How do I add a workout to Garmin Connect without a watch?

Configure the sport, duration and intensity in FIT Generator, download the generated .fit file and import it into Garmin Connect via Import Data. The file contains per-second heart rate records, calories, Training Effect, TSS and time in zones.

How is maximum heart rate estimated?

Without a measured value, HRmax is estimated from age using the Tanaka formula (208 minus 0.7 times age). For women the Gulati formula (206 minus 0.88 times age) is used, which was validated on over 5000 women. A self-measured value always takes precedence.

Does the generated FIT file work with Amazfit Zepp?

Yes. Zepp reads the per-second heart rate records, so PAI accumulates correctly and Training Effect is displayed. Zepp's own training load score is only calculated for native device recordings, which is a platform limitation.

Is my data uploaded anywhere?

No. The heart rate simulation, all metric calculations and the FIT file encoding run entirely in your browser. Nothing is sent to a server and no account is required.

Logging wrestling training without a heart rate monitor

Typical effort: 85–95 % of maximum heart rate (Barbas 2011; Nilsson 2002). Generate a complete .fit file for a session you could not record.

Why the band comes off

Wrestling is the classic case for a missing workout. Grip fighting, underhooks and mat contact make a wrist strap a liability — it gets torn off, it digs into your partner, and most clubs and rulesets do not allow hard objects on the wrist during live wrestling.

What heart rate to expect

Studies on elite Greco-Roman and freestyle wrestlers report 85–95 % of maximum heart rate during live bouts, with lactate values among the highest measured in any sport. The pattern is chaotic rather than rhythmic: repeated isometric grip exchanges drive heart rate up faster than oxygen uptake alone would explain, and recovery between scrambles is incomplete.

Effort heart rate	85–95 % of HRmax
Source	Barbas 2011; Nilsson 2002
Load pattern	See methodology table

Typical session structure

A typical 90-minute session is roughly 10 min warm-up, 15 min technique, 10 min drilling and then 5 rounds of live wrestling. Because only the live rounds sit near maximum, the session average lands far below the bout figure — around 65–70 % of maximum heart rate.

How to log it

Open the generator and select Wrestling.
Enter your age, resting heart rate and fitness level.
Choose a preset or build the session block by block.
Generate — the .fit file is created immediately.
Import it into Garmin Connect, Strava or Zepp.

Everything runs in your browser. No account, no upload, no data leaves your device.

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