Does participation in Downhill mountain biking affect measures of executive function
Journal of Science and Cycling(2020)
摘要
This study assessed the influence of downhill mountain biking on acute measures of executive function. Twenty-three participants took part in the study and were assigned to either, FIELD (N=7, mean age 27 ± 9 yrs), LAB (N=8, mean age 36 ± 9 yrs) or CONTROL (N=8, mean age 41 ± 9 yrs) groups. Participants performed the Stroop colour-word test via a tablet pc app (EncephalApp). \nAdditionally, the Trail Making Test A (TMT-A) and B (TMT-B) were completed. \nSignificant main effects were found for OffTime (F2,12 = 13.04; p = .001; ηp2 = .69), OnTime (F2,12 = 4.31; p = .04; ηp2 = .42) and OnTrials (F2,12 = 10.74; p = .002; ηp2 = .64), with the results showing a decrement in Stroop test performance following Trial1 and Trial4 compared to BL for the FIELD group. A significant main effect was found for TMT-A (F2,12 = 7.50; p = .008; ηp2 = .56), with performance improving following Trial4 compared to BL for the FIELD group. LAB and CONTROL groups significantly improved on the TMT-B from BL to Trial1 and Trial4 (F2,14 = 4.31; p = .04; ηp2 = .38 and F2,14 = 13.70; p = .001; ηp2 = .66, respectively). Results suggest participation in downhill mountain biking in this cohort significantly impaired executive function when compared to repeated sprint activity within a laboratory. This is indicative of repeated head accelerations caused by riding over rough terrain.
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