Question

what does hiit stand for? *
high-intensity interval training
heavy intensity integrated training
high impact internal training
heavy impact interval training

what is the main goal of circuit training? *
focus on one muscle group
build cardiovascular endurance and strength
improve flexibility
enhance meditation skills

Explanation:

For the first question, HIIT is a well - known abbreviation in the field of exercise. "High - Intensity Interval Training" is the correct full form.
For the second question, circuit training typically involves a series of exercises that work different muscle groups and also challenge the cardiovascular system, so its main goal is to build cardiovascular endurance and strength.

Answer:

1. High - Intensity Interval Training
2. Build cardiovascular endurance and strength