A group of students decided to perform an experiment to determine the physiological effects of regular rowing compared to a control group who did no exercise.
After a month of training they noticed in the rowing group a significant increase in cardiac output and muscle mass.
What term is commonly used to describe the effects of such training on muscle?
1.Atrophy 2.Dysplasia 3.Hyperplasia 4.Hypertrophy 5.Metaplasia