Vol. 3, No 1, 2005 pp. 81 - 90
UDC 796.012
Scientific Paper

THE EFFECTS OF PLYOMETRIC, WEIGHT AND PLYOMETRIC-WEIGHT 
TRAINING ON ANAEROBIC POWER AND MUSCULAR STRENGTH

Rahman Rahimi1, Naser Behpur2
1Department of Physical Education and Sports Science, Kurdistan University, Sanandaj, Iran
E-mail: ra_rahimy@yahoo.com
2Department of Physical Education and Sports Science, Razi University, Kermanshah, Iran

Abstract. The purpose of this study was to compare the effects of 3 different training protocols-plyometric training, weight training, and their combination on the vertical jump performance, anaerobic power and muscular strength. Based on their training, forty-eight male college students were divided into 4 groups: a plyometric training group (n=13), a weight training group (n=11), a plyometric plus weight training group (n=14), and a control group (n=10). The vertical jump, the fifty-yard run and maximal leg strength were measured before and after a six-week training period. Subjects in each of the training groups trained 2 days per week, whereas control subjects did not participate in any training activity. The data was analyzed by a 1-way analysis of variance (repeated-measures design). The results showed that all the training treatments elicited significant (P<0.05) improvement in all of the tested variables. However, the combination training group showed signs of improvement in the vertical jump performance, the 50 yard dash, and leg strength that was significantly greater than the improvement in the other 2 training groups (plyometric training and weight training). This study provides support for the use of a combination of traditional weight training and plyometric drills to improve the vertical jumping ability, explosive performance in general and leg strength.
Key words:  stretch-shortening cycle, power training, explosive performance, plyometric training.

EFEKTI PLIOMETRIJE, SNAGE I PLIOMETRIJSKO-SNAŽNOG
TRENINGA NA ANAEROBNU MOĆ I MIŠIĆNU SNAGU
Cilj ove studije je uporedjivanje tri različita trenažna protokola (pliometrijski trening, trening sa opterećenjem i njihova kombinacija) na vertikalan skok, anaerobnu moć i mišićnu snagu. 48 studenata su podeljeni na četiri grupe: pliometrijski trening (n = 13), trening sa opterećenjem (n = 11), pliometrija plus trening sa opterećenjem (n = 14) i kontrolna (n = 10). Skok uvis, trčanje na 50 jardi i maksimalna snaga nogu su mereni pre i posle 6 nedelja treniranja. Ispitanici u svakoj trenažnoj grupi su trenirali dva puta nedeljno, a ispitanici kontrolne grupe nisu trenirali bilo koju aktivnost. Podaci su analizirani sa jednosmernom analizom varijanse (ponovljeni merni dizajn). Rezultati pokazuju da su svi tretmani delovali statistički značajno (P < 0,05) na sve testirane varijable. Ipak, grupa sa kombinovanim treningom (pliometrijski i snažni trening) pokazuje poboljšanje u skoku uvis, trčanju na 50 jardi i snazi nogu u odnosu na druge dve grupe. Ova studija podržava korišćenje kombinacije tradicionalnog treninga sa opterećenjem i pliometrijskih vežbi za poboljšanje sposobnosti skakanja uvis, eksplozivnosti i snage nogu.
Ključne reči: ciklus kratkotrajnog strecinga, eksplozivnost, trening snage, pliometrijski trening.