Effects of 12 weeks combined weight and chain versus combined weight and elastic band variable resistance training on upper and lower body muscular strength and endurance among untrained males in Iran
Several studies have shown a positive association between variable resistance training (VRT) and the improvement of muscular performance. However, the most effective method of VRT to improve muscular performance in untrained individuals remains unclear. The objective of this study was to examine...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | en |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://eprints.unisza.edu.my/7004/1/FH02-FP-20-39717.pdf http://eprints.unisza.edu.my/7004/ |
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| Summary: | Several studies have shown a positive association between variable resistance
training (VRT) and the improvement of muscular performance. However, the
most effective method of VRT to improve muscular performance in untrained
individuals remains unclear. The objective of this study was to examine the
effects of two methods of VRT on maximal muscular strength and endurance
among untrained male adults. Fifty apparently healthy untrained males (age:
21.5 ± 1.95 years) were selected randomly and assigned into three groups:
combined weight and chain (WC), combined weight and elastic band (WE),
and freeweight (CG). All three groups completed 12 weeks of high intensity
resistance training (70-80% of one-repetition maximum) with three sets of 8-
12 repetitions, two times per week. Approximately 65% of the whole resistance
was provided by free-weights and the other 35% of the resistance was provided
by chains and elastic bands for WC and WE groups, respectively. Dependent
variables including maximal muscular strength and endurance using onerepetition maximum and maximum repetitions to muscular fatigue were
measured, respectively, in the pre-test, post-test 1 (week 6) and post-test 2. The
significance level was set at P < 0.05. No differences existed among all groups
at baseline for dependent variables. A mixed model ANOVA with repeated measurements analysis revealed that all groups showed significant
improvements in maximal muscular strength and endurance during and after
the intervention (P = 0.0001). In WE and WC groups, maximal muscular
strength and endurance were significantly greater than CG group during and
after the intervention, and there were no significant differences between WE
and WC groups in the maximal muscular strength and endurance during and
after the intervention. However, the WE group showed an insignificant more
improvement in maximal muscular strength and endurance compared with WC
group after the intervention (chest press strength: 47.94 ± 4.2 vs. 46.76 ± 4.4
kg, squat strength: 85.29 ± 6.5 vs. 80.73 ± 6.4 kg, chest press endurance: 16.94
± 1.24 vs. 15.47 ± 1.58 repetitions, and squat endurance: 17.94 ± 0.74 vs. 16.58
± 1.66 repetitions). The results of this study show that VRT has a significant
better effect than freeweight resistance training to improve upper and lower
body muscular strength and endurance during and after 12 weeks intervention,
in particular, WE training has a slightly better effect than WC training to
improve upper and lower body muscular strength and endurance after 12 weeks
of VRT among untrained male adults in Iran. |
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