The phrase "after participating for" is correct and usable in written English.
It can be used to indicate a time duration following someone's involvement in an activity or event.
Example: "After participating for several weeks in the program, I noticed significant improvements in my skills."
Alternatives: "after being involved for" or "after engaging for".
EXTRA POINTS Wide receiver Plaxico Burress, who has been bothered by a badly sprained right ankle for much of the season, did not practice with the Giants on Thursday, a day after participating in practice for the first time since Sept. 12. "He did a good job yesterday, what he was able to do," Coach Tom Coughlin said.
Three world-renowned astronomers from other institutions, including NASA, took part in Skype sessions after participating in interviews for the story-based lessons.
One participant noted she "never considered [herself] an athlete before [CrossFit]" (Jo, 27 years), but that after participating in CrossFit for three and a half years, she had begun to identify as an athlete and to feel that she had better control over how her body moved physically.
Cobb said he had his change of heart this year after participating in fundraisers for friends who went bankrupt and broke because they got sick -- even though they had insurance from Blue Cross.
Table 3 presents the EQ-5D among the four groups after participating in OSCS for 6 months and 1 year.
Very few of the four groups reported extreme health problems related to mobility, self-care, usual activities, or pain and anxiety, after participating in OSCS for 6 months and 1 year.
In 2006 he was arrested and imprisoned for seven months after participating in protests calling for the establishment of an independent judiciary in Egypt.
After participating in the program for a semester, Birky said he was so "blown away" by the scope of the prison crisis in the United States that he decided to write his senior thesis on prison policy.
After participating in the show for two years and totalling 64 appearances, Tsamere announced in 2012 that he did not plan to return for its third season.
