Hamstring Eccentric Strengthening Program: Does Training Volume Matter?
| Autor: | Simon Avrillon, Ben M Simpson, Mathieu Lacome, Martin Buchheit, Yannick Cholley, Gaël Guilhem |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Training set business.industry Physical Therapy Sports Therapy and Rehabilitation 030229 sport sciences Eccentric strength Biceps 03 medical and health sciences 0302 clinical medicine Physical therapy Eccentric training Medicine Fascicle length Eccentric Orthopedics and Sports Medicine business 030217 neurology & neurosurgery Hamstring Ultrasound scanner |
| Zdroj: | International journal of sports physiology and performance. |
| ISSN: | 1555-0273 |
| Popis: | Aim: To compare the effect of low versus high volume of eccentric-biased hamstring training programs on knee-flexor strength and fascicle length changes in elite soccer players. Methods: A total of 19 elite youth soccer players took part in this study and were randomly assigned into 2 subgroups. For 6 weeks in-season, the groups performed either a low-volume (1 set per exercise; 10 repetitions in total) or a high-volume (4 sets; 40 repetitions) eccentric training of their knee flexors. After 6-weeks midtraining (MID), players performed the alternate training regimen. Each training set consisted of 4 repetitions of the Nordic hamstring exercise and 6 repetitions of the bilateral stiff-leg deadlift. Eccentric knee-flexor strength (NordBord) as well as biceps femoris long head and semimembranosus fascicle length (scanned with ultrasound scanner) were assessed during pretraining (PRE), MID, and posttraining (POST) tests. Results: Knee-flexor eccentric strength very likely increased from PRE to MID (low volume: +11.3% [7.8%] and high volume: 11.4% [5.3%]), with a possibly-to-likely increase in biceps femoris long head (+4.5% [5.0%] and 4.8% [2.5%]) and semimembranosus (+4.3% [4.7%] and 6.3% [6.3%]) fascicle length in both groups. There was no substantial changes between MID and POST. Overall, there was no clear between-group difference in the changes from PRE to MID and MID to POST for neither knee-flexor eccentric strength, biceps femoris long head, nor semimembranosus fascicle length. Conclusions: Low-volume knee-flexor eccentric training is as effective as a greater training dose to substantially improve knee-flexor strength and fascicle length in-season in young elite soccer players. Low volume is, however, likely more appropriate to be used in an elite team facing congested schedules. |
| Databáze: | OpenAIRE |
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