Good times, bad times? An evaluation of event detection strategies in time to boundary postural assessments.
Hum Mov Sci
; 92: 103151, 2023 Dec.
Article
em En
| MEDLINE
| ID: mdl-37837897
ABSTRACT
Time-to-boundary (TtB) is a popular balance metric that identifies minimum reaction times available to correct balance challenges during quiet standing. Minimum event criteria is a critical methodological consideration to determine physiologically relevant TtB outcomes yet selection methodology appears inconsistent and/or vaguely defined across studies. This study aimed to identify a robust, objective methodology to select meaningful TtB outcomes. Ninety-seven healthy adults stood quietly on a force platform with eyes open and feet together. Anterior-posterior (AP) and medial-lateral (ML) center-of-pressure data from 150 s were utilized to compute a TtB series. The MATLAB findpeaks function identified minima with and without a time delay following selected events and/or a vertical axis threshold. An individualized time delay excluded excessively large values that hold no clinically relevant information, and this effect was enhanced by a vertical threshold at 22 s. The absolute minimum TtB was unaffected by any findpeaks criteria. The recommendations implicated by these results will help improve clarity and consistency among TtB studies, thereby enhancing the applicability of clinical findings.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Equilíbrio Postural
/
Instabilidade Articular
Limite:
Adult
/
Humans
Idioma:
En
Revista:
Hum Mov Sci
Ano de publicação:
2023
Tipo de documento:
Article