Short-Term Adaptations Following Complex Training in Team-Sports: a Meta-Analysis
Ikusi/ Ireki
Data
2017-06-29Egilea
Freitas, Tomas T.
Martínez Rodríguez, Alejandro
Alcaraz, Pedro E.
Plos One 12(6) : (2017) // Article ID e0180223
Laburpena
Objective
The purpose of this meta-analysis was to study the short-term adaptations on sprint and vertical jump (VJ) performance following Complex Training (CT) in team-sports. CT is a resistance training method aimed at developing both strength and power, which has a direct effect on sprint and VJ. It consists on alternating heavy resistance training exercises with plyometric/power ones, set for set, on the same workout.
Methods
A search of electronic databases up to July 2016 (PubMed-MEDLINE, SPORTDiscus, Web of Knowledge) was conducted. Inclusion criteria: 1) at least one CT intervention group; 2) training protocols >= 4-wks; 3) sample of team-sport players; 4) sprint or VJ as an outcome variable. Effect sizes (ES) of each intervention were calculated and subgroup analyses were performed.
Results
A total of 9 studies (13 CT groups) met the inclusion criteria. Medium effect sizes (ES) (ES = 0.73) were obtained for pre-post improvements in sprint, and small (ES = 0.41) in VJ, following CT. Experimental-groups presented better post-intervention sprint (ES = 1.01) and VJ (ES = 0.63) performance than control-groups.
Sprint
large ESs were exhibited in younger athletes (<20 years old; ES = 1.13); longer CT interventions (>= 6 weeks; ES = 0.95); conditioning activities with intensities <= 85% 1RM (ES = 0.96) and protocols with frequencies of <3 sessions/week (ES = 0.84). Medium ESs were obtained in Division I players (ES = 0.76); training programs >12 total sessions (ES = 0.74).
VJ
Large ESs in programs with >12 total sessions (ES = 0.81). Medium ESs obtained for under-Division I individuals (ES = 0.56); protocols with intracomplex rest intervals >= 2 min (ES = 0.55); conditioning activities with intensities <= 85% 1RM (ES = 0.64); basketball/volleyball players (ES = 0.55). Small ESs were found for younger athletes (ES = 0.42); interventions >= 6 weeks (ES = 0.45).
Conclusions
CT interventions have positive medium effects on sprint performance and small effects on VJ in team-sport athletes. This training method is a suitable option to include in the season planning.
Collections
Bestelakorik adierazi ezean, itemaren baimena horrela deskribatzen da:This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Attribution 4.0 International (CC BY 4.0)