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Akazawa N, Funai K, Hino T, Tsuji R, Tamura W, Tamura K, Hioka A, Moriyama H. Increased intramuscular adipose tissue of the quadriceps at admission is more strongly related to activities of daily living recovery at discharge compared to muscle mass loss in older patients with aspiration pneumonia. BMC Geriatr 2024; 24:107. [PMID: 38287269 PMCID: PMC10826265 DOI: 10.1186/s12877-024-04718-7] [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: 07/10/2023] [Accepted: 01/17/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Recent studies reported that an increase in intramuscular adipose tissue of the quadriceps in older patients negatively affects the recovery of activities of daily living (ADL) more than the loss of muscle mass. However, whether intramuscular adipose tissue of the quadriceps in older patients with aspiration pneumonia is related to ADL recovery remains unclear. This study aimed to determine the relationship between intramuscular adipose tissue of the quadriceps and ADL recovery in older patients with aspiration pneumonia. METHODS Thirty-nine older inpatients who were diagnosed with aspiration pneumonia participated in this prospective study. The main outcome of this study was ADL at discharge. ADL were assessed using the Barthel Index (BI). The intramuscular adipose tissue and muscle mass of the quadriceps were evaluated at admission using echo intensity and muscle thickness observed on ultrasound images. A multiple linear regression analysis was performed to confirm whether the quadriceps echo intensity was related to the BI score at discharge, even after adjusting for confounding factors. RESULTS The medians [interquartile range] of the BI score at admission and discharge were 15.0 [0.0-35.0] and 20.0 [5.0-55.0], respectively. The BI score at discharge was significantly higher than that at admission (p = 0.002). The quadriceps echo intensity (β = - 0.374; p = 0.036) and BI score at admission (β = 0.601; p < 0.001) were independently and significantly related to the BI score at discharge (R2 = 0.718; f2 = 2.546; statistical power = 1.000). In contrast, the quadriceps thickness (β = - 0.216; p = 0.318) was not independently and significantly related to the BI score at discharge. CONCLUSIONS Increased intramuscular adipose tissue of the quadriceps at admission is more strongly and negatively related to ADL recovery at discharge than the loss of muscle mass among older patients with aspiration pneumonia. Interventions targeting the intramuscular adipose tissue of the quadriceps may improve ADL among these patients.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-Cho, Tokushima-City, Tokushima, 770-8514, Japan.
| | - Keita Funai
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Wataru Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-Cho, Tokushima-City, Tokushima, 770-8514, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Kimura Y, Otobe Y, Suzuki M, Tanaka S, Kojima I, Suzuki Y, Oyamada C, Kobayashi D, Hamanaka K, Yamada M. Relationship between physical activity levels and changes in skeletal muscle characteristics in patients with stroke. Disabil Rehabil 2023:1-7. [PMID: 37870203 DOI: 10.1080/09638288.2023.2272715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE This study aimed to investigate the relationship between physical activity (PA) levels and short-term changes in skeletal muscle characteristics in patients with subacute hemiparetic stroke. MATERIALS AND METHODS This prospective observational study included 76 patients with stroke who received inpatient care in a convalescent rehabilitation ward. The PA level was measured as the duration of daily total PA (≥ 1.5 metabolic equivalents) using a triaxial accelerometer for 7 days after admission. The outcomes were changes in the quadriceps muscle quality and quantity on the affected and unaffected sides, as assessed by ultrasonography at admission and 1 month after admission. RESULTS Multiple regression analysis indicated that the duration of total PA was significantly associated with a percentage change in quadriceps muscle quality (p = 0.011) and quantity (p = 0.012) on the affected side. However, no significant relationship was observed between the muscle quality and quantity on the unaffected side. CONCLUSIONS The results revealed that PA was associated with changes in the quadriceps muscle quality and quantity on the affected side in patients with subacute hemiparetic stroke. These findings highlight the importance of promoting PA in stroke rehabilitation to improve muscle properties and functional outcomes.
