Interobserver Reliability of Peripheral Muscle Strength Tests and Short Physical Performance Battery in Patients With Chronic Obstructive Pulmonary Disease: A Prospective Observational Study

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• 作者：Francesc Medina-Mirapeix ; PhD^a ; Roberto Bernabeu-Mora ; MD^a ; ^b ; ^{rbernabeumora@hotmail.com" class="auth_mail" title="E-mail the corresponding author} ; Eduardo Llamazares-Herrá ; n ; PT^c ; M^a Piedad Sá ; nchez-Martí ; nez ; PT^a ; José ; Antonio Garcí ; a-Vidal ; PhD^a ; Pilar Escolar-Reina ; PhD^a
• 关键词：Muscle strength ; Pulmonary disease ; chronic obstructive ; Rehabilitation
• 刊名：Archives of Physical Medicine and Rehabilitation
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：97
• 期：11
• 页码：2002-2005
• 全文大小：312 K

文摘

To evaluate the interobserver reliability of the Short Physical Performance Battery (SPPB) and hand dynamometry when measuring isometric muscle strength in people with chronic obstructive pulmonary disease (COPD).

Design

Reliability study. Each patient was assessed by a pulmonology physician and a physical therapist in 2 separate sessions 7 to 14 days apart (mean, 9.8±0.8d). Each rater was blinded to the other's results.

Setting

Pneumology unit of a public hospital.

Participants

Random sample of outpatients with stable COPD (N=30).

Interventions

Not applicable.

Main Outcome Measures

SPPB and muscle strength (kg) using electronic handgrip and handheld dynamometers. Reliability was assessed with intraclass correlation coefficients (ICCs), standard error of measurement values, and Bland-Altman plots. ICCs were calculated for the SPPB summary score and for its 3 subscales.

Results

The ICCs for the overall reliability of the SPPB summary score and for grip and quadriceps strength were .82 (95% confidence interval [CI], .62–.91), .97 (95% CI, .93–.98), and .76 (95% CI, .49–.88), respectively. The standard error of measurement values were .55 points, 1.30kg, and 1.22kg, respectively. The mean differences between the rater's scores were near zero for grip strength and SPPB summary score measures. The ICCs for the SPPB subscales were .84 (95% CI, .66–.92) for the chair subscale, .75 (95% CI, .48–.88) for gait, and .33 (95% CI, −.42 to .68) for balance.

Conclusions

Interobserver reliability was good for quadriceps and handgrip dynamometry and for the SPPB summary score and its chair stand and gait speed subscales. Both pulmonary physicians and physical therapists can obtain and exchange the scores. Because the reliability of the balance subscale was questionable, it is better to use the SPPB summary score.