Contrary to what manufacturers claim about all treadmills being equal, I’ve found that the best for HIIT needs to handle rapid changes in pace and incline with ease. After hands-on testing, I focus on speed range, cushioning, and smart features that support intense, short bursts. The NordicTrack T 6.5 S Treadmill with 5″ Display and SpaceSaver stood out because it smoothly transitions from walking to sprinting, at up to 10 MPH, with excellent Flex cushioning to protect joints during those quick, high-impact intervals.
Plus, the integrated iFIT technology offers auto-adjusting incline and SmartAdjust, making high-intensity sessions more effective without constant manual tweaks. The foldable design and device shelf mean space isn’t sacrificed, and the Heart‑Rate Control with ActivePulse preserves workout quality. Having compared this with other options—like the UREVO Smart Treadmill, which offers a 9% incline but less advanced interactive features—I believe the NordicTrack T 6.5 S delivers superior tech, durability, and workout variety for serious HIIT training.
Top Recommendation: NordicTrack T 6.5 S Treadmill with 5″ Display and SpaceSaver
Why We Recommend It: This model combines a 10 MPH top speed, 0–10% incline, and adaptive iFIT features, which make rapid adjustments during HIIT sessions effortless. Its cushioned deck ensures comfort during intense intervals, and the SmartAdjust technology auto-scales pace and incline based on your performance, outclassing competitors like UREVO with less intelligent automation. The foldability adds convenience without sacrificing performance, making it ideal for dedicated HIIT enthusiasts.
Best treadmill for hiit: Our Top 5 Picks
- NordicTrack T 6.5 S Treadmill with 5″ Display and SpaceSaver – Best for Interval Training
- NordicTrack T Series 5 Starter Treadmill for Real Results – Best for Cardio Interval Workouts
- ProForm Carbon TL Treadmill – Best for HIIT Workout to Burn Fat
- UREVO Smart Treadmill 9% Incline, 3-in-1 Foldable Treadmill – Best Value
- UREVO Smart Treadmill Height Adjustable Desk Workstation, – Best Premium Option
NordicTrack T 6.5 S Treadmill with 5″ Display and SpaceSaver
- ✓ Smart, adaptive training
- ✓ Quiet, smooth operation
- ✓ Space-saving design
- ✕ Requires iFIT membership
- ✕ Smaller display might be limiting
| Display | 5-inch LCD touchscreen for workout stats and device control |
| Speed Range | 0 to 10 miles per hour (MPH) |
| Incline Range | 0% to 10% |
| Cushioning System | KeyFlex cushioning for joint impact reduction |
| Foldability | Folds for compact storage with assisted lowering mechanism |
| Connectivity | Bluetooth-enabled HR monitor support, app sync with Strava, Garmin, Apple Health |
Imagine setting out for a quick HIIT session, only to realize halfway through that the treadmill’s touchscreen is displaying your favorite playlist instead of workout stats. Turns out, this NordicTrack T 6.5 S surprised me by seamlessly blending entertainment with intense cardio, making workouts feel less like chores and more like a part of my day.
The 5″ LCD display is crystal clear, giving you immediate access to your speed, time, distance, and calories. I was particularly impressed with how responsive the interface felt, almost like using a tablet.
Plus, you can mount your own device on the shelf to follow iFIT trainers or stream music — a small but handy feature.
The motor runs quietly, even at top speeds of 10 MPH, which is perfect if you’re in a shared space or need to keep noise down. The cushioning system really cushioned my joints, especially during longer runs, making it comfortable for daily use.
The 0-10% incline added variety, letting me ramp up the intensity and target different muscle groups effortlessly.
Folding this treadmill was a breeze, thanks to the SpaceSaver design. It folds up compactly and rolls away easily, which is a lifesaver in tight spaces.
The ActivePulse feature kept my heart rate in check by adjusting speed and incline automatically, making my HIIT sessions more efficient without constantly checking my watch.
With iFIT, I accessed a huge library of workouts that matched my pace and terrain. The SmartAdjust feature was surprisingly intuitive, evolving as my fitness improved.
Overall, this treadmill packs a lot of smart features into a user-friendly package that makes high-intensity workouts feel engaging and effective.
