0018 Time Zone Circadian Misalignment and Defensive Performance in Professional Hockey
Notice bibliographique
Résumé
Abstract Introduction Research has highlighted the impact of circadian rhythm misalignment on athletic performance in sports involving travel across time zones. Teams traveling westward often face circadian disadvantages during evening competitions, as they play at a later circadian alignment than their opponent. While previous studies have primarily focused on outcomes such as wins and losses, few have explored the effects of circadian misalignment on specific game statistics. This study investigates the influence of teams adjustment to time zones travel on the number of shots allowed to opponents. Methods Data from NHL games played between 2009 and 2021 (n = 27,642), excluding the COVID-19 season, were collected from online sources (hockey-reference.com). Travel-adjusted time zone was computed for both teams as shown in Charest et al. (2022), from which a Direction of Misalignment (westward, none, eastward) between teams was computed for each game. A one-way ANOVA was used with the Direction of Misalignment on the number of shots allowed to opponents. Results A significant effect of Direction of Misalignment was observed, F(2, 27640) = 3.26, p =.04. Teams with a circadian misalignment later than their opponents (westward alignment) allowed significantly more shots (M = 30.71) compared to teams with an earlier one (eastward alignment) (M = 30.27, p =.05). No significant difference was found between teams with a later circadian alignment and those with no difference (M = 30.39, p =.06), nor between teams with no difference and those with an earlier alignment (p =.66). Conclusion These results suggest that teams playing at a later part of their circadian alignment than their opponents allow more shots to opposing teams. This could indicate a circadian-related disadvantage that impairs defensive effectiveness on ice. Future research should investigate mechanisms to mitigate the effects of circadian misalignment in professional sports, potentially informing scheduling strategies to optimize player performance. Support (if any)
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 distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 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) | 0,000 | 0,000 |
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 tête enseignante, 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 ».