51
|
Liu P, Zhang Y, Sun B, Chen H, Dai J, Yan L. Risk factors for femoral neck fracture in elderly population. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2021; 46:272-277. [PMID: 33927074 PMCID: PMC10929940 DOI: 10.11817/j.issn.1672-7347.2021.190378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To explore the risk factors for femoral neck fracture in elderly population. METHODS A total of 124 elderly patients (≥60 years old) in hospital for trauma were enrolled, including 71 patients (57%) with femoral neck fracture and 53 non-femoral neck fracture patients (43%). All patients' age, gender, body mass index (BMI), bone mineral density (BMD), thigh length and average circumference were collected. Single factor analysis and multivariate logistic regression analysis were performed to explore whether the above factors were risk factors for femoral neck fracture. RESULTS Single factor analysis showed that the age, gender, BMI, BMD, thigh length, and average thigh circumference between the 2 groups were statistically different (all P<0.05), and multi-factor logistic regression analysis showed that age, gender, BMI, BMD, thigh length, and average thigh circumference were influencing factors for femoral neck fracture in elderly population (all P<0.05). CONCLUSIONS Older age, female, lower BMI index (low body weight), lower BMD (osteoporosis), longer thigh length, and lower average circumference are risk factors for femoral neck fracture in the elderly population.
Collapse
Affiliation(s)
- Pengran Liu
- Department of Orthopedics, Second Xiangya Hospital, Central South University, Changsha 410011.
| | - Yaxin Zhang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou Jiangsu 225001, China
| | - Binlei Sun
- Department of Orthopedics, Second Xiangya Hospital, Central South University, Changsha 410011
| | - Hui Chen
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou Jiangsu 225001, China
| | - Jihang Dai
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou Jiangsu 225001, China
| | - Lianqi Yan
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou Jiangsu 225001, China.
| |
Collapse
|
52
|
Accelerated decline in quadriceps area and Timed Up and Go test performance are associated with hip fracture risk in older adults with impaired kidney function. Exp Gerontol 2021; 149:111314. [PMID: 33741458 DOI: 10.1016/j.exger.2021.111314] [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: 12/31/2020] [Revised: 02/27/2021] [Accepted: 03/15/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE This study aimed to examine whether an accelerated decline in quadriceps cross-sectional area (CSA), attenuation (a surrogate of quality), and strength, as well as lower limb muscular function, are associated with hip fractures in older adults with impaired kidney function. DESIGN Prospective population-based study. SETTING Community-dwelling old population in Reykjavik, Iceland. SUBJECTS A total of 875 older adults (mean baseline age 76 years) from the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study with impaired kidney function. METHODS Quadriceps CSA and density were determined using computed tomography (CT), knee extension strength was measured with an isometric dynamometer chair, and muscular function was assessed using the Timed Up and Go (TUG) test. All muscle-related measurements were assessed twice over a mean follow-up of 5.2 years. Data on hip fracture incidence was obtained from medical records during a maximum of 8.4 years of follow-up time. RESULTS Fully adjusted cox-proportional hazard regression models showed that a faster decline in quadriceps CSA and TUG test performance were significantly associated with increased hip fracture risk (HR = 1.55, 95% CI = 1.02-2.36, and HR = 1.80, 95% CI = 1.19-2.72, respectively). A faster decrease in quadriceps density and isometric knee extension strength were not associated with fracture risk. CONCLUSIONS Accelerated decline in CT-derived quadriceps CSA and muscular function, as measured by the TUG test's performance, are predictive of hip fracture risk in older adults with impaired kidney function. TUG test is a simple measure and easily included in routine medical examinations, compared to CT scans, which seems to be useful for identifying a subgroup of individuals with high risk of fracture.
Collapse
|
53
|
Westbury LD, Syddall HE, Fuggle NR, Dennison EM, Harvey NC, Cauley JA, Shiroma EJ, Fielding RA, Newman AB, Cooper C. Relationships Between Level and Change in Sarcopenia and Other Body Composition Components and Adverse Health Outcomes: Findings from the Health, Aging, and Body Composition Study. Calcif Tissue Int 2021; 108:302-313. [PMID: 33191483 PMCID: PMC7881954 DOI: 10.1007/s00223-020-00775-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/27/2020] [Indexed: 12/20/2022]
Abstract
We investigated how baseline values and rates of decline in components of sarcopenia and other body composition parameters relate to adverse clinical outcomes using the Health, Aging, and Body Composition Study. 2689 participants aged 70-79 years were studied. Appendicular lean mass, whole body fat mass, and total hip BMD were ascertained using DXA; muscle strength by grip dynamometry; and muscle function by gait speed. Baseline values and 2-3 year conditional changes (independent of baseline) in each characteristic were examined as predictors of mortality, hospital admission, low trauma fracture, and recurrent falls in the subsequent 10-14 years using Cox regression (generalized estimating equations used for recurrent falls) with adjustment for sex, ethnicity, age, and potential confounders. Lower levels and greater declines in all parameters (excluding hip BMD level) were associated (p < 0.05) with increased rates of mortality; fully-adjusted hazard ratios per SD lower gait speed and grip strength were 1.27 (95% CI 1.19, 1.36) and 1.14 (1.07, 1.21), respectively. Risk factors of hospital admission included lower levels and greater declines in gait speed and grip strength, and greater declines in hip BMD. Lower levels and greater declines in fat mass and hip BMD were associated with low trauma fracture. Lower gait speed, higher fat mass, and both lower levels and greater declines in grip strength were related to recurrent falls. Lower baseline levels and greater declines in musculoskeletal parameters were related to adverse outcomes. Interventions to maximize peak levels in earlier life and reduce rates of age-related decline may reduce the burden of disease in this age group.
