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Indicated pooled ES and CI.95 for effectiveness to induce improvements in aerobic fitness, VO2max, based on the various training durations (indicated by @ and then number of weeks of training) of exercise. Indication of a positive ES shows favor for the use of intervention, while negative ES shows favor toward not utilizing said intervention. ET indicated by ●, RT indicated by ♦, E+R indicated by ■, and All Ex indicated by ▲.
