Sports Medicine Research: In the Lab & In the Field (Sports Med Res)
Wednesday, September 17, 2014

Not So Competitive Return Rates to Activity Following ACL Reconstruction

Fifty-five percent return to competitive sports following anterior cruciate ligament reconstruction surgery: an updated systematic review and meta-analysis including aspects of physical functioning and contextual factors

Ardern CL, Taylor NF, Feller JA, & Webster KE. Br J Sports Med.  Published online first August 25, 2014. doi: 10.1136/bjsports-2013-093398 http://bjsm.bmj.com/content/early/2014/08/24/bjsports-2013-093398.short

Take Home Message:  Only 55% of athletes returned to competitive sport following anterior cruciate ligament (ACL) reconstruction.  The debate continues as to whether hamstring or patellar tendon autograft is better.  However, factors that may favor return to competitive sport include younger age, male gender, elite sport, and a positive psychological response.      

Return to sport participation following anterior cruciate ligament (ACL) reconstruction is often considered a measure of surgery success.  Unfortunately, we don’t have a good estimate of how often athletes successfully return to activity rates after an ACL reconstruction and which factors (individual and external) may affect return to activity.  Therefore, Ardern and colleagues conducted a meta-analysis to determine the return to sport rate after an ACL reconstruction and which factors favored returning to play.
Monday, September 15, 2014

Acute Gains in Motion After Single Bout of Stretching Predicts Short-Term Gains

Correlation between acute and short-term changes in flexibility using two stretching techniques

Beltrao NB., Ritti-Dias RM., Pitangui ACR., De Araujo RC. Int J Sports Med. 2014; ahead of print

Take Home Message: Acute changes in flexibility after either static or PNF stretching predict the gains in flexibility after a 7-day stretching program.

We often try to improve flexibility among our patients; but yet improved flexibility often depends on the type and duration of a stretching regimen and various patient characteristics. If we could predict gains in flexibility this would help us develop more individualized flexibility plans. One strategy could be to determine if a response to an acute bout of stretching could predict flexibility gains over time. Therefore, the purpose of this study was to determine whether increases in flexibility after a single session predicted increases in flexibility after a short-term stretching training program of static stretching or proprioceptive neuromuscular facilitation (PNF).
Wednesday, September 10, 2014

2014 ESC Guidelines on Diagnosis and Management of Hypertrophic Cardiomyopathy

2014 ESC Guidelines on Diagnosis and Management of Hypertrophic Cardiomyopathy: The Task Force for the Diagnosis and Management of Hypertrophic Cardiomyopathy of the European Society of Cardiology (ESC).

Authors/Task Force members, Elliott PM, Anastasakis A, Borger MA, Borggrefe M, Cecchi F, Charron P, Hagege AA, Lafont A, Limongelli G, Mahrholdt H, McKenna WJ, Mogensen J, Nihoyannopoulos P, Nistri S, Pieper PG, Pieske B, Rapezzi C, Rutten FH, Tillmanns C, Watkins H; Authors/Task Force members. Eur Heart J. 2014 Aug 29. pii: ehu284. [Epub ahead of print]

The European Society of Cardiology has released new guidelines on the diagnosis and management of hypertrophic cardiomyopathy. This comprehensive document includes a discussion regarding the diagnosis of hypertrophic cardiomyopathy in athletes.


Sunday, September 7, 2014

Can You Hear Me Now?

Is there sufficient evidence for tuning fork tests in diagnosing fractures? A systematic review

Mugunthan K, Doust J, Kurz B, and Glasziou P. BMJ Open. 2014. 4.

Take Home Message: The use of a tuning fork in ruling out fractures is not currently recommended due to low diagnostic accuracy. Little clinical standards, low study quality and small sample size limits the results therefore more standardization and training should be done to improve its clinical efficiency.

In some situations radiographic imaging is not readily available and clinicians must attempt to assess an injury with other tools such as a tuning fork. Unfortunately, the diagnostic accuracy of tuning forks is not known. Therefore, Mugunthan and colleagues completed a systematic review to determine the diagnostic accuracy of tuning forks for assessing fracture.
Friday, September 5, 2014

Recommendations for Policy Development Regarding Sport-Related Concussion Prevention and Management in Canada

Recommendations for Policy Development Regarding Sport-Related Concussion Prevention and Management in Canada

Frémont P, Bradley L, Tator CH, Skinner J, Fischer LK; from the Canadian Concussion Collaborative. Br J Sports Med. 2014 Jul 12. pii: bjsports-2014-093961. doi: 10.1136/bjsports-2014-093961. [Epub ahead of print]


“The Canadian Concussion Collaborative (CCC) is composed of health-related organizations concerned with the recognition, treatment and management of concussion….The objective of this document is to make recommendations regarding the need for relevant authorities to develop policies about concussion management in sports. The recommendations can be used to advocate for regulations, policies or legislation to improve concussion prevention and management at all levels of sport.” The first recommendation notes that organizations that are affiliated with sporting events with a risk of concussion should be required to develop/adopt and implement a concussion management protocol. The second recommendation notes that when qualified medical resources for concussion management are not available then a multidisciplinary approach should be used to optimize concussion management outcomes.

Wednesday, September 3, 2014

Education and Interaction may be the Key to Successful Subacromial Impingement Syndrome Therapy

The effects of scapular mobilization in patients with subacromial impingement syndrome: Randomized, double-blind, placebo-clinical trial

Aytar A., Baltaci G., Uhl T., Tuzun H., Oztop P., Karatas M. Journal of Sport Rehabilitation. 2014; ahead of print

Take Home Message: Scapular mobilizations, sham mobilizations, and supervised exercise can help alleviate symptoms related to subacromial impingement syndrome but no intervention was most effective.

Subacromial impingement syndrome accounts for 44 to 66% of all shoulder pain complaints. Clinicians may use many types of manual therapy interventions to regain motion and improve function (for example, scapular mobilization); however, there is limited evidence to support the benefits and effectiveness of scapular mobilization. Therefore, the authors conducted a randomized clinical trial to determine the effects of scapular mobilization on function, pain, range of motion, and satisfaction among patients with subacromial impingement syndrome.
Friday, August 29, 2014

Helmet to Helmet II: Full Data Set Show Helmet Type Does Not Reduce Risk of Concussion in High School Football

Protective Equipment and Player Characteristics Associated With the Incidence of Sport-Related Concussion in High School Football Players: A Multifactorial Prospective Study
McGuine A., Hetzel T., McCrea M., Brooks, M. Am J Sports Med. 2014; ahead of print.
http://www.ncbi.nlm.nih.gov/pubmed/25060072

Take Home Message: No particular brand of helmet reduces the risk of sustaining a sports-related concussion among high school football athletes. Athletes who wore custom fitted mouth guards and had a history of concussions had a higher rate of concussion.


In September of 2013, preliminary findings from a concussion surveillance program found that contrary to recent equipment manufacturers' claims there were no associations with a specific helmet brand and a reduction in the risk and severity of sports-related concussions (SRC) during a single football season. These finding were noteworthy because they were some of the first to comment on the risk of SRC in high school athletes who may be using newer helmet technology. In the current study, the same research group expands upon their data set by pooling data from the 2012 and 2013 football seasons.