Jenkins et al developed equations for predicting the six-minute walking distance (6MWD) in adults. The authors are from multiple institutions in Australia.
Patient selection: healthy Caucasian Australian from 45 to 85 years
Parameters:
(1) age in years
(2) gender
(3) body mass index (BMI) in kg per square meter
(4) height in centimeters
(5) peak heart rate in beats per minute
(6) percent of predicted heart rate based on age
(7) body mass index (BMI)
predicted maximum heart rate =
= 220 - (age in years)
percent of predicted maximum heart rate =
= (heart rate observed) / (predicted maximum)
First group:
predicted 6MWD for a male in meters =
= 867 - (5.71 * (age in years)) + (1.03 * (height))
predicted 6MWD for a female in meters =
= 525 - (2.86 * (age)) + (2.71 * (height)) - (6.22 * (BMI))
Second group:
predicted 6MWD for a male in meters =
= 748 - (6.32 * (age in years)) + (0.64 * (height)) + (2.69 * (percent predicted HR max))
predicted 6MWD for a female in meters =
= 541 - (3.81 * (age)) + (1.80 * (height)) - (6.92 * (BMI)) + (2.41 * (percent predicted HR max))
Third group:
predicted 6MWD for a male in meters =
= 1005 - (5.68 * (age in years)) + (0.89 * (height))
predicted 6MWD for a female in meters =
= 602 - (2.97 * (age)) + (2.05 * (height)) - (5.50 * (BMI))
Fourth group:
predicted 6MWD for a male in meters =
= 849 - (6.15 * (age in years)) + (0.22 * (height)) + (2.12 * (percent predicted HR max))
predicted 6MWD for a female in meters =
= 594 - (3.95 * (age)) + (1.09 * (height)) - (5.69 * (BMI)) + (2.69 * (percent predicted HR max))