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Affiliation(s)
- Yosuke Kimura
- College of Science and Engineering, Health Science and Technology Course, Kanto Gakuin University, Yokohama, Japan
| | - Yuhei Otobe
- Graduate School of Rehabilitation Science, Osaka Metropolitan University, Osaka, Japan
| | - Mizue Suzuki
- Faculty of Allied Health Sciences, Yamato University, Osaka, Japan
| | - Shu Tanaka
- Major of Physical Therapy, Department of Rehabilitation, School of Health Sciences, Tokyo University of Technology, Tokyo, Japan
| | - Iwao Kojima
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan
| | - Yoshiki Suzuki
- Department of Rehabilitation, Tokyo Shinjuku Medical Center, Japan Community Health care Organization, Tokyo, Japan
| | - Chihiro Oyamada
- Department of Rehabilitation, Tokyo Shinjuku Medical Center, Japan Community Health care Organization, Tokyo, Japan
| | - Daishun Kobayashi
- Department of Rehabilitation, Tokyo Shinjuku Medical Center, Japan Community Health care Organization, Tokyo, Japan
| | - Koji Hamanaka
- Department of Rehabilitation, Tokyo Shinjuku Medical Center, Japan Community Health care Organization, Tokyo, Japan
| | - Minoru Yamada
- Faculty of Human Sciences, University of Tsukuba, Tokyo, Japan
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Akazawa N, Funai K, Hino T, Tsuji R, Tamura W, Tamura K, Hioka A, Moriyama H. Greater intramuscular adipose tissue of the quadriceps in older inpatients at post-acute hospital admission is more strongly related to a low rate of home discharge than a loss of muscle mass. Sci Rep 2023; 13:10021. [PMID: 37340034 DOI: 10.1038/s41598-023-37094-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/15/2023] [Indexed: 06/22/2023] Open
Abstract
This study aimed to examine the relationships between intramuscular adipose tissue and muscle mass of the quadriceps at post-acute hospital admission and the low rate of home discharge. This prospective study included 389 inpatients aged ≥ 65 years. Patients were divided into two groups according to the destination: home discharge (n = 279) and no-home discharge (n = 110) groups. The primary outcome was hospital discharge destination (home discharge or not). Intramuscular adipose tissue and muscle mass of the quadriceps were assessed at post-acute hospital admission using echo intensity and muscle thickness on ultrasound images, respectively. Logistic regression analysis was used for determining whether quadriceps echo intensity is related to home discharge. Quadriceps echo intensity was significantly and independently associated with home discharge (odds ratio [per 1 SD increase] = 1.43, p = 0.045). Quadriceps thickness was not associated with home discharge (odds ratio [per 1 SD increase] = 1.00, p = 0.998). Our study indicates that greater intramuscular adipose tissue of the quadriceps in older inpatients at post-acute hospital admission is more strongly related to a low rate of home discharge than a loss of muscle mass.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan.
| | - Keita Funai
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Wataru Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Jing X, Yang M, Liu Y, Wang Y, Li J, Hu W. Associations of Trunk Muscle Mass and Muscle Quality Indicators with Self-Reported Dysphagia in Older Inpatients. Dysphagia 2023; 38:415-424. [PMID: 35789425 DOI: 10.1007/s00455-022-10480-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/10/2022] [Indexed: 02/05/2023]
Abstract
Recent studies have correlated dysphagia with ultrasound-measured quadriceps muscle mass and quality. Computed tomography (CT) is more precise than ultrasound for estimating muscle mass and quality. We aimed to investigate the possible associations of chest CT-determined trunk muscle mass and quality with dysphagia. A cross-sectional study. Older inpatients in a geriatric department of a university hospital. Self-reported dysphagia was determined by the Dysphagia Handicap Index. Unenhanced chest CT images were segmented to calculate skeletal muscle area (SMA) and intermuscular adipose tissue (IMAT). Skeletal muscle index (SMI) was calculated via SMA/ height squared. The percentage of IMAT (IMAT%) was calculated by IMAT% = IMAT/ (SMA + IMAT) × 100%. Mimics software was applied to calculate the mean skeletal muscle radio