Initially seen as a male participant sport women have long held leadership and support roles within football in Africa.

Because of firefighting's predominantly male participants, firefighters used to be called firemen.

Volleyball in the United States is popular with both male and female participants of all ages.

In this experiment, they had male participants walk across two different styles of bridges.

Originally it included only male participants but starting with the 1969-1970 academic year women began competing as well.

She also stated that Kohlberg's founding study consisted of largely male participants.

However this effect was somewhat reduced among male participants.

Another test was done, a male participant, chosen from a group of 80, was given anticipated shocks.

In a 1936 fishing derby, there were more male participants than female participants.

In the game, two male participants who did not know each other were each given 10 units of money.