It comes down to what the client’s goals are, his fitness level, medical issues, does he/she have previous injuries, availability of equipment at the location where the training takes place, etc. These are the factors I look for when I design a program for a client and not what the newest trend is out there. Functional training is great, but it’s not always the best or only type of training the client needs.
I think the term “functional training” offers a brand name to exercise that really helps sell fitness to folks who have no intention on joining a gym and lifting like hardcore lifters. The term itself allows the flexibility to applied to every single person despite the numerous goals they may have.
That being it is at the very essence for which people hire trainers. Anyone who buys personal fitness services is asking for exercises and workouts designed for what they do and who they are. That is what functional fitness is.
hope this helps,