A study on thumb manipulative forces of cervical rotatory and local manipulation during cracking sounds / 实用医学杂志

ABSTRACT

Objective To measure the thumb manipulative forces of Lin cervical rotation manipulation during cracking sounds,and provide quantitative basis for its inheritance,teaching and learning,promotion and basic research of the manipulation.Methods The thumb manipulative force of Lin cervical rotation manipulation and traditional cervical rotation manipulation during cracking sounds were tested and recorded with a multi-film pressure measurement system.Result There was statistically significant difference between the maximum thumb manipulative force of the hand used frequently and the hand used infrequently (P ＜ 0.05).The maximum thumb manipulative force of Lin cervical rotational manipulation is lower than the traditional cervical rotation manipulation (P ＜ 0.05).Conclusion Whether inIN traditional or Lin cervical rotation manipulation,the maximum thumb manipulative force of the hand used frequently is more than the hand used infrequently.Lin cervical rotation manipulation has better ergonomic characteristics of biological engineering,safer,more low energy consumption practices.