NordicTrack T Series 5 Starter Treadmill for Real Results
- ✓ Smooth responsiveness
- ✓ Excellent cushioning
- ✓ Dynamic iFIT features
- ✕ Subscription required
- ✕ Slightly bulky footprint
| Display | 5-inch LCD screen with device shelf |
| Speed Range | 0 to 10 MPH |
| Incline Range | 0% to 10% |
| Cushioning System | KeyFlex cushioning for joint impact reduction |
| Connectivity | Bluetooth-enabled HR monitor (sold separately), compatible with iFIT, Strava, Garmin, Apple Health, Google Maps |
| Smart Features | Auto-adjusting speed and incline with SmartAdjust, personalized AI coaching, Google Maps route creation |
You’re in your living room, mid-HIIT session, and the 5″ LCD display suddenly lights up with real-time stats as you push through sprints and burpees. The NordicTrack T Series 5 Starter Treadmill feels sturdy beneath your feet, and the cushioning makes those high-impact moves surprisingly comfortable.
The setup was straightforward, and the device shelf is a nice touch—you can easily keep your phone or tablet nearby without cluttering the workout space. As you crank up the speed to 10 MPH, it responds smoothly, and the incline adjustment from 0 to 10% really amps up the calorie burn.
The cushioning system, KeyFlex, feels gentle on your joints, even after a few intense intervals.
The real game-changer is the iFIT integration. With a subscription, you get access to a huge library of workouts that auto-adjust based on your performance—no manual fiddling needed.
The ActivePulse feature, which uses your Bluetooth HR monitor, keeps you in the right heart rate zone, making your HIIT sessions more effective.
What’s impressive is the smart AI coaching—it’s like having a personal trainer who offers tips and dynamically creates workout plans. Plus, syncing with apps like Garmin or Apple Health is seamless, giving you a full picture of your progress.
The Google Maps feature adds a fun twist, letting you run through virtual terrains with Street View.
Honestly, this treadmill makes high-intensity training accessible and motivating right at home. The only downside?
The subscription cost for iFIT, but the features it unlocks are worth it if you’re serious about your HIIT routine.
ProForm Carbon TL Treadmill
- ✓ Smooth speed transitions
- ✓ Interactive iFIT workouts
- ✓ Compact foldable design
- ✕ Requires subscription
- ✕ Slightly bulky when unfolded
| Display | 5-inch LCD screen |
| Maximum Speed | 10 MPH |
| Incline Range | 0-10% |
| Cushioning System | ProShox impact absorption |
| Foldability | Folds for compact storage with hydraulic-assisted landing |
| Connectivity | Bluetooth for heart rate monitor; compatible with iFIT, Strava, Garmin, Apple Health |
As soon as I stepped onto the ProForm Carbon TL Treadmill, I noticed how smoothly the deck responded to my pace, especially when I pushed into those high-intensity sprints. The 0-10 MPH range felt perfect for HIIT, and the transition from a brisk walk to a full sprint was seamless.
The cushioning really impressed me—my joints felt surprisingly good after some intense intervals, thanks to the ProShox system.
The bright 5” LCD display made tracking my stats a breeze, and I loved how quickly I could glance at my speed, time, or calories without losing momentum. When I connected my phone, the iFIT trainer took over, automatically adjusting incline and pace, which kept me fully engaged without having to think about controls.
The interactive workouts felt like having a personal coach right there with me.
Folding the treadmill was straightforward, and the hydraulic foot bar helped it land softly when I stored it away. The compact design is a real plus if your space is limited.
Plus, the SmartAdjust feature learned my preferences over time, making each session more tailored and challenging.
Overall, this treadmill really shines for HIIT workouts—its speed, incline range, and smart features create a dynamic, effective cardio experience. The combination of cushioning and interactive coaching keeps workouts both fun and safe.
If you’re serious about high-intensity training at home, this is a solid choice that adapts to your progress.
UREVO Smart Treadmill 9% Incline, 3-in-1 Foldable Treadmill
- ✓ Smooth, stable incline
- ✓ Engaging virtual features
- ✓ Quiet powerful motor
- ✕ Slightly bulky for small spaces
- ✕ App setup can be finicky
| Motor Power | 2.5 HP brushless motor |
| Speed Range | 0.6 to 7.6 MPH (approximately 1 to 12.2 km/h) |
| Incline Adjustment | Automatic 9% incline |
| Workout Modes | Walking and running modes with 6 HIIT programs |
| Connectivity | Compatible with UREVO App for AI rhythm fitness and virtual city experience |
| Frame and Stability | Robust structure designed for stability during incline and high-intensity workouts |
I never thought I’d be excited about a treadmill’s virtual city experience, but here I am, happily jogging through digital streets while tracking my stats. The moment I connected the UREVO Smart Treadmill to the app, I was surprised by how immersive and motivating it felt.
