: cardiovascular exercise
30 minutes of cardio daily
Examples of cardio in a Sentence
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Samantha Agate,
Fort Worth Star-Telegram,
1 July 2026
The AeroPilates Reformer helps tone muscles, improve flexibility and boost cardio health with customizable intensity for full-body workouts.
—
Tory Johnson,
ABC News,
24 Apr. 2026
Diana Anos,
CNN Money,
3 July 2026
Rucking is having a moment among men over 40 who want a low-impact way to combine cardio and strength training.
—
Samantha Agate,
Sacbee.com,
1 July 2026
See All Example Sentences for cardio
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Adjective
Fredericson said the activity pushes the body into the cardio sweet spot of roughly 60 to 70 percent of max heart rate, and noted that research shows carrying heavy loads over complex terrain elevates cardiorespiratory demand.
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Samantha Agate,
Fort Worth Star-Telegram,
1 July 2026
The AeroPilates Reformer helps tone muscles, improve flexibility and boost cardio health with customizable intensity for full-body workouts.
—
Tory Johnson,
ABC News,
24 Apr. 2026
Noun
In addition to the three EMS workout classes, Ferrara does cardio twice a week.
—
Diana Anos,
CNN Money,
3 July 2026
Rucking is having a moment among men over 40 who want a low-impact way to combine cardio and strength training.
—
Samantha Agate,
Sacbee.com,
1 July 2026
See All Example Sentences for cardio
Cite this Entry
“Cardio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardio. Accessed 7 Jul. 2026.
Copy CitationMedical Definition
cardio
1 of 2 adjective
car·dio
ˈkärd-ē-(ˌ)ō 
: cardiovascular sense 2
cardio exercises
worked out on cardio machines
cardio
2 of 2 noun
: cardiovascular exercise
30 minutes of cardio daily
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