Perceived Load; Muscle Load (Via Third-Party Power Sensor); Training Load From A Single Session - Polar Electro Vantage M User Manual

Perceived Load

Your subjective feeling is one useful method of estimating training load for all sports. The Perceived
Load is a value that takes into account your own subjective experience of how demanding your training
session was and the duration of your session. It's is quantified with Rate of Perceived Exertion (RPE),
a scientifically accepted method to quantify subjective training load. Using the RPE scale is especially use-
ful for sports where measuring training load based on heart rate alone has its limitations, for example
strength training.
Rate your session in the Flow mobile app to get your Perceived Load for the session. You can choose
from a scale from 1-10, in which 1 is very, very easy and 10 is maximum effort.

Muscle Load (via third-party power sensor)

Muscle Load tells you how much your muscles were strained during your training session. Muscle Load
helps you quantify your training load in high-intensity training sessions, such as short intervals, sprints
and hill sessions, when your heart rate doesn't have enough time to react to the changes in the intensity.
Muscle load shows the amount of mechanical energy (kJ) that you produced during a running or cycling
session. This reflects your energy output, not the energy input it took you to produce that effort. In gen-
eral, the fitter you are, the better the efficiency between your energy input and output. Muscle load is cal-
culated based on power and duration. In case of running, also your weight counts.
Muscle Load is calculated from your power data, so you only get a Muscle Load value for your running
workouts and cycling sessions if you're using a separate

TRAINING LOAD FROM A SINGLE SESSION

Your Training Load from a single session is shown in the summary of your training session on your
watch, in the Flow app and in the Flow web service.
You'll get an absolute training load number for each measured load. The higher the load, the more strain
it caused to your body. In addition, you can see a visual bullet scale interpretation and a verbal descrip-
tion of how hard your training load from the session was compared to your 90 days training load aver-
age.
running or cycling power
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sensor.