On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earthâs mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects. At Earthâs surface the acceleration of gravity is about 9.8 metres (32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 metres per second. At the surface of the Moon the acceleration of a freely falling body is about 1.6 metres per second per second.
Physicians and physiologists have warmed to the idea of water walking as therapy and good exercise for people with joint pain and damage for its many benefits, which include: 1  Waterâs buoyancy reduces the impact on joints.  Working out in water can help improve cardiovascular fitness, balance and range of motion.
Health experts recommend that we should walk 10,000 steps a day (about five miles) to stay healthy, yet most Britons walk only 4,500 steps. You would probably need to tot up at least 16,000 steps a day to lose weight. Knight suggests the following workout plans, depending on your level of fitness. With each, you should aim to progress by increasing the duration of your walk by five minutes every two weeks, and the intensity by walking faster.