Effect of Brief Daily Resistance Training on Occupational Neck/Shoulder Muscle Activity in Office Workers with Chronic Pain: Randomized Controlled Trial

Table 3

Frequency of EMG gaps (periods per minute below 0.5% EMGmax) for m. trapezius and m. splenius, median (interquartile range).

		Training (𝑁=15)	Control (𝑁=15)
Trapezius
Before daily training session	Week 0	8.5 (4.4–11.6)	4.2 (1.9–11.5)
	Week 10	8.2 (6.3–15.3)	3.7 (1.1–13.2)
After daily training session	Week 0	7.4 (5.4–11.7)	3.0 (2.0–12.2)
	Week 10	7.6 (4.4–15.2)	2.2 (1.2–6.4)
Splenius
Before daily training session	Week 0	3.1 (1.4–10.9)	5.0 (1.6–10.9)
	Week 10	12.3 (4.8–15.2)^b	1.1 (0.5–5.8)
After daily training session	Week 0	5.0 (2.7–7.8)	3.1 (1.3–11.7)
	Week 10	8.0 (3.5–14.5)^d	1.3 (0.5–6.5)

b 𝑃<0.05 significant change from baseline to follow-up in the training group compared with the control group. d𝑃<0.05 significant change from before to after the daily training session.