What do sports and exercising have to do with sex?

What do sports and exercising have to do with sex?

According to research, physical activity enhances sexual arousal. CNN.com stated that sex prior to competition can actually help an athlete with mental stress. Many athletes reported that sex before a match or game actually helped the individual to relax. Did you know that the Olympic Village gave out over 150,000 condoms during the London Games? Mostly soccer and tennis players were interviewed. CNN also stated that “Sex is apart of the Olympic spirit”. USA soccer goal keeper even claimed that “there’s a lot of sex going on” referring to the London Games. Ryan Lochte, Olympic Swimmer also said that there is a lot of sex going on behind the scenes, and “sometimes you gotta do what you gotta do.”
However, Plato and Muhammad Ali have different theories. Plato, back in 444 BC said “Olympic competitors before races should avoid sexual intimacy.” Following Plato’s perception, many current day wresters and other athletes abstain from sexual activity easily to avoid distraction and mental and/or physical fatigue. At least they feel that it may help. There are also athletes that strongly disagree that sexual activity should be avoided before competition. A famous MMA fighter, Ronda Rousey, claimed that she liked to get busy in bed prior to competition. No studies have accurately proved this theory to whether sex helps mentally, but it is proven to increase testosterone levels. 
Here is a link to a video of a professional boxer, Liz, who’s blood’s testosterone level increased by 30%. Previously tested by the same group was a male boxer, who’s performance and testosterone level did increase post sex and orgasm.
Aside from athletics, how about the average joe? As men grow older, they usually produce less and less testosterone. Weight training has been known to increase testosterone levels, which increases sex drive. However, sex isn’t always going to help one weight train more efficiently. Yet, it might help one exercise better. You can also harm testosterone levels by over training. According to fitbie.com, “Research shows that exercise can boost your testosterone levels, increase blood flow “down there,” and even improve your orgasms.” For men, increasing blood flow is supposed to intensify an erection. Not only does exercise help men improve their sex life, but it also helps women. At the University of Texas Austin, a study was made where 35 women were brought in at 2 different times, and watched an erotic video during both sessions. After one session, where the women bicycled for 20 minutes before the video, blood flow levels to the vagina significantly raised, which meant a better sex drive.
What are your feelings towards sex before sports?
If you play college sports, would you participate in this?
Do you think your favorite athletes avoid sex or do they have sex before competition?
Do you think the studies done are accurate or do you think they vary per person?