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Nishitani N, Kosaki K, Matsui M, Sugaya T, Kuro-O M, Saito C, Yamagata K, Maeda S. Association between trunk flexibility and renal flow pulsatility in middle-aged and older adults. Exp Gerontol 2023; 172:112060. [PMID: 36526099 DOI: 10.1016/j.exger.2022.112060] [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: 10/10/2022] [Revised: 11/20/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Recent clinical studies have indicated that poor trunk flexibility is associated with arterial stiffness in the aged. Arterial stiffness leads to elevated renal flow pulsatility, which accelerates age-related renal dysfunction and damages. However, data indicating the potential link between flexibility fitness and renal flow pulsatility are lacking. This study examined the cross-sectional association between trunk flexibility and renal flow pulsatility in middle-aged and older adults. METHODS A total of 175 middle-aged and older adults (aged 63 ± 9 years) were included in this study. Sit-and-reach tests (SRT) were performed to assess their trunk flexibility. Using a Doppler ultrasound, renal pulsatility index (PI) and resistive index (RI) were measured as parameters of renal flow pulsatility. RESULTS The study found that, in middle-aged and older adults, the SRT score was an independent determinant of renal PI (β = -0.134, P = 0.027) and RI (β = -0.135, P = 0.027). In the one-way analysis of covariance (ANCOVA), the renal PI and RI in the older group with a lower SRT score were found to be significantly higher than those in the middle-aged group. CONCLUSIONS Trunk flexibility is an independent determinant of renal flow pulsatility in middle-aged and older adults.
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Affiliation(s)
- Natsumi Nishitani
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Keisei Kosaki
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan.
| | - Masahiro Matsui
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan; Japan Society for the Promotion of Science, Tokyo, Japan
| | - Takeshi Sugaya
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Makoto Kuro-O
- Division of Anti-aging Medicine, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Chie Saito
- Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kunihiro Yamagata
- Faculty of Medicine, University of Tsukuba, Ibaraki, Japan; R&D Center for Smart Wellness City Policies, University of Tsukuba, Ibaraki, Japan
| | - Seiji Maeda
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan; Faculty of Sport Sciences, Waseda University, Saitama, Japan
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Kumagai H, Kaneko T, Shintake Y, Miyamoto-Mikami E, Tomita H, Fukuo M, Kawai W, Harada M, Kikuchi N, Kamiya N, Hirata K, Zempo H, Maeda S, Miyamoto N, Fuku N. Genetic polymorphisms related to muscular strength and flexibility are associated with artistic gymnastic performance in the Japanese population. Eur J Sport Sci 2022; 23:955-963. [PMID: 35593181 DOI: 10.1080/17461391.2022.2078741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to examine how genetic polymorphisms related to muscular strength and flexibility influence artistic gymnastic performance in an attempt to identify a novel polymorphism associated with flexibility. In study 1, the passive straight-leg-raise (PSLR) score and aromatase gene CYP19A1 rs936306 polymorphism, a key enzyme for estrogen biosynthesis, were assessed in 278 individuals. In study 2, athletes (281 gymnasts and 1908 other athletes) were asked about their competition level, and gymnasts were assessed using the difficulty score (D-score) for each event. Muscular strength- (ACTN3 R577X rs1815739 and ACE I/D rs4341) and flexibility-related (ESR1 rs2234693 T/C and CYP19A1 rs936306 C/T) genetic polymorphisms were analyzed. In study 1, males with the CYP19A1 CT + TT genotype showed significantly higher PSLR scores than those with the CC genotype. In study 2, male gymnasts with the R allele of ACTN3 R577X showed a correlation with the floor, rings, vault, and total D-scores. In addition, male gymnasts with the C allele of ESR1 T/C and T allele of CYP19A1 C/T polymorphisms were correlated with the pommel horse, parallel bars, horizontal bar, and total D-scores. Furthermore, genotype scores of these three polymorphisms correlated with the total D-scores and competition levels in male gymnasts. In contrast, no such associations were observed in female gymnasts. Our findings suggest that muscular strength- and flexibility-related polymorphisms play important roles in achieving high performance in male artistic gymnastics by specifically influencing the performance of events that require muscular strength and flexibility, respectively. HighlightsEstrogen-related CYP19A1 polymorphism is a novel determinant of flexibility in males.Muscular strength- and flexibility-related polymorphisms play important roles in high performance in male artistic gymnastics.Genotypes of ACTN3 R577X, ESR1 rs2234693, and CYP19A1 rs936306 may contribute to training plan optimization and event selection in artistic gymnastics.
