Abstract
Objectives
This study compares the effect of five different training stimuli on sprinting ability
and strength production.
Design
Sixty physical education students were randomly assigned to five experimental groups:
all types of training (A), full-squat (B), parallel-squat (C), loaded countermovement
jumping (D) and plyometric training (E). Participants in each group trained three
days a week for a total of seven weeks.
Methods
Sprint performance (30 m), maximal dynamic strength (1RM) (kg) and velocity of displacement in the concentric
phase of full-squat (m/s) were measured before and after seven weeks of training.
Results
Pre-training results showed no significant differences among the groups in any of
the variables tested. After seven weeks no significant improvement in sprint performance
was found, however, significant improvement in maximal dynamic strength, velocity
of displacement were observed in all the groups: combined methods group A (20%), heavy-resistance
group B (11%), power-oriented group C (17%), ballistic group D (14%) and plyometric
group E (6%).
Conclusions
A combined training approach using full-squat, parallel-squat, loaded countermovement
jumping and plyometric training results in a light improvement in maximal strength,
velocity of displacement and sprint performance and the resemblance between movement
patterns and the velocity of displacement common to the training and testing methods
also contributes to greater performance improvement.
Keywords
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Article info
Publication history
Published online: June 25, 2012
Accepted:
May 19,
2012
Received in revised form:
May 11,
2012
Received:
November 15,
2011
Identification
Copyright
© 2012 Sports Medicine Australia. Published by Elsevier Inc. All rights reserved.
