Field estimation of cardiorespiratory fitness in young females, eight to eleven years of age
Notice bibliographique
Résumé
The purpose of this study was twofold: 1. To determine the validity of the 9 minute and 12 minute timed runs and the 1600 metre distance run as predictors of peak oxygen uptake and therefore as measures of cardiorespiratory fitness in girls 8 to 11 years of age. 2. To determine the reliability of the 9 minute and 12 minute timed runs and the 1600 metre distance run as measures of cardiorespiratory endurance. Hypotheses were formulated from these two major purposes as well as from additonal problems which included: (i) studying the relationship between the timed/distance runs and peak oxygen uptake as the distance and time components of the runs increased, (ii) determining the intercorrelatons between two different timed or distance runs with respect to the distance and the length of time spent running. Sixty female subjects from Crofton House School and St. Patrick's Elementary School, Vancouver, B.C., were tested on the three timed/distance runs, the 9 minute, 12 minute and,1600 metre runs and a peak oxygen uptake treadmill test. Anthropometric measures (height, weight and percent body fat) were also taken. Prior to the timed/distance run testing all of the subjects were taught the concept of paced running and had four practise runs to practise this concept. Twenty of the subjects completed all the testing. The validities of the 9 minute, the 12 minute and the 1600 metre runs as predictors of peak oxygen uptake and the interrelationships between all the variables were determined by developing a correlation matrix. Stepwise multiple regression analyses were conducted to select the independent variables (age, height, weight, percent body fat, 9 minute timed run, 12 minute timed run and the 1600 metre distance run) that best predicted the dependent variable, peak oxygen uptake. The reliabilities of the 9 minute, the 12 minute and the 1600 metre runs were determined by developing test-retest reliability correlation coefficients. The results indicated that all three timed/distance runs were significantly correlated with peak oxygen uptake. The 9 minute timed run exhibited the highest correlation with peak oxygen uptake followed by the 1600 metre distance run and the 12 minute timed run. Both the 1600 metre distance run and the 12 minute timed run showed significant test-retest reliability correlations, therefore were reliable predictors of peak oxygen uptake in girls 8 to 11 years-of age. The intercorrelations between the timed and distance runs showed the 9 minute timed run and the 1600 metre distance run having the highest degree of relationship followed by the 1600 metre distance run and the 12 minute timed run and finally the 9 minute and 12 minute timed runs. In conclusion both the 1600 metre distance run and the 12 minute timed run were considered to be reliable field tests and predicted peak oxygen uptake in girls 8 to 11 years of age. The 1600 metre distance run exhibited higher validity and reliability correlations and therefore would be the preferred field test of cardiorespiratory fitness in girls 8 to 11 years of age.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,002 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,002 | 0,001 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».