Cram J R, Garber A
Biofeedback Self Regul. 1986 Jun;11(2):105-14. doi: 10.1007/BF00999978.
This study examined the correlation between EMG values measured with wide (25-1000 Hz) and narrow (100-200 Hz) band-width filters. An EMG diagnostic scan was conducted on 32 chronic pain patients admitted to an inpatient treatment unit. EMG readings were taken from a total of 44 sites (11 sites X 2 sides X 2 postures). Each EMG measure was passed in parallel through a narrow and wide band-pass filter and the stable readings were recorded. Correlated t tests and Pearson correlations were used to compare the data from the narrow and wide filter settings. The measures from the wide filter were significantly higher than the measures from the narrow filter. In addition, 61% of the correlations were greater than .90. The majority of the correlations below the median (.93) occurred in the neck region and the abdomen. The implications of the findings are discussed.
本研究考察了使用宽（25 - 1000赫兹）带通滤波器和窄（100 - 200赫兹）带通滤波器测得的肌电图（EMG）值之间的相关性。对入住住院治疗单元的32名慢性疼痛患者进行了肌电图诊断扫描。总共从44个部位（11个部位×2侧×2种姿势）获取肌电图读数。每次肌电图测量都并行通过一个窄带通滤波器和一个宽带通滤波器，并记录稳定读数。使用相关t检验和皮尔逊相关性来比较窄滤波器设置和宽滤波器设置的数据。来自宽滤波器的测量值显著高于来自窄滤波器的测量值。此外，61%的相关性大于0.90。中位数（0.93）以下的大多数相关性出现在颈部区域和腹部。讨论了这些发现的意义。
