Nautilus EV7.18 Uživatelský manuál stáhnout pdf (Strana 26)

NAUTILUS

FIT TEST PROGRAM

C H A N G I N G T H E G A M E I N H E A LT H A N D F I T N E S S

™

The ﬁ nal assumption addresses the issue of

mechanical efﬁ ciency. Oxygen uptake at any given

work rate can vary by approximately 15% between

different individuals. Therefore, individuals vary

in the amount of oxygen they require to perform

a certain exercise workload. Some individuals

are more efﬁ cient at performing a given task

than others. As a result, the average oxygen

consumption associated with a given workload

may vary signiﬁ cantly from one person to another.

Thus, VO2 max predicted by sub-maximal exercise

tests tends to be overestimated for those who

are mechanically efﬁ cient and underestimated for

those who are inefﬁ cient.

The point to remember is that sub-maximal exercise

testing, though not as precise as maximal exercise

testing, is not without advantages. For example, the

results of such testing can provide a fairly accurate

reﬂ ection of an individual’s ﬁ tness status without

the cost, risk, effort (on the part of the subject)

and time involved in max testing. If an individual is

given repeated sub-maximal exercise tests and that

person’s heart rate response to a ﬁ xed workload is

found to decrease over time, it is reasonably safe to

conclude that the individual has made improvements

in aerobic (cardio respiratory) ﬁ tness, irrespective of

the accuracy of the VO2 max prediction.

Pretest Screening

Prior to any exercise test (maximal or sub-maximal),

participants should complete a brief health/

medical questionnaire, have their resting blood

pressure and heart rate measured, and provide

an informed consent form. The Physical Activity

Readiness Questionnaire (PAR-Q) is an example of

a valid health/medical questionnaire for screening

individuals prior to sub-maximal exercise testing.

Canadian health and ﬁ tness practitioners have

extensively (and quite successfully) used the

PAR-Q to determine whether individuals should be

given an exercise test. A “yes” answer to any of the

following seven questions taken from the PAR-Q

would disqualify a participant from taking part in an

exercise test until appropriate medical clearance

was obtained.

Physical Activity Readiness Questionnaire (PAR-Q)

1. Has your doctor ever said you have a heart

condition and recommended only medically

supervised physical activity?

2. Do you have chest pain brought on by

physical activity?

3. Have you developed chest pain within the

past month?

4. Do you tend to lose consciousness or fall over as a

result of dizziness?

5. Do you have a bone or joint problem that could be

aggravated by the proposed physical activity?

6. Has a doctor ever recommended medication for

your blood pressure or a heart condition?

7. Are you aware, through your own experience

or a doctor’s advice, of any other physical

reason against your exercising without medical

supervision?

Nautilus

Sub-Maximal Fit Test

The Nautilus

Fit Test is a program that estimates

maximal aerobic capacity based on heart-rate

response to sub-maximal exercise.

The protocol is a series of 3-minute stages of

continuous exercise at increasing intensity. The

ﬁ rst stage is a warm-up at approximately 4 METs.

The intensity of the remaining stages is based

on the heart rate response to the warm-up. The

test is designed to raise the steady state heart

TEST YOUR FITNESS LEVEL

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 43 44

Komentáře k této Příručce

Žádné komentáře

Nautilus EV7.18 Uživatelský manuál Strana 26

Komentáře k této Příručce

Související produkty a manuály pro Fitness, gymnastika a silový trénink Nautilus EV7.18