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Aerobic Decoupling API

Calculate cardiovascular drift from workout halves to assess aerobic durability and pacing quality.

Endpoint

  • GET /api/v1/fitness/aerobic-decoupling
  • POST /api/v1/fitness/aerobic-decoupling/post

Parameters

Name Type Required In Description
first_half_avg_hr number Yes Query/Body Average heart rate in the first half.
second_half_avg_hr number Yes Query/Body Average heart rate in the second half.
first_half_avg_power number Yes Query/Body Average power or pace metric in the first half.
second_half_avg_power number Yes Query/Body Average power or pace metric in the second half.
lang string No Query Response language (en,fr,es,de,pt,ja,hi,ar,bn,gu,id,it,ko,mr,nl,pa,pl,ro,ru,ta,te,th,tr,ur,vi,zh).

Request Example

curl -X GET "https://api.hefitapi.com/api/v1/fitness/aerobic-decoupling?first_half_avg_hr=145&second_half_avg_hr=154&first_half_avg_power=220&second_half_avg_power=215&lang=en" \
  -H "X-API-Key: YOUR_API_KEY"

Response Example

{
  "first_half_ratio": 0.6591,
  "second_half_ratio": 0.7163,
  "decoupling_percent": 8.69,
  "efficiency_band": "normal",
  "efficiency_band_label": "Normal aerobic decoupling",
  "summary": "Decoupling is within a normal training range.",
  "recommendations": [],
  "language": "en",
  "_api_metadata_": {"endpoint_name": "aerobic_decoupling", "response_language": "en"}
}

Localization

This endpoint reads health_fitness_aerobic_decoupling.json from the supported language catalogs.