.
Mechanisms Of Running Injuries
1. When a given tissue lacks the strength to endure your training loads...you "will" get injured.
2. When the rate of application of your training loads exceeds the body's rate of adaptation to the training...you "will" get injured
3. muscle//tendon lacks the -length-- necessary for movement through sport required range of motion.
From a physical standpoint, injury consists of micro-tears in tendon [or muscle] tissue. Tendonitis is a general term that covers this type of injury. Tendon is comprised of a protein called collagen. Collagen is produced by cells called fibroblasts. When the rate of application of the training loads exceeds the rate of adaptation of the body tissues, a situation exists where collagen breakdown substantially exceeds collagen production by fibroblasts.
Stretching tissues such as tendons and muscles that already have tearing is ill-advised as this simply recreates the injury every time you stretch.
Just say no to practitioners of traditional Sports Medicine...........
"......primary research evidence only accounted for 24% of management......."
"Practitioners were unaware of literature supporting over 50% of the treatment modalities they used."
"This study highlights a lack of evidence base, a lack of knowledge of the research evidence..that is available for these conditions."
"Practitioners practiced evidence based medicine in under 50% of cases."
I.R. Murray, et al
How Evidence Based Is The Management Of Two Common Sports Injuries In A Sports Injury Clinic?
British Journal Of Sports Medicine..Volume 39 #12...December 2005..page 912
Fibroblast Cells & Healing -----
If the strength of the tissue of a tendon is insufficient to match the strength needed to endure your training.....you "will" get injured. Full tissue repair cannot occur in a timely manner with rest alone. The most effective stimulus that causes fibroblast cells to lay down new collagen to repair the tendon is high intensity strength training.
The more force the attached muscle is trained to produce, the more force the tendon will be trained to endure.
Promote Tissue Healing -------
To promote tissue healing, one will need to engage in activities that promote the migration, proliferation, and activity of cells [ie. Fibroblast cells] that produce new tissue, repairing damaged structures. Initially, this can be done via the traditional means [ultra-sound, electrical stimulation, any one of a number of manual tissue manipulation techniques, etc]. After a few days however, it may be wise to escalate the potency of the stimulus for the migration, proliferation, and activity of cells [ie. Fibroblast cells]..by engaging in strength training exercises.
"The repair and maintenance of connective tissues is performed predominately by.....cell known as a fibroblast. The activity of this cell is regulated, in part, by changes in the mechanical environment in which it resides."
M. Eastwood, D.A., McGrouther, R.A. Brown.....1998
Fibroblast Responses To Mechanical Forces.
Journal of Engineering in Medicine.....Volume 212 #2.....1998.....page 85 - 92
--------
".......the proliferation and activation of tendon fibroblasts is dependent upon the mechanical force applied...."
"Improved fibroblast response may lead to improved tensile strength of the healing tissue and identifying the optimal pressure to facilitate this response may lead to fewer treatment sessions."
G.M.Gehlsen, L.R.Ganion, R.Helfst.....1999
Fibroblast Responses To Variation In Soft Tissue Mobilization Pressure
Medicine & Science In Sports & Exercise.....Volume 31 #4 1999
---------
"This study shows that application of mechanical stress to tendon fibroblasts resulted in an alteration of cellular proliferation depending on the stress time."
J. Zeichen, M.van Griensven, U. Bosch.....2000
The Proliferative Response Of Isolated Human Tendon Fibroblasts To Cyclic Biaxial Mechanical Strain
American Journal Of Sports Medicine.Volume 28 #6.....November/December 2000..page 888 - 892
Heal Faster ---------
The primary reasons injuries often take people several weeks to several months to deal with are;
--- Provinding a low or no stimulus for healing. Doing so-called "strengthening exercises" with little or no weight//resistance [ie. use of rubber tubing, etc]. The amount of weight/resistance determines the amount of stimulus for cells that are responsible for healing.
--- Doing a bunch of reps and sets of "strengthening exercises" with no progressive increase in weight//resistance as strength of the tissues increase.
--- The frequency of application of a strengthening stimulus is a major determining factor on the rate of healing. If you're seeing a physical therapist, chances are you'll be going only once or twice a week. If this is the only time that strengthening of the tissue is being induced, recovery will take quite a few weeks.
--- Multiple uses of ice, anti-inflammatories, and anything else that decreases blood flow to a healing tissue, and/or decreases immune cell function in and around a healing tissue.....will also account for a slow recovery time. Rest and stretching are usually insufficient to improve the tissue's ability to withstand training loads.
--- Recurrent attempts to return to training before the tissue has acquired the strength necessary to endure their training loads.
Nutrition & Healing -----
Protein and vitamin C comprise portions of the tissues you're looking to heal, so their intake should be increased temporarily to improve the rate of healing. since their availability in your tissues will affect the rate of tissue regeneration. You may benefit from several days of --- protein 1.5 - 2.0 grams of proteing per kg of your body weight, Vitamin C 500mg, zinc 30 - 50mg, magnesium 500mg, a few grams of the amino acids leucine and arginine, 2 teaspoons liquid colostrum, Vitamin D 6000IU to 10,000IU, Lugol's Iodine 7 - 15mg.
Usual Complications Of Running Injuries -----
If you've had an injury for a while, and haven't seen improvement inspite of things you've tried, the reason the pain persists is most likely because you haven't yet done anything that would improve the tissue's ability to withstand your training/racing loads. If the strength of the tissue in question is insufficient to match the strength needed to endure your training.....you "will" experience pain at some point, independent of what shoes you wear or how much they cost, or how biomechanically great or awful your running form is currently. Shoes can't strength train your body's tissues. Some of them are capable of reducing the motions of the foot in a manner that reduces the amount of strength your lower leg muscles must have to endure your training loads, and improvements in running form can have the same effect. But as the shoes wear out with use, their ability to provide this function wears out with them. The safest long term solution is to strength train. Rest, ice, stretching, anti-inflammatories........of these, none will improve the tissue's ability to withstand your training/racing loads.
