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SPRİNTER VE ATLAYICILARIIM HAMSTRING/QUADRICEPS KUWET ORANLARININ DÜZELTİLMESİNDE İZOMETRİK EGZERSİZİN ETKİLERİ

Journal Name:

  • Hacettepe Üniversitesi Spor Bilimleri Dergisi

Publication Year:

  • 1993
Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The purpose of this study was to evaluate and try to improve the low H/Q ratios of eleven elite male sprinters and jumpers at the preparatory season. Cybex 11-340 isokinetic dynamometer was used for evaluating H/Q ratios at 60-180-300°/sec, and da¬vid's Rehab-Trainer exercise system was used for practising isometric program. Subjects with low H/Q ratios were practised isometrically for 5 weeks (2 sessions per week) while they were continuing their routinge training program. Five subjects with low H/Q ratios in 60°/sec were in the experimental group and five subjects with normal ratios were in the control. Additionally, left leg of one subject with low H/Q peak-torque ratio in 60°/sec was in the experimental group and right leg with normal ratio was in the control. Average H/Q peak-torque ratio of this group increased from 58.4 % to 64.0 % at 60°/sec 5p<0.05). However, at higher velocities no significant effect of this isometric exercise program was observed. Meanwhile, subject in the control group, perorming only their routine training program, hak decreases in their H/Q ratios at 60°/sec. Therefore, it has been concluded that adequate emphasis is not given for hamstring strengthening in sprinters and jumpers, so that H/Q ratios tend to decrease to a limit that may cause an injury.
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Abstract (Original Language): 
Hazırlık periyodu antrenmanlarına devam etmekte olan 11 elit, erkek sprinter ve atlayıcı atletin hamstring/quadriceps peak-torque* (H/Q Pt) ve güç (H/Q ap) oranlarını değerlendirip, bu konudaki dengesizlikleri giderebilmek amacıyla, Cybex 11-340 izo-kinetik dinamometre ile 60-180-300°/sn'lik açısal hızlarda testlemeler yapılmıştır. H/Q pt oranları 60°/sn için düşük olan 5 sporcu deney grubunda, normal sınırlarda olan 5 sporcu ise kontrol grubunda yer almıştır. Bir sporcunun H/Q oranı normalin altında olan sol bacağı deney grubunda yer alırken normal düzeyde olan sağ bacağı ise kontrol grubunda değerlendirilmiştir. Deney grubunda ki sporcular rutin antrenmanlarına devam ederlerken, aynı zamanda David's Rehab-Trainer sisteminde 5 hafta süren, toplam 100 seanstık ek bir izometrik egzersiz programı uygulanmıştır. Deney grubunun H/O pt oranları 60°sn'de, % 58.4'ten % 64.0'e yükselmiştir (p<0.05). Fakat, bu programın yüksek açısal hızlarda ne kuvvet ne de güç değerlerine anlamlı bir etkisi görülmemiştir. Bu arada, sadece rutin antrenmanlarına devam etmekte olan kontrol grubunun H/Q pt oranları 60°/sn'de düşmüştür. Bundan dolayı, sprinter ve atlayıcıların antrenmanlarında hamstring kuvveti gelişimine gerekli önemin verilmverilmediği, bunun sonucnuda da H/Q oranlarının gittikçe düşerek bir yaralanma faktörü haline gelebileceği sonucuna varılmıştır.
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REFERENCES

References: 

