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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Int J Psychophysiol. 2018 Oct 12;134:44–51. doi: 10.1016/j.ijpsycho.2018.10.007

Table 3.

Statistical summary of post-hoc comparisons of cerebral blood flow (ml/100g/min) at pre-test relative to post-test for each region and mode.

Pre-test Post-test t p drm [95% CI]
Global Gray Matter
  Active Control 65.7 ± 6.8 63.4 ± 6.9 4.0 < 0.001 0.31 [0.15 to 0.47]
  Exercise 66.0 ± 6.8 63.6 ± 6.2 4.1 < 0.001 0.39 [0.19 to 0.58]
Left Frontoparietal Network
  Active Control 71.1 ± 7.6 68.3 ± 7.7 4.5 < 0.001 0.33 [0.17 to 0.48]
  Exercise 71.3 ± 7.9 69.2 ± 7.6 3.3 0.001 0.29 [0.11 to 0.46]
Right Frontoparietal Network
  Active Control 64.3 ± 7.3 61.9 ± 7.8 3.7 < 0.001 0.31 [0.14 to 0.48]
  Exercise 64.8 ± 7.4 62.0 ± 7.3 4.3 < 0.001 0.38 [0.20 to 0.56]
Executive Control Network
  Active Control 64.2 ± 7.3 62.4 ± 7.1 3.0 0.004 0.26 [0.08 to 0.43]
  Exercise 64.2 ± 7.3 61.7 ± 7.5 4.3 < 0.001 0.33 [0.17 to 0.48]
Motor Network
  Active Control 53.2 ± 5.4 52.3 ± 5.7 1.5 0.1 0.16 [−0.06 to 0.38]
  Exercise 53.7 ± 5.8 52.2 ± 5.0 2.4 0.02* 0.25 [0.04 to 0.46]
*

Note: t-tests reflect the difference in cerebral blood flow between pre-test and post-test for each experimental condition for each neural region. The change in cerebral blood flow in the motor network in response to exercise did not remain significant following false discovery rate control (Benjamini-Hochberg critical alpha = 0.02). No statistical difference in cerebral blood flow was observed between the active control and exercise conditions for either pre-test or post-test, t’s (34) ≤ 0.6, p’s ≥ 0.5, drm’s ≤ 0.08 [95% CI: −0.21 to 0.32]. No interactions of Mode × Time were observed, F’s (1, 37) ≤ 0.9, p’s ≥ 0.3, f 2’s ≤ 0.03 [95% CI: 0.0 to 0.14].