A seven-year-old boy has wowed the internet after his mum filmed him dancing just 24 hours after undergoing brain surgery. Samuel Trimbee was recovering from an operation on his brain at London's Great Ormond Street Hospital (GOSH) when just a day after surgery he got up to take part in a workout. The Joe Wicks daily dance fitness class launched online when schools in Britain closed due to the coronavirus lockdown. His mum, Nicky Grundy told <em>The National</em> his "determination" has been amazing. “I am so proud of Samuel, he faces every obstacle with determination and was keen to do PE with Joe Wicks as soon as he could," she said. "GOSH is an incredible hospital and we’re really grateful to all the doctors, nurses and staff who care for us.” Samuel has been treated at GOSH since he was diagnosed with achondroplasia, which is a genetic condition which results in dwarfism, and hydrocephalus as a baby. He was admitted for four days last week week as part of his ongoing treatment. The youngster is part of the Dwarf Sports Association and loves Joe Wicks’ PE classes, his mother added. "He was keen to get exercising shortly after surgery," she said.<br/> "I always knew he'd inspire me. 24 hours after brain surgery he's giving a mini Joe Wicks workout a go," she tweeted earlier. "Yesterday he was on morphine, today he does this. He never gives up." When fitness coach Wicks saw Samuel's dancing, he tweeted: "What an inspiring young man. Sending lots of love to you. "Such an inspiring mentality. A true winner." Thousands of people have since sent messages of support to the family.