Collapse
Affiliation(s)
- Leo D Westbury
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Holly E Syddall
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Nicholas R Fuggle
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Elaine M Dennison
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- Victoria University of Wellington, Wellington, New Zealand
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Jane A Cauley
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - Eric J Shiroma
- Laboratory of Epidemiology and Population Sciences, Intramural Research Program, National Institute on Aging, Baltimore, USA
| | - Roger A Fielding
- Nutrition, Exercise Physiology, and Sarcopenia Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, USA
| | - Anne B Newman
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK.
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK.
| |
Collapse
|
54
|
Abstract
AbstractAgeing is associated with reduced muscle mass, strength, flexibility and balance, resulting in a poor quality of life (QOL). Past studies have occurred in highly controlled laboratory settings which provide strong support to determine whether similar gains can be made in community programmes. Twenty participants were enrolled in an eight-week community-based resistance training programme (mean age = 61.3 (standard error (SE) = 0.9) years); Body Mass Index = 32.0 (SE = 1.3) kg/m2). All participants completed surveys to assess outcomes associated with QOL. Given the relationship between muscle function and nerve health, nerve conduction studies (NCS) were also conducted in a separate group of participants (mean age = 64.9 (SE = 2.0) years; Body Mass Index = 32.6 (SE = 1.9) kg/m2). This community-based training programme significantly improved QOL measures in older adults (p< 0.001). Although weight loss was not the primary outcome of the study, participants reduced their body weights (p< 0.001), by primarily reducing fat mass (p= 0.007) while maintaining muscle mass. Significant improvements were observed in muscle strength (2.2%), flexibility and balance (3.2–464.2%,p⩽ 0.05 for all). Improvements were also observed in plasma glucose (p= 0.05), haemoglobin A1C (p= 0.06) and aldolase enzyme levels (p< 0.001). Scores for surveys on memory and sleep improved (p< 0.05). Improved QOL was associated with increased lean mass (r= −0.714,p= 0.002), decreased fat mass (r= −0.702,p= 0.003) and improved flexibility and balance (r= −0.627,p= 0.008). An eight-week, community-based resistance training programme significantly improved QOL in older adults. Influence on the lipid profile and NCS still needs further investigation.
Collapse
|
55
|
Wong AK, Pokhoy A, Chandrakumar A, Cvejkus RK, Zmuda JM. Short- and Long-Term Reciprocal Bone-Muscle Relationships in the Upper and Lower Extremity of Afro-Caribbean Men by DXA: A Longitudinal Analysis of the Tobago Bone Health Study. JBMR Plus 2020; 4:e10406. [PMID: 33103031 PMCID: PMC7574705 DOI: 10.1002/jbm4.10406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/30/2020] [Accepted: 08/17/2020] [Indexed: 11/26/2022] Open
Abstract
Little is known about the time course of muscle–bone effects and whether a reciprocal clinical effect of bone on muscle is present. We hypothesized that lean mass (LM) measures at the arms and legs have a stronger relationship with BMD measured within the same region than the reciprocal effect. The Tobago Bone Health Study was used to address this hypothesis, examining body composition data from total body DXA scans obtained at 0, 48‐, and 120‐month visits. A longitudinal analysis of LM, LM/height2 (LMI), and LM/BMI was conducted at the upper and lower extremities separately, in relation to BMD within the corresponding region. A cross‐lagged panel model was used to study pathways from 0 to 120 months for muscle–bone and bone–muscle effects within the same visit, and across each lagged period. Models accounted for age, height, weight, race, arthritis, prior nontraumatic fracture after age 40, number of units of alcohol consumed per week, current smoking, diagnosis of diabetes mellitus, amount of walking in the last week, grip strength, and hospitalizations. Significant models demonstrating parsimony, and meeting absolute and relative fit criteria were retained. Among 1286 Afro‐Caribbean men (mean age: 53 ± 9 years, BMI: 27.43 ± 4.23 kg/m2) with data available for all visits, LM, LMI, and LM/BMI had modest contemporaneous relationships with BMD, which dissipated with lagged time. The size of these effects was stronger at the legs than at the arms. These lagged effects were primarily mediated through indirect same time‐point muscle–bone relations rather than a true directly lagged effect. Bone density showed only a small effect on LM arm measures across lagged time, but this was impossible to tease‐out from same time‐point relations. These results suggest muscle–bone relationships are not long‐lasting at least beyond 48 months. Efforts to maintain muscle and bone strength should focus on shorter‐term interventions. More studies are needed with serial bone–muscle imaging over shorter periods. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Andy Ko Wong
- Centre of Excellence in Skeletal Health Assessment, Joint Department of Medical Imaging University Health Network Toronto Ontario Canada.,Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada.,Division of Epidemiology, Dalla Lana School of Public Health University of Toronto Toronto Ontario Canada
| | - Anthony Pokhoy
- Centre of Excellence in Skeletal Health Assessment, Joint Department of Medical Imaging University Health Network Toronto Ontario Canada.,Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada
