Successful 6-Month Endurance Training Does Not Alter Insulin-Like Growth Factor-I in Healthy Older Men and Women

Abstract

Within-subject basal levels of IGF-I in healthy seniors were extremely stable between pre- and post-training assessments. Two endurance training protocols of magnitudes sufficient to significantly increase aerobic capacity and decrease measures of body adiposity did not significantly increase basal levels of IGF-I in healthy older men and women.