The phrase "actively trains" is correct and usable in written English.
It can be used to describe someone who is engaged in training or preparing for a specific activity or skill on a regular basis.
Example: "She actively trains for marathons, dedicating several hours each week to her running regimen."
Alternatives: "regularly trains" or "consistently trains".
And – parti pris even more, but to hell with it – I'd suggest that publishers use the Society of Indexers as a gold standard: it not only organises an annual conference but actively trains new indexers in the skills required, offers qualifications and a complaints procedure, and provides mutual support for those who do this important work.
The PI is still publishing [and] actively trains students, but the work is no longer what anyone would call 'at the frontiers.' ".
Though it's well known that the CIA actively trains many of the rebel group's seeking to overthrow the Assad regime. .
While I was actively training, I was too busy to notice how fit I felt.
New information does suggest that Mr. Hussein was actively training terrorists to attack American interests throughout the 1990's.
While actively training in Mexico City, López rises early and makes her way to Plaza Mexico, the world's largest bullring.
Mr. Chouchane, 35, was probably killed in the attack on the compound, where up to 60 militants had been actively training for a terrorist operation, the Pentagon said.
It's also the case that the United States has been actively training foreign law enforcement agencies on terror prevention since 9/11.
The exact type of device remains unclear, but the request said the training was "vital to the sheriff's office" and that "only" one other employee at the office was "actively trained in this equipment".
To evaluate differences in the incidence of headache, trigeminal nerve mechanosensitivity, and temporomandibular functionality in professional male boxers (exposed to repetitive craniofacial trauma) who were actively training and without severe previous injuries compared with handball players.
Examples of legitimate targets, Brennan said, include operational leaders of al-Qaeda, potential attackers who are actively training and militants who have "unique operational skills," such as expertise in designing bombs that might elude airport security.
