LEFS Lower Extremity Functional Scale

Calculate the Lower Extremity Functional Scale (LEFS) for hip, knee, ankle, and foot conditions. 20 items scored 0-4 each. Total 0-80; higher = better. MCID = 9 points. Used for physiotherapy, post-surgical, and sports injury rehabilitation tracking.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
Advertisement

How to Use

Enter the values for the scenario you are assessing. Calculate the Lower Extremity Functional Scale (LEFS) for hip, knee, ankle, and foot conditions. 20 items scored 0-4 each. Total 0-80; higher = better. MCID = 9 points. Used for physiotherapy, post-surgical, and sports injury rehabilitation tracking. Use the lefs lower extremity result to inform your calculation.

Related Calculators

KOOS Knee Score

Hyper-niche Medical

HOOS Hip Score

Hyper-niche Medical

FAAM Foot Ankle

Hyper-niche Medical

Frequently Asked Questions