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The Journal of Sports Medicine and Physical Fitness 2016 Oct 13


Effects of volume-based overload plyometric training on maximal-intensity exercise adaptations in young basketball players

Abbas ASADI 1, 2, Rodrigo RAMÍREZ-CAMPILLO 3, 4, 5, Cesar MEYLAN 6, 7, Fabio Y. NAKAMURA 8, Rodrigo CAÑAS-JAMET 9, 10, Mikel IZQUIERDO 11, 12

1 Roudbar Branch, Islamic Azad University, Roudbar, Iran; 2 Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, Rasht, Iran; 3 Department of Physical Activity Sciences, University of Los Lagos, Osorno, Chile; 4 Department of Physical Education, Sport and Recreation, University of La Frontera, Temuco, Chile; 5 Laboratory of Exercise Sciences, MEDS Clinic, Santiago, Chile; 6 Canadian Sport Institute Pacific, Vancouver, British Columbia, Canada; 7 Canadian Soccer Association, Ottawa, Ontario, Canada; 8 Departamento de Educação Física, Universidade Estadual de Londrina, Londrina, Brazil; 9 Laboratory of Physiology, Department of Biological Sciences, Faculty of Biological Sciences, Universidad Andres Bello, Viña del Mar, Chile; 10 School of Kinesiology, Faculty of Medicine, Universidad Diego Portales, Santiago, Chile; 11 GICAEDS Group, Faculty of Physical Culture, Sport and Recreation, University of Santo Tomás, Bogotá, D.C, Colombia; 12 Department of Health Sciences, Public University of Navarra, Campus of Tudela, Navarra, Spain


BACKGROUND: To compare maximal-intensity exercise adaptations in young basketball players (who were strong individuals at baseline) participating in regular basketball training versus regular plus a volume-based plyometric training program in the pre-season period.
METHODS: Young basketball players were recruited and assigned either to a plyometric with regular basketball training group (Experimental group [EG]; n = 8), or a basketball training only group (Control group [CG]; n = 8). The athletes in EG performed periodized (i.e., from 117 to 183 jumps per session) plyometric training for eight weeks. Before and after the intervention, players were assessed in vertical and broad jump, change of direction, maximal strength and a 60-m sprint test.
RESULTS: No significant improvements were found in the CG, while the EG improved vertical jump (effect size [ES] = 2.8), broad jump (ES = 2.4), agility T test (ES = 2.2), Illinois agility test (ES = 1.4), maximal strength (ES = 1.8), and 60-m sprint (ES = 1.6) (p < 0.05) after intervention, and the improvements were greater compared to the CG (p < 0.05).
CONCLUSIONS: Plyometric training in addition to regular basketball practice can lead to meaningful improvements in maximal-intensity exercise adaptations among young basketball players during the pre-season.

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