Authors
Steven J. Duhig
Matthew N. Bourne
Robert L. Buhmann
Morgan Williams
Geoffrey M. Minett
Llion A. Roberts
Ryan Gregory Timmins, Australian Catholic UniversityFollow
Casey Sims
Anthony J. Shield
Publication Date
2019
Publication Details
Duhig, S. J, Bourne, M. N, Buhmann, R. L, Williams, M., Minett, G. M, Roberts, L. A, Timmins, R. G, Sims, C. & Shield, AJ. (2019). Effect of concentric and eccentric hamstring training on sprint recovery, strength and muscle architecture in inexperienced athletes [accepted manuscript]. Journal of Science and Medicine in Sport,22(7), 769-774. United Kingdom: Elsevier. Retrieved from https://doi.org/10.1016/j.jsams.2019.01.010
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
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.
School/Institute
School of Exercise Science
Document Type
Open Access Journal Article
Access Rights
Open Access
Table 1
Duhig_2019_Effect_SUPP_Table2.pdf (8 kB)
Table 2
Duhig_2019_Effect_SUPP_Figure1.jpg (89 kB)
Figure 1
Duhig_2019_Effect_SUPP_Figure2.jpg (60 kB)
Figure 2
Duhig_2019_Effect_SUPP_Figure3.jpg (40 kB)
Figure 3