Moderate-to-Vigorous Physical Activity Among Postmenopausal Women: Discrepancies in Accelerometry-Based Cut-Points

in Journal of Aging and Physical Activity
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The objective of this study was to compare moderate-to-vigorous physical activity (MVPA), minutes per week (min/wk), and fulfillment of the current recommendation (150 min/wk of MVPA) based on different cut-points in postmenopausal women. The sample was composed of 233 postmenopausal women aged 59.8 ± 6.7 years old. MVPA was measured using triaxial accelerometers. Accelerometers were initialized to collect in 60-s epochs. Participants were included if using at least 5 days. MVPA min/wk were obtained using Freedson, Troiano, Copeland, and Sasaki cut-points. Box-plot indicated large mean differences between almost all cut-points, except for Freedson and Troiano (9.3 [95% LoA: –5.6; 24.3] min/wk). The proportion of women who achieved 150 min/wk of MVPA was similar between Freedson and Troiano (31% vs. 30%). Sasaki and Copeland cut-points resulted in a greater proportion than other cut-points. We concluded that the cut-points analyzed generated different results in MVPA min/wk and low agreement when using current guidelines for MVPA pattern classification, except for the comparisons between Freedson and Troiano cut-points.

Diniz and Rossi are with the Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900, Presidente Prudente, SP, Brazil; and the Exercise and Immunometabolism Research Group, Department of Physical Education, Sao Paulo State University (UNESP), 19060-900, Presidente Prudente, SP, Brazil. Da Costa Rosa is with the Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP, Brazil. Mota is with the Research Center in Physical Activity, health and Leisure (CIAFEL)-Faculty of Sports, Porto University-Portugal. Freitas-Junior is with the Center of Studies and Laboratory of Evaluation and Prescription of Motor Activities (CELAPAM), Department of Physical Education, Sao Paulo State University (UNESP), 19060-900, Presidente Prudente, SP, Brazil.

Address author correspondence to Tiego A. Diniz at tiegodiniz@gmail.com.