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About this tool
Check whether your walk counts as brisk using cadence, heart-rate zones, the talk test and Borg RPE together.
Brisk Walk Intensity Checker scores a walk against the four field measures of exercise intensity used in physical-activity research: cadence, heart rate, the talk test and Borg perceived exertion. Cadence is judged against the 100 and 130 steps-per-minute thresholds, heart rate against Karvonen or percent-of-maximum zones built on the Tanaka formula HRmax = 208 − 0.7 × age, and the verdict is the median of whichever readings you supply. It is for walkers who want to know if their daily walk really counts toward the 150-minutes-a-week guideline.
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Takes the median of cadence, heart rate, talk test and RPE so a single odd reading cannot skew it.
Uses Tanaka's 208 − 0.7 × age rather than the older, less accurate 220 − age.
Shows exactly how many steps per minute or beats per minute short of moderate you are.
The simplest check is cadence: 100 steps per minute or more is the accepted moderate-intensity threshold for adults, roughly 3 METs. The talk test agrees when you can hold a conversation but cannot comfortably sing.
About 64 to 76 percent of your maximum heart rate. For a 40-year-old with an estimated maximum of 180 bpm that is roughly 115 to 137 bpm, or 111 to 133 bpm if a resting rate of 65 is used with the heart-rate reserve method.
A no-equipment intensity check: if you can sing, the effort is light; if you can talk but not sing, it is moderate; if you can only get out a few words before needing a breath, it is vigorous. It tracks the ventilatory threshold closely enough to be recommended by ACSM.
It is the best-known formula but it under-estimates maximum heart rate in older adults. Tanaka's 208 − 0.7 × age fits population data better, though individual maximums still vary by around 10 bpm either way. Anyone with a heart condition or on rate-limiting medication should get targets from a clinician rather than a formula.