What is posture?
From the Worksafe Australia & Health Direct websites (see links below) there are some nice explanations about posture. A brief summary follows:
Posture is the position in which we hold our bodies while standing, sitting, or lying down. Good posture is the correct alignment of body parts supported by the right amount of muscle tension against gravity. Without posture and the muscles that control it, we would simply fall to the ground.
Normally, we do not consciously maintain normal posture. Instead, certain muscles do it for us, and we don’t even have to think about it. Several muscle groups, including the hamstrings and large back muscles, are critically important in maintaining good posture. While the ligaments help to hold the skeleton together, these postural muscles, when functioning properly, prevent the forces of gravity from pushing us over forward. Postural muscles also maintain our posture and balance during movement.
It is easy to develop poor posture habits. Without ergonomic seating and desk set up – the tendency is to hold the head forward & downwards whilst we are working.
The same can be said for using laptops at home as well as using texting.
Why is good posture important?
Good posture helps us stand, walk, sit, and lie in positions that place the least strain on supporting muscles and ligaments during movement and weight-bearing activities. Correct posture:
- Helps us keep bones and joints in correct alignment so that our muscles are used correctly, decreasing the abnormal wearing of joint surfaces that could result in degenerative arthritis and joint pain.
- Reduces the stress on the ligaments holding the spinal joints together, minimizing the likelihood of injury.
- Allows muscles to work more efficiently, allowing the body to use less energy and, therefore, preventing muscle fatigue.
- Helps prevent muscle strain, overuse disorders, and even back and muscular pain.
Consequences of poor posture
Poor posture can lead to excessive strain on our postural muscles and may even cause them to relax, when held in certain positions for long periods of time. For example, you can typically see this in people who bend forward at the waist for a prolonged time in the workplace. Their postural muscles are more prone to injury and back pain.
Several factors contribute to poor posture–most commonly, stress, obesity, pregnancy, weak postural muscles, abnormally tight muscles, and high-heeled shoes. In addition, decreased flexibility, a poor work environment, incorrect working posture, and unhealthy sitting and standing habits can also contribute to poor body positioning.
The good news is that minor posture deviations are mainly due to muscular imbalances which means they can be corrected by exercising. Weak muscles can be strengthened and tight muscles can be stretched. Where the deviation is more significant then exercise alone cannot correct it and a referral is required to an allied health professional.
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References: Worksafe Queensland (worksafe.qld.gov.au), Healthdirect.gov.au, American Chiropractic Association (acatoday.org),