0019 Circadian Effect on Penalties in the NHL
Notice bibliographique
Résumé
Abstract Introduction There is a growing recognition of the significant impact of circadian rhythms on professional athletic performance, where teams crossing multiple time zones for a game play at a different circadian alignment that their opponents. In the NHL, teams frequently travel and often don’t return home between games. Few studies have explored which aspects of athletic performance and behavior are affected by circadian misalignment. The objective of this study was to investigate whether NHL teams show a circadian penalty disadvantage, controlling for the direction of team travel from the previous game. Methods Data from NHL games played between 2009 and 2021 (n=27,642), excluding those played during the COVID season, were extracted from online sources (hockey-reference.com). As described by Charest et al. (2022), a travel-adjusted time zone was computed for both teams, from which a Direction of Misalignment (westward, none, eastward) between teams was computed. A one-way ANOVA was used with the Direction of Misalignment on the number and the minutes of penalties. Results When there is a travel-adjusted time zone difference between the two teams, there is a significant difference in the penalty minutes, F(2,27640)=4.77, p<.008 and number of penalties received by the team, F(2,27640)=10.88, p<.001. Tukey post-hoc t-tests reveal that teams whose circadian alignment is westward to their opponent had more penalty minutes (p=.006) and receive significantly more penalties (p<.001), than those who experienced no time zone difference with their opponents. Teams whose circadian alignment is westward to their opponent also received more penalties than those whose alignment is eastward to their opponent (p<.001). Conclusion These results suggest that teams playing at a later part of their circadian time than their opponents receive more penalties. This study offers insight on the necessity for members of professional organizations to better understand the potential impact of sleep and travels on behavior and overall performance outcomes during matches. Future studies should focus on strategies for optimizing athletes’ circadian alignment, such as personalized travel schedules and light exposure protocols. Support (if any)
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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 ».