LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Ayala, Francisco; De Ste Croix, Mark B; Sainz de Baranda, Pilar; Santonja, Fernando (2014)
Publisher: Elsevier
Languages: English
Types: Article
Subjects: RC1200
The purposes were twofold: (a) to ascertain the inter-session reliability of hamstrings total reaction time,\ud pre-motor time and motor time; and (b) to examine sex-related differences in the hamstrings reaction\ud times profile. Twenty-four men and 24 women completed the study. Biceps femoris and semitendinosus\ud total reaction time, pre-motor time and motor time measured during eccentric isokinetic contractions\ud were recorded on three different occasions. Inter-session reliability was examined through typical\ud percentage error (CVTE), percentage change in the mean (CM) and intraclass correlations (ICC). For both\ud biceps femoris and semitendinosus, total reaction time, pre-motor time and motor time measures demonstrated\ud moderate inter-session reliability (CVTE < 10%; CM < 3%; ICC > 0.7). The results also indicated\ud that, although not statistically significant, women reported consistently longer hamstrings total reaction\ud time (23.5 ms), pre-motor time (12.7 ms) and motor time (7.5 ms) values than men. Therefore, an\ud observed change larger than 5%, 9% and 8% for total reaction time, pre-motor time and motor time respectively\ud from baseline scores after performing a training program would indicate that a real change was\ud likely. Furthermore, while not statistically significant, sex differences were noted in the hamstrings reaction\ud time profile which may play a role in the greater incidence of ACL injuries in women.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • 2. Atkinson G, Nevill AM. Statistical methods for assessing measurement error (reliability) in variables relevant to sports medicine. Sports Med 1998;26:217-38.
    • 3. Bell DG, Jacobs I. Electromechanical response-times and rate of force development in males and females. Med Sci Sports Exerc 1986;18:31-6.
    • 4. Bell DR, Myrick MP, Blackburn JT, Shultz SJ, Guskiewicz KM, Padua DA. The effect of menstrual-cycle phase on hamstring extensibility and muscle stiffness. J Sport Rehabi 2009;18:553-63.
    • 5. Besier TF, Lloyd DG, Ackland TR. Muscle activation strategies at the knee during running and cutting maneuvers. Med Sci Sports Exerc 2003;35:119-27.
    • 6. Bishop D. Warm up I: potential mechanisms and the effects of passive warm up on exercise performance. Sports Med 2003;33:439-54.
    • 7. Blackburn JT, Bell DR, Norcross MF, Hudson JD, Engstrom LA. Comparison of hamstring neuromechanical properties between healthy males and females and the influence of musculotendinous stiffness. J Electromyogr Kinesiol 2009;19(5):e362-9.
    • 8. Blackburn JT, Riemann BL, Padua DA, Guskiewicz KM. Sex comparison of active extensibility, passive, and active stiffness of the knee flexors. Clin Biomech 2004;19(1):36- 43.
    • 9. Bodcn BP, Dean GS, Feagin JA, et al. Mechanisms of anterior cruciate ligament injury. Orthopedics 2000;23:573-8.
    • 10. Bompa TO. Periodización del entrenamiento deportivo (Programas para obtener el máximo rendimiento en 35 deportes). Barcelona; Editorial Paidotribo, 2000: 157
    • 11. Botwinick J, Thompson LW. Premotor and motor components of reaction time. J Exp Psychol 1966;71:9-15.
    • 12. Eiling E, Bryant AL, Petersen W, Murphy A, Hohmann E. Effects of menstrual-cycle hormone fluctuations on musculotendinous stiffness and knee joint laxity. Knee Surg Sports Traumatol Arthrosc 2007;15:126-32.
    • 13. Granata KP, Wilson SE, Padua DA. Gender differences in active musculoskeletal stiffness. Part I. Quantification in controlled measurements of knee joint dynamics. J Electromyo Kinesiol 2002;12:119-26.
    • 14. Griffin LY, Albohm MJ, Arendt EA, Bahr R, Beynnon BD, Demaio M, Dick RW, Engebretsen L, Garrett WE, Hannafin JA, Hewett TE, Huston LJ, Ireland ML, Johnson RJ, Lephart S, Mandelbaum BR, Mann BJ, Marks PH, Marshall SW, Myklebust G, Noyes FR. Powers C, Shields C, Shultz SJ, Silvers H, Slauterbeck J, Taylor DC, Teitz CC, Wojtys EM, Yu B. Understanding and preventing noncontact anterior cruciate ligament injuries: a review of the Hunt Valley II meeting, January 2005. Am J Sports Med 2006;34:1512-32.