density (SMD).The semiquantitative food frequency method, the Barthel Index (BI), and the Mini Nutritional Assessment Short-Form (MNA-SF) were used to evaluate energy intake, activities of daily living, and nutrition status, respectively. Among the 212 participants (mean age: 84 years), 89 (42%) had self-reported dysphagia. After adjustment for age, nutrition status, energy intake, and other confounders, the SMI (adjusted OR 0.91, 95% CI 0.86, 0.96) was negatively associated with dysphagia, whereas the IMAT (adjusted OR 1.08, 95% CI 1.01, 1.16) and the IMAT% (adjusted OR 1.10, 95% CI 1.04,1.17) were positively associated with dysphagia. However, the SMD (adjusted OR 0.99, 95% CI 0.94, 1.05) was not significantly associated with dysphagia. The subgroup analyses indicated that only the SMI (adjusted OR 0.92, 95% CI 0.86, 0.97) and the IMAT% (adjusted OR 1.08, 95% CI 1.01, 1.17) were significantly associated with dysphagia in men. None of these indicators was significantly associated with dysphagia in women. Trunk muscle mass and quality (estimated by chest CT-derived SMI and IMAT%, respectively) were significantly associated with self-reported dysphagia in older inpatients, especially in men. IMAT% might be a more sensitive muscle quality indicator than IMAT (or SMD). These results merit further investigation in prospective studies.
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Affiliation(s)
- Xiaofan Jing
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No 37 Guoxue Lane, Chengdu, 610041, China
| | - Ming Yang
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yuan Liu
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No 37 Guoxue Lane, Chengdu, 610041, China
| | - Yan Wang
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No 37 Guoxue Lane, Chengdu, 610041, China
| | - Jingjing Li
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No 37 Guoxue Lane, Chengdu, 610041, China
| | - Wen Hu
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No 37 Guoxue Lane, Chengdu, 610041, China.
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. Muscular Echo-Intensity of the Quadriceps by Ultrasound Is More Related to Improvement of Gait Independence than Muscle Thickness in Older Inpatients. J Nutr Health Aging 2023; 27:103-110. [PMID: 36806865 DOI: 10.1007/s12603-023-1880-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES This study aimed to examine whether the decrease in muscular echo-intensity of the quadriceps by ultrasound in older inpatients is related to the improvement of gait independence than the increase of muscle thickness. DESIGN Longitudinal study. SETTING Hospital-based study. PARTICIPANTS This study included 171 inpatients aged ≥ 65 years (median age: 84.0 [77.0-88.0], 56.1% female). Patients who were able to walk independently at hospital admission were excluded from the study. MEASUREMENTS Improvement of gait independence during hospital stay was assessed using the change in Functional Independence Measure (FIM) gait score (i.e., FIM gait score at hospital discharge minus FIM gait score at hospital admission) and FIM gait score at hospital discharge. Muscular echo-intensity and muscle thickness of the quadriceps were assessed at hospital admission and discharge using ultrasound images, respectively. Muscular echo-intensity has been shown to be mainly related to intramuscular adipose tissue. Multiple linear regression analysis was performed to identify the factors independently associated with the change in FIM gait score and FIM gait score at discharge. RESULTS Change in quadriceps echo-intensity was independently and significantly associated with the change in FIM gait score (β = -0.22, p = 0.017) and FIM gait score at hospital discharge (β = -0.21, p = 0.017). In contrast, change in quadriceps thickness was not independently and significantly associated with the change in FIM gait score (β = 0.16, p = 0.050) and FIM gait score at hospital discharge (β = 0.15, p = 0.050). CONCLUSIONS Our study indicates that a decrease in muscular echo-intensity of the quadriceps by ultrasound is more related to the improvement of gait independence than an increase of muscle thickness in older inpatients. Intervention for intramuscular adipose tissue of the quadriceps may be important for improving gait independence in older inpatients.
