Univerza na Primorskem Univerzitetna knjižnica - vsi oddelki (UPUK)
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Are acute effects of maximal dynamic contractions on upper-body ballistic performance load specific?Marković, Goran, 1975- ; Šimek, Sanja ; Bradić, AsimThis study investigated the acute effects of upper-body maximal dynamic contractions on maximal throwing speed with 0.55- and 4-kg medicine balls. It was hypothesized that heavy preloading would ... transiently improve throwing performance only when overcoming the heavier of the two loads. Twenty-three male volunteers were randomly allocated into experimental (n = 11) and control (n = 12) groups. Both groups performed initial and final seated medicine ball throws from the chest, and the maximal medicine ball speed was measured by means of a radar gun. Between the two measurements, the control group rested passively for 15 minutes, and the experimental group performed three sets of three-repetition maximum bench presses. For the 0.55-kg load, a 2 % 2 repeated-measures analysis of variance revealed no significant effect of time % group interaction (p = 0.22), as well as no significant time (p = 0.22) or group (p = 0.72) effects. In contrast, for the 4-kg load, a significant time % group interaction (p = 0.004) and a significant time (p = 0.035) but not group (p = 0.77) effect were observed. Analysis of simple main effects revealed that the experimental group significantly (8.3%; p < 0.01) improved maximal throwing speed with the 4-kg load. These results support our research hypothesis and suggest that the acute effects of heavy preloading on upper-body ballistic performance might be load specific. In a practical sense, our findings suggest that the use of upper-body heavy resistance exercise before ballistic throwing movements against moderate external loads might be an efficient training strategy for improving an athlete's upper-body explosive performance.Vir: Journal of strength and conditioning research. - ISSN 1064-8011 (Vol. 22, iss. 6, Nov. 2008, str. 1811-1815)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2008Jezik - angleškiCOBISS.SI-ID - 1541882052
Avtor
Marković, Goran, 1975- |
Šimek, Sanja |
Bradić, Asim
Teme
complex training |
postactivation |
potentiation |
muscle power |
throwing |
trening |
mišice |
moč |
mišična jakost |
gibanje
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vir: Journal of strength and conditioning research. - ISSN 1064-8011 (Vol. 22, iss. 6, Nov. 2008, str. 1811-1815)
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Marković, Goran, 1975- | 53981 |
Šimek, Sanja | ![]() |
Bradić, Asim | ![]() |
Vir: Osebne bibliografije
in: SICRIS
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