The purpose of this study was to examine VT and LT in boys and men. Eight boys (10-11 years) and nine men (18-30 years) completed a graded exercise test on a cycle ergometer. A two-way (group x threshold) ANOVA compared physiological responses (V02 1/min and ml/kg/min, percentage of V02max, and HR) at VT and LT. Statistical significance was set at P < 0.05. No significant interaction was observed. Significant main effects for group included a higher V02 (1/min) in the men, and a higher percentage of VO2max in the boys. Significant main effects for threshold showed all variables were greater at VT than LT. Within each group, all variables were significantly higher at VT than LT. For the boys and all subjects together, significant correlations between thresholds were observed for V02 (1/min and ml/kg/min) and HR, but not percentage of VO2max. For the men alone, no significant correlations were found. Together, these results suggest that physiological changes associated with LT may contribute to the onset of VT, and the occurrence of the thresholds (expressed as a percentage of VO2max) declines with maturation. / School of Physical Education
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/187048 |
| Date | January 2001 |
| Creators | Anderson, Cindy S. |
| Contributors | Mahon, Anthony D. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | v, 62 leaves : charts ; 28 cm. |
| Source | Virtual Press |
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