1. Verification of Maximal Oxygen Uptake in Active Military Personnel During Treadmill Running.
- Author
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Figueiredo, Peter S., Looney, David P., Pryor, J. Luke, Doughty, Elizabeth M., McClung, Holly L., Vangala, Sai V., Santee, William R., Beidleman, Beth A., and Potter, Adam W.
- Subjects
AMERICAN military personnel ,EXERCISE tests ,RUNNING ,CONFIDENCE intervals ,OXYGEN consumption ,CARDIOPULMONARY system ,REGRESSION analysis ,EXERCISE intensity ,DESCRIPTIVE statistics - Abstract
Figueiredo, PS, Looney, DP, Pryor, JL, Doughty, EM, McClung, HL, Vangala, SV, Santee, WR, Beidleman, BA, and Potter, AW. Verification of maximal oxygen uptake in active military personnel during treadmill running. J Strength Cond Res 36(4): 1053-1058, 2022-It is unclear whether verification tests are required to confirm "true" maximal oxygen uptake (V[Combining Dot Above]O
2 max) in modern warfighter populations. Our study investigated the prevalence of V[Combining Dot Above]O2 max attainment in U.S. Army soldiers performing a traditional incremental running test. In addition, we examined the utility of supramaximal verification testing as well as repeated trials for familiarization for accurate V[Combining Dot Above]O2 max assessment. Sixteen U.S. Army soldiers (1 woman, 15 men; age, 21 +/- 2 years; height, 1.73 +/- 0.06 m; body mass, 71.6 +/- 10.1 kg) completed 2 laboratory visits, each with an incremental running test (modified Astrand protocol) and a verification test (110% maximal incremental test speed) on a motorized treadmill. We evaluated V[Combining Dot Above]O2 max attainment during incremental testing by testing for the definitive V[Combining Dot Above]O2 plateau using a linear least-squares regression approach. Peak oxygen uptake (V[Combining Dot Above]O2 peak) was considered statistically equivalent between tests if the 90% confidence interval around the mean difference was within +/-2.1 ml[middle dot]kg-1 [middle dot]min-1 . Oxygen uptake plateaus were identified in 14 of 16 volunteers for visit 1 (87.5%) and all 16 volunteers for visit 2 (100%). Peak oxygen uptake was not statistically equivalent, apparent from the mean difference in V[Combining Dot Above]O2 peak measures between the incremental test and verification test on visit 1 (2.3 ml[middle dot]kg-1 [middle dot]min-1 , [1.3-3.2]) or visit 2 (1.1 ml[middle dot]kg-1 [middle dot]min-1 [0.2-2.1]). Interestingly, V[Combining Dot Above]O2 peak was equivalent, apparent from the mean difference in V[Combining Dot Above]O2 peak measures between visits for the incremental tests (0.0 ml[middle dot]kg-1 [middle dot]min-1 [-0.8 to 0.9]) but not the verification tests (-1.2 ml[middle dot]kg-1 [middle dot]min-1 [-2.2 to -0.2]). Modern U.S. Army soldiers can attain V[Combining Dot Above]O2 max by performing a modified Astrand treadmill running test. Additional familiarization and verification tests for confirming V[Combining Dot Above]O2 max in healthy active military personnel may be unnecessary. [ABSTRACT FROM AUTHOR]- Published
- 2022
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