Journal article
Effect of concentric and eccentric hamstring training on sprint recovery, strength and muscle architecture in inexperienced athletes
Journal of Science and Medicine in Sport, Vol.22(7), pp.769-774
2019
Abstract
Objectives: To investigate whether five-weeks of concentric (CON) or eccentric (ECC) hamstring strength training have different effects on recovery from sprint running, eccentric strength and architecture of the biceps femoris long head (BFLH). Design: Cohort study. Methods: Thirty males (age, 22.8±4.1 y; height, 180.1±6.4 cm; weight, 85.2±14.6 kg) were allocated into either a CON or ECC group, both performing nine sessions of resistance training. Prior to and immediately after the five-week intervention, each participant's BFLH fascicle length (FL), pennation angle (PA), muscle thickness (MT), peak isometric KF torque and Nordic eccentric strength were assessed. Post-intervention, participants performed two timed sprint sessions (10 × 80 m) 48 h apart. Blood samples and passive KF torques were collected before, immediately after, 24 h and 48 h after the first sprint session. Results: After five-weeks of strength-training, fascicles lengthened in the ECC (p < 0.001; d = 2.0) and shortened in the CON group (p < 0.001; d = 0.92), while PA decreased for the ECC (p = 0.001; d = 0.52) and increased in the CON group (p < 0.001; d = 1.69). Nordic eccentric strength improved in both ECC (p < 0.001; d = 1.49) and CON (p < 0.001; d = 0.95) groups. No between-group differences were observed in peak isometric strength (p = 0.480), passive KF torques (p = 0.807), sprint performance decrements between sprint sessions (p = 0.317) and creatine kinase (p = 0.818). Conclusions: Despite inducing significant differences in BFLH muscle architecture, there were no significant between group differences in sprint performance decrements across two sprint sessions.
Details
- Title
- Effect of concentric and eccentric hamstring training on sprint recovery, strength and muscle architecture in inexperienced athletes
- Authors
- Steven J Duhig (Author) - Griffith UniversityMatthew N Bourne (Author) - Griffith UniversityRobert L Buhmann (Author) - Queensland University of TechnologyMorgan D Williams (Author) - University of South Wales, United KingdomGeoffrey M Minett (Author) - Queensland University of TechnologyLlion A Roberts (Author) - Griffith UniversityRyan G Timmins (Author) - Australian Catholic UniversityCasey K E Sims (Author) - Queensland University of TechnologyAnthony J Shield (Author) - Queensland University of Technology
- Publication details
- Journal of Science and Medicine in Sport, Vol.22(7), pp.769-774
- Publisher
- Elsevier Australia
- DOI
- 10.1016/j.jsams.2019.01.010
- ISSN
- 1440-2440
- Organisation Unit
- School of Health and Behavioural Sciences - Legacy; School of Health and Sport Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health - Sports & Exercise Science
- Language
- English
- Record Identifier
- 99451264102621
- Output Type
- Journal article
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