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Clinical tools for assessment of the skeletal muscle strength are scarce and have rarely been validated in children. The aims of this study were to verify the construct validity of the one-minute sit-to-stand test (1-MSTST) to evaluate the quadriceps strength in healthy children between 12 and 18 years old and to correlate these outcomes with the anthropometric parameters.

Healthy children were recruited and consecutively performed 1-MSTST and maximal voluntary contraction of the quadriceps (QMVC).

Eighty-three children (15 ± 2 years old) were analyzed. Contrarily to the QMVC, neither the number of 1-MSTST repetitions nor the sit-to-stand work (1-MSTST expressed as the product of body weight) differed between genders. The QMVC was not correlated with the number of repetitions (rho = −0.056; P = 0.617) but correlated with 1-MSTST when expressed as a product of body weight (r …