Literature Review
Delayed-onset Muscle Soreness (DOMS) or what is commonly referred to as postexercise muscle soreness, is the sensation of muscular discomfort and pain (Lieber & Friden, 2002) that is caused by vigorous and unaccustomed resistance training or any form of muscular exertion (Kisner & Colby, 2012).Other symptoms that are commonly seen are loss of strength and range of motion (ROM) (Valle et.at. 2013). These DOMS symptoms usually start to be felt around 12-24 hours after exercise and usually last a couple of days but have been known to last 10-14 days. There has been a lot of research done on various aspects of DOMS, from what causes it, how to prevent it, and how to treat it once it has occurred in an athlete. But unfortunately, very little is known about DOMS. Throughout this section, many aspects of DOMS will be reviewed. First, there will be an introduction of the etiology of DOMS and the many theories about why and how it occurs. Second, meauses that are taken in order to prevent DOMS will be discussed. Lastly, there have been many different approaches to treating an athlete with DOMS, with most of the actual benefits of these treatments being inconclusice at best, if not in some cases detrimental.
Possible Causes of DOMS
Muscle Spasm Theory
One theory that was thought to be the cause of DOMS in the 1960’s was the muscle spasm theory. This theory suggested that a feedback cycle of pain caused by ischemia and a buildup of metabolic waste products during exercise led to muscle spasm (Kisner & Colby, 2012). It was hypothesized that the buildup of these metabolic wastes caused the DOMS symptoms and an ongoing reflex pain-spasm cycle that could last for many days after (Vries, 1966). This theory has since been dispr...
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...d to myofibril damage in human muscles with DOMS: an ultrastructural and immunoelectron microscopic study. Histochemistry and Cell Biology, 121(3), 219-227.
Ayles, S., Graven-Nielsen, T., & Gibson, W. (2011). Vibration-Induced Afferent Activity Augments Delayed Onset Muscle Allodynia. The Journal of Pain, 12(8), 884-891.
Vries, H. A. (1966). Quantitative Electromyographic Investigation Of The Spasm Theory Of Muscle Pain. American Journal of Physical Medicine & Rehabilitation, 45(3).
Abraham, W. M. (1977). Factors in delayed muscle soreness. Medicine & Science in Sports & Exercise, 9(1), 11???20.
Jakeman, J. R., Byrne, C., & Eston, R. G. (2010). Efficacy of Lower Limb Compression and Combined Treatment of Manual Massage and Lower Limb Compression on Symptoms of Exercise-Induced Muscle Damage in Women. Journal of Strength and Conditioning Research, 24(11), 3157-3165.
The data collected during this experiment has shown that a relationship likely exists between the rate of muscle fatigue and the time spent performing vigorous exercise prior to the set of repetitive movements. This is likely due to a build-up of lactic acid and lactate as a result of anaerobic respiration occurring to provide energy for the muscle cell’s movement. As the pH of the cell would have been lowered, the enzymes necessary in the reactions would likely not be working in their optimum pH range, slowing the respiration reactions and providing an explanation to why the average number of repetitions decreased as the prior amount of exercise increased.
Witvrouw, E., Mahieu, N., Roosen, P., & McNair, P. (2007). The role of stretching in tendon injuries. British journal of Sports Medicine , 224-226.
Kinesiology: The Mechanics & Pathomechanics of Human Movement (Second ed.). Glenside, Pennsylvania: Lippincott Williams & Wilkins. Qiao T, Liu C and Ran F. (2005) The impact of gastrocnemius muscle cell changes in chronic venous insufficiency. Eur J Vasc Endovase Surg 30; 430-436.
Pain was significantly increased with flexion and extension. Sensation is decreased in the bilateral upper extremities. Strength is decreased in the bilateral upper extremities.
This report will explore the structure and function of skeletal muscle within the human body. There are three muscle classifications: smooth (looks smooth), cardiac (looks striated) and skeletal (looks striated). Smooth muscle is found within blood vessels, the gut and the intestines; it assists the movement of substances by contracting and relaxing, this is an involuntary effort. The heart is composed of cardiac muscle, which contracts rhythmically nonstop for the entire duration of a person’s life and again is an involuntary movement of the body. The main focus of this report is on skeletal muscle and the movement produced which is inflicted by conscious thought unless there is a potentially harmful stimulus and then reaction is due to reflex, as the body naturally wants to protect itself. Skeletal muscle is found attached to bones and when they contract and relax they produce movement, there is a specific process that the muscle fibers go through to allow this to occur.
