Kaitlyn D’Onofrio

DocwireNews

<a href="https://www.docwirenews.com/docwire-pick/cardiology-picks/cardiorespiratory-fitness-lacking-in-more-than-60-percent-of-youth/">Routine exercise</a> is correlated with a reduced risk for cancer and, among patients already diagnosed with cancer, reduced mortality risk. However, according to a new study, cancer patients may not be accurately self-reporting their physical activity.The researchers compared outcomes of the &ldquo;Physical Activity Scale for the Elderly&rdquo; (PASE) questionnaire versus data obtained from accelerometers. The PASE questionnaire is a brief survey that asks questions about the frequency and duration of relaxation time as well as household and work-related activities. However, &ldquo;A disadvantage of self-reported questionnaires is that they are prone to recall bias, response shift, and social desirability bias,&rdquo; the authors noted. Accelerometers use raw data to report outcomes, but &ldquo;accelerometer assessments are expensive and [labor] intensive, because they have to be initialized before and read out after use, followed by data processing and analysis.&rdquo;Comparisons between the two tools were made in 403 patients from the REACT (Resistance and Endurance Exercise After Chemotherapy; n=227), the EXIST (Exercise Intervention After Stem-Cell Transplantation; n=74), and NET-QUBIC (NEtherlands QUality of Life And Biomedical Cohort Studies In Cancer; n=102) studies. The total PASE questionnaire score and accelerometers (total minutes per day &gt;100 counts) were used to evaluate physical activity.The mean (SD) age of the patients was 56 (11) years; 58% of patients were female. The most common cancer type was <a href="https://www.docwirenews.com/hematology-oncology/chemotherapy-may-be-a-viable-treatment-option-for-male-breast-cancer/">breast cancer</a> (36%), followed by <a href="https://www.docwirenews.com/hematology-oncology/perceptions-of-telemedicine-among-head-and-neck-cancer-patients/">head and neck cancer</a> (25%) and <a href="https://www.docwirenews.com/hematology-oncology/anti-cd19-car-t-cells-b-cell-lymphoma/">lymphoma</a> (13%). The mean (SD) PASE questionnaire score was 95.9 (75.1); the mean (SD) accelerometer-assessed physical activity was 256.6 (78.8) minutes of physical activity per day.&ldquo;The agreement between the PASE questionnaire and accelerometer-assessed physical activity expressed in min/day was significant but poor (B&nbsp;= 0.36, 95%CI = 0.27; 0.44,&nbsp;p&nbsp;&lt; 0.01),&rdquo; the researchers observed. &ldquo;The agreement between the PASE score and accelerometer output expressed in counts per minute was also poor (B&nbsp;= 0.26, 95%CI = 0.17; 0.35,&nbsp;p&nbsp;&lt; 0.01).&rdquo;The study was published in <a href="https://link.springer.com/article/10.1007/s00520-019-05203-3">Supportive Care in Cancer</a>.The study authors concluded that the study &ldquo;implies that both measurement methods do not measure the same construct and that they cannot be used interchangeably.&rdquo; They recommended instead that both methods be used in conjunction with one another for the most accurate outcomes.

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Routine exercise is correlated with a reduced risk for cancer and, among patients already diagnosed with cancer, reduced mortality risk. However, according to a new study, ...

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