3 61 Normative Calf Muscle Strength-Endurance Values: An International Study Supplementary Table 5. Estimates (95%CI, p-value) of the effect of the parameters on the different HRET metrics for the secondary outcome measures, derived from the multiple quantile regression analysis adjusted for age, height (cm), mass, BMI, sex and physical activity level (PAL). An example on how to employ the normative equations based on two fictional patients is provided in the lower part of the table. Parameter Peak power Intercept -175.5 (-337.9, -13.1) Age -0.69 (-1.1, -0.28) Height 1.7 (0.69, 2.6) BMI XX Mass 2.4 (1.8, 2.9) Sex -17.8 (-35.0, -0.5) PAL 2 -64.6 (-121.7, -7.6) PAL 3 -2.5 (-25.1, 20.1) PAL 4 -2.5 (-21.2, 16.2) PAL 5 -4.8 (-20.8, 11.2) Normative equation* Intercept + age + height + BMI + sex + PAL Example A Female, 53 years, 29 kg/m2, 165 cm, 79 kg, PAL 3 Example B Male, 25 years, 21 kg/m2, 184 cm, 71 kg, PAL 5 Peak Power** -175.5 – 0.69 x (age) + 1.7 x (height) + 2.4 x (weight) – 17.8 x (sex) + PAL A: 232.1 (146.1-302.9) W -175.5 – 0.69 x (53) + 1.7 x (165) + 2.4 x (79) – 23.4 x (1) – 2.5 B: 285.7 (175.0-485.3) W -175.5 – 0.69 x (25) + 1.7 x (184) + 2.4 x (71) – 23.4 x (0) – 4.8 * Sex: male = 0, female = 1, PAL 6= 0 ** Values are median (mm) with 95% RI (2.5th percentile, 97.5th percentile) Abbreviations; BMI: Body Mass Index
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