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151 The nordic hamstring exercise: awareness, implementation and opinion of worldwide athletes
  1. Wesam Saleh A Al Attar1,2,3,
  2. Amirah M Akkam1,
  3. Nada N Al Hazmi1,
  4. Eman F Aljedaani1,
  5. Hussain Saleh H Ghulam4,
  6. Hend A Dorgham5,
  7. Ross H Sanders3
  1. 1Department of Physical Therapy, Faculty of Applied Medical Science, Umm Al Qura University, Makkah, Saudi Arabia
  2. 2Department of Sport, Exercise and Health, Faculty of Medicine, University of Basel, Basel, Switzerland
  3. 3Discipline of Exercise and Sport Science, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
  4. 4Department of Rehabilitation Medical Sciences, Faculty of Applied Medical Science, Najran University, Najran, Saudi Arabia
  5. 5Department of Physical Therapy, Ras Eltein General Hospital, Alexandria, Egypt


Background The Nordic hamstring exercise is an effective program in reducing the hamstring injuries, which is one of the most common non-contact lower limb injuries, especially in sports requiring acceleration, maximal sprints, and sudden change in direction of running, as sprinting, soccer, and rugby.

Objective To assess the awareness, implementation, and opinion of the worldwide athletes about the Nordic hamstring exercise in preventing hamstring injury.

Design A cross-sectional study.

Setting An online survey for different sports.

Patients (or Participants) A total of 1142 male and female athletes from different sports (American football, athletics, badminton, baseball, basketball, bodybuilding, boxing, cricket, CrossFit, cycling, soccer, gymnastics, handball, ice hockey, ice skating, judo, ju-jitsu, karate, korfball, lacrosse, modern pentathlon, netball, rugby league, rugby union, running, skateboarding, skiing, snowboarding, softball, squash, swimming, table tennis, taekwondo, tchoukball, tennis, trampolining, volleyball, weightlifting and wrestling) completed the survey.

Interventions (or Assessment of Risk Factors) The questionnaire consisted of questions relating to the awareness level, implementation rate and opinion of the Nordic hamstring exercise.

Main Outcome Measurements The primary outcomes were awareness level, implementation rate, and opinion of the effectiveness of the Nordic hamstring exercise in hamstring injury.

Results A total of 641 (56%) of the athletes were aware of the Nordic hamstring exercise, 519 (45.4%) were implementing the Nordic hamstring exercise in their current practice. Athletes who implemented the Nordic hamstring exercise reported a positive opinion about the program efficacy, with a score of 8.4 ±1 out of 10.

Conclusions Many athletes were aware of the Nordic hamstring exercise and implementing it in their training routine, as they found it effective in decreasing the hamstring injury rates. However, further work needs to be done to educate athletes about the importance of implementing the exercise and its effectiveness in preventing hamstring injury to enhance implementation.

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