{'fraction_non_alphanumeric': 0.008756567425569177, 'fraction_numerical': 0.0, 'mean_word_length': 5.421348314606742, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Comparative experiment and dynamic simulation on cervical traction therapy

This study aims to verify the accuracy of a cervical traction therapy simulation model by comparing the intervertebral separations of six normal male adults when traction applied to their cervical spines. The subjects were tested on two mechanical traction devices, representing the inclined and sitting positions. Radiographic images of their cervical spines were taken before, during and after traction. The observed changes of the cervical spine were used as input to adjust parameters of the traction therapy model, which contains a cervical spine built with springs and dampers and two traction devices in inclined and sitting positions. A series of traction forces and traction angles were applied to the model to simulate the actual parameters used in the experiment and the new model was used to evaluate the two traction positions. The result suggests that inclined position not only creates greater intervertebral separations on the posterior sides, it also provides a more accurate and smoother transition when switching between different traction angles.