If you are looking for something more strenuous than a stroll up the airplane aisle or quick toe wiggle to keep the circulation going on long-haul flights, then look no further than the new Pocket Gym Lite, which at just 5 kg will slip into your travel bag and only take a fraction of your carry-on allowance.This versatile little exercise bar can be put to good use to encourage blood circulation in the legs and discourage the formation of potentially deadly blood clots.

Mind you don't elbow your neighbour when you're doing the pectoral press. And be prepared for the stewardesses to raise their plucked eyebrows if you move into the aisle to try the rest of the 30 exercises listed with the gym. For a tougher workout,there's also a sturdier Pocket Gym original, at 11 kg, offering a choice of resistance levels.

Available by calling 0800 072 0898 (www.pocket-gym.com) the Pocket Gym Lite costs £17.95 and the original Pocket Gym costs £39.95.