The effects of single versus multiple training sessions on the motor learning of two Krav Maga strike techniques, in women

Abstract

Background Experts of the Krav Maga (KM) self-defense system propose that KM techniques are based on simple body movements which are suggested to be learned rapidly and retained. This study investigated the acquisition, retention, and further improvement with additional training of two KM strike techniques among novice female practitioners: straight punch and defensive kick. Methods Sixteen healthy females (age: 23 ± 3.7 years) without any previous martial arts/self-defense experience volunteered to participate. All participants received an initial 30-min instruction session (AQ), taught by a certified KM instructor, where each technique was deconstructed into three checkpoints (defined as a component of the entire movement) for learning. Participants were divided into two groups, one of which received additional training. Several kinematic and kinetic measures were recorded at four timepoints: immediately before AQ, immediately after AQ, 5 days after AQ, and 12 days after AQ. Results Results suggest that both techniques were learned rapidly, as checkpoint performance was significantly improved after AQ. Kick velocity and impact force also increased significantly after AQ; however, these measures did not change after AQ for the punch technique. Additional training did not improve either punch or kick performance beyond that learned during AQ. Conclusion The findings from this study suggest that a single training session may be sufficient to learn and retain KM strike techniques relatively permanently; and the acquisition of the kick technique may lead to concomitant improvements in kick velocity and impact force.

Punch Trackers: Correct Recognition Depends on Punch Type and Training Experience

“…Contrary to the negative effect of the order of punches within a sequence, as each round of shadow boxing progressed (i.e., after multiple sequences), the CPT and HPT better recognized punch types in both TR and UNTR participants. It is possible that there was a learning effect, which has previously been shown to increase punch force and velocity after only 15 min of practice [ 17 ], but such rapid skill acquisition would have likely occurred only in UNTR. Nevertheless, the present data do not allow for such a conclusion, and the most logical explanation for the increased recognition over time is the pyramid nature of the protocol.…”

Efeitos do treinamento físico de Krav Maga na composição corporal, aptidão física e força muscular

“…In addition to the FS levels, in the G V , higher levels of strength resistance of the upper limbs were also verified in the arm and abdominal flexion test, Di Bacco et al [13] corroborate these findings, when they evidenced the development of upper limb strength with the specific training of Jiu Jitsu, a modality analogous to Krav Maga. Thus, it can be inferred that strength training is essential for the F/MA/CSM.…”

“…Although its practice is currently growing, scientific knowledge about the physical effects produced by this bodily practice is still limited, not following its rise. With a view to finding publications on physical training methods and the physiological effects produced by their practice, Andrade Neto et al [12] carried out a literature review on the production related to the topic between the years 1998 and 2018, finding only 7 scientific articles on this topic [12,13].…”

Impact Force and Velocities for Kicking Strikes in Combat Sports: A Literature Review

“…In contrast, push kicks appear to modulate impact forces by increasing the body mass involved in the strike, with multiple investigations correlating body mass with impact force [ 11 , 110 , 112 ]. Since involving more mass in strikes is simpler than enhancing technical skill, push-style kicks have demonstrated improved impact force in untrained participants following a single instructional session [ 84 ]. A similar pattern of increasing body mass involved in a strike to improve impact force has been suggested in throw-style kicks.…”

“…Where an error bar is absent, only a maximum impact force value was reported. Where only N/KG was reported, an average participant weight of 75 kg [ 121 ] was used to calculate impact force [ 11 , 13 , 22 , 24 , 27 , 30 , 44 , 48 , 49 , 51 , 52 , 54 , 55 , 56 , 66 , 67 , 72 , 81 , 82 , 84 , 88 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 ].…”