connecting to the treadmill via Bluetooth is simple and can be done in seconds. In addition, this treadmill comes with a USB charging port and a built-in cooling fan.
The SOLE TT8 Treadmill is renowned for its durability and reliability and is backed by an impressive warranty. For residential use, the treadmill comes with a lifetime warranty on the frame, motor, and deck, as well as a five-year warranty on electronics and two years for labor. The warranty covers all parts for five years and labor for a year for light commercial use. Whether using the treadmill in your home or a light commercial setting, these warranties offer reassurance that your investment is safeguarded. With such comprehensive coverage, the SOLE TT8 Treadmill ensures you enjoy your workout without worry.
The Sole TT8 is a great piece of equipment for those looking for a heavy-duty, commercial-grade treadmill. However, some users may find the lack of built-in workout programs to be a downside. The TT8 has 10 built-in workout programs, but many other treadmills on the market offer dozens of workout options. While the ten programs with the TT8 are perfectly adequate for most users, those looking for more variety and customization may be disappointed. In addition, the treadmill is bulky and doesn’t offer folding functionality, so if you’re tight on space, this treadmill may not be the most suitable.
This decline Treadmill is an ideal choice for anyone who wants a commercial-grade treadmill with a powerful motor, impressive incline/decline settings, and an impressive 10-inch LCD screen at an affordable price. With its light commercial rating, the TT8 is perfect for those needing a treadmill for high-volume training or multi-user households. In addition, the built-in speakers and responsive customer service make the Sole TT8 an attractive option for those who want to enjoy their favorite music while exercising.
Lifespan TR5500iM Folding Treadmill
LifeSpan Fitness is a brand focused on providing products and services that help people live healthy lifestyles. They offer a wide range of office wellness and everyday fitness products, including treadmill desks, bike desks, and standing desks. Their range of treadmills for the home user is budget-friendly, starting around $750 and featuring some great features. They also have some of the best-selling and highest-rated folding treadmills on the market.
Lifespan Fitness is a popular fitness equipment and apparel brand, but it is less widely known than some competitors. While Lifespan Fitness offers quality equipment and apparel tested to meet the highest standards, the company has not reached the same level of market penetration as some of its competitors. This could be attributed to a shortage of advertising or limited resources accessible to the company. Whatever the reason, it does not appear that Lifespan Fitness is as popular as some of its competitors in the fitness industry; however, they still offer excellent products that rival its competitors. Now let’s move on to our next choice of the best decline treadmill, the Lifespan TR5500iM treadmill.
The Lifespan TR5500iM Folding Treadmill is a great choice for any runner, from beginner to experienced. It features an extra-wide, 22″ by 60″ running surface with eight compression shocks and a 1″ thick deck, making it perfect for all types of training. It is built with quality steel and can hold up to 350 lbs. Its heavy-duty construction makes it suitable for serious runners while still being compact enough when folded to fit in many homes. With its generous dimensions and wide range of features, this treadmill is an ideal choice for any runner looking for a reliable and durable treadmill.
This heavy-duty treadmill features 13 levels of incline and two levels of decline, allowing users to customize their workouts and challenge themselves. The maximum speed of 13.5 mph is great for those who want to push themselves to the limit, while the cushioning deck ensures comfortable exercise.
The TR5500iM has something to offer everyone, whether you’re a beginner or an experienced athlete. It features a large 10″ touchscreen that is intuitive and easy to use, eliminating any vibration to the touchscreen as you run, walk, or sprint. Plus, the smart display-enabled touchscreen allows you to mirror your favorite YouTube video content to the large display while you enjoy your workout. In addition, the Lifespan TR5500iM treadmill offers 50 pre-programmed workouts, fitness tests, and training programs. With the wide variety of programs available, you’re sure to find the perfect workout for you and your goals.
This treadmill also includes an impressive warranty. The frame and motor of the treadmill come with a lifetime warranty, while the parts are covered for up to five years. This gives customers peace of mind that their treadmill is backed by a reliable warranty and that any issues that may arise will be promptly resolved. Customers can also review the manufacturer’s warranty for more information. With this assurance, customers can rest easy knowing they are getting a quality product that will last.
The LifeSpan TR5500iM treadmill is an exceptional choice for those seeking a decline treadmill. With thirteen levels of incline and two levels of decline, this treadmill is ready for any workout. The TR5500iM also takes up minimal space, making it a great addition to any home gym. Since there are no workout restrictions, this treadmill is an excellent option for individuals who want to enjoy the advantages of walking and running on an incline.
ProForm Pro 9000 Treadmill
ProForm and NordicTrack are both manufactured by ICON Health & Fitness, the world’s largest retail manufacturer of fitness equipment. The two brands are owned by the same parent company and feature many of the same policies. Both ProForm and NordicTrack offer users access to the iFit workout programming on their touch screens, allowing customers to get the most out of their workout experience.
