Physiological and Perceived Exertion Responses during International Karate Kumite Competition

Abstract

PurposeInvestigate the physiological responses and rating of perceived exertion (RPE) in elite karate athletes and examine the relationship between a subjective method (Session-RPE) and two objective heart-rate (HR)-based methods to quantify training-load (TL) during international karate competition.MethodsEleven karatekas took part in this study, but only data from seven athletes who completed three matches in an international tournament were used (four men and three women). The duration of combat was 3 min for men and 2 min for women, with 33.6±7.6 min for the first interval period (match 1–2) and 14.5±3.1 min for the second interval period (match 2–3). HR was continuously recorded during each combat. Blood lactate [La-] and (RPE) were measured just before the first match and immediately after each match.ResultsMeans total fights time, HR, %HRmax, [La-], and session-RPE were 4.7±1.6 min, 182±9 bpm, 91±3%, 9.02±2.12 mmol.L-1 and 4.2±1.2, respectively. No significant differences in %HRmax, [La-], and RPE were noticed across combats. Significant correlations were observed between RPE and both resting HR (r=0.60; P=0.004) and mean HR (r=0.64; P=0.02), session-RPE and Banister training-impulse (TRIMP) (r=0.84; P<0.001) and Edwards TL (r=0.77; P<0.01).ConclusionInternational karate competition elicited near-maximal cardiovascular responses and high [La-]. Training should therefore include exercise bouts that sufficiently stimulate the zone between 90 and 100% HRmax. Karate coaches could use the RPE-method to follow competitor's competition loads and consider it in their technical and tactical training.

Tactical and technical performance analysis of the male 65 kg category at the brazilian shotokan karate championship

“…Combat sports are nowadays in the spotlight within the sportive scenario and Karate is one of the most popular disciplines worldwide Chaabène et al 1 , being performed in two different disciplines, named Kata and Kumite 2 . The Kumite is made of explosive, offensive and defensive bouts of short and long periods of time, lasting from 0.3±0.1 to 1.8±0.4 seconds and making a ratio of effort and pause of 2:1 3,4 . Each technical move has its own scoring value, where head kicks and falls followed by an attack are worth three points, trunk kicks and punches in the back including the posterior area of the head are worth two points while both head and trunk punches are given one point each 5 .…”

The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes

“…Karate requires a high level of physical, physiological, complex technical skills, and tactical excellence for success (Tabben et al, 2013). The physiological characteristics of athletes are generally measured by testing their fitness and skill components (Chaabène et al, 2012).…”

“…The physiological characteristics of athletes are generally measured by testing their fitness and skill components (Chaabène et al, 2012). The fitness components usually include aerobic fitness, muscular strength, muscular endurance, flexibility, and speed (Chaabène et al, 2012;Tabben et al, 2013). Modern karate consists of numerous repetitions of high intensity actions per fight lasting 1-3s each, separated by low-intensity hopping-stepping movements (18±6 s,) and short referees breaks (9±6 s) (Tabben et al, 2013).…”

“…The fitness components usually include aerobic fitness, muscular strength, muscular endurance, flexibility, and speed (Chaabène et al, 2012;Tabben et al, 2013). Modern karate consists of numerous repetitions of high intensity actions per fight lasting 1-3s each, separated by low-intensity hopping-stepping movements (18±6 s,) and short referees breaks (9±6 s) (Tabben et al, 2013).The current study examined whether 2 mg/kg and 5 mg/kg caffeine ingestion would improve performance, rating of perceived exertion, and pain perception in female teenager athletes of karate compared to the placebo. …”

The The Effects of Cold Water Immersion on Anaerobic Power, Dynamic Balance and Muscle Activation After a karate kumite fighting in Female Karateka

“…Fighting consists of numerous repetitions of kick and punch and has an activity pattern comparable to high intensity interval training [1,4]. The recovery period between matches is typically 15-30 min allow athlete to return to their pre-fatigue performance level [5]. Recovery between matches is a key determinant of successful performance of kumite and allowing karate fighter to compete optimally.…”