Skip to main content

Table 3 Pre- and post-pain comparisons of indicators obtained from the wristwatch devices

From: Pain detection using biometric information acquired by a wristwatch wearable device: a pilot study of spontaneous menstrual pain in healthy females

Pre: Baseline (n = 30), Post: All pain (n = 30)

  

mean ± SD (min–max)

Test

Motion Frequency (Silmee)

Pre

12.2 ± 4.9 (0–15)

p = 0.04

 

Post

13.5 ± 3.4 (0–15)

 

Pulse Rate (Silmee), bpm

Pre

71.5 ± 10.4 (54–101)

p = 0.25

 

Post

69.8 ± 10.1 (50–100)

 

Skin Temperature (Silmee), ℃

Pre

30.5 ± 2.1 (25.2–33.5)

p = 0.77

 

Post

30.5 ± 2.1 (25.3–33.9)

 

Pulse Rate (Fitbit), bpm

Pre

76.7 ± 10.4 (58–97)

p = 0.13

 

Post

79.1 ± 11.3 (58–112)

 

Pre: Baseline (n = 30), Post: Only abdominal pain above pain intensity of 4 (n = 13)

  

mean ± SD (min–max)

Test

Motion Frequency (Silmee)

Pre

12.2 ± 4.9 (0–15)

p < 0.001

 

Post

14.9 ± 0.3 (8–15)

 

Pulse Rate (Silmee), bpm

Pre

71.5 ± 10.4 (54–101)

p = 0.74

 

Post

73.6 ± 17.4 (58–173)

 

Skin Temperature (Silmee), ℃

Pre

30.5 ± 2.1 (25.2–33.5)

p = 0.24

 

Post

30.7 ± 2.1 (26.5–33.4)

 

Pulse Rate (Fitbit), bpm

Pre

76.7 ± 10.4 (58–97)

p = 0.02

 

Post

79.6 ± 6.7 (66–95)

 
  1. SD: Standard deviation, bpm: beat per minute
  2. Test: Welch’s t-test for pulse rate (Fitbit) and Wilcoxon signed-rank test for other parameters
  3. Motion frequency value expresses the frequency of body movement from 0 to 15