As two of the most popular fitness equipment brands, ProForm and NordicTrack provide customers with various features and options. No matter which brand you choose, you can be sure that you are getting quality equipment backed by a reliable parent company. Now that you know that, let’s talk about the next decline treadmill on our list, the ProForm Pro 9000 treadmill.
The ProForm Pro 9000 treadmill is an impressive machine, perfect for beginners and experienced runners. It has a powerful 3.6 CHP motor and a massive 22-inch touchscreen that provides plenty of visual content for the user. The 20″ x 60″ running track is unusually large for the average treadmill, allowing users to move freely and comfortably. It also comes with a 30-Day iFIT trainer, which makes workouts easier and more enjoyable. Plus, the rebound cushioning helps reduce stress on the joints and muscles.
The Pro 9000 is the top-of-the-line treadmill in ProForm’s lineup, and its incline and decline features are second to none. With its power-adjustable incline ranging from -3% to 12%, and its hands-free interactive training sessions, the Pro 9000 gives users the perfect running experience. The incline and decline levels can be easily adjusted with the iFIT trainers, making workouts even more efficient.
This treadmill is designed to meet the needs of even the most demanding runners. With a max speed of 12 mph, this treadmill can handle any challenge you throw at it. It also features QuickSpeed® Button Control, allowing you to easily adjust your speed from 0 to 12 miles per hour.
Regarding the user interface, the Pro 9000 treadmill boasts a remarkable 22″ HD touchscreen, making it the perfect companion for a high-intensity workout. This large display is paired perfectly with the treadmill’s iFit app, allowing users to stream thousands of workouts from their extensive catalog. The touchscreen also offers a bright display to provide users with an incredibly immersive experience. This impressive feature allows users to take their workouts to the next level.
The ProForm Pro 9000 Treadmill offers a convenient way to store the machine after each workout with its EasyLift™ Assist. This feature allows you to effortlessly fold up the deck and maximize storage space with the SpaceSaver® design.
The price of this treadmill is very reasonable, coming in at just over $2,000 from most retailers. This is an incredible value for a treadmill that offers so many features.
The ProForm Pro 9000 Treadmill has an impressive warranty package, offering frame coverage for ten years, parts coverage for two years, and labor coverage for one year. This comprehensive warranty ensures peace of mind for customers and reassurance that their product is durable and reliable. Additionally, ProForm offers a 30-day money-back guarantee if customers are not satisfied with the product, and an additional 12-month manufacturer’s warranty if the product is registered within 28 days of purchase. These warranties show that ProForm stands behind its products, and they are sure to provide customers with a treadmill they can enjoy for many years to come.
The ProForm Pro 9000 treadmill is an excellent choice for those home gym owners looking for a reliable and powerful piece of equipment. This decline treadmill is perfect for individuals who are serious about their fitness and want to maximize their workout.
Nordictrack Commercial 1750
NordicTrack is a great choice for any home gym enthusiast looking for decline treadmills. They offer several different models, each with its own unique features. The Commercial 2950 is a top-of-the-line choice, featuring a 22-inch touchscreen, incline and decline options of up to 15%, and is even foldable for easy storage. If a massive screen is more your style, 2450 is for you. Not only does it have an incline function, but it also offers a decline option, giving you more options for your workout. Whether you’re starting out with a home gym or are an experienced athlete, NordicTrack has a decline treadmill that’s right for you.
However, if you’re on a budget and want something more cost-effective, the NordicTrack 1750 is a great choice.
The NordicTrack Commercial 1750 is a folding treadmill that offers great value for its price. This commercial-grade treadmill is designed to provide peak performance and training experiences for runners of all skill levels and can support up to 300 pounds. The 10-inch touchscreen allows users to stream live and on-demand exercises. The latest model also features a redesigned 14-inch touchscreen monitor and a space-saving foldable design.
This treadmill offers users a unique and smooth workout experience with its incline and decline features. The incline and decline tech is quiet, allowing for a stable workout. The speakers beneath the treadmill can sync to a Bluetooth device, so users can listen to their favorite music or sounds from the treadmill. This treadmill ranges from -3 to 15 percent, so users can choose a level that best suits their needs. With a top speed of 12 MPH, this treadmill is perfect for anyone looking for a varied workout.
It has a powerful 3.5 CHP motor, heavy-duty frame, 2.5″ rollers, and a 22″ x 60″ running surface. In addition, it offers superior shock absorption for a comfortable workout for those with joint issues. It features Runners Flex cushioning, which does a fine job of absorbing impact. Furthermore, the cushioning remains on and will always provide shock absorption.
