Tunturi J4F Folding Treadmill

Tunturi J4F Folding Treadmill
Item# J4F
Availability: Usually ships in 3-4 business days.

Tunturi J4F Folding Treadmill

Tunturi J4F Folding Treadmill
Heart rate controlled treadmill for effective training at home

The versatile console offers the constant heart rate control training and preset heart rate control workout profiles for the most effective exercise. The console also features an easy-read scrolling display, which guides the training progress. The Tunturi J4F treadmill has a fully shock absorbent running area and sporting handrails for a great running feeling and safe workout. The light folding mechanism is patented, and the treadmill is easy to move.


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  • Motor - 2.0 hp continuous duty
  • Folding - Yes
  • Functional and stylish Scandinavian design features large console with integrated reading rack and a place for water bottle etc...
  • Console - graphic profile display, scrolling information bar, time, distance, speed, energy consumption, elevation, heart rate
  • Exercise modes- manual training, heart rate control
  • Training profiles - 8 intensity/time scaleable pre-set profiles, scaling in 5%/5 min increments
  • Intelligent user interface offers manual mode, heart rate control, 4 preset HRC profiles, 4 pre set speed / elevation training programs
  • Speed - 0.6 - 10 mph
  • Elevation - 0-10%, 0,5 % steps
  • Running area - 17x51 inches
  • Motor - 2.0 hp continuous duty
  • Length - 73.5/*41.5 inches
  • Width - 29 inches
  • Height - 55/*65.5 inches
  • Weight - 198 lbs.
  • Maximum user weight - 245 lbs.
  • Heart rate measurement - Optional wireless heart rate measurement
  • Warranty: 10 Year motor
                   2 year parts
                   1 year labor

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Training modes
mean the different ways a training equipment can be set to control and maintain the training intensity. Using the different modes will make the training more versatile, motivating, and even more effective. Usually, the same modes can be used either in manual training in which you select the mode and then adjust the intensity manually during training, or in pre-set profiles in which the training equipment will control the changes of intensity partially or totally automatically.

In treadmills, Tunturi uses two training modes:

1. Manual training in which both speed and elevation are adjusted manually by the exerciser during training.
2. Heart rate controlled (HRC) training in which the heart rate level of the exerciser determines the training intensity. To cater for different preferences, Tunturi has advocated for three different HRC modes:

1. Speed = HRC takes place by changes of the belt speed.
2. Elevation = HRC takes place by changes of the elevation.
3. Combination = HRC takes place by changes of both the speed and elevation.

Heart rate measurement
The heart rate measurement is based on electrical impulses registered from the heart, whereas pulse meters measure peripheral circulation e.g. via an ear clip or a handgrip to calculate the pulse rate. If you use a heart rate controlled exercise program or if the heart rate value is of importance to you, Tunturi recommends using a transmitter belt for continuous heart rate measurement. Pulse measurement is in principle equally accurate, but functionally more limited and for some users unreliable way of measurement.

Wireless (Telemetric) Heart Rate Measurement

Tunturi recommends using the heart rate belt due to its superior reliability and accuracy. Most Tunturi fitness equipment have an inbuilt heart rate receiver for measuring heart rate wirelessly, i.e. telemetrically. When using telemetric measurement, moisten the electrodes carefully and attach the belt so that the electrodes are tightly against the skin. The belt transmits the heart rate signal to appr. 1 meter distance.

Warranty Information

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