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name the 3 types of muscle fibers slow twitch, fast twitch, and intermediate
name the 3 different muscular contractions isometric, concentric, and eccentric
dynamic stretching - conducted prior to exercise
- goal is to prepare body for exercise
- fluid, controlled motion of joint through full range of motion
- increases blood flow to muscles/joints
- increases neuromuscular activity between CNS and PNS
- active movements
static stretching - goal is to increase flexibility and recover from exercise
- best if done after a workout or after dynamic stretching
- most effective method to increase flexibility
,health risks of being overweight/obese - heart disease
- stroke
- type 2 diabetes
- cancers
- joint problems/osteoporosis
- sleep apnea
- alzheimer's
- high cholesterol
- dementia
- high blood pressure
- gallbladder disease
- menstrual abnormalities
- difficulty with conception or pregnancy
health risks of being underweight - heart problems
- digestive disorders
- kidney damage
, - anemia
- lethargy
- muscle weakness
- dry skin
- compromised immune system
- loss of energy and muscle mass
- osteoporosis
- menstrual abnormalities
- hair loss
- emaciation (droopy skin on face)
what is the most accurate field test for body composition? skinfold assessment
what are the 2 most accurate lab tests for body composition? - dual energy x-ray
absorptiometry (DEXA)
- hydrostatic (underwater) weighing