How Stretching Can Hurt Your Muscles

Written by Dr. Steve Chaney on . Posted in Issues, Muscle Therapy and Health

Preventing & Healing Repetitive Strain Injuries – Part 3

 Author: Julie Donnelly, LMT

 

These past two weeks we took a look at how muscles move the body, and why muscles cause pain. Then we looked at why strengthening isn’t always the best thing to do, in fact how it could even cause more pain. And finally today we’ll discuss why stretching can actually cause muscles to tear.  I call this the Stretching Misconception.

Stretching Shouldn’t Hurt!

Have you ever felt so tight when you tried to move a joint that you decided to stretch?  The odds are that you answered “yes” to that question.  However, many people complain that they feel worse after stretching than they did before stretching.

Before getting into the specifics of the stretching misconception there are two words that need to be clarified. Many people confuse the word “spasm” with “cramp”. A cramp (also called a “Charlie horse”) normally involves all of the fibers of a muscle, and is when a muscle suddenly contracts totally. A spasm is like tying a knot in the center of the muscle and while it may only involve a few fibers; there can be multiple spasms throughout the muscle.

Each spasm feels like a bump when you slide your fingers deeply down the length of the muscle. These spasms normally form over an extended period of time, often from repetitive strain on the muscle fibers. Spasms are at the heart of the stretching misconception, so it is important that you think of a spasm as a knot in the muscle fibers in order to understand why it can hurt to stretch.

As I mentioned in Part I of this series, a muscle begins on a stationary bone, crosses over a joint, and then inserts into a moveable bone. When the muscle pulls on the moveable bone, the joint moves, however, if the muscle has a “knot” in it you can actually cause micro-tears to the fibers as you stretch.

How Stretching Can Hurt Your Muscles

Stretching Analogy 1Think of this analogy: visualize a strong tree with a rope tied to it. The rope is the perfect length to attach to a flexible tree without bending the second tree. You can imagine if you pulled on the rope the flexible tree would bend over, and if you let go of the rope, the flexible tree would stand up straight again.  This is a simple explanation of how a muscle pulls on a bone and causes the joint to move.

However, if you tied a knot in the rope, the tree would bend. If you tied a second knot, the tree would bend even further. If Stretching Analogy 2you then tried to stretch the rope so the flexible tree was standing straight, you would cause the knot to get tighter and the remaining rope would have to overstretch on both sides of the knot in order for the flexible tree to stand up straight.

This is exactly what is happening when you have a spasm, or multiple spasms, in your muscle. As you stretch you are causing the knot within the muscle to get tighter, and you are also causing the fibers on either side of the spasm to overstretch. This overstretching may cause the fibers to actually tear either along the length of the muscle, or where the fibers attach to the bone at either end of the muscle. This can be avoided by simply massaging the muscle to release the spasm before you stretch.

It’s now easy to understand why the repetitive movements that you do on a regular basis will cause the muscle to ultimately shorten into knots that we call spasms or trigger points.  As I mentioned, when you try to stretch a spasm you can be causing yourself potential problems, and may even tear the muscle fibers.

Fortunately there is a solution. First you need to release the spasms that are causing the muscle to tie up into a knot, and then you can safely stretch. TriggerPointYoga was designed and developed to first eliminate the spasms in the muscle you will be stretching, and then continues to give four separate session of traditional yoga poses – two for the upper body and two for the lower body.  You will gain flexibility and range-of-motion without injuring your muscle fibers.

Julie Donnelly is an internationally respected muscular therapist specializing in the treatment of chronic pain and sports injuries.  She has co-authored several self-treatment books, including The 15 Minute Back Pain Solution, Treat Yourself to Pain-Free Living  and Carpal Tunnel Syndrome-What You Don’t Know CAN Hurt You.  Julie is also the co-developer of TriggerPoint Yoga. She teaches Julstro self-treatment workshops nationwide and is a frequent presenter at Conventions and Seminars.  Julie may be contacted through her websites: http://www.julstro.com  and http://www.TriggerPointYoga.com.

© Julie Donnelly 2013

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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High Protein Diets and Weight Loss

Posted October 16, 2018 by Dr. Steve Chaney

Do High Protein Diets Reduce Fat And Preserve Muscle?

