Publication Date


Document Type


First Advisor

Plowman, Sharon A.

Degree Name

M.S. Ed. (Master of Education)

Legacy Department

Department of Physical Education


Men--Physiology; Running--Physiological aspects


The purpose of this study was to determine which two physiological variables accounted for the greatest variance in 10 kilometer run time (10 km RT) in a heterogeneous group of adult male runners. Variables examined were maximal oxygen consumption (V̇O[sub 2]max) ; running economy (RE) ; predicted velocity at V̇O[sub 2]max (vV̇O[sub 2]max) ; treadmill velocity at the onset of 4 mM lactic acid (vOBLA); and V̇O[sub 2] at ventilatory threshold (V̇O[sub 2] at VT[sub 2]). Eleven trained and experienced male runners, ages 18-33 years, performed two treadmill tests: (a) four submaximal intensities (215, 230, 248, and 268 m min^(-1)) for six minutes, each separated by five minutes of walking; and (b) 2-4 days following the initial test, an incremental protocol to determine ventilatory threshold and V̇O[sub 2]max. At the end of each run stage of the initial test, measures of blood lactic acid concentration were obtained. Results of multiple regression analysis indicated that two pairs of variables, V̇O[sub 2]max and RE, and V̇O[sub 2]max and vV̇O[sub 2]max, both accounted for 81% of the variance in 10 km RT with SEE's of 1.06 and 1.07 min, respectively. The results of this study indicate that V̇O[sub 2]max is the most important variable in accounting for 10 km RT (65%), while both RE and vV̇O[sub 2]max increased the ability to account for run performance by an additional 16% in this sample.


Includes bibliographical references (pages [45]-47)


55 pages




Northern Illinois University

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