from math import floor import sys from body_scales import bodyScales class bodyMetrics: def __init__(self, weight, height, age, sex, impedance): self.weight = weight self.height = height self.age = age self.sex = sex self.impedance = impedance self.scales = bodyScales(age, height, sex, weight) # Check for potential out of boundaries if self.height > 220: print("Height is too high (limit: >220cm) or scale is sleeping") sys.stderr.write('Height is over 220cm\n') exit() elif weight < 10 or weight > 200: print("Weight is either too low or too high (limits: <10kg and >200kg)") sys.stderr.write('Weight is below 10kg or above 200kg\n') exit() elif age > 99: print("Age is too high (limit >99 years)") sys.stderr.write('Age is above 99 years\n') exit() elif impedance > 3000: print("Impedance is above 3000 Ohm") sys.stderr.write('Impedance is above 3000 Ohm\n') exit() # Set the value to a boundary if it overflows def checkValueOverflow(self, value, minimum, maximum): if value < minimum: return minimum elif value > maximum: return maximum else: return value # Get LBM coefficient (with impedance) def getLBMCoefficient(self): lbm = (self.height * 9.058 / 100) * (self.height / 100) lbm += self.weight * 0.32 + 12.226 lbm -= self.impedance * 0.0068 lbm -= self.age * 0.0542 return lbm # Get BMR def getBMR(self): if self.sex == 'female': bmr = 864.6 + self.weight * 10.2036 bmr -= self.height * 0.39336 bmr -= self.age * 6.204 else: bmr = 877.8 + self.weight * 14.916 bmr -= self.height * 0.726 bmr -= self.age * 8.976 # Capping if self.sex == 'female' and bmr > 2996: bmr = 5000 elif self.sex == 'male' and bmr > 2322: bmr = 5000 return self.checkValueOverflow(bmr, 500, 10000) # Get fat percentage def getFatPercentage(self): # Set a constant to remove from LBM if self.sex == 'female' and self.age <= 49: const = 9.25 elif self.sex == 'female' and self.age > 49: const = 7.25 else: const = 0.8 # Calculate body fat percentage LBM = self.getLBMCoefficient() if self.sex == 'male' and self.weight < 61: coefficient = 0.98 elif self.sex == 'female' and self.weight > 60: coefficient = 0.96 if self.height > 160: coefficient *= 1.03 elif self.sex == 'female' and self.weight < 50: coefficient = 1.02 if self.height > 160: coefficient *= 1.03 else: coefficient = 1.0 fatPercentage = (1.0 - (((LBM - const) * coefficient) / self.weight)) * 100 # Capping body fat percentage if fatPercentage > 63: fatPercentage = 75 return self.checkValueOverflow(fatPercentage, 5, 75) # Get water percentage def getWaterPercentage(self): waterPercentage = (100 - self.getFatPercentage()) * 0.7 if (waterPercentage <= 50): coefficient = 1.02 else: coefficient = 0.98 # Capping water percentage if waterPercentage * coefficient >= 65: waterPercentage = 75 return self.checkValueOverflow(waterPercentage * coefficient, 35, 75) # Get bone mass def getBoneMass(self): if self.sex == 'female': base = 0.245691014 else: base = 0.18016894 boneMass = (base - (self.getLBMCoefficient() * 0.05158)) * -1 if boneMass > 2.2: boneMass += 0.1 else: boneMass -= 0.1 # Capping boneMass if self.sex == 'female' and boneMass > 5.1: boneMass = 8 elif self.sex == 'male' and boneMass > 5.2: boneMass = 8 return self.checkValueOverflow(boneMass, 0.5 , 8) # Get muscle mass def getMuscleMass(self): muscleMass = self.weight - ((self.getFatPercentage() * 0.01) * self.weight) - self.getBoneMass() # Capping muscle mass if self.sex == 'female' and muscleMass >= 84: muscleMass = 120 elif self.sex == 'male' and muscleMass >= 93.5: muscleMass = 120 return self.checkValueOverflow(muscleMass, 10 ,120) # Get Visceral Fat def getVisceralFat(self): if self.sex == 'female': if self.weight > (13 - (self.height * 0.5)) * -1: subsubcalc = ((self.height * 1.45) + (self.height * 0.1158) * self.height) - 120 subcalc = self.weight * 500 / subsubcalc vfal = (subcalc - 6) + (self.age * 0.07) else: subcalc = 0.691 + (self.height * -0.0024) + (self.height * -0.0024) vfal = (((self.height * 0.027) - (subcalc * self.weight)) * -1) + (self.age * 0.07) - self.age else: if self.height < self.weight * 1.6: subcalc = ((self.height * 0.4) - (self.height * (self.height * 0.0826))) * -1 vfal = ((self.weight * 305) / (subcalc + 48)) - 2.9 + (self.age * 0.15) else: subcalc = 0.765 + self.height * -0.0015 vfal = (((self.height * 0.143) - (self.weight * subcalc)) * -1) + (self.age * 0.15) - 5.0 return self.checkValueOverflow(vfal, 1 ,50) # Get BMI def getBMI(self): return self.checkValueOverflow(self.weight/((self.height/100)*(self.height/100)), 10, 90) # Get ideal weight (just doing a reverse BMI, should be something better) def getIdealWeight(self, orig=True): # Uses mi fit algorithm (or holtek's one) if orig and self.sex == 'female': return (self.height - 70) * 0.6 elif orig and self.sex == 'male': return (self.height - 80) * 0.7 else: return self.checkValueOverflow((22*self.height)*self.height/10000, 5.5, 198) # Get fat mass to ideal (guessing mi fit formula) def getFatMassToIdeal(self): mass = (self.weight * (self.getFatPercentage() / 100)) - (self.weight * (self.scales.getFatPercentageScale()[2] / 100)) if mass < 0: return {'type': 'to_gain', 'mass': mass*-1} else: return {'type': 'to_lose', 'mass': mass} # Get protetin percentage (warn: guessed formula) def getProteinPercentage(self, orig=True): # Use original algorithm from mi fit (or legacy guess one) if orig: proteinPercentage = (self.getMuscleMass() / self.weight) * 100 proteinPercentage -= self.getWaterPercentage() else: proteinPercentage = 100 - (floor(self.getFatPercentage() * 100) / 100) proteinPercentage -= floor(self.getWaterPercentage() * 100) / 100 proteinPercentage -= floor((self.getBoneMass()/self.weight*100) * 100) / 100 return self.checkValueOverflow(proteinPercentage, 5, 32) # Get body type (out of nine possible) def getBodyType(self): if self.getFatPercentage() > self.scales.getFatPercentageScale()[2]: factor = 0 elif self.getFatPercentage() < self.scales.getFatPercentageScale()[1]: factor = 2 else: factor = 1 if self.getMuscleMass() > self.scales.getMuscleMassScale()[1]: return 2 + (factor * 3) elif self.getMuscleMass() < self.scales.getMuscleMassScale()[0]: return (factor * 3) else: return 1 + (factor * 3) # Get Metabolic Age def getMetabolicAge(self): if self.sex == 'female': metabolicAge = (self.height * -1.1165) + (self.weight * 1.5784) + (self.age * 0.4615) + (self.impedance * 0.0415) + 83.2548 else: metabolicAge = (self.height * -0.7471) + (self.weight * 0.9161) + (self.age * 0.4184) + (self.impedance * 0.0517) + 54.2267 return self.checkValueOverflow(metabolicAge, 15, 80)