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Affiliation(s)
- N Akazawa
- Naoki Akazawa, Assistant Professor, Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-cho, Tokushima-city, Tokushima 770-8514, Japan, Tel +81 88 602 8000, Fax +81 88 602 8146,
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. The degree of recovery in swallowing ability in older inpatients with aspiration pneumonia is related to intramuscular adipose tissue of the quadriceps than to muscle mass. PLoS One 2022; 17:e0275810. [PMID: 36215269 PMCID: PMC9550090 DOI: 10.1371/journal.pone.0275810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/23/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND & AIM A recent study reported that the increase in intramuscular adipose tissue of the quadriceps in older inpatients is related to a decreasing degree of recovery in swallowing ability compared to the loss of muscle mass. However, whether the association remains true in case of aspiration pneumonia is unclear. Therefore, this study aimed to examine the relationship between the degree of recovery in swallowing ability and intramuscular adipose tissue in the quadriceps of older inpatients with aspiration pneumonia. METHODS This prospective study included 39 older patients with aspiration pneumonia. Swallowing ability was assessed using the Food Intake Level Scale (FILS). The indicators for the degree of recovery in swallowing ability were FILS at discharge and change in FILS. A greater change in FILS indicates a greater improvement in swallowing ability. Intramuscular adipose tissue and muscle mass of the quadriceps were evaluated at admission using echo intensity and muscle thickness on ultrasound images, respectively. Multiple regression analysis was used to determine whether the echo intensity of the quadriceps was independently and significantly related to FILS at discharge and the change in FILS. Independent variables were age, sex, days from disease onset, echo intensity and muscle thickness of the quadriceps, subcutaneous fat thickness of the thigh, FILS at admission, and number of units of rehabilitation therapy. RESULTS Echo intensity of the quadriceps (β = -0.363, p = 0.012) and FILS at admission (β = 0.556, p < 0.001) were independently and significantly associated with FILS at discharge (R2 = 0.760, f2 = 3.167, statistical power = 1.000). Similar variables (echo intensity of the quadriceps [β = -0.498, p = 0.012] and FILS at admission [β = -0.635, p < 0.001]) were independently and significantly related to change in FILS (R2 = 0.547, f2 = 1.208, statistical power = 0.998). Quadriceps muscle thickness was not independently and significantly related to FILS at discharge and change in FILS. CONCLUSION Our results indicate that intramuscular adipose tissue of the quadriceps in older inpatients with aspiration pneumonia is more strongly related to the degree of recovery in swallowing ability (that is, swallowing ability at discharge and change in swallowing ability) than muscle mass, and patients who have high intramuscular adipose tissue of the quadriceps at admission have a lower degree of recovery in swallowing ability.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
- * E-mail:
| | - Masaki Kishi
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. Higher malnutrition risk in older inpatients who are referred to the department of rehabilitation is related to increase of intramuscular adipose tissue: A prospective study. Clin Nutr 2022; 41:2087-2093. [PMID: 36067581 DOI: 10.1016/j.clnu.2022.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 08/01/2022] [Accepted: 08/14/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND & AIMS A recent cross-sectional study reported that a higher intramuscular adipose tissue of the quadriceps is related to higher malnutrition risk in older inpatients. However, a longitudinal relationship between them in older inpatients remains unclear. This study aimed to examine the relationship between the malnutrition risk at hospital admission and change in quadriceps intramuscular adipose tissue induced during the hospital stay in older inpatients. METHODS The inclusion criteria in this longitudinal study were older patients (aged ≥65 years) who were referred to the department of rehabilitation. Patients who died during a hospital stay, who underwent thigh amputation, and who had a hospital stay of <3 days or a lack of data were excluded from the study. Malnutrition risk at post-acute hospital admission was assessed using Geriatric Nutritional Risk Index (GNRI). Intramuscular adipose tissue and muscle mass of the quadriceps were assessed at hospital admission and discharge using echo intensity and muscle thickness on ultrasound images. The changes in quadriceps echo intensity and thickness were calculated by subtracting these baseline values from these values at discharge. Multiple regression analysis was performed to examine whether GNRI at admission is independently and significantly related to the quadriceps echo intensity and thickness at discharge and changes in quadriceps echo intensity and thickness. The independent variables were GNRI, age, sex, days from onset disease, disease, quadriceps echo intensity or thickness at admission, and change in quadriceps thickness. RESULTS This study included 200 inpatients (median [interquartile range] age: 83.0 [77.0-88.0], 57.0% female). GNRI at admission was significantly and independently related to quadriceps echo intensity at discharge (β = -0.136, p = 0.008) and change in quadriceps echo intensity (β = -0.177, p = 0.008). In contrast, GNRI was not significantly and independently related to quadriceps thickness at discharge (β = 0.087, p = 0.158) and change in quadriceps thickness (β = 0.133, p = 0.158). CONCLUSIONS Our results suggest that a higher malnutrition risk at post-acute hospital admission in older inpatients is related to an increase of intramuscular adipose tissue of the quadriceps during the hospital stay. Malnutrition risk at hospital admission in older inpatients is considered to be a predictor for an increase of intramuscular adipose tissue of the quadriceps during a hospital stay.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan.
