Effect of Brief Daily Resistance Training on Occupational Neck/Shoulder Muscle Activity in Office Workers with Chronic Pain: Randomized Controlled Trial
Table 5
(a) Percentage time spent under given % EMGmax for m. trapezius, median (interquartile range). (b) Percentage time spent under given % EMGmax for m. splenius, median (interquartile range).
(a)
Training
Control
Trapezius
0.5% EMGmax
Before daily training session
Week 0
18.5% (5.1–39.1)
11.4% (4.3–17.6)
Week 10
24.0% (16.0–34.6)
4.1% (0.9–27.8)
After daily training session
Week 0
15.1% (11.1–30.2)
9.8% (3.1–12.7)
Week 10
25.8% (13.4–42.2)
4.9% (1.5–7.9)
1.0% EMGmax
Before daily training session
Week 0
39.0% (14.1–50.8)
21.3% (7.6–34.1)
Week 10
32.3% (24.3–54.8)
9.9% (2.9–35.5)
After daily training session
Week 0
25.9% (21.2–41.2)
12.6% (6.3–26.0)
Week 10
37.0% (20.7–54.3)
6.6% (3.9–13.9)
1.5% EMGmax
Before daily training session
Week 0
47.3% (24.3–57.3)
28.3% (10.2–43.9)
Week 10
38.6% (32.3–66.1)
19.5% (5.1–40.4)
After daily training session
Week 0
36.1% (29.1–50.6)
15.2% (10.5–33.3)
Week 10
46.2% (26.5–62.8)
11.0% (5.7–18.8)
2.0% EMGmax
Before daily training session
Week 0
55.0% (37.6–61.9)
34.7% (15.6–52.3)
Week 10
44.5% (39.2–72.9)
27.9% (7.3–47.7)
After daily training session
Week 0
44.9% (35.8–58.3)
19.5% (14.2–39.4)
Week 10
53.6% (32.9–74.7)
14.4% (7.8–28.5)
(b)
Training
Control
Splenius
0.5% EMGmax
Before daily training session
Week 0
2.3% (1.0–20.7)
7.1% (3.8–11.1)
Week 10
15.6% (11.7–28.5)a
0.8% (0.2–4.6)
After daily training session
Week 0
5.0% (2.2–8.9)
4.1% (1.3–10.4)
Week 10
14.3% (8.5–20.0)
1.9% (0.3–5.9)
1.0% EMGmax
Before daily training session
Week 0
7.6% (5.8–35.1)
11.1% (6.4–24.7)
Week 10
26.0% (21.9–45.0)b
3.5% (1.4–12.6)
After daily training session
Week 0
11.9% (4.3–19.4)
5.9% (2.0–22.5)
Week 10
23.9% (12.3–29.8)
3.7% (1.0–12.4)
1.5% EMGmax
Before daily training session
Week 0
18.2% (11.1–48.5)
21.0% (7.6–29.8)
Week 10
37.2% (29.8–55.4)
7.3% (2.8–20.8)
After daily training session
Week 0
24.6% (10.1–37.6)
8.2% (4.6–32.5)
Week 10
34.2% (19.2–40.8)
5.7% (2.5–18.8)
2.0% EMGmax
Before daily training session
Week 0
30.1% (19.8–57.9)
31.0% (10.7–37.8)
Week 10
46.0% (36.2–62.6)
10.6% (5.4–29.3)
After daily training session
Week 0
35.1% (19.9–51.2)
11.9% (8.8–35.5)
Week 10
41.0% (29.8–52.8)
9.7% (4.3–26.5)
significant change from baseline to follow-up in the training group compared with the control group. significant change from baseline to follow-up in the training group compared with the control group.