The Queen was most amused after hearing about an RAF gunner’s unusual lockdown exercise regime of pushing a car up and down the streets.The monarch remarked “Oh”, looked surprised and gave a chuckle when Lance Corporal Shanwayne Stephens – a member of the Jamaican bobsleigh team – told her how he had been using the method to keep fit.“Well I suppose that’s one way to train,” the Queen added, laughing.Her conversation with L/Cpl Stephens came as the Queen carried out her second official virtual royal engagement, holding a video call from Windsor Castle with members of the Armed Forces based across the globe.