Kinesiology 3347A/B Chapter Notes - Chapter 5: Epiphyseal Plate, Myocyte, Ossification
5 Apr 2017
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Chapter 5: development & aging of body systems. Body systems: recall the model of constraints: task-environment-individual, body system factors, the average pattern of change within each system, the range of individual variations for a system. Osgood-schlatter: phalanges, femur, tibia, fibula, caused by repetitive stress or tension on part of the growth area of the upper tibia, traction epiphysis, characterized by inflammation. Cessation of bone growth: growth at the epiphyseal plates stops at different times for different bones, all typically close by age 18-19 depending on gender, average humerus epiphyseal plate closes, 15. 5 years for females, 18. 1 years for males. In youth, new bone is formed faster than old bone is absorbed. In adulthood, bone growth slows, fails to keep pace with reabsorption: by mid-late (cid:1006)(cid:1004)"s, (cid:271)o(cid:374)e loss (cid:272)a(cid:374) o(cid:272)(cid:272)ur at (cid:1005)% per year or (cid:373)ore, bone becomes brittle, unequal amounts of organic & inorganic material.
