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. 2021 Jan 17;31(4):1767–1789. doi: 10.1007/s11695-020-05182-z

Table 1.

PICOS criteria for the inclusion of studies

Parameters Inclusion criteria
Population Adults with severe obesity
Intervention Bariatric surgery (purely gastric restrictive and gastric bypass with intestinal transposition)
Comparator Pre-surgery versus post-surgery
Outcomes Body composition, weight loss, physical capacity and performance, physical activity level, cardiorespiratory fitness, energy expenditure, metabolic parameters, substrate use, autonomic nervous system modulation
Study design Retrospective, randomized control trial, and prospective studies