Affiliations: [a] Middle East Technical University, Department of
Physical Education and Sports, Ankara, Turkey | [b] Middle East Technical University, Medical Center,
Ankara, Turkey
Note: [] Address for correspondence: Yasar Salci, Middle East Technical
University, Faculty of Education, Department of Physical Education and Sport,
Ankara 06531, Turkey. Tel.: +90 312 2104021; Fax: +90 312 2107968; E-mail:
ysalci@metu.edu.tr
Abstract: Objective: To investigate the effects of eccentric hamstring
training on strength measures and vertical jumping performance. Methods:
26 male basketball players aged 10–12 were divided into Nordic Hamstring
Strength Training group (N=15) and control group (N=11). Training was
conducted over a 5-week period during which both groups participated in
basketball training. All participants underwent pre- and post-training testing
comprising isokinetic concentric and eccentric knee extension and flexion
strength and vertical jump performance. Results: The NHST group exhibited
significant increase in eccentric hamstring strength (p< 0.05) and
vertical jumping ability (p< 0.01) whereas the performance of the control
group remained unchanged during that period. Conclusion: Including
eccentric exercises into entire training program improve muscular strength and
can help athletes to reach their highest potential so they produce greater
muscular forces.
