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Yamada Y, Watanabe K, Fujisawa C, Komiya H, Nakashima H, Tajima T, Umegaki H. Relationship between cognitive function and phase angle measured with a bioelectrical impedance system. Eur Geriatr Med 2024; 15:201-208. [PMID: 38015386 DOI: 10.1007/s41999-023-00894-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/27/2023] [Indexed: 11/29/2023]
Abstract
PURPOSE The purpose of this study was to investigate the relationship between cognitive function and phase angle (PhA), an indicator of muscle quality. METHODS This cross-sectional study enrolled outpatients who visited a memory clinic at the Nagoya University hospital from January 2016 to June 2022. We enrolled 153 participants with body composition measurements. Inclusion criteria were a Mini-Mental State Examination score of 20-30 and a clinical diagnosis of Alzheimer's dementia (AD) or amnesic mild cognitive impairment (aMCI). The background characteristics of the participants were compared according to AD and aMCI. Next, linear regression analysis was performed with PhA as the objective variable. In addition, logistic regression analysis was performed for AD diagnosis. RESULTS PhA was lower in the AD group (P = 0.009). In linear regression analysis, PhA consistently decreased with worsening ADAS score. In logistic regression analysis, high PhA was associated with absence of AD. Gender-specific analyses showed these associations existed only in men. CONCLUSIONS Our study of patients with AD and aMCI found that PhA decreased with worsening of cognitive function. Compared with aMCI, AD was associated with significantly lower PhA. Our results strengthen the limited evidence in the literature showing that low muscle quality is associated with poor cognitive function.
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Affiliation(s)
- Yosuke Yamada
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Kazuhisa Watanabe
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Chisato Fujisawa
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Hitoshi Komiya
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Hirotaka Nakashima
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Tomihiko Tajima
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan
| | - Hiroyuki Umegaki
- Departments of Community Healthcare and Geriatrics, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya City, Aichi, 466-8550, Japan.
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Nakashima D, Fujii K, Tsubouchi Y, Kubo Y, Yorozuya K, Noritake K, Tomiyama N, Tsujishita S, Iitsuka T. Relationship between Phase Angle and Physical Activity Intensity among Community-Dwelling Older Adults in Japan: A Cross-Sectional Study. Healthcare (Basel) 2024; 12:167. [PMID: 38255056 PMCID: PMC10815904 DOI: 10.3390/healthcare12020167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
This cross-sectional study aimed to determine the association between phase angle (PhA) and physical activity intensity in community-dwelling older Japanese adults. The intensity and time of physical activity for predicting high PhA were also examined. This study involved 67 community-dwelling older adults (mean age: 78.3 ± 5.5; female: 83.6%). We measured the physical activity and body composition of the participants. Physical activity was measured using a triaxial accelerometer, and light-intensity physical activity (LPA) and moderate-to-vigorous intensity physical activity (MVPA) hours per day were calculated from the results. Body composition was measured using Inbody S10, and the PhA was calculated from the measurements of the right side of the body. Bayesian statistical modeling revealed an association between PhA and MVPA (β = 0.256; p = 0.022; 95% Bayesian confidence interval [CI] = 0.001, 0.012), but not LPA (β = -0.113; p = 0.341; 95% Bayesian CI = -0.002, 0.001), even after adjustment for confounders. The cutoff value of MVPA predicting high PhA, calculated by the receiver operator characteristic curve, was 19.7 min/d (sensitivity = 0.906; specificity = 0.429). These results can be used to develop strategies to increase PhA in older adults and suggest that MVPA is important in this population.
