By habit we tend to adopt a particular posture whilst carrying out our work and quite unknowingly we may be creating a problem.
One-sided activates such as digging, use of machinery, or hand or power tools can cause over-use injuries as a result of muscle spasm or joint strain. Repeated on a daily basis the postural habit can result in changes to tissue and joint damage.
Often we think that we should maybe get help to move something heavy but knowing that that may take time, we inevitably attempt to move the thing ourselves, which may result in an excessve strain on our body.