BPK 142 Lecture Notes - Lecture 3: Somatotype And Constitutional Psychology, Twin Study, Percentile

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 142
• Professor: Mike Walsh

Document Summary

Growth: progressive development of an organism from its earliest stage to maturity. At 5 years old: reproductive organs are less than 10 % of final weights until the onset of puberty the brain is 90 % of its adult weight, whereas the body is 25 % Stages of postnatal growth: neonatal period birth to the end of 4 weeks. Infancy end of 4 weeks to age 2. Characterized by tremendous growth, coordination, and mental development: childhood when puberty starts. Steady growth until preadolescence (growth spurt: adolescence begins around the age of 9 (girls) and age 11 (boys). 18 (not clearly delineated: adulthood life beyond adolescence. Adults have reached maximum physical stature, determined by genetic, nutritional, and environmental factors. Growth in height and weight: growth curves. Distance curve: measurements taken at intervals are plotted against time to produce a graph of progress.