Research Group in Sports Biomechanics (GIBD), Department of Physical Education and Sports, University of Valencia, 46010 Valencia, Spain.
Department of Physical Education and Sports, University of Valencia, 46010 Valencia, Spain.
Sensors (Basel). 2022 Nov 7;22(21):8572. doi: 10.3390/s22218572.
Valencian handball consists in hitting the ball with the hands and it may contribute to injury development on the hands. This study aimed to analyze skin temperature asymmetries and recovery after a cold stress test (CST) in professional players of Valencian handball before and after a competition. Thirteen professional athletes and a control group of ten physically active participants were measured. For both groups, infrared images were taken at the baseline condition; later they underwent a thermal stress test (pressing for 2 min with the palm of the hand on a metal plate) and then recovery images were taken. In athletes, the images were also taken after their competition. Athletes at baseline condition presented lower temperatures (p < 0.05) in the dominant hand compared with the non-dominant hand. There were asymmetries in all regions after their match (p < 0.05). After CST, a higher recovery rate was found after the game. The regions with the most significant differences in variation, asymmetries and recovery patterns were the index, middle and ring fingers, and the palm of the dominant hand. Taking into account that lower temperatures and the absence of temperature variation may be the consequence of a vascular adaptation, thermography could be used as a method to prevent injuries in athletes from Valencian handball.
瓦伦西亚手球是用手击球的运动，可能会对手部造成伤害。本研究旨在分析职业瓦伦西亚手球运动员在比赛前后接受冷应激测试（CST）前后手部皮肤温度的不对称性和恢复情况。共有 13 名职业运动员和 10 名有体育活动的对照组参与者接受了测量。对于两组参与者，在基线条件下拍摄红外图像；然后进行热应激测试（用手掌按压金属板 2 分钟），然后拍摄恢复图像。运动员还在比赛后拍摄了图像。在基线条件下，运动员的优势手温度低于非优势手（p < 0.05）。比赛后所有区域均存在不对称性（p < 0.05）。CST 后，比赛后恢复速度更快。变化、不对称和恢复模式差异最大的区域是食指、中指和无名指以及优势手的手掌。考虑到较低的温度和缺乏温度变化可能是血管适应的结果，热成像技术可用于预防瓦伦西亚手球运动员受伤。
