Nguyen Anh Phong, Herman Benoit, Mahaudens Philippe, Everard Gauthier, Libert Thibaut, Detrembleur Christine
Neuro Musculo Skeletal Lab (NMSK), Institut de Recherche Expérimentale et Clinique, Secteur des Sciences de la Santé, Université catholique de Louvain, Brussels, Belgium.
Institute of Mechanics, Materials and Civil Engineering, Conception, Réalisation et Essais de Dispositifs ElectroMécaniques, Secteur des Sciences technologiques, Université catholique de Louvain, Louvain-la-Neuve, Belgium.
Front Sports Act Living. 2020 Apr 7;2:23. doi: 10.3389/fspor.2020.00023. eCollection 2020.
Excessive or insufficient levels of passive musculoarticular stiffness (PMAS) can lead to joint impairment or instability. Quantifying the PMAS may provide a better understanding of neurological or musculoskeletal disorders. The aims of the present study were multiple: first, to assess the reliability of quantifying PMAS and to collect normative data on the wrist in healthy participants, and second, to assess the effect of age and body size on PMAS. For this purpose, a total of 458 participants from 3 to 90 years old were analyzed with an electromechanical oscillation device (EOD). Passive sinusoidal movements were induced in a flexion/extension pattern in the participants' wrists, enabling an objective measurement of elastic stiffness (EL) and viscous stiffness (VI). Both the dominant and non-dominant wrists were assessed. Two-way repeated-measures ANOVA revealed a sex differentiation from puberty (12-18 years old) and an increase of EL and VI from childhood to adulthood and a decrease of stiffness at old age. EL and VI values were associated with body size characteristics and age. After body size normalization, EL was no longer influenced by the variables measured. On the other hand, VI remained moderately influenced by age and body size. The current study was able to provide normative data of PMAS in the wrist of healthy participants.
被动肌肉关节僵硬（PMAS）水平过高或过低都可能导致关节损伤或不稳定。对PMAS进行量化可能有助于更好地理解神经或肌肉骨骼疾病。本研究的目的有多个：第一，评估PMAS量化的可靠性，并收集健康参与者手腕的正常数据；第二，评估年龄和体型对PMAS的影响。为此，使用机电振荡装置（EOD）对458名年龄在3至90岁之间的参与者进行了分析。在参与者的手腕上以屈伸模式诱发被动正弦运动，从而能够客观测量弹性刚度（EL）和粘性刚度（VI）。对优势手腕和非优势手腕均进行了评估。双向重复测量方差分析显示，青春期（12至18岁）存在性别差异，从儿童期到成年期EL和VI增加，老年期刚度降低。EL和VI值与体型特征和年龄相关。在对体型进行标准化后，EL不再受所测变量的影响。另一方面，VI仍然受到年龄和体型的适度影响。本研究能够提供健康参与者手腕PMAS的正常数据。
