TY - JOUR
T1 - Contrast loading increases upper body power output in junior volleyball athletes
AU - Smilios, Ilias
AU - Sotiropoulos, Konstantinos
AU - Barzouka, Karolina
AU - Christou, Marios
AU - Tokmakidis, Savvas P.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Purpose: This study examined the acute effects of contrast loading on mechanical power output during benchpress throws in junior volleyball players. Method: Eleven males (age: 16.5 ± 0.5 years) performed a contrast loading and a control protocol. The contrast protocol included the execution of 3 bench-throws with a 30% load of 1RM, after 3 min a conditioning set of 5 bench-throws with a 60% load of 1RM and after 3 and 5 min two more sets of 3 bench-throws with a 30% load of 1RM. The control protocol included the execution of 3 sets of 3 bench-throws with a 30% load of 1RM at the same time points as in the contrast protocol without the execution of the conditioning set. Results: Mechanical power with a 30% load was higher (p < .05) 3 and 5 min following the conditioning set at the contrast protocol compared with the control protocol (8.7 ± 7.5 and 10.4 ± 3.4%, respectively). High correlations (p < .05) were obtained between participant's relative maximal strength (r = .87) and power (r = .82) and the increases in power output. Conclusion: Contrast loading increases upper body power output produced with a light load by junior athletes. The potential for increased upper body performance is more evident in stronger or more powerful individuals.
AB - Purpose: This study examined the acute effects of contrast loading on mechanical power output during benchpress throws in junior volleyball players. Method: Eleven males (age: 16.5 ± 0.5 years) performed a contrast loading and a control protocol. The contrast protocol included the execution of 3 bench-throws with a 30% load of 1RM, after 3 min a conditioning set of 5 bench-throws with a 60% load of 1RM and after 3 and 5 min two more sets of 3 bench-throws with a 30% load of 1RM. The control protocol included the execution of 3 sets of 3 bench-throws with a 30% load of 1RM at the same time points as in the contrast protocol without the execution of the conditioning set. Results: Mechanical power with a 30% load was higher (p < .05) 3 and 5 min following the conditioning set at the contrast protocol compared with the control protocol (8.7 ± 7.5 and 10.4 ± 3.4%, respectively). High correlations (p < .05) were obtained between participant's relative maximal strength (r = .87) and power (r = .82) and the increases in power output. Conclusion: Contrast loading increases upper body power output produced with a light load by junior athletes. The potential for increased upper body performance is more evident in stronger or more powerful individuals.
KW - Bench press
KW - Muscular performance
KW - Post activation potentiation
UR - http://www.scopus.com/inward/record.url?scp=85016276857&partnerID=8YFLogxK
U2 - 10.1123/pes.2016-0095
DO - 10.1123/pes.2016-0095
M3 - Article
AN - SCOPUS:85016276857
SN - 0899-8493
VL - 29
SP - 103
EP - 108
JO - Pediatric Exercise Science
JF - Pediatric Exercise Science
IS - 1
ER -