About the Authors

Hsun-Wen Chang

Affiliations Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan, Department of Physical Therapy, Fooyin University, Kaohsiung, Taiwan

Hsiao-Feng Chieh

Affiliation Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan

Chien-Ju Lin

Affiliation Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan

Fong-Chin Su

fcsu@mail.ncku.edu.tw

Affiliations Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan, Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan

Ming-June Tsai

Affiliation Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HWC HFC CJL FCS. Performed the experiments: HWC. Analyzed the data: HWC. Contributed reagents/materials/analysis tools: FCS MJT. Wrote the paper: HWC. Participated in the interpretation of the data: HWC HFC CJL. Revising of the manuscript: HWC HFC CJL.