原著
Relationship between trunk range of motion and back extensor strength for postural alignment in community-dwelling older adults
2020 年 70 巻 2-4 号 p. 109-118
詳細
2020 年 70 巻 2-4 号 p. 109-118
Objectives: To clarify the relationship between trunk range of motion（ROM）and back extensor strength（BES）for postural alignment in community-dwelling older adults.
Methods: Postural alignment in the sagittal plane（thoracic kyphosis angle, lumbar lordosis angle, sacral inclination angle, overall inclination angle, knee flexion angle）, trunk ROM, and BES were measured in 52 subjects. We analyzed the relationship between trunk ROM and BES for each of the postural alignment variables and the group of postural alignment variables.
Results: After adjusting for age, body mass index（BMI）, and 5-repetition sit-to-stand test（SS-5）, all postural alignment variables except for the sacral inclination angle were affected by the thoracolumbar ROM. The postures with decreased lumbar lordosis, forward-tilted trunk, and knee flexion were influenced by lumbar ROM, age, BMI, and SS-5. The postures with increased thoracic kyphosis, lumbar lordosis, and sacral forward tilt were affected by only thoracolumbar ROM.
Conclusions: Postural alignment was related to trunk ROM, but there was not enough evidence to say that it is related to BES. Depending on postural characteristics, there may be no relationship with BES.