1-Alexander MJ L: Peak-torque values for antogonist muscle groups and concentric and eccentric contraction types for elite sprinters. Arch Ply Rehabil 71: 334-339, 1990.
2-Ariel G B, Saar D, Wolf S I, Penny M A: The effect of electrical stimulation with feed-back controlled resistive training on athletic performance. Med Sci Sports Exerc 16 (2): 166,1984.
3-Armstrong R B: Initial events in exercise-induced muscular injury. Med Sci Sports exerc 22(4): 429-435, 1984.4-Baker B e: Current concepts in the diagnosis and treatment of musculotendinous injuries. Med Sci Sports Exerc 16 (4): 323-327, 1984.
5-Ballesteros
J
M:
NS
A Round-Table 16- injury prevention and rehabilitation. New Studies in athletics 7(2): 17-26, 1992.
6-
Burket
t L N: Causative factors in hamstring strains. Med Sci Sports exerc 14:176,1982.
7-
Caiozz
o V J, Perrine J J, Edgerton V R: Training-induced alterations of in-vivo force-velocity relationship of human muscle. J Appl Physiol 51: 750-754,1981.
8-
Cambe
l D E, Gleen W: Rehabilitation of knee flexor and extansor muscle strengeth in pa¬, tients with menisectomies, ligamentous repairs, and chondromalacia. Physical Theraphy 62:10¬15, 1982.
9-
Currie
r D P, Mann R: Muscular sterngth development by electrical stimulation in healthy individuals. Physical Theraphy 63: 915-921, 1983.
10-
Cybex-
A division of Lumex inc: Isolated joint Testing and exercise, a handbook for using Cybex II and UBXT 1990.
11-
Davie
s G J, Kirkendall D T, Leigh D H- Lui M L, Reinbold T R, Wilson P K: Isokinetic characteristics of professional football players: normative relationships between quadriceps and
31
Spor Bilimleri Dergisi
hamstring muscle groups and relative to body weight. Med Sci Sports Exerc 13: 76, 1981.
12-
Duchatea
u j, Hainaut K: Training effects of submaximal electrostimulation in a human muscle. Med Sci Sports exerc 20 (1): 99-104- 1988.
13-
eriksso
n e. Haagmark T, Hiesling K H, Karlsson J: Effect of electrical stimulation on human skeletal muscle. Int. J Sports Med 2:18-22, 1981.
14-
ewin
g J L, Wolf D, Rogers M A, Amundson M L, Stull G A: Effects of veloctiy of isokinetic training on strength, power, and quadriceps muscle fibre characteristics, eur J of Appl Physiol 61:169-162, 1990.
15-
Fahe
y D T, Harvey M, Schroeder R V, Ferguson F: Influence of sex differences and knee joint position on electrical stimulation-modulated strength increases. Med Sci Spors Exerc 17(1): 144-147, 1985.
16-
Farra
r M, Tporland W: Relationship between isokinetic strength and sprint times in college ae men. J. Sports Med, 27: 368-372, 1987.
17-
Garret
t W E Jr: Muscle strain injuries: clinical and basic aspects. Med Sci Spords Exerc 16(4): 436-443, 1990.
18-
Gillia
m T B, Sandy S P, Freedson P S, Villanicci J: Isokinetic torque levels for high school football players. Arch Phys Med Rehab 60: 110-114, 1979.
19-
Gosli
n B R, Charteris J: Isokinetic dynamometry: normative data for clinical use in lower extremity (knee) cases. Scand J Rehab Med 11:105-109, 1979.
20- Işleğen Ç, Erdinç T, Selamoğlu S, Acarbay Ş, Zeren B, Durusoy F: Elit ve elit olmayan sporcularda, diz ekstansiyon ve fleksiyon kas kuvvetlerinin izokinetjk metod ile değerlendirilmesi. Spor Bilimleri ll'nci ulusal Kongresi Bildirileri, an kara, Hacettepe Üniversitesi, 1992, 116-131.
21-
Kaczkowsk
i W, Montgomery D L, Taylor A W, Klissouras V: The relationship between muscle fiber composition and maximal anaerobic power and capactiy. j Sports Med 22: 407¬413, 1982.
22-
kannu
s P, Jarvinen M: Knee flexor/extansor strength ratio in fallow-up of acute knee distortion injuries. Arch Phys Med Rehab 71:38-42,1990.
23-
Kannu
s P, Jarvinen M: Thigh muscle function after partial tear of medial ligament compartment of knee. Med Sci Sports Exerc 23(1): 4-9,1991.
24-
Knuttge
n H G: Force, work, power, and exercise. Med Sci Sports Exerc 10 (3): 227-229, 1978.
