Slow-Speed Compared With Fast-Speed Eccentric Muscle Actions Are Detrimental to Jump Performance in Elite Soccer Players In-Season.
Int J Sports Physiol Perform
; 17(9): 1425-1431, 2022 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-35894997
ABSTRACT
PURPOSE:
To examine the effect of fast- versus slow-speed eccentric-muscle-action resistance training on lower-body strength, vertical jump height, sprint speed, and change-of-direction performance in elite soccer players during a competitive season.METHODS:
Twenty-two elite soccer players, from a single team, were randomly assigned to groups that undertook either 1- (fast speed) or 4-second (slow speed) eccentric resistance training during the in-season period. A 5-week program was conducted during an elite top-division European League soccer season. Performance measures including predicted 1-repetition-maximum back squat, countermovement jump, 20-m sprint, and change of direction were tested before and after the intervention period. Total match and training running distance and muscle soreness were also recorded during each week of the intervention.RESULTS:
An analysis of covariance showed significant group effects (P = .01) for countermovement jump with a greater jump height in the 1-second fast-speed group postintervention (95% CI, 1.1-6.9 cm). Despite an overall increase in 1-repetition maximum pretraining to posttraining (95% CI, 10.0-15.3 kg, effect size 0.69), there were no significant differences (P > .05) between groups after the intervention. Similarly, there were no differences between groups for change of direction, 20-m sprint, or muscle soreness.CONCLUSION:
Faster eccentric muscle actions may be superior for increasing movements in elite soccer players in-season.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Running
/
Soccer
/
Athletic Performance
/
Resistance Training
Type of study:
Clinical_trials
Limits:
Humans
Language:
En
Journal:
Int J Sports Physiol Perform
Journal subject:
FISIOLOGIA
/
MEDICINA ESPORTIVA
Year:
2022
Document type:
Article
Affiliation country:
United kingdom