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Table 3 Results of subjective measures (VAS scores) for each aroma condition

From: Alleviation of acute stress response by black pepper aroma administration

VAS score

Condition

Rest (R1)

Task (T)

Rest (R2)

Mean

(SD)

Mean

(SD)

Mean

(SD)

Nervousness

DPG

31.2

(22.6)

32.4

(19.7)

25.5

(18.4)

BLP

24.0

(17.1)

41.4

(20.1)

23.4

(19.0)

GIN

24.1

(19.4)

35.0

(19.9)

20.3

(16.6)

Effort

DPG

30.8

(20.4)

50.7

(22.7)

26.9

(20.6)

BLP

25.7

(19.5)

49.9

(20.7)

24.7

(21.7)

GIN

25.5

(21.3)

49.8

(23.0)

22.8

(17.7)

Concentration

DPG

40.6

(22.7)

50.1

(22.9)

31.8

(21.0)

BLP

38.0

(22.7)

53.4

(24.8)

29.3

(21.4)

GIN

35.2

(23.9)

45.8

(24.9)

30.5

(24.6)

Fatigue

DPG

28.2

(21.3)

51.0

(23.7)

39.6

(23.5)

BLP

22.4

(18.8)

49.0

(21.0)

41.8

(22.1)

GIN

25.8

(20.2)

51.2

(21.6)

35.8

(18.1)

Irritation

DPG

20.2

(19.5)

30.1

(21.1)

22.2

(17.9)

BLP

17.4

(17.0)

26.6

(17.6)

22.8

(18.1)

GIN

18.9

(16.7)

34.2

(20.2)

17.9

(15.8)

Boredom

DPG

39.0

(21.4)

28.3

(20.6)

43.2

(20.7)

BLP

39.1

(21.3)

25.7

(19.6)

43.5

(19.1)

GIN

42.3

(19.7)

27.0

(18.2)

41.6

(20.3)

Fed-up

DPG

25.1

(21.7)

36.7 *

(20.3)

30.2

(23.7)

BLP

23.4

(15.1)

30.0 *

(17.4)

30.3

(18.5)

GIN

25.4

(17.9)

38.3

(22.1)

28.7

(18.0)

  1. DPG dipropylene glycol, BLP black pepper, GIN ginger, VAS visual analog scale, SD standard deviation; * p = 0.049, Bonferroni-corrected comparison between each condition