Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
©Journal of Sports Science and Medicine (2024) 23, 219 - 227   DOI:

Research article
Supervised Offseason Training Programs are able to mitigate the Effects of Detraining in Youth Men Soccer Players Physical Fitness: A Randomized Parallel Controlled Study
GuiYang Liu1, XiaoShuang Wang2, , Qi Xu3
Author Information
1 Physical Education and Health Education, Udon Thani Rajabhat University 64 Thaharn Road, Muang, Udon Thani 41000, Thailand
2 College of Physical Education, Chizhou University, Chizhou 247000, Anhui, China
3 Gdansk University of Physical Education and Sport, 80-336 Gdańsk, Poland

XiaoShuang Wang
✉ College of Physical Education, Chizhou University, Chizhou 247000, Anhui, China
Publish Date
Received: 05-02-2024
Accepted: 18-02-2024
Published (online): 01-03-2024

This study aimed to analyze the effects of three off-season training programs on the aerobic capacity, countermovement jump (CMJ), and linear sprint performance of young male soccer players. The study employed a randomized multi-arm design, consisting of three experimental groups: i) a high-intensity interval training (HIIT) group; (ii) a plyometric jump training (PJT) group; and (iii) a HIIT+PJT group; and an inactive control group. Fifty-eight under-19 male soccer players (aged 17.6 ±0.6 years) were randomly assigned to participate in a 3-week offseason training program exclusively performing HIIT, PJT, or a combination of both, while the fourth group remained inactive. Players underwent assessments twice, using the Yo-Yo Intermittent Recovery Test – Level 1 (YYIRT), CMJ, and 30-meter linear sprint. Significant interactions between time and groups were found in CMJ (p<0.001), YYIRT (p<0.001), and 30-m sprint (p<0.001). Group*time interaction revealed that the control group was significantly different from HIIT (p<0.001), PJT (p<0.001), and HIIT+PJT (p<0.001) considering the CMJ. Moreover, the control group was significantly different from HIIT (p=0.037) in YYIRT. Finally, the control group was significantly different from HIIT (p=0.024), PJT (p<0.001), and HIIT+PJT (p=0.021) considering the 30-m sprint. In conclusion, off-season training programs are effective in significantly reducing declines in CMJ and sprint performance compared to maintaining training cessation. However, in the YYIRT, only HIIT seems to be significantly superior to maintaining inactivity. To mitigate aerobic performance declines, incorporating HIIT sessions twice weekly during the offseason is advisable. To enhance or maintain jump performance, integrating at least one session of PJT weekly is beneficial.

Key words: Football, detraining, physical exercise, physical fitness, aerobic exercise, resistance training

           Key Points
  • Offseason training programs incorporating high-intensity interval training (HIIT), plyometric jump training (PJT), or a combination of both have proven effective in mitigating the decline observed in soccer training cessation when compared to inactive control groups.
  • Maintenance of aerobic performance was achievable only through twice-weekly sessions of HIIT.
  • Sprint performance experienced significant declines irrespective of enrollment in these training programs, although the control group exhibited significantly greater impacts.
  • Enhancement of countermovement jump ability can be achieved with two sessions of PJT, or maintained with two sessions of HIIT, or a combination of one session of HIIT and one of PJT.
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