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Table 1 Changes in systolic blood pressure and diastolic blood pressure

From: Effects of L-theanine or caffeine intake on changes in blood pressure under physical and psychological stresses

Systolic blood pressure changes (mmHg)
  High-response group Low-response group
  Mean blood pressure SEM Mean blood pressure SEM
  Caffeine L-theanine Placebo Caffeine L-theanine Placebo Caffeine L-theanine Placebo Caffeine L-theanine Placebo
Base 0 0 0 0 0 0 0 0 0 0 0 0
AMT1 4.83 7.17 12.17 5.75 4.85 3.58 10.32 5.78 6.82 3.02 7.25 3.12
AMT2 3.05 5.55 13.82 3.48 6.04 3.48 5.62 2.07 1.36 3.84 5.23 2.06
AMT3 5.10 −0.36 17.68 2.95 8.50 3.24 5.78 4.31 3.98 2.89 5.80 2.01
AMT4 7.95 −0.49 21.35 3.24 5.45 3.36 5.98 9.05 3.64 5.19 4.79 2.39
AMT5 8.08 2.88 21.82 3.71 2.66 5.46 6.92 9.28 2.75 4.25 5.35 2.56
AMT6 10.75 5.01 22.41 3.55 2.21 4.47 5.91 9.98 3.28 4.47 5.75 2.63
CPT1 5.63 4.14 15.34 5.61 3.78 7.61 −2.63 7.00 3.19 5.17 7.55 4.03
CPT2 3.98 10.10 12.74 7.04 7.37 10.28 −9.26 −2.76 3.42 5.66 6.86 5.74
CPT3 18.58 28.22 19.57 7.20 5.92 8.47 3.98 12.31 15.95 5.00 7.35 4.41
CPT4 29.62 36.24 28.04 8.36 8.02 7.11 16.20 23.71 25.82 4.58 5.79 3.57
CPT5 40.52 47.64 40.05 8.71 6.67 4.70 31.65 32.08 33.61 5.23 7.46 4.99
CPT6 45.36 54.15 49.15 7.15 6.22 4.24 38.10 39.48 39.24 6.85 7.55 5.25
RP1 44.70 50.71 49.64 6.61 5.76 5.98 35.92 40.74 35.55 4.57 7.75 6.34
RP2 43.03 43.70 46.51 7.48 6.69 6.26 35.18 43.70 36.82 5.86 7.85 6.26
RP3 35.78 38.82 41.28 6.13 6.70 6.77 31.30 33.81 33.41 4.95 6.94 6.57
RP4 30.66 29.77 32.61 6.63 6.02 4.00 26.18 26.68 26.41 4.76 6.68 4.66
RP5 25.05 24.68 24.78 6.41 5.04 2.77 24.11 20.12 21.92 4.78 5.82 4.89
RP6 22.99 20.92 20.12 5.56 4.09 2.23 20.73 18.22 17.99 4.70 5.20 4.58
RP7 21.68 19.58 19.90 5.15 3.96 3.03 16.51 21.51 18.14 3.77 5.38 4.31
RP8 19.99 16.77 21.42 5.33 3.83 2.28 15.97 19.44 17.05 4.62 5.35 2.91
RP9 18.95 14.82 23.78 4.52 3.25 2.61 15.17 17.75 18.78 4.82 5.95 3.62
RP10 15.32 15.12 20.72 3.46 3.71 3.11 13.72 18.22 20.75 5.11 6.80 3.90
RP11 15.72 16.94 17.67 3.20 5.49 3.23 15.27 18.48 22.31 4.22 6.66 4.34
RP12 17.25 17.55 19.34 3.29 3.98 3.38 17.28 18.84 21.79 4.70 6.35 4.66
RP13 17.35 15.34 23.24 3.92 3.46 3.27 15.42 22.60 17.48 4.96 6.25 4.65
RP14 15.36 16.77 20.18 3.67 5.27 3.30 14.40 18.04 15.75 5.45 5.50 3.33
RP15 15.06 18.07 22.38 3.85 3.84 2.66 9.80 20.72 15.35 5.23 6.03 3.03
RP16 16.48 16.54 18.65 2.71 3.50 3.63 12.42 23.12 17.28 4.57 7.01 3.83
