Czasopismo
Tytuł artykułu
Warianty tytułu
Języki publikacji
Abstrakty
This study aimed to investigate the kinematic and kinetic changes when resistance is applied in horizontal and vertical directions, produced by using different percentages of body weight, caused by jumping movements during a dynamic warm-up. The group of subjects consisted of 35 voluntary male athletes (19 basketball and 16 volleyball players; age: 23.4 ± 1.4 years, training experience: 9.6 ± 2.7 years; height: 177.2 ± 5.7 cm, body weight: 69.9 ± 6.9 kg) studying Physical Education, who had a jump training background and who were training for 2 hours, on 4 days in a week. A dynamic warm-up protocol containing seven specific resistance movements with specific resistance corresponding to different percentages of body weight (2%, 4%, 6%, 8%, 10%) was applied randomly on non consecutive days. Effects of different warm-up protocols were assessed by pre-/post- exercise changes in jump height in the countermovement jump (CMJ) and the squat jump (SJ) measured using a force platform and changes in hip and knee joint angles at the end of the eccentric phase measured using a video camera. A significant increase in jump height was observed in the dynamic resistance warm-up conducted with different percentages of body weight (p<0.05). On the other hand, no significant difference in different percentages of body weight states was observed (p>0.05). In jump movements before and after the warm-up, while no significant difference between the vertical ground reaction forces applied by athletes was observed (p>0.05), in some cases of resistance, a significant reduction was observed in hip and knee joint angles (p<0.05). The dynamic resistance warmup method was found to cause changes in the kinematics of jumping movements, as well as an increase in jump height values. As a result, dynamic warm-up exercises could be applicable in cases of resistance corresponding to 6-10% of body weight applied in horizontal and vertical directions in order to increase the jump performance acutely.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Numer
Strony
277-282
Opis fizyczny
Daty
wydano
2014
Bibliografia
- 1. Behm DG, Bambury A, Cahill F, Power K, Effect of acute static stretching on force, balance, reaction time, and movement time. Med Sci Sports Exerc. 2004;36:1397-1402.
- 2. Church JB, Wiggins MS, Moode FM, Crist R.Effect of warm-up and flexibility treatments on vertical jump performance. J Strength Cond Res. 2001;15:332- 336.
- 3. Fletcher IM, Jones B.The effect of different warm-up stretch protocols on 20 meter sprint performance in trained rugby union players. J Strength Cond Res. 2004;18:885-888.
- 4. Hamada T, Sale DG, MacDougall JD, Tarnopolsky MA. Postactivation potentiation, fiber type, and twitch contraction time in human knee extensor muscles. J Appl Physiol. 2000;88:2131- 2137.
- 5. Little T, Williams AG. Effects of differential stretching protocols during warm-ups on high-speed motor capacities in professional soccer players. J Strength Cond Res. 2006;20:203-207.
- 6. Burkett LN, Phillips WT, Ziuraitis JThe best warm-up for the vertical jump in college-age athletic men. J Strength Cond Res. 2005;19:673-676.
- 7. Faigenbaum AD, McFarland JE, Schwerdtman JA, Ratamess NA, Kang J, Hoffman JR. Dynamic warm-up protocols, with and without a weighted vest, and fitness performance in high school female athletes. J Athl Train. 2006;41:357-363.
- 8. Gelen E.Acute effects of different warm-up methods on sprint, slalom dribbling, and penalty kick performance in soccer players. J Strength Cond Res. 2010;24:950-956.
- 9. Tahayori B.Effects of exercising with a weighted vest on the output of lower limb joints in countermovement jump (master’s dissertation). The Department of Kinesiology. Louisiana State University; 2009. P. 41.
- 10. Thacker SB, Gilchrist J, Stroup DF, Kimsey CD. The impact of stretching on sports injury risk: A systematic review of the literature. Med Sci Sports Exerc. 2004;36:371-378.
- 11. Thompsen AG, Kackley T, Palumbo MA, Faigenbaum AD. Acute effects of different warm-up protocols with and without a weighted vest on jumping performance in athletic women. J Strength Cond Res. 2007;21:52-56.
- 12. Sale DG. Postactivation potentiation: Role in human performance. Exerc Sport Sci Rev. 2002;30:138-143.
- 13. Gossen ER, Sale DG. Effect of postactivation potentiation on dynamic knee extension performance. Eur J Appl Physiol. 2000;83:524-530.
- 14. Young WB, Jenner A, Griffiths K.Acute enhancement of power performance from heavy load squats. J Strength Cond Res. 1998;12:82-84.
- 15. Guillich A, Schmidtbleicher D.MVC-Induced short-term potentiation of explosive force. New Stud. Athletics1996;11:67-81.
- 16. Gourgoulis V, Aggeloussis N, Kasimatis P, Mavromatis G, Garas A.Effect of a submaximal half-squats warm-up program on vertical jumping ability. J Strength Cond Res. 2003;17:342-344.
- 17. Chattong C, Brown LE, Coburn JW, Noffal GJ Effect of a dynamic loaded warm-up on vertical jump performance. J Strength Cond Res. 2010;24:1751- 1754.
- 18. Reiman MP, Peintner AM, Boehner AL, Cameron CN, Murphy JR, Carter JW. Effects of Dynamic Warm-up with and without a Weighted Vest on Lower Extremity Power Performance of High School Male Athletes. J Strength Cond Res. 2010;24:3387-3395.
Typ dokumentu
article
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.psjd-0860-021X-2014-31-4-473