Long-Term Monitoring of Physical Behavior Reveals Different Cardiac Responses to Physical Activity among Subjects with and without Chronic Neck Pain
Table 1
Descriptive statistics for subjects with and without chronic neck pain and values for tests of differences between the two groups.
Group pain
Control
Males,
13
14
.78
Females,
12
11
Office work,
17
19
.53
Production work,
8
6
BMI, mean (SD) kg⋅m−2
24.5 (3.8)
23.8 (3.3)
.66
Age, mean (SD) years
42.2 (9.8)
41.2 (9.3)
.71
Pain intensitya (six months), mean (SD)
4.2 (1.4)
0.4 (0.8)
<.0001
Pain intensitya (seven days), mean (SD)
4.0 (1.3)
0.2 (0.4)
<.0001
Work stressb (CR10, 0–10), mean (SD)
2.1 (1.0)
1.0 (0.8)
<.0001
Mental health (SF-36, 0–100), mean (SD)
75.2 (13.9)
81.6 (11.3)
.08
Sleep quality (KSQ, 0–24), mean (SD)
16.8 (3.9)
18.3 (2.1)
.10
(O2 mL/kg/min), mean (SD)
44.5 (12.1)
42.0 (10.2)
.45
Measurement duration, mean (SD) work days
3.0 (0.7)
3.0 (0.5)
.96
Time at work, mean (SD) hours
26.5 (6.5)
25.5 (5.0)
.53
Time at home, mean (SD) hours
15.6 (5.1)
15.1 (4.8)
.70
Time elsewhere, mean (SD) hours
7.2 (5.1)
7.8 (4.5)
.65
Self-reported sleep, mean (SD) hours/day
6.5 (0.6)
6.4 (0.3)
.44
Energy expenditure, mean (SD) MET/hour
MET work
1.6 (0.1)
1.6 (0.2)
.78
MET home
1.6 (0.2)
1.7 (0.3)
.36
MET elsewhere
1.8 (0.3)
2.1 (0.4)
.02
Pain intensity was reported using the CR10 scale (range 0–10). Stress ratings from the electronic diary were averaged across all work periods. Continuous variables were tested using independent samples -tests; distributions of gender and work type were tested by chi2 tests; significant -values, <.05, are bold faced. BMI: body mass index; MET: metabolic equivalent.
