Gdansk College of Health, Pelplinska 7, 83-335, Gdansk, Poland.
Department of Immunobiology and Environment Microbiology, Medical University of Gdansk, Gdansk, Poland.
Sci Rep. 2024 Nov 2;14(1):26416. doi: 10.1038/s41598-024-78369-4.
The aim of the study was to evaluate humeral retroversion, shoulder range of motion, and functional mobility in karatekas, boxers, kickboxers, and mixed martial arts fighters. This study investigated adaptive alterations in striking martial arts. Forty young healthy participants took part in the study. 20 people who professionally trained in boxing, kickboxing, karate, and Mixed Martial Arts (MMA) fighters (age: 23.5 ± 7.1, age of participation 11.8 ± 3.65, sports experience 9.55 ± 5.13, body weight 79.2 ± 13 kg, BMI 24.4 ± 3.3) were qualified for the group of athletes. 20 people (age: 27 ± 5.5, body weight 79.4 ± 7.4, BMI 24.5 ± 1.2) were included in the control group, who had no previous experience with striking combat sports. An ultrasound device and a digital inclinometer were used for the examination of the humeral retroversion angle. The mobility of the shoulder was also tested using the Functional Movement Screen (FMS). There was a significant (p < 0.001, r = 0.92) asymmetry between the dominant and non-dominant limb in the humeral retroversion angle in the athlete group. A statistically significant moderate correlation (p < 0.05) was found between the value of the retroversion angle and the range of motion of passive and active internal rotation, and external rotation, and the shoulder mobility in the FMS test. However, there were no statistically significant differences (p > 0.05) in the humeral retroversion angles between groups. The striking martial arts athletes do not exhibit significant differences in humeral retroversion compared to non-athletes, however they display notable asymmetry between limbs, with higher values in the non-dominant arm. Additionally, the observed correlation between humeral retroversion and shoulder rotation range of motion highlights the potential impact of humeral retroversion on upper limb performance and injury risk.
本研究旨在评估空手道、拳击、踢拳和综合格斗运动员的肱骨后旋、肩部活动范围和功能活动度。本研究调查了打击类武术的适应性变化。40 名年轻健康的参与者参与了研究。20 名专业拳击、踢拳、空手道和综合格斗（MMA）运动员（年龄：23.5±7.1，参与年龄 11.8±3.65，运动经验 9.55±5.13，体重 79.2±13kg，BMI 24.4±3.3）符合运动员组的条件。20 名（年龄：27±5.5，体重 79.4±7.4，BMI 24.5±1.2）无打击格斗运动经验的人被纳入对照组。使用超声设备和数字测斜仪检查肱骨后旋角。还使用功能性运动筛查（FMS）测试肩部活动度。在运动员组中，肱骨后旋角在优势侧和非优势侧之间存在显著的（p<0.001，r=0.92）不对称。后旋角值与被动和主动内旋、外旋以及 FMS 测试中肩部活动度之间存在统计学上显著的中度相关性（p<0.05）。然而，两组之间的肱骨后旋角没有统计学上的显著差异（p>0.05）。与非运动员相比，打击类武术运动员的肱骨后旋角没有显著差异，但他们的四肢存在明显的不对称，非优势臂的后旋角值较高。此外，观察到的肱骨后旋角与肩部旋转活动范围之间的相关性表明，肱骨后旋角对上肢性能和受伤风险可能有影响。
