Z2

Sports abbreviation · Fitness and Exercise

Z2
Stands forZone 2
CategoriesSports

Z2 stands for Zone 2, a fitness and exercise abbreviation.

Easy aerobic training intensity, usually about 60 to 70 percent of maximum heart rate, at which a person can still hold a conversation. It builds aerobic base and fat-burning capacity.

Example: Three hours of Z2 riding this week, plus one interval session.

Usage notes

Heart-rate zone systems usually have five zones, with zone 2 the second-lowest. Physiologist Inigo San Millan and podcaster Peter Attia helped popularize Z2 training in the 2020s. Endurance athletes often spend about 80 percent of their training at easy intensities.

More fitness and exercise abbreviations

  • 1RM – One-rep max
  • AMRAP – As many reps as possible
  • BB – Barbell
  • BCAA – Branched-chain amino acids
  • BMR – Basal metabolic rate
  • BW – Bodyweight
  • C&J – Clean and jerk
  • DB – Dumbbell
  • DOMS – Delayed-onset muscle soreness
  • EAA – Essential amino acids
  • EMOM – Every minute on the minute
  • EPOC – Excess post-exercise oxygen consumption

See all 35 fitness and exercise abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.