User manual

LC7TT novo
29
Power calculation
1 RPM = that a point on the flywheel moves 6
meters per minute.
50 RPM = 300 m
2 kp force makes 2 x 300 = 600 kpm./min.
100 RPM = 600 m
1 kp force makes 1 x 600 = 600 kpm./min.
Exact calculation:
Watts = RPM x kp x 0.98065
"Rule of thumb" calculation:
Watts = RPM x kp
(2% error, but may be good enough in many cases)
Reviewing results
The maximum oxygen uptake is a standard
measurement of the condition of the heart- and
lung-functions. Dependent on the linear relationship
between work and oxygen uptake and between work
and heart rate, the heart rate response to work may
be used to estimate the oxygen consumption. If the
maximum heart rate is considered, the maximum
oxygen consumption may be determined.
The YMCA and Åstrand protocols estimate
the maximum oxygen consumption, based on a
submaximal workload while all others report the
oxygen consumption required by the final workload.
The estimated maximum oxygen consumption
derived from some of the ergometer tests is subject
to the error of the “age related predicted maximum
heart rate“. Although there is a definite and linear
relationship between work and oxygen uptake, there
are some differences in actual oxygen uptake based
on individual work efficiency. Test persons who are
less familiar with bike exercise and those individuals
who are less fit, are more likely be less efficient than
those who ride bikes frequently.
It should be noted that these results are estimates or
predictions of maximal response and have a greater
chance of being in error than if the individual were
tested to their actual maximum value. Interpretation
should therefore be made more carefully with an
understanding of the possibility of errors in the
methodology.