Health Sciences 2711A/B Chapter Notes - Chapter 4: Trait Theory, Vestibular System, Cardiac Output
25 Apr 2018
School
Department
Course
Professor
Document Summary
Hair: hair loses melanin= grey hairs, hair loss results from the destruction of the germination centres that produce the hair in the hair follicles, androgenetic alopecia: male and female pattern hair loss. Start producing short, fine, unpigmented and virtually invisible hair known as vellus hair: hair may appear in other parts not wanted (ex. on the chin, ears, eyebrows) Body build: height: loss of bone material in the vertebrae = spine collapses and shortens, more pronounced in women, body shape, fat-free mass (ffm) decreases. Exercising decreases this and made them feel more fit. Mobility: canadian institute of health research researched and found biggest prob was getting the results to those who need it. Muscles: sarcopenia: progressive, age-related loss of muscle tissue, # and size of muscle fibres decreases- especially fast twitch ones you use in speed and strength, muscle strength peaks in 20s and 30s and decreases after the 50s.
