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Swimming Science: Understanding the Differences Between Shoulder Soreness and Shoulder Injury
John Mullen, PT, DPT, CSCS

Original article:

http://www.swimmingworldmagazine.com/lane9/news/ascaeducation/36283.asp

SANTA CLARA, California, October 16. DIFFERENTIATING pain and soreness is extremely difficult. This results in many swimmers assuming shoulder pain is expected in the sport and/or many coaches ignoring or not monitoring pain levels correctly. The practical implication of this piece may sound "soft," but swimming with no shoulder pain and minimal shoulder soreness is the ideal route for improving the absurdly high injury rate in the sport. The implications suggest excessive soreness hinders the sport of swimming more than it helps, due to the biomechanical alterations accompanying soreness.

When educating coaches and swimmers, I previously discussed the importance of understanding the injury process, but improving the perceptions and beliefs of shoulder pain and swimmers is perhaps more pertinent. In a recent study reviewed in Swimming Science Research Review, 102 swimmers between 13 and 18 years old from seven swim clubs were given a survey with questions regarding swimming practice and shoulder pain. Mild pain was depicted as a 0 - 4/10, moderate was 5 - 7/10, and severe was 8 - 10/10 (Hibberd 2013).

This study found that participants completed an average of 6.98 practices per week of 6,000 - 7,000 yards/practice. On average, 4.21 dry-land sessions were performed each week. The majority of swimmers believed that mild and moderate shoulder pain is normal and should be tolerated. Overall, 85 percent of high school-aged club swimmers reported mild shoulder pain in the past year, 61 percent reported moderate shoulder pain, and 21 percent reported severe shoulder pain. Of these, only 14 percent had been to a physician. Seventy-three percent report using pain medication to manage their shoulder pain and 47 percent used it regularly, as in one or more times per week (Hibberd 2013).

Coaches to Blame?

The seriousness of the study is obvious, ranging from the high incidence rate to the potential long-term effects of pain medication on satellite cells. Perhaps I'm naive, but coaches aren't to blame (Schoenfeld 2012). Instead, the lack of education for coaches and swimmers about the risks of swimming with high levels of shoulder pain, whether it stems from soreness or injury, is to blame. If coaches are to blame, then why are they primarily using dry-land to prevent injuries? (Krabak 2013)

Pain vs. Soreness

Perhaps one gap is understanding whether shoulder pain is from soreness or injury. This is a frequent question in my seminars, and after all my research I still don't have a simple answer! Luckily, as a swim coach, parent or swimmer, you don't have to differentiate the two, because pain and soreness behave similarly. If pain is reaching a level higher than 3 out of 10, it is likely impairing stroke biomechanics and performance in practice. Faulty biomechanics are also more stressful to the shoulder, aiding to a risk of a debilitating injury. Previous education suggested swimmers "continue to train" in 4 - 5/10 pain, but it seems radical to push the envelope of injury during a period where improper form and movement patterns are followed! (Pink 2011) All swimmers could probably swim with 4 - 5/10 pain most of the time and not result with an injury or inflammation, but is it worth the risk? One must also account for how each individual responds to pain/discomfort, as the principle of individuality definitely comes into play.

For the Coaches

Once again, differentiating pain and soreness is extremely difficult as a coach (and even a rehabilitation specialist). Luckily, as a coach, swimmer or parent it is not necessary to diagnosis or even differentiate the two, since high levels of pain, whether from soreness or pain cause similar stroke deteriorations. However, understanding the injury process is essential for any coach and swimmer in differentiating pain and soreness. This process gives the coach the information when to refer a swimmer to the appropriate channel. As a coach, swimmers rely on you for many concerns, often for things outside of your field of expertise, forcing a coach to be an intermediary. As an intermediary, it is vital to understand numerous topics and have appropriate outlets. Unfortunately, swim coaches sometimes fall into two categories:

1) The Outsourcer: These coaches always send swimmers to physicians or rehabilitation specialists at the first sensation of soreness. This practice increases medical costs and over-awareness of swimmers.

2) The Know-it-all: The other extreme is the coach who never sends their swimmers to a rehabilitation specialist (unfortunately, the most likely occurrence, from the lack of swimmers seeing rehabilitation specialists), resulting in many swimmers with untreated shoulder pain.

As a coach, understand the basics and having trustful, helpful outlets is vital. Many teams have parents who are physical therapists, chiropractors, physicians or another rehabilitation specialists. Use these tools at your disposal and use them wisely!

For the Swimmers

Much of the incidence of shoulder pain is blamed on the coach, when typically the swimmer has a role as well. First, biomechanics play a predominant role in swimming, yet many swimmers unwillingly do not adjust biomechanical suggestions by coaches. This lack of initiation is aided by coaches' not properly teaching motor control, but as the saying goes, you can take a horse to the drinking hole, but you can't make them drink!

Also, it is vital for swimmers to communicate their shoulder pain with their coach. Some may feel this is excessive, but constant communication and feedback is truly necessary for individualized programs and the ability to monitor pain/injury. This means, when something hurts, tell your coach! Don't simply bite your lip and move along. Communicate with them about the issue and they will guide you. In the world of infinite information, many parents and swimmers feel they are smarter than a swim coach (perhaps we should syndicate this show...).

Whether your coach has a Ph.D. or a GED, it is essential for the swimmer and parent to realize that the coach has experience, and this experience is something a swimmer or parent often doesn't have. Experience is a vital component when it comes to humans, as research doesn't prove anything and individuality is essential. Luckily, most coaches have dealt with numerous swimmers with similar issues as you or your swimmer, helping streamline improvement. In most cases, coaches have the best interest in mind for each swimmer. Realize this, let them use their experience, and if any questions arise, schedule an individualized meeting. This concept goes beyond injury prevention/rehabilitation and into all forms of training, as must coaches are willing to discuss concerns, when they are brought up at the appropriate time and setting. Nonetheless, keep communicating and being on the same team, as both parties are in skating towards the same goal!

Practical Implication

Once again, this may seem radical, but any pain (soreness or injury) greater than 3/10 in trained swimmers is unwarranted and feeding into the injury rate and the lack of improvement in biomechanics. Individualize your athletes' programming, from injury prevention to volume of workouts and adjust these plans from their feedback. Remember, each person is different, so let communication be the light, instead of shooting in the dark!

If you want to learn more about shoulder injuries in swimmers or see a presentation on this topic, consider purchasing the 2nd edition of the Swimmer's Shoulder System.

References

Hibberd EE, Myers JB. Practice Habits and Attitudes and Behaviors Concerning Shoulder Pain in High School Competitive Club Swimmers. Clin J Sport Med. 2013 Sep 13. [Epub ahead of print]

Pink MM, Edelman GT, Mark R, Rodeo SA. Applied biomechanics of swimming. In: Magee DJ, Manske RC, Zachazewski JE, Quillen WS, ed. Athletic and Sport Issues in Musculoskeletal Rehabilitation, 2nd ed. Philadelphia, PA: WB Saunders; 2011:331-49.

Krabak BJ, Hancock KJ, Drake S. Comparison of Dry-Land Training Programs Between Age Groups of Swimmers. PM R. 2013 Jan 29. doi:pii: S1934-1482(12)01710-8. 10.1016/j.pmrj.2012.11.003. [Epub ahead of print]

Schoenfeld BJ. The use of nonsteroidal anti-inflammatory drugs for exercise-induced muscle damage: implications for skeletal muscle development. Sports Med. 2012 Dec 1;42(12):1017-28. doi: 10.2165/11635190-000000000-00000. Review.

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