Résumé :
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[BDSP. Notice produite par INIST-CNRS R0xJGH98. Diffusion soumise à autorisation]. Background We examined : (i) the usefulness of the International Fitness Scale (IFIS) to correctly rank adolescents into physical fitness levels ; (ii) the capacity of the IFIS for predicting cardiovascular disease (CVD) risk ; and (iii) the reliability of the IFIS in adolescents. Methods The study comprised 3059 adolescents (aged 12.5-17.5 years) from nine European countries (HELENA study). Blood samples were collected in one-third of the participants (randomly selected, n=981). Test-retest reliability of the IFIS was studied in a separate sample of 277 adolescents. Physical fitness-cardiorespiratory fitness (CRF), muscular fitness (MF), speed-agility (SP-AG), flexibility and overall fitness-was self-reported using 5-point Likert-scale questions (1=very poor, 5=very good) and measured using standard field-based tests. The CVD risk factors measured included total/central adiposity indices and mean arterial pressure, total and high density lipoprotein cholesterol, triglycerides, insulin resistance (HOMA) and C-reactive protein. Results Analysis of covariance showed that adolescents reporting better fitness had higher measured fitness levels for all the variables studied (all P
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