Macintosh J E, Bogduk N, Gracovetsky S
Department of Anatomy, University of Queensland, St Lucia 4067, Queensland, Australia.
Clin Biomech (Bristol). 1987 May;2(2):78-83. doi: 10.1016/0268-0033(87)90132-X.
The back muscles alone are unable to provide the extensor moment required to lift large weights, and must be aided by another source of anti-flexion moments. It has been postulated that contraction of the abdominal muscles can provide an extension moment by developing tension in the thoracolumbar fascia (TLF). Anatomical studies and a biomechanical analysis, however, reveal that the anti-flexion moment generated in this way is only very small. Too little of the abdominal musculature attaches to the TLF to generate a significant tension in it. Previous calculations of the forces in the TLF have overestimated the tension developed in it because of erroneous assumptions and interpretations of the relevant anatomy. Whatever the role played by the TLF in lifting it must be essentially independent of abdominal mechanisms.
仅靠背部肌肉无法提供举起重物所需的伸肌力矩，必须借助另一个抗屈曲力矩来源。据推测，腹肌收缩可通过在胸腰筋膜（TLF）中产生张力来提供伸展力矩。然而，解剖学研究和生物力学分析表明，以这种方式产生的抗屈曲力矩非常小。附着在TLF上的腹肌组织太少，无法在其中产生显著张力。先前对TLF中力的计算由于对相关解剖结构的错误假设和解释而高估了其中产生的张力。无论TLF在举重过程中起什么作用，它本质上都必须独立于腹部机制。
