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.
For an Aerobic, Hilly, Energizing, or Focusing walk, your cadence should be 60-70 spm. An Upper-Body walk is best done within a slightly narrower range of 55-60 spm, while a Cardio or Race walk moves along briskly at 70-80 steps per minute. All of these walks can be found in the Chi Walking book.