Feasibility of short-term supine rehabilitation for pediatric orthostatic intolerance: a case series.
Takumi Ohnishi, Tomoo Mano, Hiroki Nishikawa and 3 others
Four children with orthostatic intolerance completed a two-week supine cycling program without adverse events.
Fatigue scores improved in all four, but heart-rate changes were mixed. No control group — this shows the program is doable, not that it works.
Key findings
1All four patients completed the program without adverse events, and adherence to both supervised and self-training sessions was high.
2Fatigue scores improved in every patient, from 86 to 46, 78 to 30, 84 to 60, and 82 to 61 mm on a 100-mm scale.
3Three patients returned to school after discharge, and two attended more than three days per week.
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What it does not show
Only four patients at a single center, so the results cannot be generalised to other children or settings. No control group, so the authors themselves note that improvements may reflect hospitalisation, a structured daily routine, reduced stress, or increased supervision rather than the exercise itself. No statistical analysis was performed, so no significance testing was possible. Compliance was assessed only during the two-week hospital stay; there is no long-term follow-up to show whether any benefit lasted. Psychological and developmental factors were not systematically assessed, even though one patient had suspected selective mutism and autism spectrum disorder. The cardiac autonomic nervous system was not sufficiently evaluated, and the authors acknowledge that adrenergic receptor sensitivity may contribute to the observed responses. Conclusions rely primarily on subjective measures (fatigue scale) and school reintegration, while objective physiological changes were limited and inconsistent.
Declared interests
The authors declare no conflicts of interest and did not receive any funding.
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