Abstract
We read with great interest the recent publication from Shao et al. [1], aiming to investigate whether exercise is capable of preventing or treating trismus in patients with head and neck cancer. The results revealed the maximal interincisal opening (MIO) significantly increased from 4.48 mm to 14.20 mm after exercise therapy. For the preventive outcome, no significant difference between standard usual care and exercise therapy was concluded. However, we would like to point out the following two methodological concerns.
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