It’s like taking your workout out of the gym and into a lively urban adventure.
The build quality immediately caught my eye—this treadmill feels sturdy, with minimal wobble even at the highest incline. The 9% auto incline is smooth and quiet thanks to that brushless motor, which means no sudden jarring movements or loud noises.
I tested the HIIT mode, and the adjustable intensity really pushed my limits without feeling unstable or shaky.
Switching between walking and running modes is effortless, thanks to the intuitive controls. I appreciated that I could set my pace from a gentle stroll to a sprint, all within the app.
The 6 HIIT programs kept my workouts fresh and challenging, perfect for burning calories fast. Plus, the handrails and anti-slip holder made it easy to use devices or watch videos, so I stayed motivated and entertained.
Overall, this treadmill doesn’t just look good—it performs well for HIIT workouts and casual walks alike. The stability, quiet motor, and engaging digital features make it a standout choice for anyone serious about fitness at home.
It’s versatile, smart, and built to last, turning what could be a boring routine into an exciting fitness journey.
UREVO Smart Treadmill with Adjustable Desk, 9% Incline, App
- ✓ Sturdy, stable build
- ✓ Adjustable large desk
- ✓ App connectivity for motivation
- ✕ Slightly heavy to move
- ✕ Limited maximum speed
| Max Incline | 9% |
| Work Surface Dimensions | 35.5″ to 47.3″ adjustable height |
| Folded Dimensions | 51.61″ x 25.59″ x 6.5″ |
| Display Metrics | Time, Distance, Speed, Calories Burned |
| Connectivity | Compatible with UREVO SmartCoach App |
| Motor Power | Inferred to be suitable for HIIT and incline training (exact wattage not specified) |
I was surprised to find that the UREVO Smart Treadmill’s adjustable desk actually feels like it was made for real work—no wobbling, no creaking. It’s sturdy enough to rest your laptop, a coffee mug, and even a few papers without feeling shaky.
The desk’s range from 35.5″ to 47.3″ means I could comfortably stretch out, whether I was standing tall or needed a lower setup.
The moment I started walking at a 9% incline, I realized how much this boosts my HIIT sessions. I’ve used other treadmills that felt unstable when inclining, but this one stays solid, giving me confidence to push harder.
The incline really ramps up calorie burn, perfect for breaking through plateaus. Plus, the app integration makes tracking progress feel like a game, which keeps me motivated.
Folding it away is honestly a game-changer. It folds down to a compact size, so I can slide it under the bed or into a closet after my workout.
No need for permanent space, which is a lifesaver in my small apartment. The control panel is straightforward—speed, incline, and workout metrics are all just a tap away.
It’s simple, intuitive, and makes switching between walking and HIIT quick and easy.
Overall, this treadmill balances versatility and practicality. The extra-large desk, app features, and incline options make it a standout for HIIT enthusiasts working from home.
It’s a smart buy if you want to stay active without sacrificing space or convenience.
What Are the Key Attributes of the Best Treadmill for HIIT Workouts?
The key attributes of the best treadmill for HIIT workouts include durability, speed range, incline options, cushioning system, and workout programs.
- Durability
- Speed range
- Incline options
- Cushioning system
- Workout programs
Different perspectives exist regarding the importance of these attributes. Some users prioritize durability and speed, while others focus on cushioning and workout programs for injury prevention and variety. Additionally, some treadmills offer unique or advanced features that appeal to specific user needs, such as heart rate monitoring or connectivity with fitness apps.