In terms of warranty, NordicTrack offers customers a generous package, as they do with most of their products. It comes with a 10-year frame warranty, 2-year parts and electronics warranty, and a 1-year labor warranty. This combination of warranties is designed to give customers peace of mind, knowing that NordicTrack can easily take care of any issues or malfunctions. Furthermore, customers can rest assured that their investment is backed by the solid construction and design of the Commercial 1750.
Overall, The NordicTrack Commercial 1750 treadmill is an excellent option for anyone looking to invest in a quality home-use treadmill with all the needed features. Furthermore, its exceptional value for money makes it a perfect selection for individuals who want to make the most of their investment. If you’re searching for the ideal decline treadmill for your home gym, the NordicTrack Commercial 1750 is worth considering.
Buying Guide For Treadmills
Finding the right treadmill for your needs can be overwhelming, but with our treadmill buying guide, you can be confident you’re making the right decision. Our guide will teach you about the different types of treadmills, the features to look for, and other important details.
This knowledge allows you to make an informed purchase that meets your running needs. With our helpful guide, you’ll be able to find the perfect treadmill that’s tailored to your lifestyle.
Whether you’re looking for a reliable treadmill with a lot of features or a more basic model, our guide will help you figure out what’s best for you. Don’t let the process of finding the right treadmill overwhelm you; consult our treadmill buying guide to ensure your purchase is one you won’t regret.
Belt Size
Treadmill belt sizes can vary significantly between brands and models. Budget treadmills often have a smaller belt size than more expensive models, meaning there is less room to run. It is important to assess the belt’s size and the treadmill’s running surface before making a purchase. Consider your running stride and the type of exercise you plan to do before selecting a treadmill size. Considering these factors can help you make an informed decision when purchasing a treadmill.
Running Surface
The deck of the treadmill should be large enough to accommodate a running or walking stride. A longer belt surface is required for running, as it requires a longer stride than walking. Six-foot or taller users may need a longer belt for a comfortable experience. It is also important to test the deck before purchasing; if it feels too soft, it could cause joint discomfort. Researching the type and quality of the treadmill’s deck will ensure that users get the best experience possible.
Motor
When purchasing a treadmill, it is important to consider the motor size. The average motor size on a residential treadmill is 2.5 horsepower (HP), and getting one with at least 1.5 to 2.5 HP is recommended. Additionally, it is important to find one with a “continuous duty” rating. This is particularly crucial for individuals who weigh more, run at higher speeds, or use a steeper incline, as these factors can create more friction on the motor. It is also important to note that motors can range from 2hp to 4hp, depending on the model. Therefore, be sure to find the right motor size that can accommodate your lifestyle and fitness goals.
Weight Capacity
The motor, incline options, and weight capacity are all key factors to consider when deciding which treadmill is best for you. It is important to look for a machine with a motor that is powerful enough to support your body weight and an incline option that allows you to reach your desired level of intensity. The higher the weight capacity, the sturdier the frame and the more reliable the machine. So, when looking for a treadmill, check the weight capacity and find one that meets your needs. Lower-end treadmills typically have a weight limit between 200 and 300 pounds, while higher-end home or commercial treadmills can reach up to 400 pounds.
Warranty
When buying a treadmill, the warranty is one of the most important factors. A good motor warranty should last between 5 and 10 years, while labor warranties typically last for one year. High-end models may even have warranties for as long as 30 years. Companies like Upsie offer more affordable warranties than those provided by retailers. Additionally, frame warranties can range from 10 years to a lifetime, so it’s important to check how well the manufacturer stands behind the quality of their product. Investing in a good warranty can provide peace of mind and ensure you get the most out of your purchase.
Price
Price is a key factor to consider when buying a treadmill. For those on a budget, a variety of options for under $799 can provide good value and hassle-free use. However, if you’re willing to make some trade-offs and invest in a better model, you can find a treadmill with better motors and different workout options for between $1,500 and $3,000. For those looking for a top-of-the-line model, some treadmills cost upwards of $4,000. Ultimately, the type of treadmill you choose will depend on your budget and your needs.
Tips For Running On A Decline Treadmill
- Set Your Running Goals: Before running on a decline treadmill, decide your goals. Do you want to increase your speed, endurance, or overall fitness? Setting a goal will help you stay focused and motivated throughout your workout.
- Treat Your Feet: While running on a decline treadmill, your feet will take more of a beating than they would on a flat surface. Ensure you wear supportive and comfortable shoes, and remember to replace them regularly. Additionally, you can use padding to reduce the impact on your feet.
- Warm Up: It is important to warm up before any exercise, especially when running on a decline treadmill. Take a few minutes to do some dynamic stretches, and then slowly start running at a low incline before gradually increasing the incline.
- Monitor Your Breathing: Running on an incline can cause you to breathe more heavily than usual. Make sure you monitor your breathing to ensure that you don’t overexert yourself.
