KINE 1020 Study Guide - Final Guide: Hip Fracture, Cholecalciferol, Estrone

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 1020
• Professor: Jennifer Kuk

Document Summary

Ethnicities vs osteoporosis: asians have a very low osteoporotic fracture risk because they are shorter to the ground, blacks have the lowest rate of fracture risk and osteoporosis, more dense bones. Strong bones require: regular physical activity, with a good intake of nutrients, sun exposure and calcium, normal hormone levels, big effects. Caffeine and bone: caffeine inhibits your intestines ability to absorb ca and lowers ca net balance, but the magnitude of it is small. Alcohol and bone: relationship between these lower chronic alcoholism leads to lower bmd and higher fracture risk due to, poor nutrition and malabsorption of calcium, liver disease, abnormal vitamin d, directly toxic to osteoblasts (bone forming cells) Alcohol can be beneficial to women on hrt because it stimulates androstenedione conversion into estrone (increases hormones) Space travelers lose bone mass after long periods of weightlessness: caused by disuse of bones. It is also seen in paralysis victims and people with severe fractures.