Author: Dr. Stephen Chaney

Healthy Diet food group, proteins, include meat (chicken or turkAre high protein diets your secret to healthy weight loss? There are lots of diets out there – high fat, low fat, Paleolithic, blood type, exotic juices, magic pills and potions. But recently, high protein diets are getting a lot of press. The word is that they preserve muscle mass and preferentially decrease fat mass.

If high protein diets actually did that, it would be huge because:

  • It’s the fat – not the pounds – that causes most of the health problems.
  • Muscle burns more calories than fat, so preserving muscle mass helps keep your metabolic rate high without dangerous herbs or stimulants – and keeping your metabolic rate high helps prevent both the plateau and yo-yo (weight regain) characteristic of so many diets.
  • When you lose fat and retain muscle you are reshaping your body – and that’s why most people are dieting to begin with.

So let’s look more carefully at the recent study that has been generating all the headlines (Pasiakos et al, The FASEB Journal, 27: 3837-3847, 2013).

The Study Design:

This was a randomized control study with 39 young (21), healthy and fit men and women who were only borderline overweight (BMI = 25). These volunteers were put on a 21 day weight loss program in which calories were reduced by 30% and exercise was increased by 10%. They were divided into 3 groups:

  • One group was assigned a diet containing the RDA for protein (about 14% of calories in this study design).
  • The second group’s diet contained 2X the RDA for protein (28% of calories)
  • The third group’s diet contained 3X the RDA for protein (42% of calories)

In the RDA protein group carbohydrate was 56% of calories, and fat was 30% of calories. In the other two groups the carbohydrate and fat content of the diets was decreased proportionally.

Feet_On_ScaleWhat Did The Study Show?

  • Weight loss (7 pounds in 21 days) was the same on all 3 diets.
  • The high protein (28% and 42%) diets caused almost 2X more fat loss (5 pounds versus 2.8 pounds) than the diet supplying the RDA amount of protein.
  • The high protein (28% and 42%) diets caused 2X less muscle loss (2.1 pounds versus 4.2 pounds) than the diet supplying the RDA amount of protein.
  • In case you didn’t notice, there was no difference in overall results between the 28% (2X the RDA) and 42% (3X the RDA) diets.

Pros And Cons Of The Study:

  • The con is fairly obvious. The participants in this study were all young, healthy and were not seriously overweight. If this were the only study of this type one might seriously question whether the results were applicable to middle aged, overweight coach potatoes. However, there have been several other studies with older, more overweight volunteers that have come to the same conclusion – namely that high protein diets preserve muscle mass and enhance fat loss.
  • The value of this study is that it defines for the first time the upper limit for how much protein is required to preserve muscle mass in a weight loss regimen. 28% of calories is sufficient, and there appear to be no benefit from increasing protein further. I would add the caveat that there are studies suggesting that protein requirements for preserving muscle mass may be greater in adults 50 and older.

The Bottom Line:

1)    Forget the high fat diets, low fat diets, pills and potions. High protein diets (~2X the RDA or 28% of calories) do appear to be the safest, most effective way to preserve muscle mass and enhance fat loss in a weight loss regimen.

2)     That’s not a lot of protein, by the way. The average American consumes almost 2X the RDA for protein on a daily basis. However, it is significantly more protein than the average American consumes when they are trying to lose weight. Salads and carrot sticks are great diet foods, but they don’t contain much protein.

3)     Higher protein intake does not appear to offer any additional benefit – at least in young adults.

4)     Not all high protein diets are created equal. What some people call high protein diets are laden with saturated fats or devoid of carbohydrate. The diet in this study, which is what I recommend, had 43% healthy carbohydrates and 30% healthy fats.

5)    These diets were designed to give 7 pounds of weight loss in 21 days – which is what the experts recommend. There are diets out there promising faster weight loss but they severely restrict calories and/or rely heavily on stimulants, they do not preserve muscle mass, and they often are not safe. In addition they are usually temporary.  I do not recommend them.

6)    This level of protein intake is safe for almost everyone. The major exception would be people with kidney disease, who should always check with their doctor before increasing protein intake. The only other caveat is that protein metabolism creates a lot of nitrogenous waste, so you should drink plenty of water to flush that waste out of your system. But, water is always a good idea.

7)     The high protein diets minimized, but did not completely prevent, muscle loss. Other studies suggest that adding the amino acid leucine to a high protein diet can give 100% retention of muscle mass in a weight loss regimen – but that’s another story for another day.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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