Scholarlink

This study compared center of pressure (CoP) and accelerometer (ACC) signals during the Romberg test under eyes open (EO) and eyes closed (EC) conditions in a sample of 47 participants (age range: 13–71 years) to investigate the potential of accelerometers in assessing postural balance. Participants performed the Romberg test while standing on a modified Wii Balance Board, with a Trigno accelerometer attached to the lumbar region (L4-L5). Postural sway was assessed using indices like mean velocity, range, standard deviation, 95% confidence ellipse area, and median frequency in the mediolateral (ML) and anteroposterior (AP) directions for both CoP and ACC signals. The Shapiro-Wilk test revealed a non-normal distribution for 33 out of 36 variables, necessitating non-parametric statistical methods. Spearman’s correlation coefficients and Wilcoxon signed-rank tests were used for comparisons. Strong correlations were found between CoP and ACC indices for mean velocity (r = 0.54–0.82, p < 0.001), particularly in the ML direction and during the EC condition. Significant differences (p < 0.05) were observed between EO and EC conditions for 8 out of 9 CoP indices, while only mean velocity indices showed substantial differences in ACC measurements. The findings suggest that accelerometers can provide additional information about postural balance, particularly regarding mean velocity and the ML direction. However, they may not be as responsive to changes in visual conditions as CoP measures. This research is a significant step toward understanding the potential of ACC as an alternative to traditional force platforms in clinical settings and underscores the need for further validation.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparing Center of Pressure and Accelerometer Signals in Assessing Postural Balance During the Romberg Test

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • José Abraham Morales Jiménez,
  • Ada Michelle Velázquez Flores,
  • Cristina Elizabeth Reyes Soto,
  • Rigoberto Martínez Méndez,
  • Ángel Gabriel Estévez Pedraza,
  • Juan Manuel Jacinto Villegas

摘要

This study compared center of pressure (CoP) and accelerometer (ACC) signals during the Romberg test under eyes open (EO) and eyes closed (EC) conditions in a sample of 47 participants (age range: 13–71 years) to investigate the potential of accelerometers in assessing postural balance. Participants performed the Romberg test while standing on a modified Wii Balance Board, with a Trigno accelerometer attached to the lumbar region (L4-L5). Postural sway was assessed using indices like mean velocity, range, standard deviation, 95% confidence ellipse area, and median frequency in the mediolateral (ML) and anteroposterior (AP) directions for both CoP and ACC signals. The Shapiro-Wilk test revealed a non-normal distribution for 33 out of 36 variables, necessitating non-parametric statistical methods. Spearman’s correlation coefficients and Wilcoxon signed-rank tests were used for comparisons. Strong correlations were found between CoP and ACC indices for mean velocity (r = 0.54–0.82, p < 0.001), particularly in the ML direction and during the EC condition. Significant differences (p < 0.05) were observed between EO and EC conditions for 8 out of 9 CoP indices, while only mean velocity indices showed substantial differences in ACC measurements. The findings suggest that accelerometers can provide additional information about postural balance, particularly regarding mean velocity and the ML direction. However, they may not be as responsive to changes in visual conditions as CoP measures. This research is a significant step toward understanding the potential of ACC as an alternative to traditional force platforms in clinical settings and underscores the need for further validation.