The most important types of exercises that build cardiorespiratory endurance are a. aerobic. b. strength training. c. flexibility. d. core.

Aerobic exercise activity is normally running, running, swimming, bicycling or even speed strolling on the grounds that these exercises get your heart rate up and by and large utilize bigger muscle gatherings. Normally, you're breathing increments as your heart rate climbs and your lungs load with oxygen.

Aerobic exercises are the best type of physical activity that is highly useful for building cardiorespiratory endurance, which is the measure of goodness of work of heart, lungs and muscles. Aerobic exrcises improves the pumping of oxygenated blood from heart to the muscles, which improe their performance.

Her parents start noticing changes about her. she's probably just competive though not on drugs