Should have clear instructions and be easy to read and use. You don't want information to be awkward to access while walking or running.
Some models list factors like distance, speed and time as programs. Other listed programs are just time-based. You might find a range of programs useful if you want the treadmill to plan a session for you. If you have your own fitness plan, these programs might not be much use to you.
Automatically adjusts the intensity of your workout to keep you in the recommended heart rate zone, so you can be sure you're getting a worthwhile cardio workout for your fitness level.
Some treadmills have recovery programs that test your physical condition by assessing how quickly your pulse returns to normal after you've been exercising.
Try the machine in the shop. Walk and jog on it to ensure the machine feels stable, smooth and sturdy when you're walking and jogging.
The belt needs to be long and wide enough for the heaviest, tallest and fittest user. If you're buying for someone else, take them shopping with you and have them do a test run, too.
A well-cushioned deck is designed to absorb the force of your step, and is said to protect your joints and ligaments from damage –important for people using the treadmill a lot. More importantly, using the correct running technique helps to reduce injury to joints and ligaments.
Manufacturers generally have their own unique type of suspension/cushioning system.
The panels either side of the belt should be wide enough for you to stand on, so you can get your balance before stepping on the treadmill.
The belt shouldn't slow down too much when your foot hits it. Treadmill belts generally come pre-lubricated. Follow the manufacturer's instructions about when to apply more lubricant and what type of lubricant to buy.
For fast jogging or running, you'll want a machine that reaches at least 16km/h. If you'll only ever be walking or slow jogging, 10km/h should be enough. If you're a serious runner, try the machine's top speed before you buy to make sure it feels fast enough for you.
Treadmills are designed to tolerate different loads. A machine with a higher maximum user weight will generally cost a bit more. Exceeding the maximum user weight could seriously damage the treadmill or cause injury to the user. A more powerful motor will generally take more punishment and last longer.
For runners, (as opposed to joggers) or reasonably heavy users, a motor of at least 2.0 HP continuous (not peak) duty is highly recommended.
Have a good listen while it's running in the shop and determine if the noise is going to be an issue to you, and/or your family, and a reason for you to stop using the treadmill.
The incline function adds intensity to your workout by adding in a 'hill', helping to add a bit of interest to your walk or run. A motorised or power incline lets you vary the incline easily while exercising. If you opt for a treadmill that you need to incline manually, you'll have to stop your workout and get off the treadmill to adjust it. However, these machines are generally cheaper.
Some machines have hill programs, which use incline levels to mimic a series of hills and valleys of varying lengths and gradients. These can be a great way to reach your peak performance level, and it's more fun than running at the same level all the time. For challenging hill work, look for an incline level of at least 12%.
To allow you to monitor your heart rate while exercising, pulse sensors should be in a position where you can reach them easily and they don't impede your movement while you're working out.
This is an important safety feature, and we'd strongly recommend you use the key each time you step on the treadmill. Simply attach the safety key clip to your clothes and if you slip suddenly or need to stop in a hurry, pulling the key off the treadmill will stop it instantly. Keep it out of reach when you're finished so that small children can't accidentally start the machine.
Under the mandatory standard, treadmills must display a clearly visible warning notice with the aim to alert parents to keep children away from the treadmill, even when it's not in use. The warning statement must read:
WARNING: Keep young children away from this machine at all times. Contact with the moving surface may result in severe friction burns.