25-
Lakom
y H K A: An ergometer for measuring the power generated during sprinting. The J of Physiol 435:33P, 1984.
26-
McMike
n D F, Todd-Smith M, Thompson C: Strengthening of human quadriceps femoris muscles by cutaneous electrical stimulation. Scand J Rehabil Med 15: 25-28,1983.
27-
Ranki
n J M, Thompson C B: Isokinetic evaluation of quadriceps and hamstring function: Normative data concerning body weiht and sport, athletic Training (Summer): 110-114, 1983.
28-
Ranki
n J M, Thompson C B, Armstrong W: Isokinetic evaluation o men and women in-ter-collagiate athletes. Med Sci Sports Exerc 14(2): ,177, 1982.
29-
Rea
d M T F, Bellamy M J: Comparison of hamstring/quadriceps isokinetic strength ratios and power in tennis, squash and track athletes. Brit J Sp Med 24(3):178-182, 1990
30-
Renstro
m P. Arms S W, Stanwyck T S, Johnson R J, Pope M H: Strain within the anterior crutiate ligament during hamstring and quadriceps activity. The American J of Sports Med 14 (1): 83-87, 1986.
31-
Rochanga
r P, Morvan R, Jan J, Dasonville J, Beillot J: Isokinetic investigation of knee extensors and flexors in young French soccer players, int J of Sports Med 9 (6): 448-450,1983.
32
Spor Bilimleri Dergisi
32- Romero J A, Sanford T L, Schroeder R V, Fahey T D: The effects of electical stimulation of normal quadriceps on strength and girth. Med Sci Sports Exerc, 14 (3): 194-197, 1982.
33- Rozier C K, Elder J D: Prevention of artrophy by isometric exercise of a casted leg. J Sports Med, 19:191-194,1979.
34- Scaramuzza D M, Axtell R, Thiel R: Effect of knee joint allignment on isokinetic torque production during leg extension and flexion exercise Med Sci Spots Exerc 22 (2): S19 (109), 1990.
35- Selkowitz D M: High frequency electrical stimulation in muscle strengthening. The American J of Spots Med 17(1):103-111, 1989.
36- Selkowitz D MO Improvement in isokinetic strength of the quadriceps femoris muscle after training with electro-stimulation. Physical Theraphy 65:186-196,1985.
37- Sisk T D, Stralka S W, Deering M B, Griffin J W: Effect o electrical stimulation on quadriceps strength after reconstructive surgery of the anterior crutiate ligament. The American J of Sports Med 15 (3): 215-220 1987.
38- Stafford MG, Grana WA: Hamstring/quadriceps ratios in college football players: A high velocity evaluation. The American J of Sports Med 12 (3): 209-211.1984
39- Thortensson A, Larson L, Tesh P, Karlsson J: Muscle strength and fiber composition in athletes and sedantery men. Med Sci Sports exerc 9(1): 26-30,1977.
40- Watson AWS: Incidence and nature of sports injuries in Ireland-Analysis of four types of sport. The American J of Sports Med 21 (1): 137-142, 1993.
41- Watson M D, Dimartino P P: incidence of injuries in high school track athletes and its relation to performance ability. The American J of Sports Med 15(3): 251-254, 1987.
42- Wigerstad-Lossing I, Grimby G, johnson T, Morelli B, Peterson L, Renstrom P: Effects of electrical muscle stimulation combined with volentary contractions after knee ligament surgery. Med Sci Sports Exerc 20 (1): 93-98,1988.
43- Wilmore H J: Athletic training and physical fitness. Allpn and Bacon, Boston, 1977.
44- Winter D A, Wells R P, Orr G N: Errors in the use of isokinetic dynomometeres. Eur J Applied Physiol 46: 397-408, 1981.
45- Wolf S L, Ariel G B, Saar D, Penny M A, Railey P: The effect of muscle stimulation during resistive training on performance parameters. The American J of Sports Med 14(1) 18-23, 1986.
46- Wyatt M P, Edwards A M: Comparisons of quadriceps and hamstring torque values during isokinetic exercise, j Orthop Sports Phy Ther3: 48-56, 1981.
47- Yates J W: Speed spesific eccentric training and torque-velocity curve. Med Sci Sports exerc 22 (2): S 9(53), 1990.

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