| | - Abinaa Chandrakumar
- Centre of Excellence in Skeletal Health Assessment, Joint Department of Medical Imaging University Health Network Toronto Ontario Canada.,Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada
| | - Ryan K Cvejkus
- Department of Epidemiology Graduate School of Public Health, University of Pittsburgh Pittsburgh PA USA
| | - Joseph M Zmuda
- Department of Epidemiology Graduate School of Public Health, University of Pittsburgh Pittsburgh PA USA
| |
Collapse
|
56
|
Alajlouni D, Bliuc D, Tran T, Eisman JA, Nguyen TV, Center JR. Decline in Muscle Strength and Performance Predicts Fracture Risk in Elderly Women and Men. J Clin Endocrinol Metab 2020; 105:5868761. [PMID: 32639571 DOI: 10.1210/clinem/dgaa414] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/06/2020] [Indexed: 02/08/2023]
Abstract
CONTEXT Muscle strength and performance are associated with fractures. However, the contribution of their rate of decline is unclear. OBJECTIVE To assess the independent contribution of the rate of decline in muscle strength and performance to fracture risk. DESIGN, SETTING, AND PARTICIPANTS Community-dwelling women (n = 811) and men (n = 440) aged 60 years or older from the prospective Dubbo Osteoporosis Epidemiology Study followed from 2000 to 2018 for incident fracture. Clinical data, appendicular lean mass/height2 (ht)2, bone mineral density, quadricep strength/ht (QS), timed get-up-and-go (TGUG), 5 times repeated sit-to-stand (5xSTS), and gait speed (GS) measured biennially. Rates of decline in muscle parameters were calculated using ordinary least squares regression and fracture risk was assessed using Cox's models. MAIN OUTCOME Incident low-trauma fracture ascertained by x-ray report. RESULTS Apart from lean mass in women, all muscle parameters declined over time. Greater rates of decline in physical performance were associated with increased fracture risk in women (Hazard ratios [HRs] ranging from 2.1 (95% CI: 1.5-2.9) for GS to 2.7 (95% CI: 1.9-3.6) for 5xSTS, while in men only the decline in GS was associated with fracture risk (HR: 3.4 [95% CI: 1.8-6.3]). Baseline performance and strength were also associated with increased fracture risk in men (HRs ranging from 1.8 (95% CI: 1.1-3.0) for QS to 2.5 (95% CI: 1.5-4.1) for TGUG, but not in women. CONCLUSION Rate of decline in physical performance in both genders, and baseline strength and performance in men, contributed independently to fracture risk. Sit-to-stand and GS were the tests most consistently associated with fractures. Further studies are required to determine whether muscle strength and/or performance improve the predictive accuracy of fracture prediction models.
Collapse
Affiliation(s)
- Dima Alajlouni
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Dana Bliuc
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Thach Tran
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - John A Eisman
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
- School of Medicine Sydney, University of Notre Dame Australia, Sydney, New South Wales, Australia
| | - Tuan V Nguyen
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
- School of Biomedical Engineering, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Jacqueline R Center
- Bone Biology, Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
57
|
Kunutsor SK, Seidu S, Voutilainen A, Blom AW, Laukkanen JA. Handgrip strength-a risk indicator for future fractures in the general population: findings from a prospective study and meta-analysis of 19 prospective cohort studies. GeroScience 2020; 43:869-880. [PMID: 32812100 PMCID: PMC8110677 DOI: 10.1007/s11357-020-00251-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022] Open
Abstract
Evolving debate suggests that handgrip strength, a measure of muscular strength, might be associated with the risk of fractures; however, the evidence is conflicting. We aimed to assess the association of handgrip strength with the risk of fracture in the general population. Handgrip strength, measured using a dynamometer, was assessed at baseline in a population-based sample of 853 men and women aged 61-73 years in the Kuopio Ischemic Heart Disease prospective cohort. Hazard ratios (HRs) with 95% confidence intervals (CIs) were estimated for incident fractures. Incident fractures (hip, humeral, or wrist) (n = 159) occurred during a median follow-up of 16.7 years. Comparing extreme tertiles of handgrip strength, the age- and sex-adjusted hazard ratio (95% CI) for fractures was 0.80 (0.55-1.18). The association remained similar on further adjustment for other potential confounders: HR (95% CI) of 0.82 (0.55-1.21). In a meta-analysis of 19 population-based prospective cohort studies (including the current study) comprising 220,757 participants and 9199 fractures (including 1302 hip fractures), the fully adjusted relative risk (RR) (95% confidence interval, CI) for incident fractures was 0.70 (0.61-0.80) comparing the top versus bottom thirds of handgrip strength. The association remained significant after trim-and-fill correction for publication bias. The corresponding RR (95% CI) for hip fractures (9 studies) was 0.61 (0.54-0.70). Handgrip was only modestly associated with fracture risk in the primary analysis, which may be driven by the low event rate. Pooled prospective cohort evidence suggests that elevated handgrip strength is associated with reduced future fracture risk.
Collapse
Affiliation(s)
- Setor K Kunutsor
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK. .,Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning & Research Building (Level 1), Southmead Hospital, Bristol, BS10 5NB, UK.
