Answer:
Frequency - Weight train 2-4 times per week. ( with a day rest in between training same muscle that week)
Intensity - For teens, 60%-75% of 1RM for 8-12 repetitions or 6-10 repetitions.
Time - A total workout can be about 30-60 minutes.
Type - Anaerobic activities such as weight lifting develop muscular strength.
Explanation:
Taken from: https://askinglot.com/how-can-you-apply-the-fitt-principle-to-muscular-endurance
