Sports Medicine Research: In the Lab & In the Field (Sports Med Res)


Monday, February 19, 2018

What if I told you… compliance is key to reducing injuries

A multinational cluster randomized controlled trial to assess the efficacy of ‘11+ Kids’: A warm-up programme to prevent injuries in children’s football

Rossler R, Junge A, Bizzini M, Verhagen E, Chomiak J, aus der Funten K, Meyer T, Dvorak J, Lichtenstein E, Beaudouin F, Faude O. Sports Med (2017).

Take Home Message: The ‘11+ Kids’, an injury prevention warm-up program tailored for younger athletes, is effective in reducing injuries in youth soccer by nearly 50%; but, compliance is a key factor for optimal success.
Injury prevention for youth soccer is challenging because injury mechanisms and athlete biomechanics and characteristics are different in those under 14 years of age compared with adults. The development of ‘11+ Kids’ – a modification of the FIFA 11+ used for adult soccer players – was designed to be an injury prevention warm-up program for young athletes.  However, there is a lack of research on this new injury prevention program. Hence, the researchers conducted a randomized trial to evaluate the efficacy of ‘11+ Kids’ by comparing incidence of injuries among clubs that represented 3 different age groups ([Under 9, Under 11, Under 13] mean age=10.8) from four different European countries.
Thursday, February 15, 2018

Risk factors, diagnosis and non-surgical treatment for meniscal tears: evidence and recommendations: a statement paper commissioned by the Danish Society of Sports Physical Therapy (DSSF)

Risk factors, diagnosis and non-surgical treatment for meniscal tears: evidence and recommendations: a statement paper commissioned by the Danish Society of Sports Physical Therapy (DSSF).

Thorlund JB, Juhl CB, Ingelsrud LH, Skou ST. Br J Sports Med. 2018 Feb 2. pii: bjsports-2017-098429. doi: 10.1136/bjsports-2017-098429. [Epub ahead of print]

The Danish Society of Sports Physical Therapy commissioned a statement “to determine the key risk factors for meniscal tears, assess the diagnostic value of different clinical tests used for the diagnosis of meniscal tears, and evaluate the role of non-surgical treatments for patients with traumatic and degenerative meniscal tears.” The four tables offer a nice overview of some key findings.

Wednesday, February 14, 2018

All Risk, with No Reward – Knee Injuries Linked with Total Knee Replacements

ACL and meniscal injuries increase the risk of primary total knee replacement for osteoarthritis: a matched case–control study using the Clinical Practice Research Datalink (CPRD)

Khan T, Alvand A, Prieto-Alhambra D, Culliford DJ, Judge A, Jackson WF, Scammell BE, Arden NK, & Price AJ. Br J Sports Med. 2017; Online Ahead of Print December 21, 2017.  

Take Home Message: A patient with a knee injury is more likely to get a knee replacement and be younger when getting it than someone without a history of injury.
A knee injury, such as an anterior cruciate ligament (ACL) injury or meniscal injury, is a major risk factor for the early development of knee osteoarthritis within 10 to 20 years after injury.  However, it remains unknown if a patient with a history of knee injury is likely to progress to end-state OA, which often requires a total knee replacement (TKR).  These authors used a case-control study to investigate the chance of having a TKR surgery within 20 years among patients with a history of ACL or meniscal injury compared to healthy controls. 
Monday, February 12, 2018

Neuromuscular Warm-up Reduces Risk for Knee Sprains in Elite Female Basketball Players

Neuromuscular training reduces lower limb injuries in elite female basketball players. A cluster randomized controlled trial

Bonato M, Benis R, La Torre A. Scandinavian Journal of Medicine and Science in Sports. 2017;00:1–10. doi: 10.1111/sms.13034.

Take Home Message: Elite female basketball players who participated in neuromuscular training as part of a warm-up had reduced rates of injuries, especially knee sprains, than those who participated in a warm-up without neuromuscular training.
Lower extremity injuries comprised ~62% of orthopedic injuries in the National Basketball Association. Professional female basketball players sustain 60% more knee and ankle injuries than professional male basketball players. Interventions focused on neuromuscular control improve lower extremity alignment, muscle recruiting, shock attenuation, balance, and posture, which may reduce the risk of injury. The authors conducted a clinical trial to investigate if a new neuromuscular training program designed for basketball would decrease the number of lower limb injuries among elite women basketball teams.
Wednesday, February 7, 2018

Keep Bones Strong by Participating in Sports…For Now

Sports participation in high school and college leads to high bone density and greater rates of bone loss in young men: results from a population-based study.

Minett MM, Weidauer L, Wey HE, Blinkley TL, Beare TM, and Specker BL. Calcif Tissue Int. 2018. [Epub Ahead of Print].

Take Home Message:  Sport participation in high school and college positively contributes to maintaining bone mineral density and bone mineral content. As athletes age however, these losses are less significant.
While public education about osteoporosis often focuses on women, there are significant long-term impacts on men as well. Therefore, we need to learn about how factors, like sport participation, influence bone remodeling to understand the onset and progression of osteoporosis in men. Therefore, Minett and colleagues completed a study to determine whether sports participation in high school and college was associated with bone mass or bone loss.
Monday, February 5, 2018

Does Sex and Contraception Influence Concussion Recovery?

The Effects of Sex Differences and Hormonal Contraception on Outcomes Following Collegiate Sports-Related Concussion

Gallagher V, Kramer N, Abbott K, Alexander J, Breiter H, Herrold A, Lindley T, Mjaanes J, & Reilly J. Journal of Neurotrauma. Ahead of Print. doi: 10.1089/neu.2017.5453.
Take Home Message: Male collegiate athletes may return to play sooner after a concussion than females. Females taking contraception may have less peak symptom severity than peers not taking contraception, but the days to return to play is likely similar.
There is inconclusive evidence to determine if a female is more likely to take more time to return to play following concussion than a male. Additionally, females may take hormonal contraception, but its influence on concussion recovery remains unknown. Hence, the authors’ performed a retrospective chart review to examine if peak concussion symptom severity and days to return to play differed by sex or hormonal contraception use among collegiate athletes. The authors performed a retrospective medical chart review on Division I collegiate athletes who had a physician-diagnosed concussion between 2011 and 2016.
Wednesday, January 31, 2018

For Injury Prevention it is Better to Start Young

Age Influences Biomechanical Changes After Participation in an Anterior Cruciate Ligament Injury Prevention Program

Thompson-Kolesar JA, Gatewood CT, Tran AA, Slider A, Shultz R, Delp DL, & Dragoo JL. Am J Sports Med. 2017; Online Ahead of Print December 27, 2017.  

Take Home Message: Pre-adolescent female soccer athletes had decreased knee valgus during a double leg landing task after participating in an injury prevention program.  Younger athletes seem to be ideal for prevention programming.
Previous posts have highlighted authors who demonstrated that injury prevention programs are effective at reducing anterior cruciate ligament (ACL) injuries in a variety of populations (see below).  It remains unclear as to who may benefit most from prevention programs; but, some researchers have suggested that younger athletes may benefit more than older athletes.  Therefore, these authors studied 51 pre-adolescents (10 to 12 years old) and 43 adolescent (14 to 18 years old) female soccer players to see if age influences the biomechanical changes related to an injury prevention program.