Physical Activity and ARTs

Obese women experience increased infertility rate and longer time to conception showing lower pregnancy and live-birth rates both in natural and assisted conceptions. Body weight loss improves not only spontaneous pregnancy rates but also those of assisted reproductive techniques (ARTs). Almost all studies refer to body weight loss due to lifestyle intervention programs consisting in hypocaloric diet and increased physical activity, whereas very little is known about the specific effects of physical activity alone on human reproduction. In a previous retrospective study, we demonstrated that physical activity enhances the reproductive performance of obese infertile patients who receive in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) cycles, regardless of body weight loss. The aim of this randomized controlled trial (RCT) will be to evaluate if a structured exercise program improve the effectiveness of ARTs.