The aim of this study was to analyze the effect of circuit body weight training on weight loss and Kizami - Gyaku Zuki's punching skills. The sample of 21 karate athletes aged 17 – 20 years consisted of men: -60 kg, -67 kg, -75 kg, -84 kg, height 167 – 178 cm; and women: -50 kg, -55 kg, -61 kg, height 162 – 170 cm. The body weights in this study were adjusted to the 2024 World Karate Federation (WKF) regulations. However, not all samples could fill all weight classes according to the WKF regulations. The training program is carried out for 4 weeks or 12 meetings, with 3 meetings in one week. This exercise is carried out with an intensity of 50 – 70%, number of sets 3 – 5 sets, number of repetitions 14 – 18 times, recovery between posts is 20 seconds, recovery between sets 120 – 180 seconds. The results of this research are that circuit body weight training has an effect on weight loss and kizami - gyaku zuki punches (sig. 0.000 < 0.05). Then the product moment correlation shows a strong relationship, with a sig value. 0.017 (r = -626) means that the more the athlete's weight increases, the kizami – gyaku zuki punching skill decreases. Variables in body weight and kizami - gyaku zuki skills are very important for a fighting athlete, especially kumite, to be able to compete in the specified class. This research can be recommended for athletes who have a short general preparation period, because this program is only carried out for 4 weeks with 3 meetings in one week.

Introduction: Blood flow restriction (BFR) combined with resistance training can promote hypertrophy, enhance muscle activation, and improve function. Muscle electromyography (EMG) is commonly used to elucidate neuromuscular recruitment and highlight adaptive changes in recruitment due to BFR. Purpose: This study used electromyography (EMG) to determine the influence of BFR on lower-extremity (LE) neuromuscular activation timing during resistive sled training. Methods: Sixty-two participants were recruited (eight males and 54 females; mean age, 23 years). EMG) electrodes were placed on the belly of selected muscles of the dominant LE to record muscle activation. Participants pushed an XPO sled trainer at slow (60 bpm) and fast (140 bpm) walking speed protocols (three trials each) with and without the application of BFR to the LE for a total of 12 trials. The EMG variables assessed were time to peak, decay, and duration of muscle activation. Results: The outcomes revealed several adaptations in EMG variables for functionally activated muscles above and below the cuff when pushing a sled while using BFR. Conclusions & Clinical Relevance: Several tendencies have been identified in the gastrocnemius, tibialis anterior, and hip extensors depending on walking speed, which may be foundational to future research and should be explored further. Our results suggest that low-load BFR can benefit patients with leg musculature weakness, extensor musculature fatigue, and proximal thigh musculature rehabilitation.

Today the sporting world has become extremely competitive. Every person who indulges in training for a sport will not necessarily achieve the top performance or become a champion. It is rightly said that the champions in the field of sports are born and then groomed in later life. Thus, the genetic endowment of a sports person cannot be neglected while selecting a talent. This paper shows the clear outline and nutshell of how the explosive training will support the Tribal Volleyball players' active participation. It is an empirical study to get an idea of the effect of explosive training.