Constructive research is a method for elucidating the mechanisms of phenomena that are difficult to measure. In constructive research, the aim is to elucidate real phenomena by simulating events using available data. Methods for simulating reproduction include humanoid robots and computer simulations. We conducted a study to reproduce swallowing movements using computer simulations and reported an example of simulating organ movements. In this study, in order to examine the suitability of the muscle synergy hypothesis, we estimated muscle activity rates using a musculoskeletal model created based on 4D CT of swallowing and the three-dimensional configuration of muscles, and performed muscle synergy analysis using the estimated muscle activity rates. As a result, multiple spatial patterns were suggested for the muscle synergy model, which we report here with a neurological examination.
MICHIWAKI et al. (2025) studied this question.