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Affiliation(s)
- Hiroshi Kumagai
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan.,The Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | - Tomoko Kaneko
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - Yuko Shintake
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan.,Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
| | - Eri Miyamoto-Mikami
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Hiroyuki Tomita
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Makoto Fukuo
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Wataru Kawai
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Mutsumi Harada
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Naoki Kikuchi
- Department of Training Science, Nippon Sport Science University, Tokyo, Japan
| | - Nobuhiro Kamiya
- Faculty of Budo and Sport Studies, Tenri University, Nara, Japan
| | - Kosuke Hirata
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Hirofumi Zempo
- Faculty of Health and Nutrition, Tokyo Seiei College, Tokyo, Japan
| | - Seiji Maeda
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan.,Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Naokazu Miyamoto
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Noriyuki Fuku
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
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Aminuddin A, Noor Hashim MF, Mohd Zaberi NAS, Zheng Wei L, Ching Chu B, Jamaludin NA, Salamt N, Che Roos NA, Ugusman A. The Association Between Arterial Stiffness and Muscle Indices Among Healthy Subjects and Subjects With Cardiovascular Risk Factors: An Evidence-Based Review. Front Physiol 2021; 12:742338. [PMID: 34887771 PMCID: PMC8650579 DOI: 10.3389/fphys.2021.742338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/08/2021] [Indexed: 12/25/2022] Open
Abstract
Skeletal muscle is one of the major tissues in the body and is important for performing daily physical activity. Previous studies suggest that vascular dysfunction contributes to reduced skeletal muscle mass. However, the association between vascular dysfunction and muscle mass, muscle strength and muscle flexibility are less established. Therefore, the focus of this review was to investigate the association between arterial stiffness (AS) which is a marker of vascular function, and muscle indices among healthy and those with cardiovascular risk factors. Three databases were used to search for relevant studies. These keywords were used: "arterial stiffness" OR "vascular stiffness" OR "aortic stiffness" OR "pulse wave velocity" OR "carotid femoral pulse wave velocity" OR "pulse wave analysis" AND "muscle" OR "skeletal" OR "flexibility" OR "range of motion" OR "articular" OR "arthrometry" OR "strength" OR "hand strength" OR "pinch strength" OR "mass" OR "lean" OR "body composition." The criteria were; (1) original, full-text articles, (2) articles written in English language, (3) human studies involving healthy adults and/or adults with cardiovascular disease (CVD) or CVD risk factors (4) articles that reported the relationship between AS (measured as carotid-femoral pulse wave velocity or brachial-ankle pulse wave velocity) and muscle indices (measured as muscle mass, muscle flexibility and muscle strength) after adjusting for relevant confounders. The search identified 2295 articles published between 1971 and June 2021. Only 17 articles fulfilled the criteria. Two studies showed an inverse association between AS and muscle strength in healthy subjects, whereas in subjects with CVD risk factors, five out of seven studies found an inverse correlation between the two parameters. Eleven studies showed an inverse association between AS and muscle mass in subjects with CVD and CVD risk factors. The association between AS and muscle flexibility was not studied in any of the articles reviewed. In conclusion, there is an inverse correlation between muscle indices and AS in healthy adults and those with CVD or CVD risk factors. However, most of the studies were cross-sectional studies, hence the need for future prospective studies to address this issue.
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Affiliation(s)
- Amilia Aminuddin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
| | | | | | - Lee Zheng Wei
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
| | - Beh Ching Chu
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
| | - Nur Amalina Jamaludin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
| | - Norizam Salamt
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
| | - Nur Aishah Che Roos
- Faculty of Medicine and Defence Health, National Defence University of Malaysia, Kem Sungai Besi, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Malaysia
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Kumagai H, Yoshikawa T, Myoenzono K, Kosaki K, Akazawa N, Tanahashi K, Tagawa K, Zempo-Miyaki A, Maeda S. Role of High Physical Fitness in Deterioration of Male Sexual Function in Japanese Adult Men. Am J Mens Health 2020; 13:1557988319849171. [PMID: 31068078 PMCID: PMC6509982 DOI: 10.1177/1557988319849171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Male sexual function is regulated by vascular function and impaired vascular function is closely related with erectile dysfunction (ED). Vascular functions are positively influenced by physical fitness (i.e., aerobic capacity, muscle strength, and flexibility). The detailed associations between physical fitness and male sexual function remain poorly understood. The present study aimed to clarify the influence of physical fitness on male sexual function. In 177 adult men, peak oxygen consumption (VO2 peak), handgrip strength (HGS), and sit and reach were measured as indices of physical fitness. Arterial stiffness and erectile function were assessed by carotid-femoral pulse wave velocity (cfPWV) and the International Index of Erectile Function 5 (IIEF5) questionnaire, respectively. IIEF5 score was significantly correlated with VO2 peak ( rs = 0.52), HGS ( rs = 0.37), and cfPWV ( rs = -0.44); and multivariate linear regression analyses showed that VO2 peak, HGS, and cfPWV were significantly associated with IIEF5 score after considering confounders. The receiver operator characteristic curve analysis suggested that the cutoff values for predicting ED were 29.0 ml/min/kg for VO2 peak and 39.3 kg for HGS. The IIEF5 score was the highest in the subjects with the values of both VO2 peak and HGS were higher than their respective cutoff values, while the IIEF5 score was the lowest in the subjects with the values of both VO2 peak and HGS were lower than their respective cutoff values. These results suggest that the maintenance of high aerobic capacity and muscular strength may offset deterioration of male sexual function.
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Affiliation(s)
- Hiroshi Kumagai
- 1 Faculty of Health and Sport Sciences, University of Tsukuba, Japan.,2 Graduate School of Health and Sports Science, Juntendo University, Japan.,3 Japan Society for the Promotion of Science, Chiyoda-ku, Japan
| | - Toru Yoshikawa
- 4 Faculty of Sports and Health Science, Ryutsu Keizai University, Japan
| | - Kanae Myoenzono
- 5 Graduate School of Comprehensive Human Sciences, University of Tsukuba, Japan
| | - Keisei Kosaki
- 1 Faculty of Health and Sport Sciences, University of Tsukuba, Japan.,3 Japan Society for the Promotion of Science, Chiyoda-ku, Japan
| | - Nobuhiko Akazawa
- 1 Faculty of Health and Sport Sciences, University of Tsukuba, Japan.,6 Japan Institute of Sport Sciences, Japan
| | | | - Kaname Tagawa
- 5 Graduate School of Comprehensive Human Sciences, University of Tsukuba, Japan
| | | | - Seiji Maeda
- 1 Faculty of Health and Sport Sciences, University of Tsukuba, Japan
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