
It’s easy to think that you need to spend hours in the gym to carve out some upper body muscle, especially thanks to the likes of social media. Well, we’re here to tell you it’s all smoke and mirrors – this 30-minute strength-based circuit from James Stirling, AKA the London Fitness Guy, won’t just leave your arms, back, chest, and shoulders with an insane pump, but prove you don’t need marathon sessions to build strength.
However, circuits aren’t just a time-saving ticket for muscle gains, they can boost your general fitness and even reduce body fat. A review published in the Biology Journal, which looked at over 45 studies, found that two to three resistance-based circuit training sessions per week successfully lowered people's body fat by up to 4.3%, as well as improved their VO2max by 6.3% and aerobic performance by 2.6%. So, if you want to get fitter and stronger in minimal time, strength circuits are ideal for