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Table 2 Mean muscle tone and stiffness according to pain location of each participant. Key: NPRS-numerical pain rating scale

From: Lumbar muscles biomechanical characteristics in young people with chronic spinal pain

Pain locationNPRSLeftRight
Muscle tone (Hz)Stiffness (N/m2)Muscle tone (Hz)Stiffness (N/m2)
Left312.48179.0612.82184.17
412.55161.1713.30191.58
314.01213.8914.05216.33
415.64314.8916.29353.33
317.12389.9416.63387.58
Right413.77226.8313.63212.17
315.49302.5015.95321.42
615.42301.8315.58314.42
Bilateral416.31311.2816.13286.75
317.96406.7218.84430.92
413.61201.7213.61204.42
420.67497.5021.19515.58
516.04330.7215.84303.75
319.51438.1718.66424.75
513.10208.6712.58194.17