getfitcraft.com

{
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "sex": {
      "type": "string",
      "enum": [
        "male",
        "female"
      ],
      "description": "Biological sex; selects the sex-specific equation."
    },
    "method": {
      "type": "string",
      "enum": [
        "navy",
        "jackson_pollock_3",
        "jackson_pollock_7"
      ],
      "description": "navy (default) uses height, neck, waist and, for women, hip circumferences. jackson_pollock_3 uses age plus chest, abdomen, thigh (men) or triceps, suprailiac, thigh (women) skinfolds in mm. jackson_pollock_7 uses age plus all seven skinfolds in mm."
    },
    "unit": {
      "type": "string",
      "enum": [
        "in",
        "cm"
      ],
      "description": "Navy method only: unit for height and all circumferences. Defaults to in."
    },
    "height": {
      "type": "number",
      "description": "Navy method: height.",
      "minimum": 48,
      "maximum": 230
    },
    "neck": {
      "type": "number",
      "description": "Navy method: neck circumference.",
      "minimum": 8,
      "maximum": 80
    },
    "waist": {
      "type": "number",
      "description": "Navy method: waist circumference.",
      "minimum": 10,
      "maximum": 200
    },
    "hip": {
      "type": "number",
      "description": "Navy method: hip circumference, required for female estimates.",
      "minimum": 10,
      "maximum": 220
    },
    "age": {
      "type": "number",
      "description": "Skinfold methods: age in years.",
      "minimum": 13,
      "maximum": 100
    },
    "chest": {
      "type": "number",
      "description": "Skinfold in mm: diagonal fold between nipple and front of armpit.",
      "minimum": 2,
      "maximum": 80
    },
    "midaxillary": {
      "type": "number",
      "description": "Skinfold in mm (7-site): vertical fold on the side of the torso at the level of the bottom of the sternum.",
      "minimum": 2,
      "maximum": 80
    },
    "triceps": {
      "type": "number",
      "description": "Skinfold in mm: vertical fold on the back of the upper arm, midway between shoulder and elbow.",
      "minimum": 2,
      "maximum": 80
    },
    "subscapular": {
      "type": "number",
      "description": "Skinfold in mm (7-site): diagonal fold just below the lower tip of the shoulder blade.",
      "minimum": 2,
      "maximum": 80
    },
    "abdomen": {
      "type": "number",
      "description": "Skinfold in mm: vertical fold 2 cm to the right of the navel.",
      "minimum": 2,
      "maximum": 80
    },
    "suprailiac": {
      "type": "number",
      "description": "Skinfold in mm: diagonal fold just above the front of the iliac crest.",
      "minimum": 2,
      "maximum": 80
    },
    "thigh": {
      "type": "number",
      "description": "Skinfold in mm: vertical fold on the front of the thigh, midway between hip and knee.",
      "minimum": 2,
      "maximum": 80
    }
  },
  "required": [
    "sex"
  ]
}