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Otani T1, Miwa M1, Ogata S1, Takeuchi Y1, Takasugi J1, Fujio K1
1Chiba Prefectural University of Health Sciences, Division of Physical Therapy, Department of Rehabilitation, Faculty of Healthcare Sciences, Chiba, Japan
Background: The ability to rise from a supine position is an important factor for independent living. McCoy classified the movement of the body parts of adolescents into several patterns while subjects rose from a supine position. In McCoy's study, the subjects were required to rise as quickly as possible. The movement patterns (MPs) of the body parts when rising at the fastest speed could differ from those when rising at a comfortable speed.
Purpose: The purposes of this study were:
1) to clarify the occurrence ratios of MPs of the body parts while young subjects rose from a supine position at a comfortable speed with the MP descriptions used in McCoy's study and
2) to determine whether the movements of the body parts while rising at a comfortable speed could be classified comprehensively using McCoy's descriptions.
Methods: Thirty-eight healthy young individuals (aged 20-29 years) participated in this study. Four video cameras were used to record their motions. The subjects were asked to rise from a supine to a seated position on the right edge of the bed at a comfortable speed. One trial was recorded for each subject. MPs observed for the left upper extremity (LUE), right upper extremity (RUE), trunk, and lower extremities (LE) were classified using McCoy's descriptions. The occurrence ratios of the MPs were compared with those reported in McCoy's study by using the Fisher exact test. The comprehensiveness of the MP descriptions was investigated by determining the number of movements that could not be classified.
Results: The most frequently observed patterns were “push” and “lift or lift and reach” (36.8% for each) for the LUE, “lateral lift and push” (34.2%) for the RUE, “roll off” (42.1%) for the trunk, and “step off” (57.9%) for the LE. The occurrence ratios of the MPs significantly differed from those of McCoy's study concerning all regions (p 0.001 for all). The number of movements that could not be classified using McCoy's descriptions was 1 for the LUE, 10 for the RUE, 1 for the trunk, and 1 for the LE. We developed a new classification, “double push,” for the RUE movement. “Double push” indicates the following pattern: “The extremity pushes into the bed. Then, the limb lifts and pushes into the bed again. The extremity is then lifted and may be used as a balance assist.” Nine of the 10 movements of the RUE that were not classified using McCoy's descriptions were classified as “double push.”
Conclusion(s): The occurrence ratios of the MPs significantly differed between rising at a comfortable speed and rising at the fastest speed. The new MP descriptions that consisted of the “double push” classification for the RUE could classify almost all the movements of the body parts while the young subjects rose from a supine position at a comfortable speed.
Implications: The new descriptions consisting of “double push” for the RUE might be recommended for classifying the movements of body parts while rising from a supine position at a comfortable speed.
Keywords: rising, movement patterns, classification
Funding acknowledgements: This work was supported by a Collaborative Research Funding from the Chiba Prefectural University of Health Sciences (2017-E2).
Purpose: The purposes of this study were:
1) to clarify the occurrence ratios of MPs of the body parts while young subjects rose from a supine position at a comfortable speed with the MP descriptions used in McCoy's study and
2) to determine whether the movements of the body parts while rising at a comfortable speed could be classified comprehensively using McCoy's descriptions.
Methods: Thirty-eight healthy young individuals (aged 20-29 years) participated in this study. Four video cameras were used to record their motions. The subjects were asked to rise from a supine to a seated position on the right edge of the bed at a comfortable speed. One trial was recorded for each subject. MPs observed for the left upper extremity (LUE), right upper extremity (RUE), trunk, and lower extremities (LE) were classified using McCoy's descriptions. The occurrence ratios of the MPs were compared with those reported in McCoy's study by using the Fisher exact test. The comprehensiveness of the MP descriptions was investigated by determining the number of movements that could not be classified.
Results: The most frequently observed patterns were “push” and “lift or lift and reach” (36.8% for each) for the LUE, “lateral lift and push” (34.2%) for the RUE, “roll off” (42.1%) for the trunk, and “step off” (57.9%) for the LE. The occurrence ratios of the MPs significantly differed from those of McCoy's study concerning all regions (p 0.001 for all). The number of movements that could not be classified using McCoy's descriptions was 1 for the LUE, 10 for the RUE, 1 for the trunk, and 1 for the LE. We developed a new classification, “double push,” for the RUE movement. “Double push” indicates the following pattern: “The extremity pushes into the bed. Then, the limb lifts and pushes into the bed again. The extremity is then lifted and may be used as a balance assist.” Nine of the 10 movements of the RUE that were not classified using McCoy's descriptions were classified as “double push.”
Conclusion(s): The occurrence ratios of the MPs significantly differed between rising at a comfortable speed and rising at the fastest speed. The new MP descriptions that consisted of the “double push” classification for the RUE could classify almost all the movements of the body parts while the young subjects rose from a supine position at a comfortable speed.
Implications: The new descriptions consisting of “double push” for the RUE might be recommended for classifying the movements of body parts while rising from a supine position at a comfortable speed.
Keywords: rising, movement patterns, classification
Funding acknowledgements: This work was supported by a Collaborative Research Funding from the Chiba Prefectural University of Health Sciences (2017-E2).
Topic: Human movement analysis
Ethics approval required: Yes
Institution: Chiba Prefectural University of Health Sciences
Ethics committee: the Research Ethics Committee
Ethics number: 2017-05
All authors, affiliations and abstracts have been published as submitted.
