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Flashcards in general notes Deck (42)
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1

first ventilatory threshold (VT1)

occurs first time lactate begins to accumulate

represents hyperventilation relative to VO2

caused by the need to rid of extra CO2 produced by the buffering of acid metabolites

highest intensity that can be sustained for 1-2 hours

2

second ventilatory threshold (VT2)

occurs when lactate is rapidly increasing with intensity

represents hyperventilation even relative to the extra CO2 being produced (to the point where ridding CO2 is not enough to buffer the j crease in acidity

the highest intensity that can be sustained for 30-60 minutes

3

major components of physical fitness

muscular fitness (strength and endurance)

cardiovascular or cardiorespiratory endurance

flexibility

body composition

mind/body vitality

4

processes that must be functioning to provide blood and nutrients to the tissues (3)

getting oxygen to the blood by pulmonary ventilation and hemoglobin content of blood

delivering oxygen to the active tissues through cardiac output

extracting oxygen from the blood to complete the metabolic production of ATP

5

acute responses to aerobic exercise

increased cardiac output

increased systolic blood pressure

increased pulmonary ventilation

depletion of phosphagens and accumulation of lactate

decreased flow off lol to visceral organs

6

chronic adaptations to aerobic exercise

increased respiratory capacity

decreased blood pressure in moderately hypertensive individuals

lowered resting heart rate

increased aerobic capacity

improved body composition

7

lean body mass

body composition consisting of muscles, bones, nervous tissue, skin, blood, organs

8

at rest, exchange ratio values average .75, indicates the body burning ? % fat and ? % carbohydrate

85%
15%

9

on average how much energy is burned for every liter of oxygen consumed

5 kCal

10

during exercise, ? stays the same or decreases due to vasodilation of blood vessels

diastolic blood pressure

11

L/min

is the unit of measurement for

absolute VO2 max

12

carbon dioxide produced / oxygen consumed

is the formula for

respiratory exchange ratio

13

mL/kg/min

is the unit of measurement for

relative VO2 max

14

Q = HR x SV

is the formula for

cardiac output

15

signs of heat exhaustion

weak rapid pulse
low blood pressure
headache
nausea
dizziness
general weakness
paleness
cold clammy skin
profuse sweating
elevated core temp (104F, 40C)

16

signs of heat stroke

hot dry skin
bright red skin color
rapid strong pulse
labored breathing
elevated core temp (105F, 41C)

17

aerobic or anaerobic energy

bench press exercise for 8-12 reps, 70-80% one time rep max

anaerobic

18

aerobic or anaerobic energy

plyometric jump squat

anaerobic

19

aerobic or anaerobic energy

cycling at 70% of heart rate reserve for 20 minutes

aerobic

20

aerobic or anaerobic energy

sprinting at 90% VO2 max for 60sec

anaerobic

21

aerobic or anaerobic energy

sitting taking notes

aerobic

22

aerobic or anaerobic energy

shot putting

anaerobic

23

the end of the chain farthest from the body is fixed

movements emphasize compression of joints

ex. squat

closed-chain exercise

24

the end of the chain farthest from the body is free

movements tend to involve more shearing forces at the joints

ex. seated leg extension

open-chain exercise

25

Four muscles synergistically responsible for hip flexion

Iliopsoas
Rectus femoris
Sartorius
Tensor fascia latae

26

Six external rotators of the hip

Piriformis
Superior gemellus
Obturator internus
Obturator externus
Inferior gemellus
Quadratus femoris

27

muscle who's main function is to hold the medial border of the scapula firmly against the rib cage to prevent winging of the shoulder blade

serratus anterior

28

only one of four muscles of the quadriceps femoris that crosses the hip joint

rectus femoris

29

little lat

teres major

30

commonly weak in individuals who have rounded shoulders in a seated or standing posture

middle trapezius