Table 1 Changes in RVD in the superficial and deep layers of myopic and emmetropic eyes before exercise, after 20 min of exercise, and after 30 min of rest.

From: Effects of physical exercise on macular vessel density and choroidal thickness in children

 

Variables

Pre-exercise

(95% CI)

Post-exercise

(95% CI)

Rest

(95% CI)

P Value

(post–pre/rest-pre)

Myopia

(N = 40)

Superficial overall RVD(%)

43.35 ± 1.63

(42.83–43.87)

43.25 ± 1.50

(42.77–43.73)

43.63 ± 1.45

(43.17–44.09)

0.462/0.061

Superficial parafoveal RVD (%)

48.88 ± 1.57

(48.37–49.38)

48.82 ± 1.53

(48.33–49.31)

49.20 ± 1.50

(48.72–49.68)

0.668/0.030

Superficial foveal RVD (%)

21.24 ± 4.99

(19.65–22.84)

20.97 ± 5.05

(19.35–22.58)

21.35 ± 5.00

(19.75–22.95)

0.405/0.744

Deep overall RVD (%)

44.20 ± 1.41

(43.80–44.68)

43.87 ± 1.55

(43.52–44.51)

44.28 ± 1.52

(43.88–44.76)

0.022/0.568

Deep parafoveal RVD (%)

50.90 ± 1.71

(50.42–51.59)

50.54 ± 1.75

(50.01–51.32)

51.03 ± 1.68

(50.58–51.58)

0.031/0.517

Deep foveal RVD (%)

17.37 ± 4.59

(15.91–19.00)

17.19 ± 4.21

(16.12–18.59)

17.30 ± 4.30

(15.92–18.92)

0.619/0.865

Control

(N = 18)

Superficial overall RVD(%)

41.66 ± 1.19

(41.07–42.25)

41.78 ± 1.27

(41.15–42.42)

42.19 ± 1.34

(41.53–42.86)

0.399/0.008

Superficial parafoveal RVD (%)

47.04 ± 1.32

(46.38–47.70)

46.19 ± 1.77

(45.31–47.07)

47.56 ± 1.44

(46.84–48.27)

0.129/0.015

Superficial foveal RVD (%)

20.14 ± 3.87

(18.21–22.06)

20.72 ± 4.17

(18.64–22.79)

20.73 ± 4.22

(18.64–22.83)

0.036/0.036

Deep overall RVD (%)

42.19 ± 1.63

(41.38–43.00)

42.67 ± 2.01

(41.67–43.67)

43.08 ± 1.73

(42.22–43.95)

0.054/0.002

Deep parafoveal RVD (%)

48.84 ± 1.59

(48.05–49.63)

49.38 ± 2.06

(48.36–50.41)

49.96 ± 1.81

(49.06–50.86)

0.072/0.003

Deep foveal RVD (%)

15.56 ± 3.72

(13.71–17.41)

15.80 ± 3.71

(13.96–17.65)

15.57 ± 4.35

(13.41–17.74)

0.125/0.977

  1. RVD retinal vessel density, CI confidence interval, post–pre comparisons by paired t tests for post-exercise vs. pre-exercise, rest-pre: comparisons by paired t tests for post-rest vs. pre-exercise.
  2. Bold values indicate statistical significance: p < 0.05.