H-reflex changes in adolescents with idiopathic scoliosis: a randomized clinical trial.
Mohamed Salaheldien Mohamed Alayat, Ehab Mohamed Abdel-Kafy, Ashraf Mohamed Abdelaal
PMID 28932008WHAT IT FOUND
Direction-sensitive exercises guided by H-reflex asymmetry reduced spinal curvature more effectively than traditional exercises in adolescents with mild scoliosis.
Both groups improved, but the reflex-guided approach showed greater gains in Cobb angle and H-reflex symmetry after 12 weeks.
Key findings
01The direction-sensitive exercise therapy (DSET) group showed significantly greater improvements in H max on the concave side and concave/convex ratios compared to the traditional exercise therapy protocol (TETP) group.
02Both treatment groups experienced significant decreases in Cobb's angle and improvements in H-reflex metrics from baseline to post-treatment.
03While both groups improved, DSET demonstrated a more significant increase in measured outcomes than TETP.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study only included patients with mild curves (Cobb angle 10–20°) and excluded those with double curves or thoracic scoliosis, limiting generalizability to more complex or severe cases. The sample size was relatively small (50 participants analyzed), and 10 patients withdrew, which could introduce bias. The long-term effects of DSET beyond 12 weeks were not assessed. The study did not measure patient-reported outcomes like pain or quality of life, focusing only on electrophysiological and radiographic metrics.
Declared interests
The project was funded by the National Plan for Science, Technology and Innovation (MAARIFAH), King Abdulaziz city for science and Technology, the Kingdom of Saudi Arabia. No other conflicts of interest were declared.
The easy way to misread this
Do not assume that H-reflex testing is a necessary or available tool in all clinical settings for prescribing these exercises. The study used specialized EMG equipment to guide the DSET protocol, which may not be feasible for general practice. Furthermore, the benefit of DSET over traditional exercises was seen in mild, specific curve types; do not generalize these results to severe scoliosis or other curve patterns without further evidence.