Takayama Ayaka, Ishizaka Masahiro, Kubo Akira, Sato Minami, Yakabi Akihiro, Tsukahara Sho, Numaguchi Shunya, Ishii Hideaki
Division of Physical Therapy, Master Program in Health Sciences, Graduate School of Health and Welfare Sciences, International University of Health and Welfare, Japan.
Department of Physical Therapy, Graduate School of Health and Welfare Sciences, International University of Health and Welfare: 2600-1 Kitakanemaru, Otawara-shi, Tochigi 324-8501, Japan.
J Phys Ther Sci. 2024 Sep;36(9):526-529. doi: 10.1589/jpts.36.526. Epub 2024 Sep 5.
[Purpose] This study aimed to clarify the association between phase angle (PhA) and the level of independence in daily living among institutionalized super older females requiring nursing care. [Participants and Methods] This three-facility cross-sectional study enrolled 173 nursing home residents (mean age 91.0 years, standard deviation 4.9 years) divided into five groups, from 80+ to 100+ years of age, in 5-year increments. PhA, skeletal muscle mass index, body fat percentage, body mass index, and Barthel Index were measured in the five groups. We measured the relationship between age and PhA and analyzed partial correlation coefficients using these items. The adjusted variables differed significantly among the five groups. [Results] The overall PhA was 2.91 degrees, with a 2.36-degree PhA in patients aged >100 years. Age differences were found between the PhA and the Barthel Index. A significant correlation (0.66) was identified between the PhA and the Barthel Index. The age-adjusted partial correlation coefficient between the PhA and the Barthel Index was 0.56, indicating a moderately significant positive correlation. [Conclusion] This study identified an association between PhA and independence in daily living among female nursing home residents aged 80-107 years, indicating that the PhA is an excellent indicator of physical condition.
[目的] 本研究旨在阐明相位角（PhA）与需要护理的机构养老高龄女性日常生活自理水平之间的关联。[参与者与方法] 这项三机构横断面研究纳入了173名养老院居民（平均年龄91.0岁，标准差4.9岁），分为五组，年龄从80多岁到100多岁，以5年为增量。测量了五组的相位角、骨骼肌质量指数、体脂百分比、体重指数和巴氏指数。我们测量了年龄与相位角之间的关系，并使用这些指标分析了偏相关系数。五组之间的调整变量差异显著。[结果] 总体相位角为2.91度，100岁以上患者的相位角为2.36度。在相位角和巴氏指数之间发现了年龄差异。相位角与巴氏指数之间存在显著相关性（0.66）。相位角与巴氏指数的年龄调整偏相关系数为0.56，表明存在中度显著的正相关。[结论] 本研究确定了80 - 107岁女性养老院居民的相位角与日常生活自理能力之间的关联，表明相位角是身体状况的一个优秀指标。
