I don't know who has a Garmin Watch, but anyone with the “strength” tracking ability on their watch should know there's now a heat map for muscles you work each session! Here's
All Garmin runs on one map | Technically Rural
Strength training heat map appeared in recent update. Might convince me to use the strength activity a little more seriously. : r/Garmin
5 Garmin Connect features every athlete should be using, according to the experts | TechRadar
GitHub - musings-hub/garmin-fit-to-heatmap-js: Script to conver Garmin FIT files to Google heatmaps javascript.
Garmin | IAN CORLESS
Garmin introduces Green Contour data to the Garmin Golf app.