Muscle architecture and clinical parameters in stroke patients: An ultrasonographic study

To compare the lower extremity muscle architecture on both the affected side and healthy sides using ultrasound (US) imaging and examine the relationship between these measurements and clinical parameters in stroke patients.

A cross-sectional analysis of 125 stroke patients (64 M, 61 F) was performed in this study. Timed up and go (TUG) test was used to evaluate balance, Fugl-Meyer assessment of lower extremity (FMA-LE) was used to evaluate motor function, functional independence measurement (FIM) was used to evaluate functional status. Muscle thicknesses (MT) of rectus femoris (RF), vastus intermedius (VI), vastus medialis (VM), vastus lateralis (VL), soleus, medial gastrocnemius (GC) muscles, the PA and the FL of GC were obtained using ultrasound (US) imaging.

The muscle thickness, PA and FL of the affected side decreased significantly compared to the healthy side (p = .0001) in stroke patients. Another clear result was that soleus and GC muscle thicknesses and PA of GC muscle were found to be associated with balance, motor function, and functional status.

The properties of muscles evaluated with US may provide recommendations for clinical assessments and also potentially contribute to clinicians designing a rehabilitation intervention program for stroke patients.