Sequencing Effects of Concurrent Resistance and Short Sprint Interval Training on Physical Fitness, and Aerobic and Anaerobic Performance of Karate Athletes.
Study Goal
The researchers aimed to evaluate the effects of combining short sprint interval training (sSIT) and resistance training (RT) in different sequences on physical fitness, aerobic capacity, and anaerobic performance in male karate athletes.
Results Summary
The study found that sSIT, RT, and their combination (in either sequence) improved physical fitness, aerobic capacity, and anaerobic performance, with combined training showing greater adaptations. No sequencing effects were observed between the combined training groups.
Population
National-level young male karate athletes (n=40, divided into five groups of eight).
Effective Dosage
sSIT: 4 sets of 5 repetitions of 5-second all-out running; RT: 3 sets of 6-12 repetition maximum for exercises like back squats and leg presses, performed 3 days weekly.
Duration
8 weeks
Interactions
None mentioned
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | increase | countermovement vertical jump (CMVJ) | male karate athletes | effect size (ES) = 1.58, 1.55 | demonstrated improvements | #1 |
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | decrease | 20-m sprint | male karate athletes | effect size (ES) = -1.10, -1.16 | demonstrated improvements | #2 |
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | decrease | 4 × 9-m shuttle run | male karate athletes | effect size (ES) = -1.15, -0.89 | demonstrated improvements | #3 |
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | increase | strength | male karate athletes | effect size (ES) = 0.34, 0.43 | demonstrated improvements | #4 |
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | increase | peak power output | male karate athletes | effect size (ES) = 1.80, 1.53 | demonstrated improvements | #5 |
8-week concurrent training (CT) program combining short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (sSIT + RT or RT + sSIT) | increase | mean power output | male karate athletes | effect size (ES) = 1.37, 1.11 | demonstrated improvements | #6 |
short sprint interval training (sSIT) | increase | countermovement vertical jump (CMVJ) | male karate athletes | effect size (ES) = 0.64 | demonstrated improvements | #7 |
short sprint interval training (sSIT) | decrease | 20-m sprint | male karate athletes | effect size (ES) = -0.82 | demonstrated improvements | #8 |
short sprint interval training (sSIT) | decrease | 4 × 9-m shuttle run | male karate athletes | effect size (ES) = -0.62 | demonstrated improvements | #9 |
short sprint interval training (sSIT) | increase | strength | male karate athletes | effect size (ES) = 0.19 | demonstrated improvements | #10 |
short sprint interval training (sSIT) | increase | peak power output | male karate athletes | effect size (ES) = 1.27 | demonstrated improvements | #11 |
short sprint interval training (sSIT) | increase | mean power output | male karate athletes | effect size (ES) = 0.87 | demonstrated improvements | #12 |
resistance training (RT) | increase | countermovement vertical jump (CMVJ) | male karate athletes | effect size (ES) = 0.88 | demonstrated improvements | #13 |
resistance training (RT) | decrease | 20-m sprint | male karate athletes | effect size (ES) = -0.62 | demonstrated improvements | #14 |
resistance training (RT) | decrease | 4 × 9-m shuttle run | male karate athletes | effect size (ES) = -0.35 | demonstrated improvements | #15 |
resistance training (RT) | increase | strength | male karate athletes | effect size (ES) = 0.44 | demonstrated improvements | #16 |
resistance training (RT) | increase | peak power output | male karate athletes | effect size (ES) = 0.73 | demonstrated improvements | #17 |
resistance training (RT) | increase | mean power output | male karate athletes | effect size (ES) = 0.54 | demonstrated improvements | #18 |
short sprint interval training (sSIT) | increase | aerobic performance | male karate athletes | effect size (ES) = 0.75 | improvements were observed | #19 |
concurrent training (CT) program (sSIT + RT) | increase | aerobic performance | male karate athletes | effect size (ES) = 0.92 | improvements were observed | #20 |
concurrent training (CT) program (RT + sSIT) | increase | aerobic performance | male karate athletes | effect size (ES) = 0.62 | improvements were observed | #21 |
resistance training (RT) | no change | aerobic performance | male karate athletes | - | did not show significant changes | #22 |
concurrent training (CT) program (sSIT + RT) | no change | adaptations of variables | male karate athletes | - | no sequencing effects were observed | #23 |
concurrent training (CT) program (RT + sSIT) | no change | adaptations of variables | male karate athletes | - | no sequencing effects were observed | #24 |
This study aimed to evaluate the effects of an 8-week concurrent training (CT) program that combined short sprint interval training (sSIT) and resistance training (RT) in alternating sequences (i.e., sSIT + RT or RT + sSIT) on the physical fitness, aerobic capacity, and anaerobic performance of male karate athletes, in comparison to each training intervention conducted independently. Forty national-level young male athletes volunteered to participate in this study and were divided into sSIT, RT, sSIT + RT, RT + sSIT, and active control (CG) groups, each group consisted of eight athletes and performed 3 days of weekly training intervention including 4 sets of 5 repetitions of 5 seconds of all-out running for sSIT program and also back squats, leg presses, seated knee flexions, and calf raises for 3 sets of 6-12 repetition maximum for the RT intervention. After the intervention, the sSIT, RT, sSIT + RT and RT + sSIT groups demonstrated improvements in the countermovement vertical jump (CMVJ) (effect size [ES] = 0.64, 0.88, 1.58, 1.55), 20-m sprint (ES = -0.82, -0.62, -1.10, -1.16), 4 × 9-m shuttle run (ES = -0.62, -0.35, -1.15, -0.89), strength (ES = 0.19, 0.44, 0.34, 0.43), peak (ES = 1.27, 0.73, 1.80, 1.53), and mean power output (ES = 0.87, 0.54, 1.37, 1.11), as well as in comparison to the CG (p < 0.05), respectively. Additionally, improvements in aerobic performance were observed in the sSIT, sSIT + RT, and RT + sSIT groups (ES = 0.75, 0.92, 0.62) after the training intervention, and in comparison to CG (p < 0.05), while the RT group did not show significant changes post-training. By comparing the CT groups, no sequencing effects were observed in the adaptations of variables between the sSIT + RT vs. RT + sSIT groups. In conclusion, this study's findings demonstrate that sSIT, RT, and CT with different orders have a positive impact on inducing adaptations in physical fitness, aerobic and anaerobic performance. Additionally, combining sSIT and RT resulted in further adaptations in karate athletes without any differences between CT groups.