| | - Samuel Seidu
- Leicester Diabetes Centre, Leicester General Hospital, Gwendolen Road, Leicester, LE5 4WP, UK.,Diabetes Research Centre, University of Leicester, Leicester General Hospital, Gwendolen Road, Leicester, LE5 4WP, UK
| | - Ari Voutilainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Ashley W Blom
- National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol, UK.,Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning & Research Building (Level 1), Southmead Hospital, Bristol, BS10 5NB, UK
| | - Jari A Laukkanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.,Institute of Clinical Medicine, Department of Medicine, University of Eastern Finland, Kuopio, Finland.,Central Finland Health Care District Hospital District, Jyväskylä, Finland
| |
Collapse
|
58
|
Messina C, Albano D, Gitto S, Tofanelli L, Bazzocchi A, Ulivieri FM, Guglielmi G, Sconfienza LM. Body composition with dual energy X-ray absorptiometry: from basics to new tools. Quant Imaging Med Surg 2020; 10:1687-1698. [PMID: 32742961 DOI: 10.21037/qims.2020.03.02] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Dual-energy X-ray absorptiometry (DXA) in nowadays considered one of the most versatile imaging techniques for the evaluation of metabolic bone disorders such as osteoporosis, sarcopenia and obesity. The advantages of DXA over other imaging techniques are the very low radiation dose, its accuracy and simplicity of use. In addition, fat mass (FM) and lean mass (LM) values by DXA shows very good accuracy compared to that of computed tomography and magnetic resonance imaging. In this review we will explain the technical working principles of body composition with DXA, together with the possible limitations and pitfalls that should be avoided in daily routine to produce high-quality DXA examinations. We will also cover the current clinical practical application of whole body DXA values, with particular emphasis on the use of LM indices in the diagnostic workup of reduced muscle mass, sarcopenia and osteosarcopenic obesity according to the most recent guidelines. The possible use of adipose indices will be considered, such as the fat mass index (FMI) or the android/gynoid ratio, as well as lipodystrophy indices and the evaluation of visceral adipose tissue (VAT). Whenever available, we will provide possible cut-off diagnostic values for each of these LM and FM indices, according to current literature and guidelines.
Collapse
Affiliation(s)
- Carmelo Messina
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milano, Italy.,Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133, Milano, Italy
| | - Domenico Albano
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milano, Italy.,Sezione di Scienze Radiologiche, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università degli Studi di Palermo, 90127, Palermo, Italy
| | - Salvatore Gitto
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133, Milano, Italy
| | - Laura Tofanelli
- Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, Via Festa del Perdono 7, 20122 Milano, Italy
| | - Alberto Bazzocchi
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, Via G. C. Pupilli 1, 40136, Bologna, Italy
| | - Fabio Massimo Ulivieri
- Bone Metabolic Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico. Medicina Nucleare, Via Francesco Sforza 35, 20122, Milano, Italy
| | - Giuseppe Guglielmi
- Department of Radiology, University of Foggia, Viale Luigi Pinto 1, 71100, Foggia, Italy.,Department of Radiology, Scientific Institute "Casa Sollievo della Sofferenza" Hospital, San Giovanni Rotondo, Foggia, Italy
| | - Luca Maria Sconfienza
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161 Milano, Italy.,Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133, Milano, Italy
| |
Collapse
|
59
|
Su Y, Lam FMH, Leung J, Cheung WH, Ho SC, Kwok T. The Predictive Value of Sarcopenia and Falls for 2-Year Major Osteoporotic Fractures in Community-Dwelling Older Adults. Calcif Tissue Int 2020; 107:151-159. [PMID: 32472390 PMCID: PMC7382674 DOI: 10.1007/s00223-020-00709-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 05/19/2020] [Indexed: 12/26/2022]
Abstract
To evaluate the associations of sarcopenia and previous falls with 2-year major osteoporotic fractures (MOFs) in community-dwelling older adults. Four thousand Chinese men and women ≥ 65 years recruited from Hong Kong communities were prospectively followed up. Measures of muscle mass, grip strength, gait speed and falls in the previous year were recorded at baseline, the 2nd year and the 4th year visit for each subject. The associations of fall history, sarcopenia and its components with 2-year MOFs were evaluated using generalized linear mixed models. Poor grip strength and poor gait speed were significantly associated with a higher 2-year MOFs risk, with an adjusted OR (95% CI) per one SD decrease of 1.48 (1.17, 1.87) and 1.17 (1.00, 1.36), respectively. Falls in the previous year was a significant predictor for 2-year MOFs risk, with an adjusted OR (95% CI) per one added fall of 1.85 (1.40, 2.44) in men and 1.26 (1.01, 1.58) in women. The adjusted OR (95% CI) of height adjusted appendicular lean muscle mass (ALM/height2) per one SD decrease and sarcopenia for 2-year MOFs risk were 1.34 (0.87, 2.06) and 1.72 (0.92, 3.21) in men, and were 0.73 (0.57, 0.93) and 0.76 (0.39, 1.47) in women, respectively (P for interaction by gender = 0.012 and 0.017, respectively). Poor sarcopenia-related physical performance and falls in the previous year were significant predictors for 2-year MOFs in community-dwelling older adults. The predictive value of ALM by DXA for near-term fracture risk is limited and different across genders.
Collapse
Affiliation(s)
- Yi Su
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Freddy M H Lam
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Jason Leung
- Jockey Club Centre for Osteoporosis Care and Control, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Wing-Hoi Cheung
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Suzanne C Ho
- Division of Epidemiology, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Timothy Kwok
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
- Jockey Club Centre for Osteoporosis Care and Control, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
| |
Collapse
|
60
|
Effects of resistance exercise in prostate cancer patients : A systematic review update as of March 2020. Wien Klin Wochenschr 2020; 132:452-463. [PMID: 32681360 PMCID: PMC7445198 DOI: 10.1007/s00508-020-01713-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/27/2020] [Indexed: 02/08/2023]
Abstract
Purpose The aim of this systematic review is to provide an update on the effects of resistance exercise (RE) in patients with prostate cancer (PCa), with special attention to the effects on sexual health. Methods A systematic search of the literature was conducted in March 2020 using the databases PubMed, MEDLINE, EMBASE, SCOPUS and the Cochrane Library. Only randomized, controlled trials published after 31 December 2016 were included in this update. Additionally, articles from current and previous reviews were utilized to provide a brief summary of the effects on sexual health. Results A total of 10 articles met the inclusion criteria, of which 5 were identified as independent studies. The remaining five articles presented additional data for studies, which have already been included. The identified studies further strengthened the evidence for positive effects on muscle strength, body composition and physical function. Positive effects on bone mineral density were apparent only when RE was combined with impact training. One article reported an improvement in fatigue and health-related quality of life. Only one study examined the effects of RE in isolation and three articles indicated positive effects of exercise on sexual health. Conclusion Recent evidence supports the use of RE in PCa patient rehabilitation as a countermeasure for treatment side effects. Further research is necessary to ascertain the optimal delivery methods and illuminate the effects on health-related quality of life (HRQOL), fatigue and sexual health.
