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UPSI Digital Repository (UDRep)
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| Abstract : Universiti Pendidikan Sultan Idris |
| The purpose of this study was to investigate the effect of three different resistance levels of
using rubber bands during a warm up protocol on vertical jump performance. Quasi experimental
design was used in this study. Seventeen recreationally active males aged between 20 to 25 years
old were randomly selected. The participants underwent four sessions consisted of (a)
familiarization warm up, (b) warm up with orange color rubber band (high level of resistance), (c)
warm up with blue color rubber band (medium level of resistance) and (d) warm up with green color
rubber band (lower level of resistance). At the end of every session, the participants performed
the squat jump on the force plate. The data on force, pqwer and height of jump were collected and
analyzed. Repeated Measure One way ANOVA was utilized for data analysis. The force result
indicated that the mean force
(N) obtained for blue rubber band (M = 1532; ±SD = 251) was higher than green (M = 1507; ±SD= 268)
and orange rubber band (M = 1511; ±SD= 264). In term of power (W), the mean power achieved for
orange rubber band (M = 3384; ±SD = 459) was higher than green (M = 3296; ±SD= 444) and blue rubber
band (M = 3256; ±SD= 455). Next, height of jump (cm), the mean height of jump for blue (M = 37.86;
±SD= 4.87) was higher than green (M = 36.34; ±SD=5.59) and orange rubber band (M = 36.59; ±SD=
5.49). However, ANOVA result indicated no significant difference between the different colors
(difficulty levels) of rubber bands used on force [F(2,14) = 0.544; p>0.05]. There were also no
significant differences found between the levels of resistance on the power [F(2,14) =
3.656; p>0.05] and height of jump [F(2, 14) = 0.988; p>0.05]. In conclusion, the data revealed that
the highest power was recorded when the highest resistance was applied in warm up. But in term of
force and jump height, moderate resistance will produce the optimal force and height jump. In
implication, the moderate and high resistant rubber bands
could be used to improve vertical jump performance.
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