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Table 1 Characteristics of the studies included in the systematic review and meta-analysis

From: The effects of exercise on circulating endocannabinoid levels—a protocol for a systematic review and meta-analysis

    Intervention characteristics Results
Publication details Study design Population characteristics Physical activity or exercise Circulating endocannabinoid levels
Title, first author, country of research, year of publication, journal, published language Experimental (randomized or controlled clinical trials) or quasi-experimental studies Source, sample size, eligibility criteria, sex (%), age (years, mean and standard deviation (total sample and/or by the group) Physical activity level (trained/untrained), health condition The number of participants in each group and type of intervention (anaerobic, aerobic, interval) Protocol (intensity [lactate, percentages of peak heart rate (peak HR), reserve HR (Karvonen), ventilatory thresholds in the cardiopulmonary test, percentage of power (Watt) and maximum repetition, subjective feeling of effort (Borg), others], session duration (minutes), session frequency, intervention duration (weeks)) Summary data for each group, the difference between groups and/or change between baseline and post-intervention (mean and standard deviation, P-value, interquartile range, standard error and/or interval confidence)