Step in time: Heighten own awareness
When walking focus on placing your feet lightly on the ground. This will obviously reduce the impact on the body, particularly the joints, of each step. This will also therefore reduce the amount of energy expended.
Energy is stored in the body in a molecule called Adenosine Triphosphate(ATP) -mentioned in September 2016 blog. It is finite. Once used it has to be replenished. That comes from what we eat and and we breathe. When the latter is compromised, regardless of the reason, one of known side effects are muscle cramps.
When posture is impaired, the lungs are unable to function at the optimum efficiency. This, over time,has implications for how well the blood is re-oxygenated, which in turn leads to detrimental changes that affects to how the whole body performs.
So step lightly in time and heighten your awareness of good posture