Effects of electrode size and placement on comfort and efficiency during low-intensity neuromuscular electrical stimulation of quadriceps, hamstrings and gluteal muscles

Table 2 Comfort and intensity needed for muscle contraction for horizontal versus vertical placement of the 5 × 9 cm electrodes

	Quadriceps		Hamstrings		Gluteus
	p value^a		p value^a		p value^a
NRS—vertical placement	0 (0–0.50)	0.91	0 (0–0.33)	0.53	0 (0–1.3)	0.58
NRS—horizontal placement	0 (0–0.38)		0.25 (0–0.50)		0 (0–0.44)
Amplitude (mA)—vertical placement	20 (17–22)	0.39	24 (22–26)	0.57	29 (24–32)	0.21
Amplitude (mA)—horizontal placement	20 (17–22)		25 (22–26)		29 (23–37)

NRS, Numeric Rating Scale for pain; mA, milli ampere
^aP values calculated with Wilcoxon sign rank test. Data are expressed as median (inter-quartile range)

ISSN: 2052-1847