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cardio

adjective

  1. of or relating to aerobic exercise
  2. of or relating to the heart; cardiovascular
L1380551 on Wikidata ↗

noun

  1. cardiovascular exercise
L1380552 on Wikidata ↗

Wiktionary

Pronunciation: /ˈkɑː.dɪ.əʊ/ / /ˈkɑɹ.di.oʊ/

adj

Etymology: Clipping of cardiovascular.

  1. Cardiovascular; pertaining to the health of the circulatory and respiratory systems.

noun

Etymology: Clipping of cardiovascular.

  1. Exercise with the goal of raising the heart rate by walking or running on the treadmill.

    I did some cardio today instead of lifting weights.

    For decades, trainers and scientists have debated whether and how to mix cardio and resistance exercise. Some small studies suggest combining the two might up the likely gains from each, especially the resistance training.