Quantifying Balance Control in Concussed Varsity Athletes
Notice bibliographique
Résumé
Previous research has demonstrated that even at return to play (RTP), there are continued balance control deficits in previously concussed athletes. However, these deficits were only distinguishable using higher order measures, which might have been missed using traditional measures (Powers et al., 2013). Higher-order analyses provide better insights into the neural control of balance. Sparato and colleagues (2013) quantified the number of lateral posture adjustments (PA) during a stepping task and found young adults tend to elicit one PA whereas older adults with history of falls tended to use two. PURPOSE: To determine whether a PA measure can distinguish control differences between groups of young adults during gait initiation (GI) task. HYPOTHESIS: During GI, concussed individuals will make more PA than non-athletes and baseline athletes, respectively. METHOD: Participants were all females (17-24 years) and included: varsity soccer players (N=28, baseline), non-athletes (N=6), and concussed soccer players during the symptomatic phase (N=3). Participants were asked to stand quietly on a Bertec force plate (FP) with their feet together and hands by their sides with their eyes open or closed for 45s. After 45s, an auditory cue sounded and participants initiated gait from the FP by taking two steps. Postural adjustments made during the gait initiation phase were calculated using the vertical force and counting the number of inflection points from the start of GI to when the participants were completely off the FP. Participants were taken from three groups: Baseline Female Laurier Varsity Soccer Players, Non-Athletes, and Concussed Varsity Athletes at the asymptomatic and RTP stage of recovery. RESULTS: During eyes open, non-athletes made more PA than the baseline athletes (p=.034) but concussed soccer players were not different from the baseline athletes (p=.13). With eyes closed, all participants produced similar number of PA. CONCLUSSION: These preliminary findings suggest that a PA measurement during GI can distinguish athletes from non-athletes and hopefully with more concussed athlete participants, may be able to distinguish between concussed and non-concussed athletes. If this is true, this would be an effective measure to not only determine if an athlete is concussed, but also to determine if the concussed athlete is ready to return to activity.
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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 | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 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 | 0,001 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 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 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 ».