Collapse
|
61
|
Cawthon PM, Manini T, Patel SM, Newman A, Travison T, Kiel DP, Santanasto AJ, Ensrud KE, Xue QL, Shardell M, Duchowny K, Erlandson KM, Pencina KM, Fielding RA, Magaziner J, Kwok T, Karlsson M, Ohlsson C, Mellström D, Hirani V, Ribom E, Correa-de-Araujo R, Bhasin S. Putative Cut-Points in Sarcopenia Components and Incident Adverse Health Outcomes: An SDOC Analysis. J Am Geriatr Soc 2020; 68:1429-1437. [PMID: 32633824 PMCID: PMC7508260 DOI: 10.1111/jgs.16517] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 02/24/2020] [Accepted: 04/05/2020] [Indexed: 01/06/2023]
Abstract
OBJECTIVES Analyses performed by the Sarcopenia Definitions and Outcomes Consortium (SDOC) identified cut-points in several metrics of grip strength for consideration in a definition of sarcopenia. We describe the associations between the SDOC-identified metrics of low grip strength (absolute or standardized to body size/composition); low dual-energy x-ray absorptiometry (DXA) lean mass as previously defined in the literature (appendicular lean mass [ALM]/ht2 ); and slowness (walking speed <.8 m/s) with subsequent adverse outcomes (falls, hip fractures, mobility limitation, and mortality). DESIGN Individual-level, sex-stratified pooled analysis. We calculated odds ratios (ORs) or hazard ratios (HRs) for incident falls, mobility limitation, hip fractures, and mortality. Follow-up time ranged from 1 year for falls to 8.8 ± 2.3 years for mortality. SETTING Eight prospective observational cohort studies. PARTICIPANTS A total of 13,421 community-dwelling men and 4,828 community-dwelling women. MEASUREMENTS Grip strength by hand dynamometry, gait speed, and lean mass by DXA. RESULTS Low grip strength (absolute or standardized to body size/composition) was associated with incident outcomes, usually independently of slowness, in both men and women. ORs and HRs generally ranged from 1.2 to 3.0 for those below vs above the cut-point. DXA lean mass was not consistently associated with these outcomes. When considered together, those who had both muscle weakness by absolute grip strength (<35.5 kg in men and <20 kg in women) and slowness were consistently more likely to have a fall, hip fracture, mobility limitation, or die than those without either slowness or muscle weakness. CONCLUSION Older men and women with both muscle weakness and slowness have a higher likelihood of adverse health outcomes. These results support the inclusion of grip strength and walking speed as components in a summary definition of sarcopenia. J Am Geriatr Soc 68:1429-1437, 2020.
Collapse
Affiliation(s)
- Peggy M. Cawthon
- Research Institute, California Pacific Medical Center, San Francisco, California
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California
| | | | - Sheena M. Patel
- Research Institute, California Pacific Medical Center, San Francisco, California
| | - Anne Newman
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Thomas Travison
- Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Douglas P. Kiel
- Marcus Institute for Aging Research, Hebrew SeniorLife, Department of Medicine Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Adam J. Santanasto
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kristine E. Ensrud
- Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis, Minnesota
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Qian-Li Xue
- Division of Geriatric Medicine and Gerontology and Center on Aging and Health, Johns Hopkins Medical Institute, Baltimore, Maryland
| | - Michelle Shardell
- Longitudinal Studies Section, The National Institute on Aging, Baltimore, Maryland
| | - Kate Duchowny
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California
| | | | - Karol M. Pencina
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Roger A. Fielding
- Nutrition, Exercise, Physiology, and Sarcopenia Laboratory, Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts
| | - Jay Magaziner
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland
| | - Timothy Kwok
- Department of Medicine & Therapeutics and School of Public Health, Faculty of Medicine, The Chinese University of Hong Kong, New Territories, Shatin, Hong Kong
| | - Magnus Karlsson
- Department of Clinical Sciences in Malmo, Lund University, Malmo, Sweden
| | - Claes Ohlsson
- Centre of Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Dan Mellström
- Centre of Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Vasant Hirani
- Charles Perkins Centre, University of Sydney, Sydney, Australia
| | - Eva Ribom
- Department of surgical sciences, Orthopeadic Unit, Uppsala University, Uppsala, Sweden
| | | | - Shalender Bhasin
- Boston Claude D. Pepper Older Americans Independence Center, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
62
|
Teng Y, Teng Z, Xu S, Zhang X, Liu J, Yue Q, Zhu Y, Zeng Y. The Analysis for Anemia Increasing Fracture Risk. Med Sci Monit 2020; 26:e925707. [PMID: 32583812 PMCID: PMC7333512 DOI: 10.12659/msm.925707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Fractures are a major public health problem for elderly people throughout the world. Anemia is also a common, important health problem among elderly populations. The aim of this article was to estimate the association between anemia and fracture incidence via a systematic review and meta-analysis. Material/Methods The participant, intervention, observation, and study design (PICOS) reporting guidelines were followed, and databases were searched from their inception to May 2020 to identify relevant studies. When heterogeneity was significant, and a random-effects model was used. Subgroup analysis was conducted to explore the source of heterogeneity based on sex, study design, and region. Result We found that anemia significantly increased fracture risk [relative risk (RR)=1.26, 95% confidence interval (CI)=1.14–1.39, P<0.001], specifically, hip fracture (RR=1.44, 95% CI=1.29–1.61), spine fracture (RR=1.15, 95% CI=1.08–1.23), and nonspine fracture (RR=1.42, 95% CI=1.33–1.52). Males with anemia had a 1.51-fold higher fracture risk, females had a 1.09-fold higher fracture risk. And the association was stronger in Asian (RR=1.22, 95% CI=1.07–1.40), but not in American and European study populations. Conclusions In conclusion, a significantly increased fracture risk was observed, and anemia can be a predictor of fracture risk.
