Rutkauskas Saulius, Paleckis Vidas, Skurvydas Albertas, Satkunskiene Danguole, Brazaitis Marius, Snieckus Audrius, Baranauskiene Neringa, Rancevas Ruslanas, Kamandulis Sigitas
Institute of Sports Science and Innovation, Lithuanian Sports UniversityKaunas, Lithuania.
Department of Radiology, Lithuanian University of Health SciencesKaunas, Lithuania.
Front Physiol. 2017 Aug 3;8:570. doi: 10.3389/fphys.2017.00570. eCollection 2017.
To explore the presence of intratendinous air in physically active males after different types of strenuous physical exercise. To detect foci (air bubbles) in the quadriceps femoris tendon (QFT) and the proximal and distal parts of the patellar tendon, ultrasound examination was performed under two conditions: (1) after high-intensity cycling on a cycle ergometer (metabolic); (2) after 200 drop jumps (exercise-induced muscle damage). Based on the results of these two interventions, the presence of air in the tendons after 100 drop jumps was examined further with frequently repeated ultrasound measurements. Foci were detected in exercise-induced muscle damage. Twenty-three of Sixty investigated tendons (38.3%) were observed to contain hyperechoic foci after 100 drop jumps. QFT foci were present in 13/23 cases (56.5%). The location of foci in the QFT was mostly lateral and centro-lateral (76.9%). The foci disappeared completely between 40 and 180 min after completing 100 drop jumps. The presence of intratendinous air seems related to high-magnitude, high-force, high-strain exercise of the particular tendon areas. It might represent the stress response of tendons to overload condition.
探究不同类型的剧烈体育锻炼后，身体活跃的男性体内腱内空气的存在情况。为了检测股四头肌肌腱（QFT）以及髌腱近端和远端的病灶（气泡），在两种情况下进行了超声检查：（1）在自行车测力计上进行高强度骑行后（代谢性）；（2）在进行200次垂直跳后（运动诱导的肌肉损伤）。基于这两种干预措施的结果，通过频繁重复的超声测量进一步检查了100次垂直跳后肌腱中空气的存在情况。在运动诱导的肌肉损伤中检测到了病灶。在60条被检查的肌腱中，有23条（38.3%）在100次垂直跳后被观察到含有高回声病灶。QFT病灶出现在13/23例（56.5%）中。QFT中病灶的位置大多在外侧和中外侧（76.9%）。在完成100次垂直跳后的40至180分钟内，病灶完全消失。腱内空气的存在似乎与特定肌腱区域的高强度、高力量、高应变运动有关。它可能代表了肌腱对过载状态的应激反应。
