Research Article

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

Trapezius0.5% EMGmax
 Before daily training sessionWeek 018.5% (5.1–39.1)11.4% (4.3–17.6)
Week 1024.0% (16.0–34.6)4.1% (0.9–27.8)
 After daily training sessionWeek 015.1% (11.1–30.2)9.8% (3.1–12.7)
Week 1025.8% (13.4–42.2)4.9% (1.5–7.9)
1.0% EMGmax
 Before daily training sessionWeek 039.0% (14.1–50.8)21.3% (7.6–34.1)
Week 1032.3% (24.3–54.8)9.9% (2.9–35.5)
 After daily training sessionWeek 025.9% (21.2–41.2)12.6% (6.3–26.0)
Week 1037.0% (20.7–54.3)6.6% (3.9–13.9)
1.5% EMGmax
 Before daily training sessionWeek 047.3% (24.3–57.3)28.3% (10.2–43.9)
Week 1038.6% (32.3–66.1)19.5% (5.1–40.4)
 After daily training sessionWeek 036.1% (29.1–50.6)15.2% (10.5–33.3)
Week 1046.2% (26.5–62.8)11.0% (5.7–18.8)
2.0% EMGmax
 Before daily training sessionWeek 055.0% (37.6–61.9)34.7% (15.6–52.3)
Week 1044.5% (39.2–72.9)27.9% (7.3–47.7)
 After daily training sessionWeek 044.9% (35.8–58.3)19.5% (14.2–39.4)
Week 1053.6% (32.9–74.7)14.4% (7.8–28.5)

(b)

Training Control

Splenius0.5% EMGmax
 Before daily training sessionWeek 02.3% (1.0–20.7)7.1% (3.8–11.1)
Week 1015.6% (11.7–28.5)a0.8% (0.2–4.6)
 After daily training sessionWeek 05.0% (2.2–8.9)4.1% (1.3–10.4)
Week 1014.3% (8.5–20.0)1.9% (0.3–5.9)
1.0% EMGmax
 Before daily training sessionWeek 07.6% (5.8–35.1)11.1% (6.4–24.7)
Week 1026.0% (21.9–45.0)b3.5% (1.4–12.6)
 After daily training sessionWeek 011.9% (4.3–19.4)5.9% (2.0–22.5)
Week 1023.9% (12.3–29.8)3.7% (1.0–12.4)
1.5% EMGmax
 Before daily training sessionWeek 018.2% (11.1–48.5)21.0% (7.6–29.8)
Week 1037.2% (29.8–55.4)7.3% (2.8–20.8)
 After daily training sessionWeek 024.6% (10.1–37.6)8.2% (4.6–32.5)
Week 1034.2% (19.2–40.8)5.7% (2.5–18.8)
2.0% EMGmax
 Before daily training sessionWeek 030.1% (19.8–57.9)31.0% (10.7–37.8)
Week 1046.0% (36.2–62.6)10.6% (5.4–29.3)
 After daily training sessionWeek 035.1% (19.9–51.2)11.9% (8.8–35.5)
Week 1041.0% (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.