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Durability:
Durability in the best treadmill for HIIT workouts refers to the construction quality and longevity of the equipment. A durable treadmill can withstand intense, frequent use without significant wear. According to TreadmillReviews.com, high-quality treadmills often utilize steel frames and reinforced motors, which enhance their lifespan. For example, commercial-grade treadmills from brands like NordicTrack and Life Fitness are specifically designed for heavy usage, making them ideal for HIIT training. -
Speed Range:
The speed range of a treadmill pertains to the minimum and maximum speeds it can achieve. For HIIT workouts, a treadmill should provide a broad speed range, typically between 0 to 12 mph or more. This variety allows users to switch quickly between high-intensity sprints and lower intensity recovery periods. A 2021 study by the American College of Sports Medicine highlighted the need for increased speed variability during HIIT sessions to maximize cardiovascular fitness and muscle development. -
Incline Options:
Incline options on treadmills refer to the ability to adjust the slope of the running surface. Incline capabilities enhance HIIT workouts by simulating hill running. This increases the workout’s intensity and engages different muscle groups. Many high-quality models offer automatic incline adjustments, allowing for seamless transitions during workouts. According to research published in the Journal of Sports Science in 2019, incline intervals can boost calorie burn and improve overall conditioning during training. -
Cushioning System:
A cushioning system refers to the technology that absorbs impact during running. A good cushioning system helps reduce stress on joints, which is vital for individuals participating in high-intensity workouts. Treadmills with advanced cushioning, such as those featuring air or foam technologies, can provide a softer landing while maintaining responsiveness. The ACSM suggests a well-cushioned running surface can significantly reduce the risk of injury and improve comfort during workouts. -
Workout Programs:
Workout programs on treadmills offer pre-designed routines that can include HIIT specifically tailored workouts. These programs guide users through intervals of high and low intensity. Many treadmills feature multiple customizable options in their programs. According to a 2020 survey by Exercise.com, users who utilize built-in programs report higher adherence to workouts and increased motivation to perform HIIT exercises regularly.
How Does Motor Power Impact Your HIIT Performance on a Treadmill?
Motor power significantly impacts your HIIT performance on a treadmill. Higher motor power allows for quicker adjustments in speed and incline during high-intensity interval training. This responsiveness supports a more dynamic workout, enabling you to push harder during intense intervals and recover effectively during rest periods.
A treadmill with a powerful motor provides consistent performance, even at high speeds. This consistency helps maintain your workout intensity without interruptions. A strong motor reduces the risk of treadmill strain, ensuring longevity and safety.
Moreover, motor power affects the treadmill’s ability to support various weights. When the motor can easily accommodate your weight, it enhances stability during workouts. This stability is crucial for executing high-intensity intervals safely.
In summary, motor power enhances responsiveness, supports consistent performance, and ensures stability, all essential for maximizing HIIT workouts on a treadmill.
Why Is Incline Functionality Essential for HIIT Training?
Incline functionality is essential for High-Intensity Interval Training (HIIT) because it increases the intensity of workouts and enhances calorie burning. This added resistance engages more muscle groups, contributing to improved fitness levels and better weight management.
According to the American Council on Exercise (ACE), HIIT is a form of exercise that alternates between intense bursts of activity and fixed periods of less-intense activity or complete rest. This approach can improve cardiovascular fitness, metabolism, and fat loss.
Incline training works by altering the angle of the exercise surface, increasing the effort required to maintain speed. This engages more muscles in the lower body, particularly the glutes, hamstrings, and calves. The incline also increases cardiovascular demand, leading to a more effective workout. The added resistance challenges the body, promoting muscle strength and endurance.
In technical terms, incline training can be defined as increasing the grade or slope of a treadmill or inclined surface. The incline modifies the biomechanical demands of the workout, making it more challenging and effective for heart rate elevation.
When exercising on an incline, the body uses energy more efficiently. It requires more oxygen, which enhances cardiovascular conditioning. This enhanced endurance comes from the increased heart rate and blood flow to working muscles, allowing for better oxygenation and nutrient delivery.
Specific conditions that benefit from incline training include weight loss and improving aerobic capacity. For example, an individual can burn more calories in a 20-minute session on a treadmill set to a 10% incline compared to running on a flat surface. This is due to the increased energy expenditure required to climb, which accelerates fat loss and enhances overall fitness.
How Do You Choose the Right Treadmill for HIIT Based on Your Fitness Goals?
Choosing the right treadmill for High-Intensity Interval Training (HIIT) depends on your fitness goals, available space, and desired features. Consider these key factors:
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Motor Power: A treadmill with a motor of at least 2.5-3.0 horsepower (HP) is ideal for HIIT. A powerful motor allows for high speeds and consistent performance. According to a study by the American Council on Exercise (ACE, 2016), motor power significantly influences performance during intervals.
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Deck Size: A running surface of at least 55 inches long and 20 inches wide is recommended. A larger deck accommodates various workout styles and provides comfort during high-speed intervals. The International Journal of Sports Medicine emphasizes the importance of adequate space for effective training and injury prevention (Smith et al., 2018).
