Audiovisual Biofeedback-Based Trunk Stabilization Training Using a Pressure Biofeedback System in Stroke Patients: A Randomized, Single-Blinded Study

Table 2

Comparison of thicknesses of trunk muscles within group and between groups .

Variables	Experimental group ()			Control group ()			Significance of change scores
	Baseline	Post	Change score	Baseline	Post	Change score
Contracted ratio
TrA-affected							5.260 (0.000)
TrA-unaffected							3.331 (0.002)
IO-affected							0.448 (0.656)
IO-unaffected							0.338 (0.737)
EO-affected							2.938 (0.005)
EO-unaffected							3.551 (0.001)
Symmetric ratio
TrA-rest							1.808 (0.400)
TrA-contract							1.346 (0.186)
IO-rest							0.641 (0.525)
IO-contract							0.329 (0.744)
EO-rest							0.320 (0.751)
EO-contract							0.537 (0.594)

Note. Values are expressed as mean ± standard deviation; TrA: transverse abdominal muscle; IO: internal oblique muscle; EO: external oblique muscle. difference within group.