AEROBICS2

49問 • 1年前

Kyla Rafols

通報

問題一覧

Metabolic systems involving a series of biochemical reactions resulting in the formation of ATP

energy systems

Major source of energy during the first 30 seconds of intense exercise

ATPPC

On ATP PC system, who is the chemical fuel source

The maximum capacity of the system is small

ATP PC

The maximum power of the system is great

ATP PC

Glucose is the fuel source

anaerobic glycolytic

The maximum capacity of the system is intermediate

anaerobic glycolytic

The maximum power of the system is intermediate

anaerobic glycolytic

The systems provide energy for activity of moderate intensity and short duration

anaerobic glycolytic

The maximum capacity of the system is great

aerobic

The maximum power of the system is small

aerobic

The system predominates over the ither energy systems after the second minute of exercise

aerobic

Characterized by slow contractioe response

type i

Rich in myoglobin and mitochondria, have a high oxidative capacity and low anaerobic capacity, and are recruited for activities demanding endurance

type i

Fibers are supplied by small neurons with a low threshold of activation and are used preferentially in low intensity exercise

type i

Characterized by a fast contractile response

type iib

Have a low myohlobin content and few mitochondria, have a high glycolytic capacity and are recruited for activities requiring power

type iib

Have characteristics of both fibers and are recruited for both anaerobic and aerobic activities

type iia

Lasting only seconds develop muscle strengrh and stronger tendons and ligaments

bursts of intense activity

ATP is supplied by the phosphagen system

bursts of intense activity

Lasting 1 to 2 mins repeated after 4 minutes of rest or mild exercise enhances anaerobic power

intense activity

ATP is supplied by the phosphagen and anaerobic glycolytic system

intense activity

Less than maximum intensity for 3-5 mins repeated after rest or mild exercise of similar duration, may develop aerobic power and endurance capabilities

activity with large muscles

ATP is supplied by phosphagen, anaerobic glycolytic and aerobic systems

activity with large muscles

Lasting 20-30 mins or more taxes a high percentage of the aerobic system and develops endurance

activity of submaximum intensity

MET is equal to approximately ______ mL/kg per minute

3.5

Usually expressed as percentage

efficiency

Equals force times distance

work output

Equals energy expenditure

work input

Expressed in power units or work per unit of time

work output

Expressed as the net oxygen consumption per unit of time

work input

Steady state is reached within 2-4 minutes after exercise has started if the load or resistance is kept constant

false

The higher the net oxygen cost, the lower the efficiency in performing the activity

true

Efficiency of large muscle activites is usually 30%-45%

false

Field tests for determining cardiovascular fitness include the time to run 1.5 miles or the distance run in 12 mins

true

Testing is usually completed in 4-7 treadmill stages, which progressively increase in speed and or grade. Each stage is 2-5 minutes long.

both false

Principles of stress testing

maintaining each workload for 1 min or longer, terminating the test at the onset of symptoms or a definable abnormality of the ECG, when available, measuring the individual’s VO2max, changing the workload by increasing the speed and or grade of the treadmill or the resistance on the bicycle ergometer, an initial workload that is low in terms of the individual’s anticipated aerobic threshold

Used clinically to evaluate patients with chest sensations or a history of chest pain to establush the probability that such patients have coronary disease

stress test

Can also evaluate the functional capacity of patients with chronic disease

stress test

Termination of stress testing include no increase in HR with an increase in exercise intensity

true

Each of the four to six stages last approximately 1 to 6 mins

multistage testing