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Strength Benchmark API

Benchmark total and lift-specific strength relative to body weight with progression-oriented guidance.

Endpoint

  • GET /api/v1/fitness/strength-benchmark
  • POST /api/v1/fitness/strength-benchmark/post

Parameters

Name Type Required In Description
gender string Yes Query/Body male or female.
weight number (35-300) Yes Query/Body Body weight in kg.
squat_1rm number (20-450) Yes Query/Body Squat 1RM in kg.
bench_1rm number (15-350) Yes Query/Body Bench 1RM in kg.
deadlift_1rm number (30-500) Yes Query/Body Deadlift 1RM in kg.
lang string No Query Response language (en,es,de,fr,pt,ja,hi,ar).

Why Use This Endpoint

  • Standardize strength classification for coaching products.
  • Identify weakest-link lifts for targeted progression.
  • Add confidence and development guidance to strength reporting.

Get Started

Request Example

curl -X GET "https://api.hefitapi.com/api/v1/fitness/strength-benchmark?gender=male&weight=82&squat_1rm=150&bench_1rm=105&deadlift_1rm=195&lang=en" \
  -H "X-API-Key: YOUR_API_KEY"

curl -X POST "https://api.hefitapi.com/api/v1/fitness/strength-benchmark/post?lang=en" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{"gender":"female","weight":64,"squat_1rm":102,"bench_1rm":58,"deadlift_1rm":128}'

Response Example

Info

The response example below is for demonstration purposes only. Make a live request to this endpoint to receive the full, real-time, and potentially richer JSON structure.

{
  "gender": "male",
  "bodyweight_kg": 82.0,
  "one_rep_max_kg": {"squat_1rm": 150.0, "bench_1rm": 105.0, "deadlift_1rm": 195.0, "total_1rm": 450.0},
  "relative_strength_ratios": {"squat_to_bw": 1.83, "bench_to_bw": 1.28, "deadlift_to_bw": 2.38, "total_to_bw": 5.49},
  "classification_level": "advanced",
  "classification_label": "Advanced",
  "lift_classification": {
    "squat": {"level": "advanced", "label": "Advanced"},
    "bench": {"level": "advanced", "label": "Advanced"},
    "deadlift": {"level": "elite", "label": "Elite"}
  },
  "weakest_link_focus": {"lift": "bench", "label": "Bench", "guidance": "Prioritize bench-focused volume and technique quality."},
  "strength_balance_index": 88,
  "confidence": {"level": "high", "label": "High"},
  "development_guidance": ["Use progressive overload with weak-link emphasis"],
  "summary": "Advanced total profile with clear bench-focused upside.",
  "language": "en",
  "_enterprise": {"client": "Acme Health", "plan": "pro", "request_id": "f8910571e304d536", "quota": 120, "usage_tracking": true},
  "_api_metadata_": {"endpoint_name": "fitness_strength_benchmark", "response_language": "en"}
}

Product Positioning

Perfect for strength apps, athlete portals, and enterprise performance coaching platforms.

Note

Input 1RM values outside validated ranges return HTTP 400.