Exam 2 Flashcards
Osteoporosis
Low bone mass leading to low bone strength
Structural deterioration
Increased bone fracture risk: hip, vertebrae, wrist
Osteoarthritis
Loss of articulate cartilage
Joint pain and dysfunction
Costly
Sarcopenia
Low muscle mass
Steps for healthy bones?
Best time for primary prevention of osteoporosis?
Putting stress on a bone through PA is good to promote osteoblast activity.
CHILDHOOD/ right before puberty
Emphasize bone overload in adults
Nonmodifiable risk factors for osteoporosis
Age (>50 yrs women, >70 yrs men) Sex (W) Genetics Ethnicity, race (white asian Latino) History of fractures
Modifiable osteoporosis risk factors
Physical inactivity
Tobacco use (blocks absorption of calcium)
Thin or underweight
Low sex hormones
Nutrition (low calcium and vit D intake, excessive caffeine, excessive alcohol)
Optimal bone health for kids
Impacts- 3.5x body weight, 100 impacts, 3x/wk for 7+ mo.
Resistance train- >60% 1 rep max, >30 min, 3x/wk for 7+ mo.
Aerobic- mod to vig intensity, 30-40 min/day
Osteoarthritis risk factors
Phys inactivity Excessive PA/overuse (occupational loads) Excessive bod weight Age sex genetics history of joint injury
Females at greater risk for osteoarthritis
Wider hips cause different angle in knee when bearing load or just standing
Functional health
ABILITY to do the PA one wants to do/activities of daily living (ADLs) w/o pain/limitation
Relationship between PA/exercise and risk of hip fractures- inverse or direct?
Inverse- when active 36-38% lower risk
NO DIRECT EVIDENCE THAT MODERATE PA INCREASES ARTHRITIS
That’s all
OBESITY
Incredibly common (29.6% obese, 35% overweight) Incredibly difficult to treat/prevent
How do we assess fatness?
BMI (screening tool) MRI DXA- dual x ray absorptiometry Underwater weighing- water displacement Bod pod- air displacement Ski fold technique Bioelectrical impedance Estimates- error give or take 2/3% at best
LOOK AT HHP PHOTOS FOLDER
That’s it
Obesogenic Environment
Group of factors that encourage obesity/sedentary lifestyle
Nonmodifiable obesity risk factors
Age Heredity Ethnicity/race (black/Latino) Metabolism Culture
Modifiable obesity risk factors
Physical inactivity
Excess caloric intake
Low SES
Weight stability (%)
<3% change in weight
Weight loss (%)
At least a 5% loss of body weight
Weight loss maintenance (%)
Maintaining within 3-5% of a new weight
Recommended MET hours (multiply MET value by time in hours)
8-16 MET hours
MET hrs required for weight maintenance/stability
Resistance training not highly correlated with this
13-26
MET hrs required for weight loss
Dose response PA important
> 26 hrs/wk
Daily PA- 45 min at 5 MET, 70 min at 3 MET, 22 min at 10 MET
MET hrs required for prevention of weight regain
> 30 MET hrs per week
Daily PA- 50 min at 5 MET, 80 min at 3 MET, 25 min at 10 MET
Paradigm
Worldview underlying the theories and methodology of a particular scientific subject
HAES
Health At Every Size
Weight loss not the goal, health promotion is
Supports intuitive eating, active living over structured exercise
Obesity as a disease PROS
Increased treatment access
Increased treatment coverage
May change the way obesity is viewed
Obesity as a disease CONS
BMI incorrectly classifies overfat
Some view obesity as risk factor not disease
Not all overweight individuals require “correction”
Potential to reduce personal responsibility by relying on clinical treatment
HEALTH IS MULTI DIMENSIONAL
Remember