The Impact of Sitting All Day – Part 1
For most people know they sit all day as part of their job. Recently there has been a spate of article in the press about the impact of sitting all day, so I wanted to take some time to look at the impact of sitting all day.
Sit up Straight
I want to start this series of articles on a positive note, as most of my clients have to sit to work, the negative impact of sitting is minimised if you sit correctly. As your Mum always said, “Sit up straight”, i.e.
- Not leaning forward
- Shoulders relaxed
- Arms close to sides
- Elbows bent 90°
- Lower back should be supported
- Feet flat on floor
So what happens if you don’t sit up straight?
As you would expect from a masseur I am going to start by looking at the impact on your muscles.
Strained Neck & Sore Shoulders
If most of your sitting occurs at a desk at work, craning your neck forward toward a keyboard or tilting your head to cradle a phone while typing can strain the cervical vertebrae and lead to permanent imbalances. The neck doesn’t slouch alone. Slumping forward overextends the shoulder and back muscles as well, particularly the trapezius, which connects the neck and shoulders. Here at Vitality Therapy we offer Seated Acupressure Massage to directly address these issues.
Bad back
When we move around, soft discs between vertebrae expand and contract like sponges, soaking up fresh blood and nutrients. But when we sit for a long time, discs are squashed unevenly. Collagen hardens around supporting tendons and ligaments. So people who sit more are at greater risk of slipped disks or herniated disks.
I recommend the Yoga position cat-cow for increasing your spinal flexibility. (Click here for guidelines on how to do cat-cow.)
When you sit for a long time, a muscle called the psoas travels through the abdominal cavity and, when it tightens, pulls the upper lumbar spine forward. Upper-body weight rests entirely on the ischial tuberosity (sitting bones) instead of being distributed along the arch of the spine. A sports massage or a deep tissue massage can release a tight psoas muscle.
Mushy abs
When you stand, move or even sit up straight, abdominal muscles keep you upright. But when you slump in a chair, they go unused. Tight back muscles and wimpy abs form a posture-wrecking alliance that can exaggerate the spine’s natural arch, a condition called hyperlordosis, or swayback. So sitting up straight is the first step to good abs!
Tight hips
Flexible hips help keep you balanced, but chronic sitters so rarely extend the hip flexor muscles in front that they become short and tight, limiting range of motion and stride length. Studies have found that decreased hip mobility is a main reason elderly people tend to fall. So when you are in the gym remember tohttp://vitalitytherapy.co.uk/wp-admin/post-new.php stretch your hip flexors.
Limp glutes
Sitting requires your glutes to do absolutely nothing, and they get used to it. Soft glutes hurt your stability, your ability to push off and your ability to maintain a powerful stride when walking. They can impact your performance when you run, as all powerful glutes are the key to increasing your speed and powering you up hills.
Related Posts
Are low levels of Vitamin D associated with an increase risk of Diabetes?
Vitamin D is a fat-soluble, hormone-like vitamin, which means body fat acts as a "sink" by collecting it. If you're overweight or obese, you're therefore likely going to need more vitamin D than a slimmer person -- and the same holds true for people with higher body weights due to muscle mass i.e. amateur and professional athletes. It is common knowledge that obesity and physical inactivity can lead to type 2 diabetes. But what about your impact does your levels of Vitamin D have?. The Endocrine Society, published details of a study that looked at the vitamin D levels of 118 people with a wide range of weights (from slim to morbidly obese) while taking into account whether they had diabetes. According to the researchers people who have low levels of vitamin D are more likely to have diabetes, regardless of how much they weighed. The researches concluded that vitamin D is associated more closely with glucose metabolism (and hence your chance of getting diabetes) than obesity! One Indian study found that vitamin D and calcium supplementation, in combination with exercise, can prevent pre-diabetes from progressing into type 2 diabetes. The study found that for every unit increase in vitamin D levels, the risk of progression to diabetes in people with pre-diabetes went down by 8 percent. In 2013 Taleai, Mohamdi and Adgi found that type 2 diabetics given 50,000 IUs of oral vitamin D3 per week for eight weeks experienced "a meaningful reduction" in fasting plasma glucose and insulin. Other research showing this link includes but is not limited to the following:
- One study involving nearly 5,680 individuals with impaired glucose tolerance showed that vitamin D supplementation increased insulin sensitivity by 54 percent (see https://www.ncbi.nlm.nih.gov/pubmed/9516221?dopt=Abstract)
- The mechanisms by which vitamin D reduces insulin resistance include its effect on calcium and phosphorus metabolism and by up regulating the insulin receptor gene (see >> http://onlinelibrary.wiley.com/doi/10.1002/cbf.951/abstract)
What happens to your muscles when you sit?
Chair sitting is unique in that Gluteus maximi are totally relaxed at the same time as having an upright torso, and they are therefore not able to contribute to lumbar extension and back stabilization as they usually do. Without the help of the Gluteal muscles, the Erector Spinae muscles above become tired and painful in a very short time, and give up fighting to maintain the correct "hollow" in the lumbar spine.
The diagram on the left indicates what happens to three key muscles when you spend long periods of time sitting.
The Hamstrings (H) are shortened by sitting. Also, during sitting, the Gluteus Maximus (GM) is relaxed and unable to tension the lumbosacral fascia. This means the Errector Spinae (ES) muscle group must therefore perform the entire lumber extension workload.
This article discusses the link between lower back pain and the following muscle problems:-
- Shortening of the hamstring muscle.
- Overworking of the Erector Spinae muscle group and the development of trigger points.
- Overworking of the Iliopsoas muscle group and the development of trigger points.
- Diffuse achy - type pain radiating out from the groin area to the lower back, and possibly around to the side of the hip and the butt area. If the trigger points in the groin are not pressed, the pain is not sharp or stabbing.
- Relief of pain is often experienced by sitting down.
- Worse upon lengthening the iliopsoas, i.e. when one stands up, or straightens the hip joint.
- Worse for doing situps.
- Worsened by externally rotating the hip (i.e. making the knee cap look outward) when the hip joint is fully extended.
- In patients with sciatic nerve pain, lying flat on one's back with the legs out straight causes the trigger point tightened iliopsoas to compress the lumbar vertebrae together, with the result that the nerve roots of the sciatic nerve are compressed too.
- When lying flat on one's back, doing a straight leg raise reveals weakness on the affected side.
- In patients with sciatic nerve pain due to nerve root compression, lying flat on one's back with legs out straight stretches that trigger point tightened iliopsoas. The result is that the iliopsoas compresses the lumbar vertebrae together, and the the nerve roots of the sciatic nerve are compressed at the same time.
Trends in Healthcare
Today I attended the Employee Benefits Connect event to find out about the latest trends in employee benefits. Quite a few speakers identified the growth of onsite well-being services like the Vitality Breaks services I provide, as the number one healthcare issue in companies right now and for the next few years. The key conditions that are driving the growth of well-being services are:
- Diabetes
- Heart Disease
- High Blood Pressure
- Back Pain