Slow The Rate Of Application Of Training Loads -----
When the rate of application of the training loads exceeds the rate of adaptation of the body tissues, injury will eventually result in whatever tissue is your weakest link at that time. If you run every day, you're applying your training loads at a rate of approximately once every 24 hours. Reduce the rate of application of your training loads temporarily since it is clear that the current rate exceeds what the tissue can handle. You can slow the rate of application of your training loads by reducing how frequently you train. The way to do this is to provide for "OFF" days in your training (ie. every 2 - 3 days). "OFF" days are not cross-training days.......OFF days is are days that allow recovery, restoration, and adaptation to your training. If at some point in a given week, the tissue in your IT-band, shin, knee, or foot requires 48 hours without a training load placed on it, but you provide only 24 hours...injury is likely.
Reduce Training Loads -----
Reduce the magnitude of application of your training loads temporarily since it is clear that the current magnitude exceeds what the tissue can handle. You can reduce the magnitude of application of your training loads by reducing how long you train.......keep each training session to less than 20 minutes.
The Role of Stretching [Range of Motion] -----
You'll find that muscle and tendon respond to what is done, and -not-- done. For example ------- sitting at a desk at work//school for many hours per day for many years means you're in a hip flexion position for many hours per day for many years. One should expect to see tight hip flexor muscles and tendons after a period of years, and perhaps lower back problems that may accompany them......Also, sitting at a desk at work//school for many hours per day for many years means you're in a -knee- flexion position for many hours per day for many years. One should expect to see tight -knee- flexor muscles and tendons [ie. hamstring, calf] after a period of years. That gradual loss of flexibility over time is due to exposing muscles and tendons to a given position for many hours per day for many years, without exposing them to the opposite position in a sufficient manner............that's -not- about age or aging.
The duration of stretch needed to increase muscle and tendon "pliability" prior to a workout, is somewhat different than that required to increase or maintain long term "range of motion". Its best to treat stretching in your training program, in the same manner as you would strength training............in that you should have a designated day(s) for specifically going through a designed routine. Muscle and tendon fibers respond to stretching sessions in a similar manner as strength training. Rather than gaining a wider width though, they get longer by adding more sections. If a muscle//tendon lacks the -length-- to allow for limb-joint movement through it's sport required range of motion..some sort of tissue damage should be expected.
The duration of the stimulus [how long you hold the stretch] determines the potency of the stimulus applied [though, a high frequency can take the place of a long duration]. The durations should be about 3 minutes for each position. In this manner, stretching should be treated as a workout, not preparation for a workout.
Say No To Drugs -----
Following the initial 24-48 hour period of injury, application of heat stimulus (5 - 10 minutes limb water submersion 100-105 degrees F) should be used to increase blood flow and energy production for repair processes. Ingestion of NSAID's (anti-inflamatories) should be avoided since this will impair recovery, and potentially mask pain, leading one to believe it is ok to return to training.
Never...ever....under "any" circumstances...allow a doctor to inject the tissue with cortisone or any other substance that is well known to cause degradation of collagen and other tissue proteins.
Just say --no-- to drugs..........
"The use of nonsteroidal anti-inflammatory drugs for the treatment of tendon inflammation might increase the levels of leukotriene B4 within the tendon, potentially contributing to the development of tendinopathy."
"This finding is of interest because NSAID's are routinely used in clinical practice for the symptomatic treatment of tendinopathy, such as inflammation and pain."
"..the increased LTB4 level due to treatment with NSAID's could potentially exacerbate the situation by leading to neutrophilic infiltration and lymphocytic activation, paradoxically causing further inflammatory and degenerative changes in the tendon."
"..the results of this study suggest that the routine use of COX inhibitors for the symptomatic relief of inflammatory tendon conditions might inadvertently worsen the processes responsible for the development of tendinopathy."
Zhaozhu Li, et. al
Inflammatory Response Of Human Tendon Fibroblasts To Cyclic Mechanical Stretching
The American Journal Of Sports Medicine..Volume 32 #2....2004...page 435 - 439
-------
iceing = cryotherapy --- just say no to cryotherapy..........
"....the administration of nonsteroidal anti-inflammatory drugs or cryotherapy are common clinical practices to control the inflammatory process following connective tissue injury. However, there are contradictory conclusions on the potential of anti-inflammatory strategies to either prevent nonspecific damages or accelerate healing after acute tendon or ligament trauma."
"Cumulative evidences also show that, apart from releasing catabolic enzymes, inflammatory cells can ultimately favor tissue healing through different biological processes."
"Indeed, after the clearance of pathogens and other signals of danger, neutrophils will undergo apoptosis and be engulfed by phagocytic macrophages. Macrophages will then release growth factors that can stimulate fibroblast proliferation, collagen synthesis, and angiogenesis during the early phase of healing."
D.Marsolais, et al
Inflammatory cells do not decrease the ultimate tensile strength of intact tendons in vivo and in vitro: protective role of mechanical loading
Journal Of Applied Physiology.......Volume 102 #1......January 2007.....page 11 - 17
Restatement Of The Facts --------------------
--- The strength of the involved tissue must be raised to a sufficient level to match the strength needed to endure your training.
--- Start with whatever amount of weight is well tolerated, and progress from there.
--- follow a "hurt not harm" principle.....when doing high intensity strength training of the involved tissues.
--- Avoid recurrent attempts to return to training before the tissue has acquired the strength necessary to endure your training loads.
The problem should improve, if not resolve, quickly with strength training (within a few days following 4 back to back strength sessions).
.