THE ROLE OF ECCENTRIC STRENGTH EXERCISES IN INJURY PREVENTION OF HAMSTRING STRAINS IN TRACK AND FIELD SPRINTERS
Author
Jones, Matthew
Date
2014Type
Thesis
Publisher
Cardiff Metropolitan University
Metadata
Show full item recordAbstract
Objective: To investigate the effects of a six week eccentric hamstring muscle
strength training intervention upon subsequent eccentric hamstring muscle strength
performance and injury prevention of hamstring strains.
Method: 11 regional and university level 400 metre track and field sprinters, (mean ±
S: age 20.09 ± 1.76 years, height 174.82 ± 1.76 cm, body mass 72.10 ± 8.33 kg, 400
metre performance 54.18 ± 3.92 seconds) volunteered to take part in the study. An
isokinetic dynamometer was used to measure the participants’ unilateral eccentric
hamstring muscle strength peak torque (Nm) and concentric quadriceps muscle
strength peak torque (Nm) at an angular velocity of 60 degrees per second (˚/s-1),
prior and subsequent to a six week eccentric hamstring muscle strength training
intervention. Bi-lateral eccentric hamstring muscle strength peak torque, percentage
bi-lateral eccentric hamstring muscle strength deficit and functional hamstring
muscle strength imbalance ratios were analysed using a paired T-test, to compare
any significant differences in the performance variables following the training
intervention.
Results: The results reported no significant differences in any of the variables
following the six week eccentric hamstring muscle strength training intervention. Bilateral
eccentric hamstring muscle strength peak torque (p> 0.239), percentage bilateral
eccentric hamstring muscle strength deficit (p> 0.075) and functional
hamstring muscle strength imbalance ratios (p> 0.259) were all above the (p<0.05)
value.
Conclusion: Consequently, it appears the use of six week eccentric hamstring
muscle strength training intervention had no significant effect on the eccentric
hamstring muscle strength characteristics in 400 metre track and field sprinters.
However, due to the large multitude of factors affecting eccentric hamstring muscle
strength performance, these results should prompt further research on divergent
populations.
Description
DEGREE OF BACHELOR OF SCIENCE (HONOURS)
SPORT CONDITIONING, REHABILITATION AND
MASSAGE
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