If you’re in two minds about working out because you feel that you’re short on time, then this high intensity resistance training (HIRT) workout is for you. Not only will it stimulate all the muscles in your body, including your upper body, lower body and core, but it’ll only take you 30 minutes to complete. All you need is a pair of dumbbells, two large water bottles or even a pair of kettlebells will do – you choose!
While HIIT usually focuses on bodyweight exercises and cardio movements, HIRT incorporates free weights, like dumbbells or resistance bands. "HIRT maximizes energy expenditure, resulting in optimal calorie burn and cardiovascular output during your training sessions," says TRX Training. It's also a lot lower impact than HIIT too, as it doesn't involve high-impact cardio exercises, like burpees. It's therefore a good alternative if you suffer from joint pains, as you still get the cardiovascular benefits and weight training, without the high impact.
