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Running Dynamic Pod vs. HRM-Pro with Forerunner 945

crazymelki
over 4 years ago

Hi there

In the past, I only used the Running Dynamic Pod while running with my Garmin Edge Forerunner 945. I always had a very good balance of ground contact time. I've bought the HRM-Pro chest strap for a few weeks now and noticed that my values are bad. That means in the ratio 52/48. I then completed the same routes with the same shoes, each with the Running Dynamic Pod and the HRM-Pro, and I don't get the same results. Has anyone had the same experience and which data should I now believe?

Or did I miss a calibration function?

Software on the HRM-Pro is on 7.1

Running Dynamic Pods records:

HRM-PRO records:

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  • 0 over 4 years ago

    I wonder how much the placement of the Running Dynamic Pod affects the measurement and also if the movement of the clothes has any effect.

    The chest strap sensor is easily placed right in the center of the body and will not move around. Due to that I will trust the HRM-Pro over the Pod.

  • 0 over 4 years ago in reply to e7andy

    To verifiy that, I could attach the Pod on the chest strap sensor. But I hope, that the data form the Pod are accurate.

  • 0 over 4 years ago
    crazymelki said:
    Has anyone had the same experience

    Yes. I have the HRM-Tri chest strap and the RD pod. Both give very different results, no matter how much attention I pay to placing them correctly.

    crazymelki said:
    which data should I now believe?

    Neither.

  • 0 over 4 years ago

    I think my Tri has the same problem on the first few runs.

    Try monitoring the next few runs.

  • 0 over 4 years ago

    How does the instant step with RDP and HMR work for you? The Italian support wrote me that it must work even without a foot pod, to me with RDP it does not seem very precise

  • 0 over 4 years ago in reply to Luca
    Luca said:
    How does the instant step with RDP and HMR work for you?

    What do you mean by instant step? Cadence? Yes, it works well without a footpod.

  • 0 over 4 years ago in reply to tmk2

    Not the cadence that works, the pace I mean the speed minutes per kilometer. Sorry but I'm Italian and I can't write English well.

  • 0 over 4 years ago in reply to Luca

    The RD pod does not provide pace. If Italian support claims otherwise, then they are clearly wrong. If you don't have a footpod, then instant pace comes from GPS.

  • 0 over 4 years ago in reply to tmk2

    Thanks for the answer, I also imagined the same thing but I asked Garmin anyway hoping they knew, the Italian support serves as a heater in the Sahara

  • 0 over 3 years ago

    Hello,

    I am also wondering how to correct the gap displayed between Left/Right GCT displayed by my HRM-PRO (Software 7.4 with 945 Beta software 8.02). I also noticed like above that at the very beginning of an activity the gap is high. I wear my watch on the left wrist and my right foot (stronger) seems to have a higher GCT. By adapting my stride during footings, I consciously manage to balance the result by pulling the left leg further back.... But I am not convinced the overall stride is more symetrical.

    It would be interesting to know how the algorithm works, if arms movements are considered, and if for example looking at the gauge on the watch during the activity has an influence on the result.

    Any explaination would be welcome in order to understand and try to improve this metric.