lab methods final exam Flashcards
define muscular strength
the muscles ability to exert a maximal force on one occassion
define muscular endurance
the muscles ability to preform successful repetitions against a sub maximal load
define flexibility
the functional capacity of joints to move through a full ROM
defien cardiorespitory fitness
the ability of the body’s respitory systems and circulatory to deliver oxygen to the muscles during physical activity
define isometric
generation of force without change in muscle length
define isotonic
A fixed amount of resistance
define isokenetic
fixed movement speed
what affects flexibility
age, gender,type of joint, previous injuries, adipose tissue
If you did a graded exercise test, what is the risk of an cardiac event happening
low- during or immediate after aGTX is 0.06%
what percentage of the body weight does skeletal muscle account for in men and woman?
40%-males
23%-females
what determines an athletes pace in an endurance event?- What measure of fitness
LT when expressed as an % of V02max
why would we use a belt in squatting and how would it help
supports lumbar and lower back during heavy lifts
increases intro-abdominal pressure
can be risky when not using a belt because stomach muscles aren’t use to contracting to support the spine.
which test are appropriate for muscular power
vertical jump
what is the SEE for most sub max cardiorespitory fitness test
+-10-20%
what 3 factors contribute to total daily expedentire
resting metabolic rate 60-75% of TDEE
Thermogenic effect of food (10% of TDEE)
Energy expended during PA and recovery (15-30% of TDEE)
Why is resting metabolic rate lower in women?
Low ffm
they have more body fat percentage
women burn less energy at rest than men
what affect does a fever or overreacted thyroid have on resting metabolic rate
resting metabolic rate increases
your body burns more calories at rest
what affect does age have on resting metabolic rate and what can we do about it
RMR decreases 2-3% per decade due to a decrease in fat free mass and an increase in fat mass
have a balnaced diet
maintain muscle mass through regular strength training
difference in diagnostic and prognosis test
Diagnostic: exercise testing used along ECG to diagnos CAD (treadmill stress test)
Prognosis: Exercise testing to project outcomes (cardiovascular risk profiles)
what is an RPE scale and what is it used for
Rate of perceived exertion
it is used to assess how hard someone feels while doing physical activity
on a scale of 6 to 20
percent of Vo2max accounted for by genetics
50%
what could be problematic about estimating a person’s 1RM from those like 6-10 RM test
it can lead to a less accurate assessment of their true maximum strength due to the inherent difficulty in predicting how much weight they could lift for just one repetition based on a higher rep range,
whats the difference between relatives and absolute values when testing
abssolute: Capacity without taking body weight into account
relative: Accounted for by using your weight
3 reasons that cause poor posture
sitting and standing with back curved
insufficient sleep or chronic fatigue
excess body weight
