It's more fun to be out and exercise, but when the body is sick the brain work. Sometimes it's incredibly fun to imagine and create the things I have done a Data Field app called Meter / beat or Meters per heartbeat in Swedish. In this post I will show what the Meter / beat app does. For more information about making apps to Garmin products (eg 920XT ), see my article on Garmin Connect IQ .
The power is a measure of how strong a motor is as defined energy / time unit (unit [Joules / second = Watts = W]). It is possible to measure the effect on a car engine with horsepower. It is also possible to measure the power of an athlete, but it's not as easy. On the bike's power meter (measuring power = force * distance / time). Measuring force is relatively difficult and power meters for bicycles is still expensive.
For swimming, running and other sports, it is not as easy to measure the athlete's power (since it does not go down in a rotating shaft of a machine).
Other interesting measure of how the efficiency / performance of an engine's fuel consumption (liters per km). An efficient engine is at the same speed (work) efficiency (better) than a wasteful engine. But what is the equivalent measure of an athlete?
Purpose of measuring meters per heartbeat
When I was doing my first app I was looking for a measurement that may be easier to produce than power (power [W]). I then thought of the relationship between speed and heart rate, which according to me is the solution. Given that no disturbance occurs (wind, temperature, different track profile, etc.) is the speed at a given pulse is a measure describing how effective an athlete's engine! The heart rate is usually measured in heartbeats per unit of time [bpm, beats per minute]. 60bpm is resting heart rate and 180bpm my maximum heart rate. Speed is defined as distance per time unit. => Distance per time / heartbeats per time = meters per heartbeat.
Meters per heartbeat is the athlete's equivalent to fuel consumption.
Is it good?
Help me with this in a comment!
- Meters per heartbeat can be used where there is GPS and heart rate monitor (eg sports swimming, running, biking or hiking)
- You can compare the performance and development of a sport
- You can compare the relative performance / performance development between different sports
- Cheaper than power / pulse
- Speed and heart rate are affected by weather conditions
Implementation of Garmin Connect IQ
Meters / beat - Meters per heartbeat is the earliest app in Garmin's app store. I made a Data Field can be used for this.
But it's expensive power meter on your bike. It is also very difficult to measure the impact when running / swimming / ...
"Speed / heart rate" = "distance / heartbeat" is a measure which, like a car's motor show effectiveness.
Of course, the speed depends also on the slope, wind, shape, type of passport ... but given that the disturbances are taking themselves out over time, an improvement made in this metric at the same type of activity. The measurement can be just as useful (and also more accessible than power / watt).