Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2024) 23, 822 - 833   DOI: https://doi.org/10.52082/jssm.2024.822

Research article
Effects of Cluster vs. Traditional Sets Complex Training on Physical Performance Adaptations of Trained Male Volleyball Players
Bo Rong1, Chen Xiu2, 
Author Information
1 Central South University of Forestry and Technology, Changsha, Hunan, China
2 School of Athletic Performance, Shanghai University of Sport, Shanghai, China

Chen Xiu
✉ School of Athletic Performance, Shanghai University of Sport, Shanghai, 200438, China
Email: xiuchen0911@163.com
Publish Date
Received: 06-04-2024
Accepted: 22-10-2024
Published (online): 01-12-2024
 
 
ABSTRACT

This study aimed to examine the impact of different set configurations during combination of resistance and plyometric training (complex [COX]) on jumping ability, power output, strength, and hormonal adaptations in young male volleyball players after a 6-week training period. A randomized controlled trial was conducted with twenty-four trained male volleyball players under the age of 19, who were assigned to one of two groups for lower-body COX training: cluster sets (CS-COX: n = 8) or traditional sets (TS-COX: n = 8), with an additional active control group (CON: n = 8). The players underwent evaluations for countermovement vertical jump (CMVJ), spike jump (SPJ), T-test change of direction speed (T-test CODS), one repetition maximum (1RM) in the back squat and leg press, and the Wingate Anaerobic Test before and after the 6-week training intervention (12 sessions in total). Blood samples were also collected before and after training to assess resting testosterone and cortisol responses. Following the training, both the CS-COX and TS-COX groups exhibited significantly greater (p = 0.001) changes than the CON group in the variables, while similar improvements in maximal strength, mean power output, and testosterone adaptations were observed following the training (p < 0.05). Moreover, the CS-COX group demonstrated greater improvements in CMVJ (effect size [ES] = 0.36), SPJ (ES = 0.06), T-test CODS (ES = -0.60), and peak power output (ES = 0.72), along with greater reductions in resting cortisol (ES = -0.30) levels compared to the TS-COX group after the 6-week intervention (p < 0.05). In conclusion, the results indicate that incorporating cluster sets during COX training sessions led to more favorable changes in bio-motor ability, peak power output, and cortisol adaptations, with greater consistency and uniformity in adaptations among the players compared to traditional set configurations.

Key words: Resistance training, plyometric training, explosive power, cluster sets


           Key Points
  • COX training is a suitable training approach for adequately stimulating mechanisms involved in small to large training adaptations in volleyball players’ physical performance.
  • Incorporating cluster sets in COX training is more effective than traditional sets for maximizing physical performance attributes and peak power output, as well as decrements in resting cortisol levels.
  • Both the training approaches result in similar benefits in the maximal strength gains, mean power output and changes in serum testosterone concentrations.
 
 
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