A Review of Accelerometer-based Activity Monitoring in Cancer Survivorship Research

Background In the cancer survivorship context, physical activity and sedentary behaviour have been measured using different methods and tools. Purpose To conduct a narrative review of published research in cancer survivor populations to summarise the quality and identify gaps in reporting on accelerometer data collection, data processing, and outcome measures in cancer survivors. Methods An initial PubMed® search of papers published in English was conducted in January 2017, and a final search was conducted in May 2017. Variables extracted included study characteristics, methods for accelerometry data collection (e.g., device used), data processing (e.g., cut points used), and data reporting (e.g., time spent in different activity intensities). Results A total of 46 papers were eligible for inclusion in the review. The majority of studies (34 of 46) targeted a single cancer group and 18 of these 34 studies were in survivors of breast cancer. Half of the studies (54%) used an ActiGraph® accelerometer. Methods of accelerometer data processing varied across studies. Definitions of non-wear time, vectors used during processing, and filters applied during processing were reported by 51%, 60% and 8% of studies, respectively. Most studies reported MVPA (78%), 50% reported sedentary time, and 43% reported light intensity activity. Cut points to categorise these activities varied between studies. Conclusion This narrative review highlights inconsistency in the methods used to collect, process, and report accelerometry data across cancer survivor studies. Accelerometry has potential to add detailed knowledge of the levels and patterns of physical activities and sedentary behaviours across the cancer spectrum. Recommendations are made to improve data processing and reporting methods to maximise the scientific validity of future accelerometer research in this field. Corresponding author: A/Prof Jeff Vallance, Faculty of Health Disciplines, Athabasca University, 1 University Drive, Athabasca, AB, Canada, T9S-3A3, email: jeffv@athabascau.ca Phone: +1 (403) 977-4338 Peddle-McIntyre and Cavalheri are supported by Cancer Council of Western Australia Postdoctoral Research Fellowships. Boyle is supported by a National Health and Medical Research Council Early Career Fellowship (1072266). Jeffery is supported by an Australian Lung Foundation and an Edith Cowan University PhD scholarship. Lynch is supported by a National Breast Cancer Foundation Fellowship (ECF-15-012). Vallance is supported by the Canada Research Chairs Program. The results of the study are presented clearly, honestly, and without fabrication, falsification, or inappropriate data manipulation. The results of the present study do not constitute endorsement by ACSM. Accepted for Publication: 9 April 2018 © 2018 American College of Sports Medicine

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