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Eur J Appl Physiol Occup Physiol. 1977 Sep 16;37(2):123-8.

A comparison of three W170 protocols.


This study compared the W170 scores of 9 male subjects in kgm/kg X min resultant from the following protocols: 2 X 6 min workloads (3 min rest between each bout), 3 X 4 min workloads (1 1/2 min rest between each bout), and 4 X 3 min workloads (1 min rest between each bout). Each subject experienced 2 preliminary rides in order to overcome the problems of learning and habituation and the order of the 3 experimental treatments was randomly assigned to each subject. An analysis of variance repeated measures design revealed that there was no statistically significant difference between the 3 protocols at the 0.05 level. The scores for the three W170 protocols correlated -0.084, 0.040, and -0.142 with VO2 max in ml/kg X min. The correlation coefficient between actual VO2 max in ml/kg X min and that predicted from the Astrand-Ryhming nomogram was 0.723.

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