Enter Speedflex, a studio that offers workouts based around a resistance machine that only gives what it takes. Give it hell with powerful guns and it'll pile on the resistance. If you're only just discovering you even have the muscles to move the machine, it will resist to match your efforts. Ultimately, you could have Mr. Universe on one side, granny on the other, and they'll both be working proportionally as hard as each other.
How could you tell? During each class, everyone wears a heart rate monitor that tracks your efforts during the class. This data is linked to screens in the studio, which display the percentage you're working at. The idea isn't to compete (although I'm sure some have) but to try and work your body at different rates for a certain length of time throughout the class. The harder you work, of course, the more rewards you'll reap.
This place is all about the numbers. Before your first Speedflex class, you'll be taken through an induction where you get a taster of the machines but also have things like your muscle mass, fat percentage and even your state of hydration measured. After a few weeks of training, you can have this all measured again and look at black and white results.
And you certainly will be seeing results, Speedflex works you hard. The classes use a circuit system, where you'll work for short sharp bursts on each exercise, working every inch of your body. Before you know it, in a 45 minutes class, you've done countless reps of at least 12 different drills.
It's the type of workout that would have you aching for days afterwards. Sure enough, the next day I hesitated before inevitably stiffly rolling out of bed...but there wasn't a sore muscle to be had. Because the machines offer no impact and carefully administer the correct resistance, you will apparently never ache after a session. I definitely won't miss walking like a penguin the day after a good sweat.
Bring your mum, gran and fitness-mad friends, your induction and first class is free. For more information on Speedflex, click here.