Lorenzo-Sánchez-Aguilera Cristina, Rodríguez-Sanz David, Gallego-Izquierdo Tomás, Lázaro-Navas Irene, Plaza-Rodríguez Josue, Navarro-Santana Marcos, Pecos-Martín Daniel
Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, España.
Physical Therapy Faculty. Alcala de Henares University.
Pain Med. 2020 Sep 1;21(9):1991-1998. doi: 10.1093/pm/pny299.
Ankle sprain is one of the most common musculoskeletal injuries in sports, at work, and at home. Subjects who suffer from this injury may develop ankle instability. Functional instability has been associated with a high rate of resprain and impaired neuromuscular control in patients with ankle instability.
Measurement of neural and muscular mechanosensitivity after ankle sprain injury and establishment of the relationship between these variables.
A cross-sectional case-control study was performed with a sample of 58 students from Alcalá de Henares University (21 males and 37 females, mean age ± SD = 21 ± 3.7 years). Subjects were divided into two groups: a case group (N = 29, subjects with unstable ankle) and a control group (N = 29, healthy subjects). The pressure pain threshold (PPT) of the tibialis anterior, peroneus longus, and peroneus brevis muscles and mechanosensitivity of the common peroneus and tibial nerves were evaluated in all subjects through a manual mechanical algometer.
Neuromuscular PPTs showed significant differences (P < 0.05) between both groups, such that, compared with the control group, the case group exhibited significantly lower PPT levels. In the case group, a strong positive correlation was observed between neural and muscular homolateral mechanosensitivity in both lower limbs.
Participants with chronic ankle instability showed higher neuromuscular mechanosensitivity in muscles and nerves surrounding the ankle joint than healthy subjects. These findings indicate that low PPT values may be associated with symptoms that characterize this disease.
踝关节扭伤是运动、工作和家庭中最常见的肌肉骨骼损伤之一。遭受这种损伤的受试者可能会出现踝关节不稳定。功能不稳定与踝关节不稳定患者的高再扭伤率和神经肌肉控制受损有关。
测量踝关节扭伤后的神经和肌肉机械敏感性，并建立这些变量之间的关系。
对阿尔卡拉德埃纳雷斯大学的58名学生（21名男性和37名女性，平均年龄±标准差=21±3.7岁）进行横断面病例对照研究。受试者分为两组：病例组（N = 29，踝关节不稳定的受试者）和对照组（N = 29，健康受试者）。通过手动机械压力计评估所有受试者胫骨前肌、腓骨长肌和腓骨短肌的压痛阈值（PPT）以及腓总神经和胫神经的机械敏感性。
两组之间的神经肌肉PPTs存在显著差异（P < 0.05），因此，与对照组相比，病例组的PPT水平显著降低。在病例组中，观察到双下肢神经和肌肉同侧机械敏感性之间存在强正相关。
慢性踝关节不稳定的参与者比健康受试者在踝关节周围的肌肉和神经中表现出更高的神经肌肉机械敏感性。这些发现表明，低PPT值可能与该疾病的特征性症状有关。