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Affiliation(s)
- Daiki Nakashima
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University, 3-15-1, Nakatomigaoka, Nara 631-8524, Nara, Japan (T.I.)
| | - Keisuke Fujii
- Department of Rehabilitation Occupational Therapy Course, Faculty of Health Science, Suzuka University of Medical Science, 1001-1, Kishioka, Suzuka 510-0293, Mie, Japan;
| | - Yoshihito Tsubouchi
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University, 3-15-1, Nakatomigaoka, Nara 631-8524, Nara, Japan (T.I.)
| | - Yuta Kubo
- Division of Occupational Therapy, Faculty of Rehabilitation and Care, Seijoh University, 2-172 Fukinodai, Tokai 476-8588, Aichi, Japan; (Y.K.); (K.Y.); (N.T.)
| | - Kyosuke Yorozuya
- Division of Occupational Therapy, Faculty of Rehabilitation and Care, Seijoh University, 2-172 Fukinodai, Tokai 476-8588, Aichi, Japan; (Y.K.); (K.Y.); (N.T.)
| | - Kento Noritake
- Department of Rehabilitation, Faculty of Health Sciences, Nihon Fukushi University, Higashihaemi, Handa 475-0012, Aichi, Japan;
| | - Naoki Tomiyama
- Division of Occupational Therapy, Faculty of Rehabilitation and Care, Seijoh University, 2-172 Fukinodai, Tokai 476-8588, Aichi, Japan; (Y.K.); (K.Y.); (N.T.)
| | - Soma Tsujishita
- Division of Physical Therapy, Faculty of Rehabilitation and Care, Kobe International University, 9-1-6 Kouyou, Higashinada, Kobe 658-0032, Hyogo, Japan;
| | - Terufumi Iitsuka
- Department of Rehabilitation, Faculty of Health Science, Naragakuen University, 3-15-1, Nakatomigaoka, Nara 631-8524, Nara, Japan (T.I.)
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Lin LY, Chen J, Lai TF, Chung YY, Park JH, Hu YJ, Liao Y. Sedentary Behavior and Phase Angle: An Objective Assessment in Physically Active and Inactive Older Adults. Nutrients 2023; 16:101. [PMID: 38201931 PMCID: PMC10780613 DOI: 10.3390/nu16010101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
The purpose of the present study was to investigate the associations of the objectively assessed total sedentary behavior (SB) amount and SB patterns with phase angle (PhA) in older populations and to conduct a comparison analysis for those who are physically active (meet 150 min/week) and inactive (less than 150 min/week). During May to August 2023, a convenience sampling was used to recruit older adults (aged ≥ 65 years) living in a community in Taiwan. The total SB amount (minutes/day), SB patterns (including SB bouts and breaks), and physical activity were assessed by a triaxial accelerometer. A multifrequency bioelectrical impedance analyzer (BIA) was used to measure PhA. Multiple linear regression analysis was employed to examine the associations between SB and PhA in the total number of participants and stratified in the physically active and inactive groups. For the whole sample (n = 166; mean age: 72.1 ± 5.5 years), the total SB amount and patterns of SB were not associated with PhA. For those physically active, the total SB amount and SB patterns were not associated with PhA. Among those physically inactive, the total SB amount was negatively related to PhA (B: -0.059, 95% CI: -0.118, 0.000). This study underscores the importance of minimizing the total SB amount in physically inactive older adults, providing evidence for future interventions targeting SB and PhA in this population.
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Affiliation(s)
- Liu-Yin Lin
- Department of Health Promotion and Health Education, National Taiwan Normal University, Taipei 10610, Taiwan;
- Zhongshan District Health Center, Taipei 10402, Taiwan
- Department of Health, Long-Term Care Division, Taipei City Government, Taipei 11008, Taiwan
| | - Jiaren Chen
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei 106, Taiwan; (J.C.); (T.-F.L.); (Y.-Y.C.)
| | - Ting-Fu Lai
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei 106, Taiwan; (J.C.); (T.-F.L.); (Y.-Y.C.)
- Health Convergence Medicine Laboratory, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea;
| | - Yen-Yu Chung
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei 106, Taiwan; (J.C.); (T.-F.L.); (Y.-Y.C.)
| | - Jong-Hwan Park
- Health Convergence Medicine Laboratory, Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea;
| | - Yih-Jin Hu
- Department of Health Promotion and Health Education, National Taiwan Normal University, Taipei 10610, Taiwan;
| | - Yung Liao
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei 106, Taiwan; (J.C.); (T.-F.L.); (Y.-Y.C.)
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