Collapse
Affiliation(s)
- Yirong Teng
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| | - Zhaowei Teng
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| | - Shuanglan Xu
- Graduate School, Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Xiguang Zhang
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| | - Jie Liu
- Graduate School, Kunming Medical University, Kunming, Yunnan, China (mainland)
| | - Qiaoning Yue
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| | - Yun Zhu
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| | - Yong Zeng
- The 6th Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan, China (mainland)
| |
Collapse
|
63
|
Leslie WD, Schousboe JT, Morin SN, Martineau P, Lix LM, Johansson H, McCloskey EV, Harvey NC, Kanis JA. Loss in DXA-estimated total body lean mass but not fat mass predicts incident major osteoporotic fracture and hip fracture independently from FRAX: a registry-based cohort study. Arch Osteoporos 2020; 15:96. [PMID: 32588147 PMCID: PMC7115892 DOI: 10.1007/s11657-020-00773-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
UNLABELLED During median follow-up 6.0 years in 9622 individuals, prior loss in estimated total body lean mass (TBLM), but not total body fat mass loss (TBFM), was associated with increased fracture risk, particularly for hip fracture. INTRODUCTION Weight loss, and especially muscle loss, adversely affects skeletal health. The FRAX® tool considers baseline body mass index, but not body composition nor changes in its components over time. Our aim was to compare the independent associations between prior loss in DXA-estimated TBLM and TBFM and subsequent fracture risk. METHODS We identified women and men age 40 years or older with two DXA assessments at least 1 year apart (median interval 3.3 years). TBLM and TBFM were estimated from weight, sex, and DXA of the spine and hip. Incident fractures and deaths were ascertained from linked population-based health service data after the date of the second DXA. Hazard ratios (HRs) from Cox regression models were used to study time to fracture from prior loss in TBLM and TBFM adjusted for FRAX-related covariates. RESULTS The study population consisted of 9622 individuals (mean age 67 [SD 10] years, 95% female). We identified 692 subjects with incident major osteoporotic fracture [MOF] and 194 with hip fracture. Mean TBLM loss was significantly greater in those with incident MOF and hip fracture (P < 0.001) while TBFM loss was only significantly greater in those with incident hip fracture (P < 0.001). Each SD greater TBLM loss was associated with 10-13% increased MOF risk and 29-38% increased hip fracture risk, adjusted for TBFM loss and other covariates. Prior TBFM loss was not associated with fractures when adjusted for TBLM loss. CONCLUSIONS Prior loss in total body lean mass, but not in fat mass, is associated with increased fracture risk, particularly hip fracture, independent of other risk factors. This is consistent with the hypothesis that muscle loss (sarcopenia) adversely impacts skeletal health and fracture risk.
Collapse
Affiliation(s)
| | - John T. Schousboe
- Park Nicollet Clinic & HealthPartners Institute, Minneapolis, US,University of Minnesota, Minneapolis, US
| | | | | | | | - Helena Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, UK,Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| | - Eugene V. McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, UK,Centre for Integrated Research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| | - Nicholas C. Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK,NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - John A. Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield Medical School, UK,Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
| |
Collapse
|
64
|
Abstract
PURPOSE OF REVIEW Identifying individuals at high fracture risk can be used to target those likely to derive the greatest benefit from treatment. This narrative review examines recent developments in using specific risk factors used to assess fracture risk, with a focus on publications in the last 3 years. RECENT FINDINGS There is expanding evidence for the recognition of individual clinical risk factors and clinical use of composite scores in the general population. Unfortunately, enthusiasm is dampened by three pragmatic randomized trials that raise questions about the effectiveness of widespread population screening using clinical fracture prediction tools given suboptimal participation and adherence. There have been refinements in risk assessment in special populations: men, patients with diabetes, and secondary causes of osteoporosis. New evidence supports the value of vertebral fracture assessment (VFA), high resolution peripheral quantitative CT (HR-pQCT), opportunistic screening using CT, skeletal strength assessment with finite element analysis (FEA), and trabecular bone score (TBS). The last 3 years have seen important developments in the area of fracture risk assessment, both in the research setting and translation to clinical practice. The next challenge will be incorporating these advances into routine work flows that can improve the identification of high risk individuals at the population level and meaningfully impact the ongoing crisis in osteoporosis management.
