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Analysis of the effect of handrail and foot position on STS in healthy young adults with knee support

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Abstract

Background

Rising from a sitting position, or “sit-to-stand” (STS), is one of the basic activities in daily life. Therefore, studying the kinematics and kinetics of STS could help optimize STS movement strategy. This study analyzes the comprehensive influence of the handrail and foot position under the knee joint support on STS kinematics and kinetics.

Methods

A total of 30 young people were recruited to participate in this study. Their average age, height, weight, and BIM were 24.21 years old, 168.52 cm, 60.92 kg, and 21.46 kg/m2, respectively. The experiment was conducted under six experimental conditions. Total movement time, percent of movement time of each phase, trunk tilt angle, and peak joint moment were analyzed and compared. In addition, a correlation analysis was carried out between the range of motion of the joint angle and the peak joint moment.

Results

The results showed that the far handrail had the largest trunk tilt angle, and the smallest total moment impulse of the lower limb joints. The closer the foot was to the seat, the smaller the peak hip joint moment, and the larger the peak moment of ankle and knee joints, and a shorter total movement time.

Conclusions

The position of the handrail had a significant influence on the trunk tilt angle, percent of movement time of certain phase, and the total moment impulse of the lower limb joints. And the position of the foot had a significant influence on the peak moments of the ankle, hip, and knee joints.

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Data availability

The datasets used and/or analyzed for the current study are available from the corresponding author on reasonable request.

Abbreviations

STS:

sit-to-stand

AP:

anterior-posterior

LSD:

least significant difference

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Acknowledgements

The authors wish to acknowledge the financial support from the Key Project of Tianjin Natural Science Foundation (19JCZDJC33200).

Funding

The Key Project of Tianjin Natural Science Foundation (19JCZDJC33200)

Author information

Authors and Affiliations

Authors

Contributions

Conceptualization: Shuo Yang, Na Zhao, Shouwei Zhang, and Qiang Xue. Formal analysis: Na Zhao. Methodology: Shuo Yang and Qiang Xue. Supervision: Qiang Xue. Visualization: Shouwei Zhang

Corresponding author

Correspondence to Shuo Yang.

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Ethics approval and consent to participate

This study was approved by the Academic Ethics and Scientific Ethics Committee of the Academic Committee of Tianjin University of Science and Technology. All subjects provided informed consent prior to participation.

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The authors declare no competing interests.

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Yang, S., Zhao, N., Zhang, S. et al. Analysis of the effect of handrail and foot position on STS in healthy young adults with knee support. Res. Biomed. Eng. 39, 853–862 (2023). https://doi.org/10.1007/s42600-023-00310-x

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  • DOI: https://doi.org/10.1007/s42600-023-00310-x

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