Meaning of the word "interval training" in English

What does "interval training" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

interval training

US /ˈɪn.t̬ɚ.vəl ˌtreɪ.nɪŋ/
UK /ˈɪn.tə.vəl ˌtreɪ.nɪŋ/
"interval training" picture

Noun

a type of physical training that involves a series of high-intensity workouts interspersed with rest or relief periods

Example:
Interval training is an effective way to improve cardiovascular fitness.
She added interval training to her running routine to increase her speed.