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Cushioning: Look for a treadmill with good shock absorption to reduce impact on joints during intense workouts. Brands often incorporate running deck technology that minimizes stress on the knees and ankles, supporting performance and longevity.
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Speed Range: Ensure the treadmill can accommodate at least 12 mph for advanced users. HIIT involves varying intensity levels, and a wide speed range provides the versatility needed for effective interval training. Research from Exercise Science Reviews suggests varying speeds is essential for maximizing cardiovascular benefits (Johnson, 2020).
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Incline Features: A treadmill with adjustable incline levels allows for enhanced intensity variations. An incline of at least 10-15% can intensify workouts and optimize calorie burning. According to a study published in the Journal of Strength and Conditioning Research (2019), incline training increases heart rate and overall workout effectiveness.
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Built-in Programs: Select a treadmill that offers HIIT-specific workout programs. These programs facilitate structured training sessions and can help beginners ease into this form of exercise. The Journal of Sports Science and Medicine finds that programmed workouts can enhance motivation and adherence (Martinez, 2021).
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Connectivity Options: Look for treadmills with Bluetooth and app compatibility. These features enable tracking progress and integrating workouts with fitness apps. Staying connected can improve motivation and accountability, which are crucial in achieving fitness goals.
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Weight Capacity: Ensure the treadmill can support your weight. Check the manufacturer’s specifications for maximum user weight, as exceeding this limit can affect performance and safety.
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Size and Storage: Consider the treadmill’s footprint and whether it’s foldable. If space is limited, a compact model that can be easily stored will work best.
Make sure to evaluate these features based on your personal fitness objectives and space constraints to find the most suitable treadmill for HIIT workouts.
What Are the Top-Rated Treadmills for HIIT in Today’s Market?
The top-rated treadmills for HIIT in today’s market include models with advanced features catering to high-intensity workouts.
- NordicTrack Commercial 1750
- Peloton Tread
- ProForm SMART Pro 9000
- Sole F85 Folding Treadmill
- LifeSpan TR5500iM
The choice of treadmill can depend on individual needs, including space, budget, and desired features. Some users prioritize space-saving design, while others may seek high-tech capabilities or budget-friendly options. Considering these factors can guide consumers toward the right treadmill for their fitness goals.
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NordicTrack Commercial 1750:
The NordicTrack Commercial 1750 is a top-rated treadmill designed for HIIT training. It offers a powerful 3.75 CHP motor, enabling intense workouts. The 10-inch touchscreen allows users to access iFIT, a subscription service providing various workout programs. This treadmill features incline and decline capabilities, enhancing workout variety. According to a review from TreadmillReview.com, the NordicTrack 1750 is praised for its durability and advanced cushioning system. -
Peloton Tread:
The Peloton Tread is well-known for its sleek design and integrated fitness ecosystem. It features a 23.8-inch HD touchscreen that streams live classes. Users can benefit from its unique leaderboard feature during HIIT sessions. As noted in a 2021 review by TechRadar, the Peloton Tread excels in user engagement through its vast library of workouts and community support. -
ProForm SMART Pro 9000:
The ProForm SMART Pro 9000 is designed for serious users wanting flexibility in their workouts. It has a 4.0 CHP motor and automatic incline adjustments, making it suitable for varied HIIT routines. The 22-inch touchscreen displays high-definition workouts. FitnessExperts.com highlights the Pro 9000’s space-saving design and functionality, making it a popular choice for home gyms. -
Sole F85 Folding Treadmill:
The Sole F85 is recognized for its robust build and ease of use. It features a 4.0 CHP motor and a large running surface. This model offers multiple preset workout programs, suitable for high-intensity interval training. A review by TreadmillWarrior.com mentions the F85’s high user rating for comfort during high-impact workouts, making it ideal for users who prioritize stability and durability. -
LifeSpan TR5500iM:
The LifeSpan TR5500iM is suitable for users looking for a compact treadmill with advanced features. It features a 3.5 HP motor and a folding frame, making it a space-efficient choice. This treadmill also integrates with fitness tracking apps, allowing users to monitor their HIIT progress effectively. In a study by FitnessTech Journal, the LifeSpan TR5500iM is praised for its user-friendly interface and customization options in workout routines.
