AT2 - BFlH review

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Published on November 20, 2017

Author: jasonhook

Source: authorstream.com

Slide1: S hort biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite AFL athletes: a prospective cohort study Ryan G Timmins, Matthew N Bourne, Anthony J Shield, Morgan D Williams, Christian Lorenzen , David A Opar BRIEF BACKGROUND: BRIEF BACKGROUND Why is Hamstring prevention so important?: Why is Hamstring prevention so important? Prevalence (37% of all muscle strain injuries) HIS are not declining 30%^ Time loss / Injury severity due to HSI Imbalances Performance Statistics in AFL: RISK FACTORS: Modifiable vs. Non-Modifiable : RISK FACTORS: Modifiable vs. Non-Modifiable RESULTS: RESULTS Average 7.8 missed matches per club Of the 27 Injuries, 8 were reinjured that resulted in 2.5 x the average time loss of original injury. (3.2 weeks) Timmins, R.G., Bourne, M.N., Shield, A.J., Williams, M.D., Lorenzen , C. and Opar , D.A., 2016. Short biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite football (soccer): a prospective cohort study. Br J Sports Med, 50(24), pp.1524-1535. Further analysis: Further analysis FIGURE 2 FIGURE 3 FIGURE 1 (ABOVE) CONSIDERATIONS of this study: CONSIDERATIONS of this study GENERALISED - Cross reference with other ”like” sports - In depth - Multiple meta analysis when comparing data * Table 1 – 5 Measure for knee flexor strength was not made relative to anterior muscle group - Why is this important? - What did it tell us? Considerations of this study: Considerations of this study Lack of athlete exposure to data - Training VERSE play? Muscle fascicle length was only performed on BFlH - Interplay of other muscle groups? So much to think about… Compare / research: Compare / research FIGURE 1 ABOVE – S TANDARDISED MEAN OF AGE AS A RISK FACTOR PREVIOUS HAMSTRING STRAIN INJURY & OTHER INJURIES 13 Other studies reported on previous hamstring injury as potential risk factor in hamstring strain injuries. AFL Setting 2.1 x more likely to sustain another hamstring injury. Three studies found that previous ACL or Calf injury demonstrated an association and recurrent hamstring injury. COMPARE / RESEARCH: COMPARE / RESEARCH Freckleton, G. and Pizzari , T., 2012. Risk factors for hamstring muscle strain injury in sport: a systematic review and meta-analysis. Br J Sports Med, pp.bjsports-2011. FIGURE 2: STANDARDISED MEAN FOR CONCENTRIC HAMSTRING TO QUADRICP RATIO INJURY PREVENTION: INJURY PREVENTION Evaluate Condition Strengthen Heiderscheit , B.C., Sherry, M.A., Silder , A., Chumanov , E.S. and Thelen , D.G., 2010. Hamstring strain injuries: recommendations for diagnosis, rehabilitation, and injury prevention. journal of orthopaedic & sports physical therapy, 40(2), pp.67-81. Personal opinion: Personal opinion Injury will occur Individualised (Injury + Prevention) Rehabilitation is crucial to do right THANK YOU: THANK YOU REFERENCES: REFERENCES Heiderscheit , B.C., Sherry, M.A., Silder , A., Chumanov , E.S. and Thelen , D.G., 2010. Hamstring strain injuries: recommendations for diagnosis, rehabilitation, and injury prevention. journal of orthopaedic & sports physical therapy, 40(2), pp.67-81. Freckleton, G. and Pizzari , T., 2012. Risk factors for hamstring muscle strain injury in sport: a systematic review and meta-analysis. Br J Sports Med, pp.bjsports-2011. Timmins, R.G., Bourne, M.N., Shield, A.J., Williams, M.D., Lorenzen , C. and Opar , D.A., 2016. Short biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite football (soccer): a prospective cohort study. Br J Sports Med, 50(24), pp.1524-1535.

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