Engineers create unpowered exoskeleton "boots" that use a spring and a ratchet to make human walking 7% more efficient.
Britain's Kell Brook wants to defend his IBF world welterweight title by the end of May in the first of two summer bouts.
Jockey Lewis Ferguson survives a spectacular fall from favourite Merrion Square at Wincanton.
Head teachers say they cannot be expected to "conduct surveillance" on young people, after warnings that more might travel to Syria during the school holidays.
Both main parties seem reluctant to rock the boat, writes Laura Kuenssberg - but will the cautious approach achieve a breakthrough?
Nine British nationals have been seized by Turkish authorities after trying to illegally enter Syria, armed forces in the country say.
South Korea is to pay about $380,000 (£256.000; €353,000) in compensation for each of the nearly 250 students killed in the Sewol ferry disaster.
On the third day of the election campaign trail Ed Miliband has criticised zero-hours contracts.
BBC Africa explains why Muhammadu Buhari's election victory is so momentous for Nigeria and the continent.
Young players could be "exploited" because of the deregulation of football agents - according to agent David Seligman.
The Northern Ireland Supporters Club chairman calls for a meeting with the Irish Football Association over possible subsidence at Windsor Park.
The new owners of one of south Wales' most famous fairgrounds insist they will open on Friday despite setbacks.
Dozens of Yemenis cross the Gulf of Aden to get to Djibouti and Somalia to escape fighting and Saudi air strikes, the UN refugee agency says.
The governor of Arkansas has called for changes to a "religious freedom" bill after a similar law in Indiana has drawn a firestorm of criticism.
China says it will create a "blacklist" of banned Japanese anime cartoons, and plans to punish firms that hosted violent and sexual clips online.
Images from the campaign trail: 1 April
Police Scotland to investigate former security members over so-called shoot-to-kill operation in County Armagh in 1982.
Raheem Sterling tells BBC Sport he is not a "money-grabbing 20-year-old" after turning down a Liverpool deal worth £100,000 a week.
A potential star of the future, Raheem Sterling is far from irreplaceable, writes chief football writer Phil McNulty.
Eyewitness Martin Dyan describes how he and his colleagues were evacuated from their office following a fire under a pavement in Holborn, central London.