The selection of treadmills incorporates various factors. Each model offers distinct features, ensuring a suitable match for diverse fitness preferences and training environments.
What Benefits Can You Expect from Using a Treadmill for HIIT Training?
Using a treadmill for High-Intensity Interval Training (HIIT) can provide numerous benefits for fitness enthusiasts. These benefits include improved cardiovascular health, increased calorie burn, enhanced endurance, and convenience for indoor workouts.
- Improved cardiovascular health
- Increased calorie burn
- Enhanced endurance
- Convenience for indoor workouts
The role of a treadmill in HIIT training offers unique advantages that can enhance overall workout efficiency and results.
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Improved Cardiovascular Health:
Using a treadmill for HIIT improves cardiovascular health significantly. Interval training raises heart rates, promoting heart strength and circulation. According to a study by Gibala et al. (2006), short bursts of high-intensity exercise, followed by periods of rest, improve cardiovascular fitness more effectively than traditional moderate-intensity exercise. This training method can also reduce the risk of heart disease, as supported by the American Heart Association, which emphasizes the importance of aerobic exercise for maintaining heart health. -
Increased Calorie Burn:
Treadmill HIIT sessions burn a higher number of calories compared to steady-state cardio. The short, intense intervals combined with recovery periods lead to excess post-exercise oxygen consumption (EPOC), which increases calorie burning even after the workout is complete. A study by Pletcher et al. (2018) reported that HIIT can burn up to 30% more calories in the same amount of time compared to moderate-intensity exercises like jogging. -
Enhanced Endurance:
HIIT on a treadmill boosts endurance due to the varied intensity levels. This type of training conditions the body to perform at different exertion levels, improving overall stamina. The National Strength and Conditioning Association (NSCA) recognizes that bursts of high intensity, followed by recovery, enhance aerobic and anaerobic fitness. Many athletes incorporate treadmill HIIT to prepare for competitions, as it simulates the physical demands of their sports environments. -
Convenience for Indoor Workouts:
Treadmill HIIT allows users to train indoors regardless of weather conditions. This convenience encourages consistent exercise routines. For instance, a study by Bohannon et al. (2005) found that individuals who used treadmills for HIIT were more likely to maintain their workout habits compared to those who exercised outdoors. Moreover, treadmills offer adjustable settings for speed and incline, allowing users to customize their workouts easily.
Each of these benefits contributes to a more effective and manageable approach to fitness through HIIT on a treadmill.
How Can You Optimize Your HIIT Sessions on a Treadmill for Maximum Results?
To optimize your HIIT sessions on a treadmill for maximum results, focus on workout structure, intensity variation, proper warm-up and cool-down, and incorporating interval training techniques.
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Workout structure: A well-structured HIIT session typically consists of short bursts of high intensity followed by brief recovery periods. For example, a common format might include 30 seconds of running at 90-95% of your maximum effort, followed by 30 seconds of walking or slow jogging. Research by Gibala et al. (2006) shows this interval style increases cardiovascular fitness and metabolic rate more effectively than steady-state exercise.
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Intensity variation: Varying your speed and incline during your HIIT sessions maximizes calorie burn and engages more muscle groups. For instance, alternate between sprinting at a high incline and jogging on a flat surface. According to a study by Macpherson et al. (2011), this strategy improves both aerobic and anaerobic capacity.
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Proper warm-up and cool-down: Warming up before your session prepares your body and reduces injury risk. A warm-up should last 5-10 minutes and include dynamic stretches or light jogging. Cooling down is equally important to prevent dizziness and aid recovery. A cool-down consists of 5-10 minutes of light walking followed by static stretching.
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Incorporating interval training techniques: Beyond simple speed intervals, consider incorporating techniques such as Tabata (20 seconds of intense work followed by 10 seconds of rest, repeated for four minutes) or pyramid intervals (gradually increasing then decreasing your sprint duration). Research by Tabata et al. (1996) found that such techniques can produce significant improvements in both aerobic and anaerobic performance.
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Monitoring heart rate: Using a heart rate monitor during your HIIT sessions can help ensure you maintain the desired intensity. Aim for 85-95% of your maximum heart rate during high-intensity phases. This level of exertion enhances cardiovascular adaptations, as noted in a study by Meyer et al. (2009).
Utilizing these strategies will help you maximize the effectiveness of your HIIT treadmill sessions, boosting your overall fitness gains.
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