Skadesreducerende effekt af eksentrisk træning (Nordics hamstring) på akutte haseskader

skaermbillede-2016-11-26-kl-19-41-09Jesper Petersen lavede et randomiseret forsøg på en 54 fodbold hold. Holdene blev delt i to grupper. En gruppe (23 teams, 461 players) skulle lave nordic hamstring. Den anden gruppe fungerede som kontrol (27 teams, 481 players).

Nordic Hamstring protokol gruppen skulle udfører en protokol.

Resultat
I studiet blev der registreret 67 akutte hase skader (44 nye og 23 re-skader). I de 67 spiller, 15 af spillerne var i interventionsgruppen (12 nye skader og 3 re-skader) og 52 af haseskader var i kontrol gruppen (32 nye og 20 re-skader.)

Skærmbillede 2016-11-26 kl. 19.52.13.png

Studiet.

Preventive Effect of Eccentric Training on Acute Hamstring Injuries in Men’s Soccer

A Cluster-Randomized Controlled Trial, 2011, Jesper Petersen, Kristian Thorborg,… Per Hölmich

Background:

The incidence of acute hamstring injuries is high in several sports, including the different forms of football.

Purpose:

The authors investigated the preventive effect of eccentric strengthening of the hamstring muscles using the Nordic hamstring exercise compared with no additional hamstring exercise on the rate of acute hamstring injuries in male soccer players.

Study Design:

Randomized controlled trial; Level of evidence, 1.

Methods:

Fifty Danish male professional and amateur soccer teams (942 players) were allocated to an intervention group (461 players) or a control group (481 players). Players in the intervention group conducted a 10-week progressive eccentric training program followed by a weekly seasonal program, whereas players in the control group followed their usual training program. The main outcome measures were numbers of overall, new, and recurrent acute hamstring injuries during 1 full soccer season.

Results:

Fifty-two acute hamstring injuries in the control group compared with 15 injuries in the intervention group were registered. Comparing intervention versus the control group, overall acute hamstring injury rates per 100 player seasons were 3.8 versus 13.1 (adjusted rate ratio [RR], 0.293; 95% confidence interval [CI], 0.150-0.572; P \ .001). New injury rates per 100 player seasons were 3.1 versus 8.1 (RR, 0.410; 95% CI, 0.180-0.933; P = .034), whereas recurrent injury rates per 100 player seasons were 7.1 versus 45.8 (RR, 0.137; 95% CI, 0.037-0.509; P = .003). Number needed to treat [NNT] to prevent 1 acute hamstring injury (new or recurrent) is 13 (95% CI, 9-23) players. The NNT to prevent 1 new injury is 25 (95% CI, 15-72) players, and NNT to prevent 1 recurrent injury is 3 (95% CI, 2-6) players.

Conclusion:

In male professional and amateur soccer players, additional eccentric hamstring exercise decreased the rate of overall, new, and recurrent acute hamstring injuries.

Keywords: hamstring; strain; prevention; eccentric training

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