EXPERIENCE You are no longer just having a workout. Like at a hotel, it comes with all the bells and whistles of a personalised service – concierge, amenities and customer service that is, for once, actually quite good. STUDIO Because ‘gym’ will no longer suffice. Not luxe enough, you see. TRAIN Remember when we used to ‘work out’, or just ‘go to the gym’? Now we ‘train’. What for? Who knows, but it sounds better. GAINZ OK, not strictly speaking a boutique fitness term but such a popular part of the modern gym lexicon that it bears explaining. Referring to your muscle growth, it’s a term best avoided unless your name’s Matty and you have barbed wire un-ironically tattooed on your upper arm. With your fitness upgrade comes a new way of communicating. Get to know the cool kid’s gym speak so you don’t look a fool on your first session.