Influence of Physical Exercise on Semen Quality

all candidates for sperm donors clinic IVI IVI Bilbao and Valencia were will provide the international physical activity questionnaire (IPAQ) attached to analyze the total physical activity. This will be self-completed questionnaire beforeSperm donation. (Appendix 1) Age, snuff, weight, BMI, alcohol, drug use and the type of sport that practices will be analyzed: Additionally a tab for each donor collecting the existence of associated factors be drawn. (Appendix 2)