Effects of Reverse Nordic Exercise on Physical Fitness in Youth Karate Athletes
Author Information
Author(s): Raja Bouguezzi, Senda Sammoud, Yassine Negra, Younés Hachana, Helmi Chaabene
Primary Institution: Otto von Guericke University, Magdeburg
Hypothesis
An 8-week intervention using the reverse Nordic exercise would improve measures of physical fitness and reduce asymmetry scores in youth karate athletes.
Conclusion
RNE training significantly enhances various physical fitness measures in youth karate athletes and reduces lower-limb asymmetry scores.
Supporting Evidence
- RNE training led to significant improvements in sprint speed, CoD speed, CMJ height, and SLJ distance.
- All participants in the RNE group improved their 10 m sprint performance beyond the smallest worthwhile change threshold.
- The RNE group showed a moderate decrease in lower-limb asymmetry scores.
- No significant changes were observed in the control group across all fitness measures.
- RNE training is easy to incorporate into regular karate training.
Takeaway
Doing a special exercise called reverse Nordic can help young karate athletes get faster and jump higher.
Methodology
Twenty-seven youth karate athletes were divided into an RNE group and a control group, with various physical fitness tests conducted before and after an 8-week training program.
Potential Biases
Quasi-randomization may lead to selection bias.
Limitations
The study used field tests without physiological measures and employed a quasi-randomization process, which may introduce selection bias.
Participant Demographics
Participants were youth karate athletes aged around 15 years, with a mix of males and females.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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