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EDKP 330 (25)
Lecture 13

Lecture 13 (revised)

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Kinesiology&Physical Education
EDKP 330
David J Pearsall

11/5/2012 5:17:00 PM Pa reduces risk of many chronic diseases  Most common from PIA o Osteoporosis (bone health)  Low bone mass/bone mineral density  BMD low levels lead to  Increased bone fracture risk  Increased risk of falling  55% in >50yrs- primarily due to aging  women > men  due to menopause  o Osteoarthritis (joint health) o Low quality/quantity of muscle mass  Unintended consequences o Musculoskeletal injury o Exertion relation sudden death  Jim fix- wrote the book just running  Guy responsible for running boom in „80s  Went out running one day and dropped dead  27 yr runner died in Toronto marathon  claire squires- died during london marathon  suffered from pre-existing heart condition Definition of an injury has to do with the fact that people have different levels of pain tolerance and will experience/interpret injuries differently  Most injuries occur during weight lifiting exercise  Second is aerobics/dance/walking for exercise Risk factors for Musculoskeletal injury  Aging o Slower recovery time  Structural faults o Some more prone to injuries over others  Excess body weight & underweight o More stress on joints  Previous injuries/over use o More likely reinjury & chronic injury  Low fitness o Beginners more prone  Smoking o Vasocontriction = dec BF = increased inflammation o Reduced calcium absorbtion  Alcohol abuse  Improper use of pretective equipment  1+ risk factors means you need to be careful when exercising  lose flexibility w/ dec. exercise o Flexibility: joint range of motion  Sex  Physical inactivity o Less likely to have optimal BMD  Heredity  Ethnicity  intensity increases = increased risk of injury  men increased risk of injury  sports o football- many career ending hits (concussion, bad break) Prevention  Warm up  Begin slowly o Esp when starting new exercise program  Don‟t overstrain  Use proper form o Esp. with weight lifting  Use good equipment  “listen” to body o don‟t hid injuries Musculoskeletals health is not necessarily linked to a specific disease process  Low muscle mass = sarcopenia o Important determinate in functional health  Esp in older adults  2 kay factors of functional health  functional ability: capacity to perform a task, activity, or behavior independently  Role ability: ability to perform activities of daily living and instrumental activities of daily living o Strength training can  Increase BMD  Hormonal changes that remodel bone  Increase lean muscle mass (dec. fat)  Improved balance and stability  RF  PIA o Use it or lose it o Dose-response relationship  Tobacco use  Age o > 65 = highest risk  Sex o Women > men  Heredity o Being PA can increase quality/quantity of muscle mass 11/5/2012 5:17:00 PM Articular cartilage  Spongey substance  Allows joints to flide across o
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