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Table 3 Indirect effects of expectancy and decline in blood bicarbonate on TTE

From: Sodium Bicarbonate and Time-to-Exhaustion Cycling Performance: A Retrospective Analysis Exploring the Mediating Role of Expectation

Pathway

b (SE)

95% CI

PSIE (SE)

95% CI

Indirect effects on TTE via expectancy

D1

− 10.95 (14.3)

− 40.50 to 16.58

− 0.15 (0.20)

− 0.57 to 0.23

D2

− 13.00 (17.25)

− 49.83 to 17.65

− 0.18 (0.24)

− 0.71 to 0.24

D3

− 11.63 (15.55)

− 45.35 to 16.16

− 0.16 (0.22)

− 0.64 to 0.22

D4

− 2.05 (15.49)

− 18.16 to 5.67

− 0.03 (0.08)

− 0.25 to 0.08

D5

− 0.68 (5.37)

− 14.48 to 8.34

− 0.01 (0.08)

− 0.20 to 0.12

D6

1.37 (4.96)

− 7.1 to 14.62

0.02 (0.07)

− 0.10 to 0.20

Indirect effects on TTE via decline in blood bicarbonate

D1

− 9.45 (18.29)

− 46.51 to 26.73

− 0.13 (0.25)

− 0.64 to 0.38

D2

− 38.33 (20.39)

− 81.49 to − 2.15

− 0.53 (0.28)

− 1.12 to − 0.03

D3

− 37.93 (18.87)

− 76.18 to − 2.61

− 0.53 (0.26)

− 1.04 to − 0.04

D4

− 28.88 (15.49)

− 63.25 to 1.75

− 0.40 (0.21)

− 0.88 to 0.02

D5

− 28.48 (15.12)

− 61.49 to − 0.73

− 0.39 (0.21)

− 0.84 to − 0.01

D6

0.39 (12.29)

− 23.04 to 25.96

0.01 (0.17)

− 0.31 to 0.37

Indirect effects on TTE via expectancy and decline in blood bicarbonate

D1

− 27.64 (15.08)

− 63.68 to − 5.63

− 0.38 (0.20)

− 0.84 to − 0.09

D2

− 32.83 (16.10)

− 71.32 to − 8.33

− 0.45 (0.20)

− 0.92 to − 0.13

D3

− 29.37 (15.05)

− 65.97 to − 6.75

− 0.41 (0.19)

− 0.86 to − 0.10

D4

− 5.18 (8.47)

− 23.18 to 10.98

−0.07 (0.11)

− 0.31 to 0.15

D5

− 1.73 (8.72)

− 19.48 to 16.59

− 0.02 (0.12)

− 0.26 to 0.23

D6

3.46 (8.12)

− 12.50 to 21.95

0.05 (0.11)

− 0.17 to 0.30

  1. Unstandardised coefficients are shown
  2. Bold indicates difference (p < 0.05)
  3. SE standard error, PSIE partially standardized indirect effect, TTE time-to-exhaustion
  4. D1 = SB-SOL versus SB-CAP, D2 = SB-SOL versus PL-SOL, D3 = SB-SOL versus PL-CAP, D4 = SB-CAP versus PL-SOL, D5 = SB-CAP versus PL-CAP, D6 = PL-SOL versus PL-CAP