| Summary: | The purpose of this study was to determine the physiological response of an in-line submaximal skate on two surfaces using two wheel types and two bearing types. The variables measured were V0$ sb2$ and HR. Ten male varsity hockey players volunteered as subjects. The subjects, after being assigned one of two wheel types with varying durometers, skated the submaximal test twice for each surface (concrete and asphalt) using a different type of bearing (precision and semi-precision) each time. These results were compared to a similar on-ice submaximal skating test session. === Results revealed no significant difference between in-line skating with wheels of 78 and 82 Shore A durometers (p $<$.05) with both V0$ sb2$ and HR as markers. A significant difference was found between in-line skating with precision and semi-precision bearings with V0$ sb2$ as a marker (p $<$.05), however, not with HR as a marker (p = 0.31). On-ice skating was significantly different from in-line skating on concrete and asphalt surfaces for both physiological markers. In-line skating on asphalt and concrete surfaces resulted in similar physiological responses. It was concluded that hockey players training with in-line skates obtain the same training benefits using either wheel durometers, but will have greater oxygen costs when training with semi-precision bearings than training with precision bearings.
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