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FREECLIMBER 4400/4600 PT/CL CONSOLE
150, external factors no longer influence heart rate, and a linear relationship
exists. As the heart rate rises above 150, the heart-rate/oxygen uptake rela-
tionship becomes curvilinear.
The third assumption involves maximal heart rate. Maximal heart rate
is the greatest heart rate that can be measured when an individual is exercis-
ing to the point of volitional fatigue (i.e., exhaustion) during a graded exercise
test. Several equations have been developed to estimate the average maximal
heart rate for humans:
•
Maximal heart rate = 220 minus age (low estimate)
•
Maximal heart rate = 210 minus [0.5 x age] (high estimate)
•
Maximal heart rate = 226 minus age (estimate for older
individuals)
Maximal heart rate can, however, vary greatly among different
individuals of the same age. One standard deviation is
±
12 bpm, which means
that two-thirds of the population varies an average of plus or minus 12 heart
beats from the average given by a prediction equation. If an individual’s age-
predicted maximal heart rate is higher than that person’s true maximal heart
rate, then his/her estimated VO
2 max
will be an overestimation of the correct or
actual value.
The final assumption addresses the issue of mechanical efficiency.
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 efficient at performing a given task than others. As a result, the aver-
age oxygen consumption associated with a given workload may vary signifi-
cantly from one person to another. Thus, VO
2 max
predicted by submaximal exer-
cise tests tends to be overestimated for those who are mechanically efficient
and underestimated for those who are inefficient.
The point to remember is that submaximal 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 reflection of
an individual’s fitness status without the cost, risk, effort (on the part of the
subject) and time involved in max testing. If an individual is given repeated
Содержание FREECLIMBER 4200 PT
Страница 1: ...FREECLIMBER 4200 PT 4400 PT CL AND 4600 PT CL OWNER S MANUAL ...
Страница 13: ...Page 4 Figure 2 Major Parts 4200 PT and 4400 PT CL INTRODUCTION ...
Страница 83: ...Page 74 APPENDICES Figure 11 Parts Needing Periodic Maintenance ...
Страница 84: ...Page 75 APPENDICES Figure 12 Final Assembly Left 4600 PT ...
Страница 85: ...Page 76 APPENDICES Figure 13 Final Assembly Right 4600 PT ...
Страница 86: ...Page 77 APPENDICES Figure 14 Final Assembly Left 4600 CL ...
Страница 87: ...Page 78 APPENDICES Figure 15 Final Assembly Right 4600 CL ...
Страница 88: ...Page 79 APPENDICES Figure 16 Covers 4600 PT CL ...
Страница 89: ...Page 80 APPENDICES Figure 17 Pedal Arm Assembly First Reduction Shaft Assembly 4600 4400 PT CL 4200 PT ...
Страница 90: ...Page 81 APPENDICES Figure 18 Drive Shaft Assembly Eccentric Hub Assembly 4600 4400 PT CL 4200 PT ...
Страница 91: ...Page 82 APPENDICES Figure 19 Final Assembly Left 4400 4200 PT ...
Страница 92: ...Page 83 APPENDICES Figure 20 Final Assembly Right 4400 4200 PT ...
Страница 93: ...Page 84 APPENDICES Figure 21 Final Assembly Left 4400 CL ...
Страница 94: ...Page 85 APPENDICES Figure 22 Final Assembly Right 4400 CL ...
Страница 95: ...Page 86 APPENDICES Figure 23 Covers 4400 PT CL 4200 PT ...
Страница 96: ...Page 87 APPENDICES Figure 24 Cover Removal ...
Страница 97: ...Page 88 Figure 25 Cover fasteners APPENDICES ...
Страница 98: ...Page 89 APPENDICES Figure 26 Drive Chain tensioning ...
Страница 99: ...Page 90 APPENDICES Figure 27 Belt Tension ...