Dystrophin is part of a complex structure involving several other protein components. The "dystrophin-glycoprotein complex" helps to anchor the structural skeleton (cytoskeleton) within the muscle cells, through the outer membrane (sarcolemma) of each cell, to the tissue framework (extracellular matrix) that surrounds each cell (Straube and Campbell, 1997). Due to defects in this assembly, contraction of the muscle leads to disruption of the outer membrane of the muscle cells and eventual weakening and wasting of the muscle
The prognosis for individuals depends on the underlying cause of the trauma. Early recognition and knowing the symptoms are important in identifying rhabdomyolysis versus DOMS, whereas a misdiagnosis can be fatal. Whether a person has been working out for years or is a beginner, knowing the limits of their body is critical when preforming new exercise programs or workouts. Many of the cases of rhabdomyolysis may be associated with various causes of muscle and kidney damage, leading to electrolyte imbalance and hospitalization. The importance of a getting early treatment may prevent damage of internal organs, including acute kidney failure. Individuals participating is rigorous exercise programs should know their limits, have a healthy diet and overall
James’s biopsy of his right gastrocnemius muscle would have shown a degeneration of the muscle or skeletal fibers due to the lack of dystrophyn. Another microscopic change that would be noticed is the accumulation of white blood cells. White blood cells have a very specific function which is to clear the damaged muscle fibers from the debris. Clearly, due to some of the muscle fibers being damaged other healthy fibers that have not been damaged appear denser. By having damaged muscle fibers, all the work rest upon the healthy fibers making them contract to the fullest due to the fact that the myosin and acting would have to overlap even more to make the muscle work.
6. Mike, Jonathan N., M.S., and Len Kravitz, Ph.D. (2009). "Recovery in Training: The Essential
Kinesiology is a complimentary therapy used to identify and correct internal issues to relieve stress, allergies, and pain. Being described as a complimentary therapy, kinesiology is not meant to be a cure-all for the patient, but a secondary method of increasing positive results of the original therapy; this method however can be used as a primary or secondary form of therapy depending on the results for the patient and satisfaction with said results. During treatment the doctor tests 14 different areas of muscles balance, these major muscles and how they react are believed to uncover problems that need correction which cannot be found with any other testing (Rude Health).
The sarcomere is found in structures called myofibrils which make up skeletal muscle fibres. Within the sarcomere there are various different proteins. One of the most significant, myosin is found in the thick filaments of the sarcomere. Although both cells contain myosin, it is important to highlight that smooth muscle cells contain a much lower percentage of myosin compared to skeletal muscle cells. Despite this, myosin filaments in smooth muscle cells bind to actin filaments in a manner similar to that in skeletal muscle cells; although there are some differences. For instance, myosin filaments in smooth muscle cells are saturated with myosin heads so that myosin can glide over bound actin filaments over longer distances, enabling smooth muscle cells to stretch further, whilst in skeleta...
The concept that pain means injury or damage is deeply embedded in the American consciousness. “I have never seen a patient with pain in the neck, shoulders, back or buttocks who didn’t believe that the pain was due to an injury, a “hurt” brought on by some physical activity.” Says Dr. John E. Sarno, M.D. “The pain started after I lifted my little girl” or “Ten years ago I was involved in a hit- from- behind auto accident and I have had recurrent back pain ever since.” Of course, if the pain starts while one is engaged in a physical activity it’s difficult not to attribute the pain to the activity. “But this pervasive concept of the vulnerability of the back, of ease of injury, is nothing less than a medical catastrophe for the American public, which now has an army of semidisabled men and women whose lives are significantly restricted by the fear of doing further damage or bringing on the dreaded pain again” (qtd. in “Healing Back Pain”). With good intentions, this idea has been encouraged by the medical profession and other healers for years. It has been assumed that neck, shoulder, back and buttock pain is due to injury or disease of the spine and associated structures and ligaments surrounding these structures- without scientific validation of these diagnostic concepts. “On the other hand,” States Dr. Sarno, “I have had gratifying success in the treatment of these disorders for seventeen years based on a very different diagnosis. It has been my observation that the majority of these pain syndromes are the result of a condition in the muscles, nerves, tendons and ligaments brought on by tension.”
(e.g., Rhudy, Williams, McCabe, Nguyen, & Rambo, 2005; Terry et al., 2011). For the Ischema Pain Test the individuals were to exercise their hand with 50% of their maximum grip for a total time of 2 minutes. Next, blood was drained from the arm by elevating it above their shoulder for 15 seconds. Then, a blood pressure cuff was placed around the forearm and inflated in order to obstruct blood flow to their hand. The Ischema test is measured in the amount of time for the individual to achieve a 50 or greater on the NRS. To test the NFR the researchers used 3 diodes placed on the participant’s sural nerve to provide electrical impulses directly to the sural nerve. These impulses went in a ladder pattern that ascended and descended in order to give the individual the stimulation of pain. The stimulus was given at 8-12 second intervals and the participants were asked to translate their pain to the NRS for every section of the test. Each time the power of the electrical shock is increased by 1 mA (milliAmp) and an EMG on the bicep was recorded the whole time. For the Electrical Pain Assessment a single shock was induced to each participant and every time it was increased by 2 mA until they reached 100 on the NRS. The researchers did not exceed 50 mA during this test as to not cause
In order to fully understand the impact and effect of overtraining, defining and establishing the difference of what overtraining is from other conditions, such as overreaching, is necessary. Overtraining is defined as the accumulation of both training and non-training stresses producing a long-term effect on the athlete’s performance capacity, with or without physical and psychological overtraining signs and symptoms in which recovery of the performance capacity will take weeks to months (Halson, 2004 p. 969). Overreaching, however, is defined by the accumulation of training and non-training stresses with a short-term effect on the a...
in soft tissue mobilization pressure.” Medicine and Science in Sports and Exercise. April 1999: 531-5.