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Table 2 Results experimental group

From: Effectiveness of an exercise intervention based on preactivation of the abdominal transverse muscle in patients with chronic nonspecific low back pain in primary care: a randomized control trial

Experimental group (n = 16)

Outcome

Pre

Mean (SD)

Post

Mean (SD)

p value

VAS (0–10)

5.4 (2.3)

3.3 (2.5)

0.00*

RMQ (0–24)

8.3 (4.7)

4.5 (2.9)

0.00*

Activation TrA-PBU (mmHg)

1.9 (1.5)

4.4 (1.44)

0.00*

Thickness TrA-US (mm)

2.18 (1.25)

2.91 (1.34)

0.01*

Resistance TrA-EMG (mV)

0.064 (0.081)

0.073 (0.08)

0.33

  1. *Statistically significant difference. SD: Standard Deviation VAS: Visual Analogue Scale. RMQ: Roland-Morris Questionnaire. TrA: Abdominal Transverse Muscle. PBU: Pressure Biofeedback Unit. US: Ultrasound. EMG: Electromyography