Choosing the Best Treadmill for High Intensity Interval Training

High intensity interval training (HIIT) has become a top fitness trend for its ability to torch calories and build endurance with short, intense bursts of effort. Performing HIIT workouts on a treadmill allows you to precisely control speed and incline levels for optimized interval training.

But not all treadmills are created equal when it comes to suitability for HIIT and running. This comprehensive guide will cover the top-rated interval training treadmills along with smart criteria for selecting a high-performance model tailored to HIIT workouts.

Reviews of Top Interval Training Treadmills

Quality HIIT treadmills need robust motors, quick speed/incline adjustability, proper shock absorption, and integrated program controls within arm’s reach. Here are four top-rated interval training treadmill picks:

NordicTrack Commercial 2950

This powerful NordicTrack model has a 4.25 CHP motor reaching 12 MPH speeds ideal for sprints. The decline range enhances HIIT versatility. The integrated 10” touchscreen gives direct access to customized training.

Key Features:

  • 4.25 CHP DurX Commercial Plus Motor
  • 12 MPH top speed
  • -3% to 15% decline/incline range
  • FlexSelect cushioning deck
  • 10” HD touchscreen with HIIT controls
  • 300 lb. weight capacity

Bowflex Results Series 7

Designed for high intensity training, this Bowflex treadmill offers built-in HIIT programs controlled by QuickSpeed buttons embedded in the handrails. The 3.5 CHP motor and Comfort Tech deck optimize performance.

Key Features:

  • 3.5 CHP motor
  • 12 MPH top speed
  • -5% to 15% incline range
  • Comfort Tech cushioning deck
  • QuickSpeed controls in handrails
  • 9” LCD shows HIIT tracking

Sole F85 Treadmill

Sole’s Fold Flat technology makes storage easy when not running HIIT. A powerful 3.5 CHP motor, cushioned deck and integrated fans keep intense training comfortable on this model.

Key Features:

  • 3.5 CHP motor
  • 12 MPH top speed
  • -3% to 15% incline range
  • Cushion Flex Whisper Deck
  • Fans and device holders
  • Fold Flat storage capability

Nautilus T618 Treadmill

This mid-range Nautilus treadmill still packs a 2.75 CHP motor to reach 12 MPH speeds. The StrikeZone cushioning targets impact zones. Dual displays and fans enhance interval training functionality.

Key Features:

  • 2.75 CHP drive system
  • 12 MPH top speed
  • 0% to 15% incline range
  • StrikeZone cushioning deck
  • Dual LCD displays with fans
  • Integrated media shelf

Key Buying Considerations for HIIT Treadmills

Once you’ve explored some top interval treadmill options, keep these key factors in mind for selecting the best model for your high intensity training:

Motor Power

HIIT involves running so look for motors with at least 3.0+ CHP strength. Quick acceleration relies on robust continuous duty motors.

Speed/Incline Adjustability

The ability to rapidly increase speeds and adjust inclines directly optimizes interval training versatility. Seek one-touch controls.


Quality cushioning prevents joint pain and impact injuries during HIIT. Look for thick cushioning like FlexSelect decks.

HIIT-Specific Programs

Integrated HIIT programs allow you to execute work/rest intervals by pressing quick-speed buttons at handrails.

Heart Rate Monitoring

Track your interval intensity via grip sensors or Bluetooth heart rate connectivity. Interval training maximizes calorie burn by targeting heart rate zones.

Shock Absorption

Cushioned decks integrate shock absorption but some models also have patented systems to further reduce high impact forces.

Belt Size

Larger belt surfaces 20” wide x 60”+ long enhance HIIT comfort, especially for taller runners. Narrow cramped belts limit training.

Fans and Extras

Integrated accessory fans, device holders and sound systems make intense HIIT training more enjoyable and convenient.


Look for strong warranty coverage due to the high motor demands of HIIT – ideally lifetime motor and minimum 1-3 years parts/electronics.

Frequently Asked Questions About HIIT Treadmills

What speeds and inclines are needed?

For HIIT running, look for at least 0-12 MPH speed range and -3% to 15% incline range to allow for sufficient intensity variation.

What motors are best for HIIT and running?

3.0+ CHP motors are recommended for HIIT, ideally 3.5+ CHP for a robust commercial grade motor that can handle repeated intensity bursts.

How does deck cushioning help?

Quality cushioning like Celliant or FlexSelect decks absorb shock impact on joints and muscles during HIIT sprints and intervals.

What safety features are most important?

Handrails, lanyard stop buttons, and auto-pause functions prevent falls and injuries. Weight capacities of 300+ lbs. enhance stability.

What extra workout features are useful?

Fans, device holders, sound systems and accessory trays make HIIT treadmill training more functional and comfortable.

How important is belt size?

Larger belt surfaces around 20” x 60” optimize training room, speed adjustment, and shock absorption for safer, more comfortable HIIT sessions.

What display features should I look for?

Easy-to-navigate touchscreens clearly show HIIT workout tracking like intervals, speed, incline, heart rate, distance, pace and calories burned.

How accurate is calorie/heart rate tracking?

Treadmill estimators provide reasonable accuracy but consider additionally wearing a fitness tracker for heart rate precision during intervals.

How durable are HIIT treadmills?

Quality motors and parts allow daily HIIT when maintained properly. Lifetime warranties on motors give peace of mind for high intensity demands.

Are HIIT treadmills worth the price?

Top HIIT treadmills represent significant investment but deliver exceptional training capabilities, durability and features to match the price.

Recommendation for a Top Interval Training Treadmill

The NordicTrack Commercial 2950 stands out as a top interval training treadmill choice. With its robust 4.25 CHP motor, -3% decline capability, integrated HIIT programs, and FlexSelect Deck cushioning, this model is purpose-built for optimizing high intensity training.

Investing in a high performance, durable interval training treadmill ensures you can push your running workouts to the next level safely and comfortably. Use the key factors covered to select the perfect HIIT treadmill for your home gym.