ArticleBMC pediatrics2026
Clinimetric evaluation of the 1-minute sit-to-stand test as a functional performance measure associated with quadriceps strength in children with spastic hemiplegic cerebral palsy.
Article in BMC pediatrics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the construct validity, test-retest reliability, and clinical applicability of the 1-minute sit-to-stand test (1-MSTST) as a functional performance-based measure associated with quadriceps strength in ambulatory children with spastic hemiplegic cerebral palsy (GMFCS I-II). Despite its validity, instrumented strength assessment is not always feasible in routine pediatric rehabilitation, highlighting the need for simple functional alternatives.
methodsIn this cross-sectional methodological study with a test-retest design, 78 children aged 12-18 years were assessed. Quadriceps strength was measured using hand-held dynamometry. Functional performance was evaluated using the 1-MSTST, and a work score was calculated by multiplying repetitions by body weight. Construct validity was examined through correlations between work score and quadriceps strength.
resultsThe 1-MSTST work score correlated strongly with affected limb strength (r = 0.72, p < 0.001) and moderately-to-strongly with the unaffected limb (r = 0.65, p < 0.001). Test-retest reliability was good (ICC = 0.78; 95% CI: 0.69-0.85). The standard error of measurement was 92.6 kg·repetitions and the minimal detectable change at the 95% confidence level was 256.7 kg·repetitions. No adverse events occurred. These findings indicate that the 1-MSTST is significantly associated with quadriceps muscle strength and may reflect functional lower limb performance, rather than serving as a direct measure of isolated muscle strength capacity.
conclusionThe 1-MSTST is a valid, reliable, and clinically feasible tool for assessing functional performance related to quadriceps strength in ambulatory children with spastic hemiplegic cerebral palsy. It may serve as a practical complementary tool to instrumented strength assessment, particularly in routine and resource-limited clinical settings.
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