Effect of bed height and use of hands on trunk angular velocity during the sit-to-stand transfer

Abstract

The ability to rise from a chair or bed is critical to an individual's quality of life because it determines functional independence. This study was to investigate the effect of bed height and use of hands on trunk angular velocity and trunk angles during the sit-to-stand (STS) performance. Twenty-four older persons (median age 74 years) were equipped with a body-fixed gyroscopic sensor and stood up from a bed adjusted to different heights, with and without the use of hands at each height. Peak angular velocity and trunk range of motion decreased with increasing bed height (all p ≤ 0.038) and were lower using hands during STS transfer indicating less effort. In conclusion, gyroscopic sensor data of the STS transfer of older persons show differences as an effect of bed height and use of hands. These results provide the rationale for recommending a relatively high bed height for most of the older persons.

Abstract

Practitioner Summary: To minimise the effort during sit-to-stand transfer performance from bed, it is necessary to understand the effect of bed height and use of hands. It is concluded that a relatively high bed height and the use of hands is helpful for most of the older persons during sit-to-stand transfer.

Keywords::

• bed height
• inertial sensor
• older persons
• sit-to-stand
• use of hands

Acknowledgements

The authors thank Victoria Brandon for reading the manuscript. This work was supported by the Robert Bosch Foundation as the owner of the Robert-Bosch-Hospital where the study was conducted. R.C.v.L. is the owner and J.E. is an employee of McRoberts B.V. This company is the manufacturer of the DynaPort^® Hybrid sensor.