HKIN 425 Lecture Notes - Lecture 9: Menarche, Time Point, Bone Mineral
Document Summary
Includes all materials from days 2 to 14. Research designs, uniqueness of human growth, factors affecting gmd, growth in height and weight, growth curves, proportions, velocity of growth. 1000 children born in 1990 had their height, weight, and skinfolds measured twice each year from the ages of 2 to 20 years. Data was also collected on their physical activity and sport par- ticipation. Physical activity was measured using an accelerometer (motion detector) providing minutes spent in sedentary, light, moderate, hard, and very hard physical activity. Sport partici- pation was measured using a questionnaire that asked about type of sport participation as well as frequency. What type of research study is this? (1 mark) longitudinal. What is the birth cohort of this group? (1 mark) 1990. What is the time of measurement? (1 mark) twice per year. What is the age of the subjects? (1 mark) 2, 2. 5, 3, 3. 5 20.