Collapse
Affiliation(s)
- William D Leslie
- Departments of Medicine and Radiology, University of Manitoba, 409 Tache Avenue, Winnipeg, Manitoba, R2H 2A6, Canada.
| | - Suzanne N Morin
- Department of Medicine, McGill University- McGill University Health Center, Montreal, Quebec, Canada
| |
Collapse
|
65
|
Vala CH, Kärrholm J, Kanis JA, Johansson H, Sten S, Sundh V, Karlsson M, Lorentzon M, Mellström D. Risk for hip fracture before and after total knee replacement in Sweden. Osteoporos Int 2020; 31:887-895. [PMID: 31832694 PMCID: PMC7170830 DOI: 10.1007/s00198-019-05241-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/19/2019] [Indexed: 11/29/2022]
Abstract
UNLABELLED We studied the risk for hip fracture before and after total knee replacement (TKR) in the entire population in Sweden. Women and men had a low risk for hip fracture before TKR but an increased risk the first year after TKR. PURPOSE It is known that osteoarthritis is associated with high bone mass. We therefore studied the risk of hip fracture before and after total knee replacement (TKR), risk of different hip fracture types, and risk subdivided in genders and age groups. METHODS We followed the total Swedish population born between 1902 and 1952 (n = 4,258,934) during the period 1987-2002 and identified all patients with TKR due to primary OA (n = 39,291), and all patients with hip fracture (n = 195,860) in the Swedish National Inpatient Register. The risk time analyses were based on Poisson regression models. RESULTS The hazard ratio (HR) for hip fracture the last year before TKR was 0.86 (95% CI 0.74 to 1.00) and the first year after 1.26 (95% CI 1.11 to 1.42) compared to individuals without TKR. The HR for femoral neck fracture 0-10 years after TKR was 0.95 (95% CI 0.89 to 1.01) and for trochanteric fracture was 1.13 (95% CI 1.06 to 1.21). The HR for hip fracture in the age group 50-74 was 1.28 (95% CI 1.14 to 1.43) and in the age group 75-90 years was 0.99 (95% CI 0.94 to 1.04) 0-10 years after TKR, compared to individuals without TKR. CONCLUSION Individuals had a low risk for hip fracture before TKR but an increased risk the first year after TKR. The risk in individuals below age 75 years and for trochanteric fractures was increased after TKR. Possible explanations include changed knee kinematics after a TKR, physical activity level, fall risk, and other unknown factors.
Collapse
Affiliation(s)
- C H Vala
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, 413 45, Göteborg, Sweden.
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital, 431 80, Mölndal, Sweden.
| | - J Kärrholm
- Department of Orthopedic Surgery, Sahlgrenska Academy, University of Gothenburg, 431 80, Mölndal, Sweden
| | - J A Kanis
- Centre for Metabolic Bone Disease, Medical School, University of Sheffield, S10 2RX, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, 3000, Australia
| | - H Johansson
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, 413 45, Göteborg, Sweden
| | - S Sten
- Department of Archaeology and Ancient History, Uppsala University- Campus Gotland, 621 57, Visby, Sweden
| | - V Sundh
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, 413 45, Göteborg, Sweden
| | - M Karlsson
- Department of Orthopedics and Clinical Sciences, Lund University, Skåne University Hospital, 205 02, Malmö, Sweden
| | - M Lorentzon
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, 413 45, Göteborg, Sweden
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital, 431 80, Mölndal, Sweden
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, VIC, 3000, Australia
- Center for Bone and Arthritis Research (CBAR), Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - D Mellström
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Academy, University of Gothenburg, 413 45, Göteborg, Sweden
- Region Västra Götaland, Geriatric Medicine Clinic, Sahlgrenska University Hospital, 431 80, Mölndal, Sweden
- Center for Bone and Arthritis Research (CBAR), Sahlgrenska Academy, University of Gothenburg, 413 45, Gothenburg, Sweden
| |
Collapse
|
66
|
Pasco JA, Stuart AL, Holloway-Kew KL, Tembo MC, Sui SX, Anderson KB, Hyde NK, Williams LJ, Kotowicz MA. Lower-limb muscle strength: normative data from an observational population-based study. BMC Musculoskelet Disord 2020; 21:89. [PMID: 32035479 PMCID: PMC7007641 DOI: 10.1186/s12891-020-3098-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/28/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The extent of muscle deterioration associated with ageing or disease can be quantified by comparison with appropriate reference data. The objective of this study is to present normative data for lower-limb muscle strength and quality for 573 males and 923 females aged 20-97 yr participating in the Geelong Osteoporosis Study in southeastern Australia. METHODS In this cross-sectional study, measures of muscle strength for hip flexors and hip abductors were obtained using a Nicholas manual muscle tester, a hand-held dynamometer (HHD; kg). Leg lean mass was measured by dual energy x-ray absorptiometry (DXA; kg), and muscle quality calculated as strength/mass (N/kg). RESULTS For both sexes, muscle strength and quality decreased with advancing age. Age explained 12.9-25.3% of the variance in muscle strength in males, and 20.8-24.6% in females; age explained less of the variance in muscle quality. Means and standard deviations for muscle strength and quality for each muscle group are reported by age-decade for each sex, and cutpoints equivalent to T-scores of - 2.0 and - 1.0 were derived using data from young males (n = 89) and females (n = 148) aged 20-39 years. CONCLUSIONS These data will be useful for quantifying the extent of dynapenia and poor muscle quality among adults in the general population in the face of frailty, sarcopenia and other age-related muscle dysfunction.
