After another season of many injuries and criticism of how they handle players’ health, the Mets have hired a specialist to address the concerns by revamping their medical and training procedures.

The specialist, Jim Cavallini, a former fitness expert at EXOS — a private company that works with elite athletes and the military and uses advanced medical analytics — will be the team’s first-ever director of high performance, according to several people familiar with the move. They were not allowed to talk publicly about the hiring because the team had not yet announced it.

Cavallini, among other measures, is expected to bring the Mets in line with several other teams and leagues by using biometrics — the gathering of a range of data from players’ bodies — and training technology to improve players’ health and performance.

His position was created in response to a rash of injuries last season in which the Mets’ communication, medical care and oversight of training were called into question by players, fans, agents and commentators.