{"entity":{"id":"met-hours","kind":"term","name":"MET-hours per week","aka":["Metabolic equivalent of task","Exercise dose"],"tldr":"The unit used to measure how much exercise someone does. One MET is the energy of sitting quietly; brisk walking is about 4 METs, so 45 minutes of brisk walking is 3 MET-hours. Guidelines aim for around 10 MET-hours a week.","summary":"MET-hours per week integrate intensity and duration and allow dose-response analysis across cohorts and trials. Observational studies in colon and breast cancer survivors show 40-50% lower mortality above roughly 18 MET-hours/week versus under 3; the CHALLENGE trial targeted an increase of 10 MET-hours/week over baseline, achieved with three to four brisk walks. The measure is self-reported in most studies, which accelerometry and wearables are replacing.","asOf":"2026-09-08","wikipedia":"https://en.wikipedia.org/wiki/Metabolic_equivalent_of_task","links":[{"label":"Wikipedia","url":"https://en.wikipedia.org/wiki/Metabolic_equivalent_of_task"}],"tags":[],"related":["idea-nl-exercise-dose-finding"],"cancers":[],"sections":[],"technologies":["structured-exercise-survivorship","exercise-during-chemotherapy","exercise-oncology"],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":["energy-balance"],"trials":["challenge"],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"category":"Nutrition & lifestyle"},"route":"/terms/met-hours/","neighbours":{"idea":[{"id":"idea-nl-exercise-dose-finding","kind":"idea","name":"A dose-finding trial for exercise after cancer","route":"/ideas/idea-nl-exercise-dose-finding/"}],"technology":[{"id":"exercise-oncology","kind":"technology","name":"Exercise & lifestyle oncology","route":"/technologies/exercise-oncology/"},{"id":"exercise-during-chemotherapy","kind":"technology","name":"Exercise during chemotherapy and radiotherapy","route":"/technologies/exercise-during-chemotherapy/"},{"id":"structured-exercise-survivorship","kind":"technology","name":"Structured exercise programmes after curative treatment","route":"/technologies/structured-exercise-survivorship/"},{"id":"exercise-prescription-after-cancer","kind":"technology","name":"The exercise prescription after cancer: the dose the guidelines state","route":"/technologies/exercise-prescription-after-cancer/"}],"term":[{"id":"energy-balance","kind":"term","name":"Energy balance","route":"/terms/energy-balance/"}],"trial":[{"id":"challenge","kind":"trial","name":"CHALLENGE (CCTG CO.21)","route":"/trials/challenge/"}]}}