A GROUND-breaking trial in Southampton could revolutionise the treatment of diabetes.

Experts from Southampton General Hospital are using hi-tech under-the-skin sensors to monitor the impact exercise has on blood sugar levels.

The tiny devices will be attached to participants’ stomachs and use them in conjunction with watchlike armbands, which will check patients’ physical activity.

It is hoped the trial, the first of its kind in the UK, will shed new light on Type 1 diabetes, also known as juvenile diabetes.

Professor Byrne, head of endocrinology and metabolism at Southampton University Hospitals NHS Trust, said: “At the moment, it is uncertain how day-today variation in physical activity influences blood glucose in people with type 1 diabetes.

“But thanks to the introduction of sophisticated, light, user-friendly monitoring devices, such as the two we are trialling, we will gauge a better understanding of the link between physical activity and glucose control in diabetes.”

Thirty volunteers aged between 18 and 75 will be supplied with a glucose sensor and armband.

The glucose sensor consists of a tiny electrode, which is inserted under the skin and can take nearly 300 readings a day.

This connects to a transmitter which is attached to the skin with an adhesive patch.

Weighing less than a quarter of an ounce, the waterproof electrode and transmitter can be worn by patients for up to two weeks at a time, with the inserted sensor replaced every three days.

Professor Byrne added: “People with diabetes need help to understand the powerful influence of physical activity and exercise on glucose control and how it can play an essential part in avoiding the complications diabetes can bring.”

Type 1 diabetes occurs when the body produces no insulin at all and is often referred to as insulindependent diabetes.

It is also sometimes known as juvenile diabetes, or early onset diabetes, because it usually develops before the age of 40 and often in the teenage years.