RP17 18.10 17.70 17.67 3.75 2.96 3.49 13.92 19.35 18.24 4.87 5.63 3.76
RP18 18.33 16.40 15.70 3.04 1.96 4.23 14.43 16.14 19.36 3.91 6.94 3.10
Diastolic blood pressure changes (mmHg)
  High-response group Low-response group
  Mean blood pressure SEM Mean blood pressure SEM
  Caffeine L-theanine Placebo Caffeine L-theanine Placebo Caffeine L-theanine Placebo Caffeine L-theanine Placebo
Base 0 0 0 0 0 0 0 0 0 0 0 0
AMT1 4.96 6.00 11.74 3.66 2.30 1.97 7.41 5.87 7.14 2.65 3.20 1.62
AMT2 4.47 5.34 12.30 2.53 1.31 3.56 2.38 1.46 4.14 2.61 2.98 2.08
AMT3 5.09 0.61 12.60 1.98 3.27 2.91 3.51 3.00 4.39 2.71 3.27 2.27
AMT4 5.73 2.14 17.07 2.39 2.20 2.83 4.22 5.31 5.39 3.34 3.22 2.00
AMT5 5.81 5.67 16.10 2.27 3.43 4.83 5.39 4.99 4.51 2.92 3.03 1.88
AMT6 7.19 6.64 16.90 2.37 3.08 3.73 3.95 6.66 4.64 2.98 3.03 1.73
CPT1 7.70 7.64 18.30 3.54 3.66 4.12 3.16 10.21 7.52 4.15 3.32 2.35
CPT2 8.56 9.58 16.31 3.87 3.60 5.78 0.89 1.36 6.49 4.13 3.14 2.88
CPT3 20.21 22.98 22.82 4.57 4.24 3.62 9.71 11.34 16.82 3.16 3.73 1.73
CPT4 28.40 30.20 29.32 5.15 6.15 1.49 18.34 20.10 23.91 2.86 2.84 2.14
CPT5 36.06 38.60 38.72 5.17 5.60 2.20 24.56 26.83 28.84 2.47 3.38 1.91
CPT6 39.39 42.83 43.18 4.30 4.62 3.75 27.31 30.29 32.04 2.90 3.73 2.23
RP1 35.79 38.60 42.20 5.27 4.67 4.80 24.09 27.87 27.85 2.71 3.48 2.61
RP2 32.09 31.23 36.65 6.64 5.16 4.47 19.93 25.49 24.41 3.35 3.74 2.22
RP3 25.97 26.03 31.75 5.68 5.50 4.00 16.69 18.37 19.62 3.04 3.84 3.18
RP4 21.84 21.50 25.34 5.36 5.65 2.92 13.60 15.34 16.02 3.16 3.82 2.84
RP5 18.16 17.67 19.81 5.31 4.85 2.57 12.40 12.10 12.68 3.04 3.10 2.99
RP6 16.11 15.78 16.97 4.49 4.38 1.68 10.79 11.10 11.09 3.20 2.71 2.72
RP7 14.83 14.55 15.90 3.73 4.37 1.58 8.04 12.81 11.44 2.59 2.66 2.59
RP8 13.71 12.40 16.55 3.80 3.67 1.98 8.26 10.90 10.98 3.29 2.75 1.79
RP9 12.59 12.25 18.04 3.83 3.38 2.17 6.76 10.14 12.08 3.11 2.99 2.36
RP10 9.06 12.00 15.18 2.98 3.86 2.63 5.95 10.23 12.16 3.47 2.99 2.64
RP11 10.23 12.78 13.37 2.58 3.72 2.73 7.45 10.24 12.82 2.42 2.62 2.38
RP12 10.90 12.94 14.80 2.89 3.04 2.93 7.04 10.61 12.76 3.19 3.18 2.62
RP13 10.04 11.61 16.50 3.04 2.74 2.47 6.49 12.07 9.99 2.90 2.95 2.94
RP14 8.90 12.14 13.94 2.90 3.26 2.53 5.72 8.90 9.75 3.19 3.04 1.67
RP15 9.30 12.54 16.81 3.12 2.76 1.97 4.38 11.49 8.88 3.33 2.78 1.70
RP16 8.99 10.44 13.04 2.50 1.71 2.86 5.96 11.91 9.58 2.28 2.87 1.76
RP17 9.30 11.80 12.77 2.69 2.30 3.38 5.79 9.37 10.08 3.29 2.70 2.12
RP18 9.66 12.08 10.03 2.33 2.53 3.43 6.17 8.93 11.50 2.43 3.06 2.57