Amanda Holden displays her toned physique as she takes on the London Half Marathon

Amanda Holden, 48, laced-up her trainers this morning and headed to the starting line for the London Half Marathon.

The television presenter wore an all-black ensemble with a matching cap to join thousands of participants taking on the epic running challenge.

She added a pop of colour to her ensemble with a pair of coral-coloured trainers and wore a headphones around her neck as she posed for pictures ahead of the race.

The 13 mile run starts on Pall Mall and goes past many of the capitals most famous landmarks such as Big Ben, St Paul’s Cathedral and the London Eye before ending near Downing Street.

Amanda, who is mother to Alexa, 13, and Hollie, 7, is running the marathon today for Tommy’s charity, which funds research into stillbirth, premature birth and miscarriage.

The organisation is very close the the TV star’s heart following the tragic loss of her son Theo in 2011.

Seven months into her pregnancy with Theo, Amanda heartbreakingly suffered a stillbirth.

As part of Baby Loss Awareness Week, the presenter set up a fund called Theo’s Hope, in memory of her son, and has raised over £31,000 for the charity according to her Virgin money giving site.

She says on her page: “No-one can ‘cure’ the pain caused by losing a baby, but providing access to counselling can help parents to heal and get on with living their lives.”

Amanda is hoping to raise funds for a full-time bereavement counsellor at Tommy’s Stillbirth Research Centre in Manchester.