*Corresponding author:Rory Brankin, King’s College Hospital, London, UK
Received: October 24, 2018; Published: October 30, 2018
To view the Full Article Peer-reviewed Article PDF
Stretching during warm-up has been widely discussed for exerting a possible influence on performance. Thus, the purpose of this study was to verify the influence of the Proprioceptive Neuromuscular Facilitation (PNF) in the explosive force (EF) and the jump resistance (JR) of athletes. Twelve male volleyball players (21 ± 4 years; 178 ± 0cm; 75.82 ± 11.02kg; 23 ± 2.87kg/m2) underwent two PNF protocols: a) Protocol 1: four repetitions with 5- second maximum voluntary isometric contraction followed by 30 seconds of passive stretching and b) Protocol 2: four repetitions with 5-second maximum voluntary isometric contraction followed by 60 seconds of passive stretching. For the assessment of EF and JR the height of the countermovement vertical jump was considered measured through the Jump System Pro. The Student t test was used to compare the heights of the jumps between pre and post stretching moments for the two analyzed variables. EF (Protocols 1 and 2 t (7) = 1.462, p = 0.261, and t (7) = 1.402, p = 0.302, respectively) and JR (Protocols 1 and 2, t (7) = 1.542, p = 0.242, and t (7) = 0542, p = 0.712, respectively) did not differ significantly (p>0.05) after both stretching protocols. The results of this study show that the stretching protocols used did not acutely affect the performance of EF and JR of volleyball athletes.
Keywords: Stretching; Performance; Athletes; Sport; Volleyball
Bio chemistryUniversity of Texas Medical Branch, USA
Department of Criminal JusticeLiberty University, USA
Department of PsychiatryUniversity of Kentucky, USA
Department of MedicineGally International Biomedical Research & Consulting LLC, USA
Department of Urbanisation and AgriculturalMontreal university, USA
Oral & Maxillofacial PathologyNew York University, USA
Gastroenterology and HepatologyUniversity of Alabama, UK
Department of MedicineUniversities of Bradford, UK
OncologyCirculogene Theranostics, England
Radiation ChemistryNational University of Mexico, USA
Analytical ChemistryWentworth Institute of Technology, USA
Minimally Invasive SurgeryMercer University school of Medicine, USA
Pediatric DentistryUniversity of Athens , Greece
The annual scholar awards from Lupine Publishers honor a selected number Read More...
We know the financial complexity of Individual read more...
The annual scholar awards from Lupine Publishers honor a selected number read more...