Speed of Workouts
Circuit training requires the person to switch machines, also called stations, every 30 to 45 seconds. If you are a gym member, it will be difficult to use the gym's equipment for this form of exercise. Most people at the gym use each machine for a varied amount of time. Cardiovascular machines are used for 30 minutes at a time. Other weight machines might be used for 10 to 30 minutes. So finding enough machines available when it is time to switch stations may be difficult.
Requires Expensive Equipment
Since circuit training is difficult to do at the gym, unless you belong to a gym specializing in circuit training, you will need to purchase the equipment to use at home. Buying each piece of equipment gets expensive and may not be worth the price you pay for the workout. You will need to purchase between six and 10 pieces of workout equipment for a successful circuit.
Space Required for Workouts
If you decide to do circuit training at home, you also will need a lot of space. Workout machines are large and heavy. For a successful circuit training area at home, it would require a large empty room, or the majority of your garage. The machines will fit around the room in a circle, leaving enough room to get in and out of each machine, and stretch when necessary.
Doctor Permission Required
As with any new workout routine, you should consult a doctor before beginning. With circuit training, because of the speed of the workout, people with high blood pressure or heart problems are not advised to use this method of working out. The person will need to be relatively healthy to begin with for circuit training, making this a big disadvantage for those people who are just starting their healthy lifestyle.