Weekly Aerobic Volume Targets

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volumeweekly-minuteswhophysical-activity-guidelines150-300met-minutesdose

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DefinitionA short reference note, not a full lesson.

Definition

The headline dose from WHO and U.S. guidelines — 150–300 minutes of moderate, or 75–150 minutes of vigorous, aerobic activity per week (or an equivalent mix).

Detail

The major public-health guidelines converge on the same weekly aerobic dose for adults aged 18–64:

WHO 2020 Guidelines on Physical Activity and Sedentary Behaviour: at least 150–300 minutes of moderate-intensity, or 75–150 minutes of vigorous-intensity aerobic activity per week, or an equivalent combination of the two.
U.S. Physical Activity Guidelines for Americans, 2nd ed. (2018): the same 150–300 min moderate / 75–150 min vigorous range for substantial health benefits, preferably spread throughout the week.

Important details:

Equivalence rule: 1 minute of vigorous activity counts roughly as 2 minutes of moderate, which is why the vigorous target is half the moderate target. Moderate and vigorous minutes can be combined (e.g., 90 min moderate + 30 min vigorous).
No 10-minute minimum: the 2nd-edition U.S. guidelines and WHO 2020 both removed the old requirement that activity occur in bouts of at least 10 minutes — bouts of any length now count toward the total.
Dose-response: "some is better than none," and more activity yields additional benefits; the 300 min / 150 min upper figures mark additional health gains, not a cap.
Plus strength: both guidelines add muscle-strengthening activity of moderate or greater intensity on 2+ days/week for all major muscle groups (a resistance-training, not cardio, recommendation).

Volume can also be expressed in MET-minutes/week (METs × minutes; see METs (Metabolic Equivalents)); the U.S. guidelines and the ACSM 2011 position stand both equate the target to about 500–1000 MET-min/week. These targets are the "V" (Volume) of the FITT-VP prescription (see FITT-VP Applied to Cardio).

Key facts

150–300 min/week moderate or 75–150 min/week vigorous (or equivalent mix). [WHO 2020; PAG 2nd ed.]
Vigorous counts ~2× moderate (equivalence rule).
No 10-minute-bout minimum (PAG 2nd ed.; WHO 2020); bouts of any length count.
≈ 500–1000 MET-min/week (PAG 2nd ed.; ACSM 2011).
Dose-response: some is better than none; more yields more benefit.
Plus muscle strengthening on ≥2 days/week (all major muscle groups).

Connections

FITT-VP Applied to Cardio — these targets are the Volume component.
Aerobic Intensity Classification (Light / Moderate / Vigorous) — defines the "moderate" and "vigorous" used here.
METs (Metabolic Equivalents) — the MET-minute alternative currency.
Progressing Cardio Training — building up toward and beyond the target.
Cardiorespiratory Conditioning Guidelines (Peterson & Bryant / ACSM) — the manual-derived guideline counterpart.

Sources

GuidelineBull FC et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. Br J Sports Med 2020;54(24):1451–1462 Published 2020 · DOI 10.1136/bjsports-2020-102955 · Accessed 2026-10-13
GuidelineWorld Health Organization. WHO guidelines on physical activity and sedentary behaviour (2020) Published 2020 · Accessed 2026-10-13
GuidelineU.S. Department of Health and Human Services. Physical Activity Guidelines for Americans, 2nd edition (2018) Published 2018 · Accessed 2026-10-13
Position standGarber CE et al. American College of Sports Medicine position stand. Quantity and quality of exercise for developing and maintaining cardiorespiratory, musculoskeletal, and neuromotor fitness in apparently healthy adults: guidance for prescribing exercise. Med Sci Sports Exerc 2011;43(7):1334–1359 Published 2011 · DOI 10.1249/MSS.0b013e318213fefb · Accessed 2026-10-13

Also cited in text

WHO Guidelines on Physical Activity and Sedentary Behaviour (2020; Bull et al., Br J Sports Med 2020;54:1451–1462): 150–300 min moderate or 75–150 min vigorous/week, plus muscle strengthening 2+ days/week; 10-minute-bout requirement of the 2010 guidelines removed. Physical Activity Guidelines for Americans, 2nd ed. (2018): same ranges; 10-minute-bout requirement removed; 500–1000 MET-min/week. Garber CE et al., ACSM position stand, Med Sci Sports Exerc 2011;43(7):1334–1359.

Corrections (1)

2026-10-13 — Reconciled against WHO 2020 (Bull et al. 2020 and the WHO guideline document) and PAGA 2nd ed. (2018): 150–300 min moderate or 75–150 min vigorous, muscle strengthening of moderate or greater intensity for all major muscle groups on 2 or more days, confirmed unchanged. Added that WHO 2020 also dropped the 10-minute bout rule (its 2010 guidelines had it). MET-minute figure now sourced: PAGA and the ACSM 2011 stand both equate the target to about 500–1000 MET-min/week (previously 'very roughly').

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