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Trackmaster TMX428 Medical Treadmill

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The Trackmaster® TMX428 heavyduty, medical treadmill is specifically designed to be interfaced with and controlled by a wide variety of Cardiac and Pulmonary Stress Testing Systems. Made in America since 1983, Trackmaster ® is manufactured under a Quality Management System registered to ISO 13485 and complies with worldwide regulatory requirements. Tens of thousands are in daily use.
Trackmaster TMX428
The easy to locate and easy to use emergency stop button can be installed on left or right treadmill handrails. For additional safety, a tether worn on the patient’s wrist stops the treadmill when pulled.
Trackmaster TMX428
Shown with optional fully programmable controller For those applications requiring occasional independent control of the treadmill (not using the stress testing computer), the TMX428CP is the ideal choice with an easy to use, programmable controller that can be operated in manual mode
Trackmaster TMX428 Medical Treadmill
Patented MasterTrack ® Belt Alignment System Trackmaster’s 22″ (56 cm) running belt is the widest in the industry, which provides confidence to the user. MasterTrack ® is a patented v-guide on the underside of the running belt, which matches grooves in the running deck and rollers. This prevents any lateral movement of the belt and eliminates belt alignment issues. In addition, the deck is mounted on shock absorbing isolators to minimize impact stress.
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TMX428 brochure 10-13-new
With more user-preferred features than other stress testing treadmills, the Trackmaster ® has a proven and dependable design including:

  • Smooth, quiet, zero-start, 4 HP (6 HP peak) hi-torque drive.
  • Smooth, quiet linear actuator elevation system.
  • Low-to-the floor, cushioned deck for patient comfort and safety.
  • 22″x 63” (56 cm x 160 cm) running belt and safety handrails.
  • Patented MasterTrack ® belt alignment system eliminates off-center running belts.
  • Exceptionally accurate, selfcalibrating speed and elevation.
  • Prominent emergency stop button and patient safety tether.
  • Minimum maintenance.
The TMX428CP can be operated in diagnostic mode (interfaced with a stress computer) or non-interfaced, independent mode. When the interface is active, only the emergency stop buttons on the controller are enabled. Once the computer program is closed, the controller reverts to full functionality. The controller can be operated manually and also has 5 preprogrammed stress protocols (Bruce, Gerkin, Naughton, Balke- M, Balke-F) and 5 preprogrammed fitness workouts. Additionally, there are 5 user defined, custom programs with 10 stages each.

In manual mode, the large, bright display shows Speed, Pace, Elapsed Time, Elevation, Distance, Calories, METS, Heart Rate and Target Heart Rate (user defined). Calculations are determined by ACSM formulas based on user weight, age and gender.

In pre-programmed or user programmable mode, the display will prompt the user to enter required data and will graphically display progress in the mode selected. If fitness or user defined modes are selected, elevation and speed can be adjusted when in use; the stress protocols cannot be adjusted.

Displays include:

  • Protocol/workout name
  • Stage number
  • Stage time countdown
  • Speed (mph/kph)
  • Pace (minutes/mile or km)
  • Distance (miles or km)
  • METS, total calories
  • Elevation
  • Body weight, age, gender input
  • Elapsed time

Message center:

  • Displays customized information
  • Prompts unfamiliar users
  • Quick programming inputs
  • Diagnostic log, hour meter

Additional Features:

  • Two built-in accessory holders
  • 5 preprogrammed medical protocols
  • 5 preprogrammed fitness workouts
  • 5 user programmable workouts, 10 stages each
  • Dual stop switches and safety tether
  • Calories/METS based on user weight, age, gender
  • Quick start, speed, elevation commands
  • Cool down command

Frequently Asked Questions

1. What is the Trackmaster TMX428 Medical Treadmill used for?

The Trackmaster TMX428 Medical Treadmill is designed for cardiac stress testing, cardiopulmonary exercise testing (CPET), VO₂ max testing, pulmonary diagnostics, rehabilitation, and exercise physiology research. It provides accurate speed and incline control for reliable clinical and research evaluations.

2. Is the Trackmaster TMX428 compatible with stress ECG and metabolic cart systems?

Yes. The TMX428 is specifically engineered to integrate with a wide range of stress ECG systems, metabolic carts, pulmonary function testing equipment, and cardiopulmonary exercise testing (CPET) systems, making it ideal for clinical and research laboratories.

3. What safety features are included with the Trackmaster TMX428?

The TMX428 includes an easy-to-access emergency stop button, a patient safety tether that immediately stops the treadmill if activated, low deck height for easier access, safety handrails, and a cushioned running surface to enhance patient safety during exercise testing.

4. What is the MasterTrack® Belt Alignment System?

The patented MasterTrack® Belt Alignment System keeps the running belt properly centered during operation, reducing maintenance requirements, preventing belt drift, and ensuring smooth, reliable performance over years of continuous use.

5. What are the benefits of the 22-inch running surface?

The TMX428 features one of the industry’s widest 22-inch (56 cm) running belts, providing greater stability, comfort, and confidence for patients during walking, jogging, and high-intensity exercise testing.

6. Can the Trackmaster TMX428 operate without a stress testing system?

Yes. With the optional TMX428CP Programmable Controller, the treadmill can operate independently in manual mode, allowing clinicians and researchers to perform exercise sessions without connecting to a stress testing computer.

7. What types of facilities use the Trackmaster TMX428?

The TMX428 is widely used in hospitals, cardiology clinics, pulmonary laboratories, rehabilitation centers, universities, sports performance facilities, and exercise physiology research laboratories around the world.

8. Does the Trackmaster TMX428 require frequent maintenance?

No. The TMX428 is built for long-term reliability with a self-calibrating speed and elevation system, patented belt alignment technology, and a heavy-duty design that minimizes routine maintenance while delivering dependable performance.

9. Why is accurate treadmill performance important during exercise testing?

Accurate speed and incline control are essential for standardized exercise protocols used in CPET, cardiac stress testing, VO₂ max testing, and clinical research. Consistent treadmill performance helps ensure reliable, repeatable test results.

10. Why choose the Trackmaster TMX428 Medical Treadmill from AEI Technologies?

The Trackmaster TMX428 combines medical-grade durability, advanced safety features, precise performance, seamless integration with cardiopulmonary testing systems, and proven reliability. Supported by AEI Technologies‘ expertise, it is an excellent choice for hospitals, research laboratories, and sports medicine facilities.