THE EFFECTS OF EXTERNALLY ADDED LOAD ON 3 MINUTE ALL-OUT RUNNING TEST PERFORMANCE
A. Solomonson & W. Kerr
Minnesota State University, Mankato, MN
Purpose: We investigated the use of the 3 minute all-out running test for use with tactical populations, examining the difference between externally loaded (18.63 kg) and unloaded 3 min-all out running test running test performance, comparing maximal steady state (CS) and curvature constant (D’) with respect to percent of body mass of the external load. Methods: Seven recreationally active subjects participated in two 3 minute all-out running tests, one weighted, using an adjustable weight vest, and another un-weighted. Critical Speed and curvature constants (D’) were established for both trials. Comparisons were made using ∆CS and ∆D’ between weighted and un-weighted trails, with the percentage of body mass that the vest represented. Results: Critical speeds and D’ of weighted and un-weighted trails were 3.11± .33 m/s, 225.93±44.43 m and 3.85±.44 m/s, 200.10±35.42 respectively. ∆CS and ∆D’ were .74±.26 m/s and -26.55±40.64 m. Change in critical speed when compared to % body mass (BM) had an R value of .73, while the R value comparing ∆D’ and %BM was .17. Conclusions: Similar to the un-weighted 3MT performance, running velocity quickly peaked and subsequently declined to a steady state approximately during the last 30 s. of the test. As expected the change in critical speed correlated with the % BM that the vest represented, leading to the assumption that exercise performance is less affected by the addition of an external load than that of those which the external load represents a greater percentage.
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Solomonson, A and Kerr, W
"THE EFFECTS OF EXTERNALLY ADDED LOAD ON 3 MINUTE ALL-OUT RUNNING TEST PERFORMANCE,"
International Journal of Exercise Science: Conference Proceedings:
1, Article 41.
Available at: http://digitalcommons.wku.edu/ijesab/vol12/iss1/41
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