The musculoskeletal (MSK) system includes
the muscles, tendons, joints, and
bones of the body. Cigarettes contain
many harmful chemicals, including nicotine and carbon monoxide which negatively
affect the physical health and integrity of the MSK system. Included below is a summary of those affects:
1. Smoking decreases bone
mineral density (BMD) and increases the risk of osteoporosis and future
fractures. Studies
have shown that nicotine reduces the blood supply to bones, slows the
production of bone forming cells, and decreases the absorption of calcium. Post-menopausal women who smoke have greater
spinal osteoporosis than non-smoking counterparts. Among men, a consistently lower BMD at all
bony sites is observed regardless of when in their life they smoked. In addition, a relationship between cigarette
smoking and low BMD in adolescence and early adulthood has been identified.
2. Smoking delays healing times
for bony fractures and soft tissue injuries such as rotator cuff tears. Nicotine has been shown to decrease the
production of fibroblasts (the main cells responsible for tissue repair). In addition, the carbon monoxide found in
tobacco smoke reduces oxygen levels in the body which is critical for all
tissue healing.
3. Smoking contributes to an
increase in spinal problems. The reduced blood circulation found in
smokers deprives spinal discs of vital nutrients which can lead to premature
degeneration. Smoking may also provoke
disc herniation through coughing. Studies demonstrate a definite link
between smoking and low back pain that increases with the duration and
frequency of the smoking. Exposure to
secondhand smoke during childhood may also increase the risk of developing neck
and back problems later in life.
4. Smoking increases pain
levels. Smokers complain more
often of MSK pain than non-smokers. Studies indicate that smoking makes individuals more
susceptible to sensing pain at lower thresholds. In addition, smoking causes general damage to
the MSK system through direct chemical irritation, chronic inflammation, and
restricting blood and nutrient flow.
5. Smoking causes stress and de-conditioning
in the body. For optimal functioning, your muscles and joints need a steady supply of oxygen-rich blood. Smoking not only stiffens your arteries, it
also decreases the rate at which oxygen and carbon dioxide are exchanged in the
blood. Other side effects of smoking
include fatigue, lung disorders, impaired healing, and chronic pain. Impaired healing means that injuries affect
you for longer than usual, and healing from surgeries or infections can be
problematic. These side effects can lead
to inactivity, which causes deconditioning.
Scientific evidence has established links
between cigarette smoking and its detrimental impact on the MSK system. However, it is never too late to try and quit
smoking. Some of the negative health
aspects of smoking start to reverse after a smoker quits. Those looking for help in trying to quit
should speak to a medical professional. Valuable
resources can also be found on the Health Canada and Canadian Lung Association
websites. For additional information on health and wellness, visit www.nhwc.ca.
This article
is a basic summary for educational purposes only. It is not intended, and should not be
considered, as a replacement for consultation, diagnosis or treatment by a duly
licensed health practitioner.