Kirsten L Johansen1, Patricia Painter2, Cynthia Delgado3, Julie Doyle4. 1. Division of Nephrology, University of California San Francisco and San Francisco VA Medical Center, San Francisco, California; United States Renal Data System Nutrition Special Studies Center, University of California, San Francisco, California. Electronic address: kirsten.johansen@ucsf.edu. 2. Department of Physical Therapy, University of Utah, Salt Lake City, Utah. 3. Division of Nephrology, University of California San Francisco and San Francisco VA Medical Center, San Francisco, California. 4. United States Renal Data System Nutrition Special Studies Center, University of California, San Francisco, California.
Abstract
OBJECTIVES: Physical activity questionnaires usually focus on moderate to vigorous activities and may not accurately capture physical activity or variation in levels of activity among extremely inactive groups like dialysis patients. DESIGN: Cross-sectional study. SETTING: Three dialysis facilities in the San Francisco Bay Area. SUBJECTS: Sixty-eight prevalent hemodialysis patients. INTERVENTION: We administered a new physical activity questionnaire designed to capture activity in the lower end of the range, the Low Physical Activity Questionnaire (LoPAQ). MAIN OUTCOME MEASURE: Outcome measures were correlation with a validated physical activity questionnaire, the Minnesota Leisure Time Activity (LTA) questionnaire and with self-reported physical function (physical function score of the SF-36) and physical performance (gait speed, chair stand, balance, and short physical performance battery). We also determined whether patients who were frail or reported limitations in activities of daily living were less active on the LoPAQ. RESULTS: Sixty-eight participants (mean age 59 ± 14 years, 59% men) completed the study. Patients were inactive according to the LoPAQ, with a median (interquartile range) of 517 (204-1190) kcal/week of physical activity. Although activity from the LTA was lower than on the LoPAQ (411 [61-902] kcal/week), the difference was not statistically significant (P = .20), and results from the 2 instruments were strongly correlated (rho = 0.62, P < .001). In addition, higher physical activity measured by the LoPAQ was correlated with better self-reported functioning (rho = 0.64, P < .001), better performance on gait speed (rho = 0.32, P = .02), balance (rho = 0.45, P < .001), and chair rising (rho = -0.32, P = .03) tests and with higher short physical performance battery total score (rho = 0.51, P < .001). Frail patients and patients with activities of daily living limitations were less active than those who were not frail or limited. CONCLUSIONS: The LoPAQ performed similarly to the Minnesota LTA questionnaire in our cohort despite being shorter and easier to administer.
OBJECTIVES: Physical activity questionnaires usually focus on moderate to vigorous activities and may not accurately capture physical activity or variation in levels of activity among extremely inactive groups like dialysis patients. DESIGN: Cross-sectional study. SETTING: Three dialysis facilities in the San Francisco Bay Area. SUBJECTS: Sixty-eight prevalent hemodialysis patients. INTERVENTION: We administered a new physical activity questionnaire designed to capture activity in the lower end of the range, the Low Physical Activity Questionnaire (LoPAQ). MAIN OUTCOME MEASURE: Outcome measures were correlation with a validated physical activity questionnaire, the Minnesota Leisure Time Activity (LTA) questionnaire and with self-reported physical function (physical function score of the SF-36) and physical performance (gait speed, chair stand, balance, and short physical performance battery). We also determined whether patients who were frail or reported limitations in activities of daily living were less active on the LoPAQ. RESULTS: Sixty-eight participants (mean age 59 ± 14 years, 59% men) completed the study. Patients were inactive according to the LoPAQ, with a median (interquartile range) of 517 (204-1190) kcal/week of physical activity. Although activity from the LTA was lower than on the LoPAQ (411 [61-902] kcal/week), the difference was not statistically significant (P = .20), and results from the 2 instruments were strongly correlated (rho = 0.62, P < .001). In addition, higher physical activity measured by the LoPAQ was correlated with better self-reported functioning (rho = 0.64, P < .001), better performance on gait speed (rho = 0.32, P = .02), balance (rho = 0.45, P < .001), and chair rising (rho = -0.32, P = .03) tests and with higher short physical performance battery total score (rho = 0.51, P < .001). Frail patients and patients with activities of daily living limitations were less active than those who were not frail or limited. CONCLUSIONS: The LoPAQ performed similarly to the Minnesota LTA questionnaire in our cohort despite being shorter and easier to administer.
Authors: S N Blair; W L Haskell; P Ho; R S Paffenbarger; K M Vranizan; J W Farquhar; P D Wood Journal: Am J Epidemiol Date: 1985-11 Impact factor: 4.897
Authors: L P Fried; C M Tangen; J Walston; A B Newman; C Hirsch; J Gottdiener; T Seeman; R Tracy; W J Kop; G Burke; M A McBurnie Journal: J Gerontol A Biol Sci Med Sci Date: 2001-03 Impact factor: 6.053
Authors: K L Johansen; G M Chertow; A V Ng; K Mulligan; S Carey; P Y Schoenfeld; J A Kent-Braun Journal: Kidney Int Date: 2000-06 Impact factor: 10.612
Authors: Kirsten L Johansen; George A Kaysen; Lorien S Dalrymple; Barbara A Grimes; David V Glidden; Shuchi Anand; Glenn M Chertow Journal: Clin J Am Soc Nephrol Date: 2012-11-02 Impact factor: 8.237
Authors: Mara A McAdams-DeMarco; Andrew Law; Megan L Salter; Brian Boyarsky; Luis Gimenez; Bernard G Jaar; Jeremy D Walston; Dorry L Segev Journal: J Am Geriatr Soc Date: 2013-05-27 Impact factor: 7.538
Authors: Kirsten L Johansen; Cynthia Delgado; George A Kaysen; Glenn M Chertow; Janet Chiang; Lorien S Dalrymple; Mark R Segal; Barbara A Grimes Journal: J Gerontol A Biol Sci Med Sci Date: 2019-02-15 Impact factor: 6.053