| | - Masaki Kishi
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. Relationship between muscle mass and fraction of intramuscular adipose tissue of the quadriceps in older inpatients. PLoS One 2022; 17:e0263973. [PMID: 35176070 PMCID: PMC8853500 DOI: 10.1371/journal.pone.0263973] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 02/02/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In 2021, the International Society of Physical and Rehabilitation Medicine (ISPRM) special interest group on sarcopenia included the quadriceps thickness assessed with ultrasound image as an indicator of muscle mass in the diagnosis criteria of sarcopenia. If quadriceps echo intensity of older inpatients is to be a strong predictor of quadriceps thickness, muscle quality of the quadriceps may be estimated by the muscle mass when diagnosing sarcopenia using the criteria of ISPRM. OBJECTIVE This study aimed to examine the association between muscle mass and fraction of intramuscular adipose tissue of the quadriceps in older inpatients. METHODS This cross-sectional study included 399 inpatients aged ≥ 65 years. Primary outcomes were muscle mass and fraction of intramuscular adipose tissue of the quadriceps. Images were acquired using a B-mode ultrasound. Muscle mass and fraction of intramuscular adipose tissue of the quadriceps were assessed based on the muscle thickness and echo intensity, respectively. A multiple regression analysis (forced entry method) was performed to confirm whether quadriceps echo intensity was related to quadriceps thickness even after adjusting for other factors. RESULTS In the multiple regression analyses for both male and female models, quadriceps echo intensity (male: β = - 0.537, p < 0.001; female: β = - 0.438, p < 0.001), Geriatric Nutritional Risk Index (male: β = 0.236, p < 0.001; female: β = 0.213, p < 0.001), and subcutaneous fat thickness of the thigh (male: β = 0.197, p < 0.001; female: β = 0.248, p < 0.001) were independently and significantly associated with quadriceps thickness. CONCLUSIONS Our results show that there is a negative and significant association between muscle mass and fraction of intramuscular adipose tissue in older inpatients. Muscle quality of the quadriceps in older inpatients may be estimated to some extent by the muscle mass.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
- * E-mail:
| | - Masaki Kishi
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. Higher Body Mass Index in Hospitalized Older Patients Is Related to Higher Muscle Quality. J Nutr Health Aging 2022; 26:495-500. [PMID: 35587762 DOI: 10.1007/s12603-022-1785-9] [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] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This study aimed to examine the relationship between muscle mass, intramuscular adipose tissue, and body mass index (BMI) in older inpatients. DESIGN Cross-sectional study. SETTING Hospital-based study. PARTICIPANTS This study included 413 inpatients aged ≥ 65 years (186 men and 227 women). MEASUREMENTS Muscle mass and intramuscular adipose tissue of the quadriceps were assessed by measuring the muscle thickness and echo intensity on ultrasound images. To examine the relationship between quadriceps thickness and echo intensity and BMI in total participants and each sex, the Kendall rank correlation coefficient was used. Multiple regression analysis was performed to examine whether BMI was independently and significantly related to the quadriceps thickness and echo intensity, even after adjusting for other variables for total participants and each sex. The independent variables in multiple regression analyses were BMI, age, disease, days from onset disease. RESULTS The results of the correlation analyses showed that BMI was significantly related to the quadriceps thickness (total participants, τ = 0.431; men, τ = 0.491; women, τ = 0.388) and echo intensity (total participants, τ = -0.239; men, τ = -0.318; women, τ = -0.188). In the multiple regression analysis, BMI was independently and significantly associated with the quadriceps thickness (total participants, β = 0.535; men, β = 0.548; women, β = 0.519) and echo intensity (total participants, β = -0.287; men, β = -0.398; women, β = -0.210). CONCLUSION This study indicated that older inpatients with a higher BMI have greater muscle mass and less intramuscular adipose tissue of the quadriceps. These results suggested that a higher BMI in older inpatients is related to higher quadriceps muscle quality.
