The Effectiveness of a CrossFit Training Program for Improving Physical Fitness of Young Judokas: A Pilot Study

Abstract

The aim of this pilot study was to examine the effectiveness of a CrossFit-based training program to enhance the general and sport-specific physical fitness of 10–12-year-old judokas. The study was conducted between September 2021 and February 2022. The pedagogical research experiment was designed to be one complete, annual macrocycle (September–June). The current study presents mid-point data. Twenty male participants (3 years average sports experience; age = 11 ± 0.64 years) were randomly assigned to one of two groups: CrossFit-based training (experimental, n = 10) and traditional training (control, n = 10). Baseline testing was conducted by the researcher and included tests for motor skills and general physical fitness domains including Sweden wall pull-ups and leg raises, push-ups, long jump, squats, burpees, shuttle run, and forward rolls. Judo-specific tests included O Soto Gari and O Goshi throws. CrossFit-based training was implemented twice per week for 15–20 min in the experimental group after usual training. The control group completed traditional methods of physical fitness training for judokas with the same training load regarding time. Experimental group participants significantly improved on leg raises (p < 0.01), push-ups (p < 0.05), and shuttle run (p < 0.001); the control group improved their shuttle run (p < 0.001). Only the experimental group improved on the O Soto Gari (p < 0.01) and O Goshi throws (p < 0.05). Results showed that the use of CrossFit-based trainings had a positive effect on 10–12-year-old judokas’ speed-strength abilities, speed-strength endurance, and muscular strength.

Effects of high-intensity functional training on physical fitness and sport-specific performance among the athletes: A systematic review with meta-analysis

“…The PEDro scale scores ranged from 5 to 6. Seven studies scored 6 points [59][60][61][62][63][64][65], while six studies scored 5 points [41,[66][67][68][69][70]. These scores indicate that the included articles are of good quality.…”

“…Two studies did not specify the eligibility criteria for participant inclusion [41,70]. (5) Athlete training level: three studies were on elite athletes [63,65,67], seven studies on professional sports [41,59,61,64,66,68,69], and one study each on amateur athletes [70], junior athletes [60], and college athletes [62], respectively. .…”

“…. However, one study had a duration of five months [60], another study lasted for six months [66], one study lasted for nine months [64], and one study lasted for ten months [67].…”

“…Six out of 13 studies examined the effects of HIFT on muscle strength in athletes [59,60,64,65,69,70]. These There was low heterogeneity in the overall effect (Q = 3.781; I 2 = 0.00%).…”

Effect of crossfit-trainings on the heart rate of adolescent judokas

“…In order to control the athletes' feelings towards the training load, their pulse rate was measured manually at the wrist before training, during training, and immediately after training. Athletes pressed the index and middle ingers of one hand on the opposite wrist counting the number of beats in 15 s and multiplying that number by four [14].…”