HIIT 4x4 12+
Interval Training Meter
Eastridge Technology
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- 29,99 lei
Screenshots
Description
HIIT 4x4 is an Apple Watch exercise monitoring app for High Intensity Interval Training (HIIT). The app sequences exercise between high and low intensity intervals. The intensity of the exercise is measured as a percentage of a person's Maximum Heart Rate (MHR).
The HIIT 4x4 intervals are as follows:
- 10 minutes warmup at 60% MHR
- 4 minutes high intensity at 90% MHR
- 3 minutes low intensity at 70% MHR
- repeat high-low intervals 4 times (4 high intensity intervals of 4 minutes each = 4x4).
HIIT 4x4 uses a speedometer type dial to display heart rate. When the arrow is in the green zone then your heart rate is within the interval target. If the heart rate later falls out of the target range, warning chimes are issued until back in range.
Each person's MHR is different, and changes with age. A commonly used formula for MHR is 220 - age in years. A more accurate number can be discovered by using a heart monitor during all out exercise and observing the highest heart rate achieved.
HIIT 4x4 stores your workout history using Apple Health.
HIIT 4x4 is based on the High Intensity Interval Training 4x4 program developed by the Norwegian University of Science and Technology's Cardiac Exercise Group.
What’s New
Version 1.08
Start button moved to Settings screen to streamline operation.
App Privacy
The developer, Eastridge Technology, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
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Eastridge Technology has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- DUNS Number
- 966755589
- Address
- 6 Highland Road Princeton New Jersey 08540 United States
- Phone Number
- +1 6097591180
- info@e-t.com
- Size
- 18.5 MB
- Category
- Health & Fitness
- Compatibility
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- iPhone
- Requires iOS 12.0 or later.
- iPod touch
- Requires iOS 12.0 or later.
- Apple Watch
- Requires watchOS 5.0 or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
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English
- Age Rating
- 12+ Infrequent/Mild Medical/Treatment Information
- Copyright
- © 2025 Eastridge Technology
- Price
- 29,99 lei
Supports
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Family Sharing
Up to six family members can use this app with Family Sharing enabled.