First off, what's the difference between them?
Simple enough, isolation targets just one muscle group whereas compound target multiple muscle groups.
There's been a whopping spike in the number of low-cost chain gyms opening up across the UK.
41% from 2015 to 2016! That's huge, and with membership costs as low as £16.99 per month it's becoming increasingly difficult for independent gyms to compete. At least from a cost perspective.