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Affiliation(s)
- N Akazawa
- Naoki Akazawa, Assistant Professor, Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Hoji 180, Nishihama, Yamashiro-cho, Tokushima-city, Tokushima 770-8514, Japan, Tel +81 88 602 8000, Fax +81 88 602 8146, Email
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Akazawa N, Kishi M, Hino T, Tsuji R, Tamura K, Hioka A, Moriyama H. Longitudinal relationship between intramuscular adipose tissue of the quadriceps and activities of daily living in older inpatients. J Cachexia Sarcopenia Muscle 2021; 12:2231-2237. [PMID: 34704384 PMCID: PMC8718049 DOI: 10.1002/jcsm.12842] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/27/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The longitudinal relationship between intramuscular adipose tissue of the quadriceps and activities of daily living (ADL) in older inpatients remains unclear. This study aimed to examine whether decrease of intramuscular adipose tissue of the quadriceps in older inpatients is related to the recovery of ADL than increase of muscle mass. METHODS This longitudinal study included 202 inpatients aged ≥65 years [median age: 83.0 (77.0-88.0), 56.4% female]. Recovery of ADL during hospital stay was assessed using the change in Barthel index (BI) score (i.e. BI score at discharge minus BI score at admission) and BI score at discharge. Intramuscular adipose tissue and muscle mass of the quadriceps were assessed using echo intensity and muscle thickness on ultrasound images, respectively. Higher echo intensity indicates greater intramuscular adipose tissue. Multiple regression analysis was performed to identify the factors independently associated with the change in BI score and BI score at discharge. Changes in quadriceps echo intensity and thickness and subcutaneous fat thickness of the thigh, quadriceps echo intensity and thickness, and subcutaneous fat thickness of the thigh at admission, age, sex, days from onset disease, BI score at admission, and disease were set as independent variables. RESULTS The means of the change in quadriceps echo intensity and thickness were -2.3 ± 15.7 and 0.1 ± 0.4 cm, respectively. The median of the change in BI score was 15.0 (0.0-30.0). The quadriceps echo intensity at discharge was significantly lower than at admission (P = 0.043). The quadriceps thickness (P = 0.004) and BI score at discharge (P < 0.001) were significantly higher than those at admission. Change in quadriceps echo intensity was independently and significantly associated with the change in BI score (β = -0.25, P = 0.006) and BI score at discharge (β = -0.18, P = 0.006). In contrast, change in quadriceps thickness was not independently and significantly associated with the change in BI score (β = 0.09, P = 0.244) and BI score at discharge (β = 0.06, P = 0.244). CONCLUSIONS Our study indicates that a decrease of intramuscular adipose tissue of the quadriceps is related to the recovery of ADL than an increase of muscle mass in older inpatients. Intramuscular adipose tissue of the quadriceps in older inpatients is considered to be a predictor for the recovery of ADL, and intervening for intramuscular adipose tissue may be important for improving ADL in older inpatients.
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Affiliation(s)
- Naoki Akazawa
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Masaki Kishi
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Japan
| | - Toshikazu Hino
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Japan
| | - Ryota Tsuji
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Japan
| | - Kimiyuki Tamura
- Department of Rehabilitation, Kasei Tamura Hospital, Wakayama, Japan
| | - Akemi Hioka
- Department of Physical Therapy, Faculty of Health and Welfare, Tokushima Bunri University, Tokushima, Tokushima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Japan
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