    • 15. Hewett TE, Lindenfeld TN, Riccobene JV, Noyes FR. The effect of neuromuscular training on the incidence of knee injury in female athletes. A prospective study. Am J Sports Med 1999;27:699-706
    • 16. Hewett TE, Myer GD, Ford KR, Heidt RS, Colosimo AJ, McLean SG, van den Bogert AJ,
    • 18. Hopkins WG. Measures of reliability in sports medicine and science. Sports Med 2000;30:1-15.
    • 19. Hughes G, Watkins J. A risk-factor model for anterior cruciate ligament injury. Sports Medicine 2006;36:411-28.
    • 20. McLean SG, Borotikar B, Lucey SM. Lower limb muscle pre-motor time measures during a choice reaction task associate with knee abduction loads during dynamic single leg landings. Clin Biomech 2010;25:563-9.
    • 21. Merletti R, Parker P. Electromyography: Physiology, Engineering and Non-Invasive Applications, IEEE Press Series on Biomedical Engineering. New York, NY: Wiley-IEEE Press, 2004;187-203.
    • 22. Minshull C, Gleeson N, Walters-Edwards M, Eston R, Rees D. Effects of acute fatigue on the volitional and magnetically-evoked electromechanical delay of the knee flexors in males and females. Eur J Appl Physiol 2007;100:469-78
    • 23. Moore BD, Drouin J, Gansneder BM, Shultz SJ. The differential effects of fatigue on reflex response timing and amplitude in males and females. J Electromyo Kinesiol 2002;12:351- 60.
    • 24. Pope MH, Johnson RJ, Brown DW, Tighe C. The role of the musculature in injuries to the medial collateral ligament. J Bone Joint Surg Am. 1979;61(3):398-402.
    • 25. Ristanis S, Tsepis E, Giotis D, Stergiou N, Cerulli G, Georgoulis AD. Electromechanical delay of the knee flexor muscles is impaired after harvesting hamstring tendons for anterior
    • 26. Romani W, Patrie J, Curl L, Flaws J. The correlations between estradiol, estrone, estriol, progesterone, and sex hormone-binding globulin and anterior cruciate ligament stiffness in healthy, active females. J Women's Health 2003;12:287-98.
    • 27. Smith HC, Vacek P, Johnson RJ, Slauterbeck JR, Hashemi J, Shultz S, Beynnon BD. Risk Factors for Anterior Cruciate Ligament Injury: A Review of the Literature - Part 1: Neuromuscular and Anatomic Risk. Sports Health: A multidisciplinary Approach 2012;1:69-78.
    • 28. Sole G, Hamrén J, Milosavljevic S, Nicholson H, Sullivan J. Test-retest reliability of isokinetic knee extension and flexion. Arch Phys Med Rehabil 2007;88:626-31.
    • 29. Vincent J. Statistics in kinesiology. Champaign (IL): Human Kinetics Books, 1994: 87
    • 30. Wang SS, Whitney SL, Burdett RG, Janosky JE. Lower extremity muscular flexibility in long distance runners. J Orthop Sports Phys Therapy 1993;17:102-107.
    • 31. Weir JP. Quantifying test-retest reliability using the intraclass correlation coefficient and the SEM. J Strength Cond Res 2005;19:231-40.
    • 32. Weiss AD. The locus of reaction time change with set, motivation, and age. J Gerontol 1965;20:60-4
    • 33. Winter EM, Brookes FB. Electromechanical response times and muscle elasticity in men and women. Eur J Appl Physiol Occup Physiol 1991;63:124-28.
    • 34. Worrell TW, Denegar CR, Armstrong SL, Perrin DH. Effect of body position on hamstring muscle group average torque. J Orthop Sports Phys Therapy 1990;11:449-52.
    • 35. Worrell TW, Perrin DH, Denegar CR. The influence of hip position on quadriceps and hamstring peak torque and reciprocal muscle group ratio values. J Orthop Sports Phys Therapy 1989;11:104-7.
    • 36. Zhou S, Lawson DL, Morrison WE, Fairweather I. Electromechanical delay in isometric muscle contractions evoked by voluntary, reflex and electrical stimulation. Eur J Appl Physiol Occup Physiol 1995;70:138-45.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article