strenuous exercise

Translations
интенсивные упражнения
Someone engages in strenuous exercise to stay fit.
Кто-то занимается интенсивными упражнениями, чтобы поддерживать форму.
Definitions
Strenuous exercise refers to physical activities that require significant effort and exertion, often leading to increased heart rate, heavy breathing, and fatigue. These activities typically involve high intensity and can include running, weightlifting, or competitive sports.
Words
exercise

noun
упражнение
strenuous

adjective
напряжённый