Document Type : Original Article
Authors
1
Assistant Professor (Corresponding author), the Public Authority for Applied Education and Training, College of Basic Education, Department of Physical Education and Sport, State of Kuwait
2
Professor, University of Utah, Department of Exercise and Sport Science, United State of America.
3
Assistant Professor, Helwan University, Department of Sport Training, Egypt
Abstract
The primary purpose of the current study is to investigate the relationship among core stability, selected physical performance measures and spiked ball velocity. Sixteen Division I male volleyball players who were members of the Alyarmouk Sporting Club in the state of Kuwait were recruited as volunteers. Their descriptive characteristics were (mean ± SD): age = 22.66 ± 5.5 years, height = 182 ± 4.68 cm, Weight = 76.33 ± 9.75 kg, body mass Index = 22.70 ± 2.71 kg, and body fat percent = 12.15 ± 2.91%. all players underwent determination of anthropometric measurements, core stability tests, sit-ups, push-ups, and counter movement vertical jump (CMVJ) test, a double-arm medicine ball throw, a single-arm medicine ball throw, 5-m, 10-m, and 20-m sprint tests, along with spiked ball velocity (SBV) with the coach toss and spiked ball velocity (SBV) with a SPIKE IT®. The result indicated that there was a statistical significant positive relationships between SBV with the coach toss and total core (TC) (r = .77), trunk flexion (r = .55), trunk extension (r = .74), left extension (r =.58), and right extension (r = .62). The countermovement vertical jump (CMVJ) also indicated a significant positive relationship with trunk flexion (r = .47). Additionally, statistically significant and positive relationships were also identified between SBV with the coach toss and the single-arm medicine ball throw (r = .81). In conclusion: the results of this study suggest that core stability is moderately related to sport performance. Thus, coaches and personal trainers should not focus only on training the core separately and neglecting the other parts of the body. Neglecting the other body areas could lead to a muscle imbalance and possible injury.
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