Discussion
Peak height velocity during adolescence indicates :
Answer: D
Peak height velocity (PHV) is the maximum rate of growth in stature during the adolescent spurt, usually expressed in cm per year. Because it is the rate at its highest point, it indicates the rate of growth. It also shows the intensity (magnitude) of the spurt, and the age at which it occurs marks the timing of the spurt.
Each of options A, B and C describes one real use of the measure, so the answer is 'All of the above'.
In most children the peak comes at about 12 years in girls and 14 in boys, so the timing also differs by sex.
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