- Alternate Between Inclines: Avoid running at a steep incline for more than five minutes. You’ll get a much better, safer workout if you alternate between inclines.
- Practice Downhill Running: By practicing downhill running, you can gain an advantage by maintaining intensity over the top of a hill and down the other side. Focus on your technique for optimal performance.
- Focus on Technique: Downhill running requires a different technique than running on a flat surface. Maintain an upright posture and focus on your foot placement, striking the ground with the mid-foot to ensure a smooth and efficient stride.
- Use It to Your Advantage: With practice, you can use downhill running to gain an advantage by maintaining intensity over the top of a hill and down the other side.
Final Thoughts
In conclusion, there are many options available when it comes to choosing the best decline treadmill. Based on the top 5 options highlighted in the blog post, each has unique features and benefits that cater to different fitness goals and preferences. When deciding, it is important to consider factors such as incline range, speed, durability, and additional features such as heart rate monitors and media displays. Ultimately, the best decline treadmill for you will depend on your personal fitness goals, budget, and preferences.
We hope you enjoyed this blog post, and please do let us know if you have further questions!
FAQ’s
Is Decline Running Good?
Decline running can benefit runners, but it should be cautiously approached. According to factual data, running downhill puts much strain on the joints and is harder on the body than on flat surfaces. However, it can also improve running performance by strengthening stabilizer muscles and targeting different muscle groups. It is important to vary the incline during training and to incorporate up and down intervals to avoid overuse injuries. If a runner specifically trains for a downhill race, practicing decline running can be helpful. Overall, it is important to balance decline running with other forms of training and to listen to the body to avoid injury.
Is A Treadmill With an Incline Worth It?
A treadmill with an incline is worth it for weight loss, calorie burn, reduced injury risk, and increased workout intensity. Incline training on a treadmill provides a safe and efficient way to achieve fitness goals.
How Do You Simulate Downhill Running On A Treadmill?
To simulate downhill running on a treadmill, you can put blocks underneath the back legs of the treadmill. This will add another stimulus and make the workout more specific to the demands of a race course with downhill segments. Some newer, technologically advanced treadmills can adjust the incline/decline automatically based on a pre-uploaded course.
Do All Treadmills Fold Down?
No, not all treadmills fold down. There are non-folding treadmills that are more stable and sturdy, but they are generally more expensive than folding treadmills. The choice depends on your needs and budget. Folding treadmills are more convenient for storage and transportation. In contrast, non-folding treadmills are more suitable for runners or athletes who use the machine heavily or for long periods.
Can A Treadmill Fall Through The Floor?
There isn’t a straightforward answer to whether a treadmill can fall through the floor of a house. It hinges on several factors, such as the treadmill’s weight and the floor’s structural integrity. However, it is important to follow the manufacturer’s recommendations for proper placement and usage of the treadmill, which can reduce the risk of damage to the floor or injury to the user. Additionally, hiring a professional to inspect the floor and determine its load capacity can provide peace of mind when using a treadmill in the home gym.
What Is The Best Practice For Putting A Treadmill In Your House?
The best practice for putting a treadmill in your house is to choose a foldable model with a large running surface of at least 140 x 46 cm that utilizes a piston for easier opening. It is recommended to place the treadmill where it can be unfolded and used without moving it every time. Possible locations include:
- Creating a workout room.
- Putting it in the living room.
- Keeping it in your bedroom.
An elliptical or indoor cycle may be a better option for very small spaces.
Why Shouldn’t You Hold Onto The Treadmill?
Holding onto the treadmill while running can negatively affect your workout and overall fitness progress. Below are some reasons why you should avoid holding onto the treadmill while running:
- Reduces the intensity of the workout: Holding onto the treadmill can make the workout easier and less challenging. This is because you are using the handrails to support your body weight instead of relying on your leg muscles to propel yourself forward. As a result, you burn fewer calories and don’t get as much of a cardiovascular workout.
- Affects running form: Holding onto the treadmill can affect your running form and posture. Your body will be in a slightly different position than it would be if you were running without support, which can lead to muscle imbalances and injuries.
- Can cause injuries: Holding onto the treadmill can also cause injuries. If you lose your footing or slip, your hands may be trapped between the belt and the handrail, resulting in serious hand and finger injuries. Additionally, if you hold the handrails too tightly, you can strain your shoulders, arms, and neck.
- Limits the benefits of weight-bearing exercise: Running is a weight-bearing exercise that helps strengthen bones and muscles. However, holding onto the treadmill reduces the weight-bearing effect, so you will benefit less in building bone density and muscle strength.
Overall, it’s best to avoid holding onto the treadmill when running. If you need support, consider using a slower pace or incline to reduce the intensity of your workout, or try using a handrail-free treadmill or other cardio equipment that doesn’t require hand support.