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'Fitness trackers can backfire in weight loss plan'

Fitness trackers designed to help people keep in shape offer no useful weight-loss benefit, a study has suggested.

The two-year study of 471 overweight people found devices such as fitness trackers, which are worn on the wrist like a watch, may not offer an advantage over standard behavioural weight-loss approaches.

Participants were placed on a low-calorie diet, prescribed increases in physical activity and had group counselling sessions as part of the study.

Six months into the study, half of the volunteers were given a fitness tracker to monitor their progress.

But researchers with the University of Pittsburgh found those provided with wearable technology lost less weight than the control group by the end of the trial.

Specifically those with the fitness trackers lost on average 3.5kg, while those left to their own monitoring lost 5.9kg on average.

Lead researcher Dr John Jakicic said it was possible those using fitness trackers may have felt they were able to reward themselves with “treats” more than other participants, prompting lower levels of weight loss.

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