"sufficient participation" is correct and usable in written English.
You could use it to describe the minimal amount of involvement required to participate in a particular activity, for example, "In order to pass the class, students must demonstrate sufficient participation in class discussions and group activities."
They do not enable the claimant's sufficient participation.
43.3% of respondents met CDC/WHO criteria for sufficient participation in aerobic PA.
Some people expressed concern that the significant role played by young people in launching the revolution has not been translated into sufficient participation in the political process.
Such programs are part of a growing suite of agri-environmental or payment-for-environmental services schemes, which can be an effective and efficient way of complementing the formal nature reserve system, provided they attract sufficient participation.
Just as with our regular survey, schools with sufficient participation rates are given individual school reports detailing the survey results for their school.
We oversampled individuals classified as Black/African American or Hispanic in order to assure sufficient participation from these groups to allow for comparisons by race and ethnicity.
Previous studies have focused on barriers to trial participation in studies that had failed to recruit sufficient participants.
In the majority of schools who participated, principal's approval and child's assent were seen as sufficient for participation in activities.
The three sports were deemed to lack sufficient global participation and television appeal.
The maximum enrollment is 30 students to allow for sufficient student participation and support.
In early October, a $39 million contract for renovations at the Montebello Reservoir was delayed as the city faced a choice between awarding the job to a bidder without sufficient minority participation and one that had achieved its minority goals in part by including a company owned by Mr. Lipscomb.