Collapse
Affiliation(s)
- Julie A Pasco
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia. .,Department of Medicine - Western Health, The University of Melbourne, St Albans, Australia. .,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia. .,Barwon Health, Geelong, Australia.
| | - Amanda L Stuart
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | | | - Monica C Tembo
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | - Sophia X Sui
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | - Kara B Anderson
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | - Natalie K Hyde
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | - Lana J Williams
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia
| | - Mark A Kotowicz
- School of Medicine, Deakin University, Geelong, VIC, 3220, Australia.,Department of Medicine - Western Health, The University of Melbourne, St Albans, Australia.,Barwon Health, Geelong, Australia
| |
Collapse
|
67
|
Søgaard AJ, Magnus JH, Bjørnerem Å, Holvik K, Ranhoff AH, Emaus N, Meyer HE, Strand BH. Grip strength in men and women aged 50-79 years is associated with non-vertebral osteoporotic fracture during 15 years follow-up: The Tromsø Study 1994-1995. Osteoporos Int 2020; 31:131-140. [PMID: 31650188 DOI: 10.1007/s00198-019-05191-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 10/07/2019] [Indexed: 01/16/2023]
Abstract
UNLABELLED In 50-79-year-olds who participated in the Tromsø Study (1994-1995), the risk of non-vertebral osteoporotic fractures during 15 years follow-up increased by 22% in men and 9% in women per 1 SD lower grip strength. The strongest association was observed in men aged 50-64 years. INTRODUCTION We aimed to explore whether low grip strength was associated with increased risk of non-vertebral osteoporotic fracture in the population-based Tromsø Study 1994-1995. METHODS Grip strength (bar) was measured by a Martin Vigorimeter and fractures were retrieved from the X-ray archives at the University Hospital of North Norway between 1994 and 2010. At baseline, weight and height were measured, whereas information on the other covariates were obtained through self-reported questionnaires. Cox regression was used to estimate the hazard ratio (HR) of fracture in age- and gender-specific quintiles of grip-strength, and per 1 SD lower grip strength. Similar analyses were done solely for hip fractures. Adjustments were made for age, height, body mass index (BMI), marital status, education, smoking, physical activity, use of alcohol, self-perceived health, and self-reported diseases. RESULTS In 2891 men and 4002 women aged 50-79 years, 1099 non-vertebral osteoporotic fractures-including 393 hip fractures-were sustained during the median 15 years follow-up. Risk of non-vertebral osteoporotic fracture increased with declining grip strength: hazard ratios per SD decline was 1.22 (95% CI 1.05-1.43) in men and 1.09 (95% CI 1.01-1.18) in women. HR for fracture in lower vs. upper quintile was 1.58 (95% CI 1.02-2.45) in men and 1.28 (95% CI 1.03-1.59) in women. The association was most pronounced in men aged 50-64 years with HR = 3.39 (95% CI 1.76-6.53) in the lower compared to the upper quintile. CONCLUSIONS The risk of non-vertebral osteoporotic fracture increased with declining grip-strength in both genders, particularly in men aged 50-64 years.
Collapse
Affiliation(s)
- A J Søgaard
- Division of Mental and Physical Health, Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway.
| | - J H Magnus
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Å Bjørnerem
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Department of Obstetrics and Gynaecology, University Hospital of North Norway, Tromsø, Norway
| | - K Holvik
- Division of Mental and Physical Health, Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway
| | - A H Ranhoff
- Division of Mental and Physical Health, Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - N Emaus
- Department of Health and Care Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - H E Meyer
- Division of Mental and Physical Health, Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway
- Institute of Health and Society, University of Oslo, Oslo, Norway
| | - B H Strand
- Division of Mental and Physical Health, Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, PO Box 222 Skøyen, N-0213, Oslo, Norway
- Institute of Health and Society, University of Oslo, Oslo, Norway
- Norwegian National Advisory Unit on Aging and Health, Vestfold Hospital Trust, Tønsberg, Norway
| |
Collapse
|
68
|
Jeong SM, Shin DW, Han K, Jung JH, Chun S, Jung HW, Son KY. Timed up-and-go test is a useful predictor of fracture incidence. Bone 2019; 127:474-481. [PMID: 31323429 DOI: 10.1016/j.bone.2019.07.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE The timed up-and-go (TUG) test is a validated screening tool to assess fall risk. This study evaluated the association between the TUG test and future fractures, which are a tangible clinical complication of falling. METHODS We included 1,070,320 participants who participated in the National Screening Program for Transitional Ages for Koreans aged 66 years old from 2009 to 2014. Among them, 355,753 women underwent dual-energy X-ray absorptiometry. TUG times were classified as <10 s or ≥10 s. The incidence of fractures, including vertebral, hip, and other sites, was determined using claims data from the National Health Information database. RESULTS During the mean follow-up period of 4.4 ± 1.8 years, participants with slow TUG times had a significantly increased risk of fractures compared with those who had normal TUG times: any fractures (adjusted hazard ratio [aHR] = 1.08, 95% confidence interval [CI] = 1.06-1.10), vertebral fracture (aHR = 1.14, 95% CI = 1.11-1.16), hip fracture (aHR = 1.21, 95% CI = 1.13-1.29), and other fractures (upper arm, forearm, and lower leg; aHR = 1.02, 95% CI = 1.00-1.05). Among women with bone mineral density (BMD) results, slow TUG performance was associated with an increased risk of fracture independent of BMD. CONCLUSIONS The TUG test, as an indicator of physical performance, can provide information about future fracture risk above that provided by BMD. Conducting the TUG test to assess fracture risk should be considered to improve fracture risk assessment and propose interventions to improve physical performance, thereby reducing fracture risk.
Collapse
Affiliation(s)
- Su-Min Jeong
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan School of Medicine, Seoul, Republic of Korea; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Dong Wook Shin
- Department of Family Medicine & Supportive Care Center, Samsung Medical Center, Sungkyunkwan School of Medicine, Seoul, Republic of Korea.
| | - Kyungdo Han
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin Hyung Jung
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sohyun Chun
- International Healthcare Center, Samsung Medical Center, Seoul, Republic of Korea
| | - Hee-Won Jung
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea; Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Ki Young Son
- Department of Family Medicine, Asan Medical Center, Seoul, Republic of Korea
| |
Collapse
|
69
|
Secondary fracture prevention: Drug treatment, fall prevention and nutrition requirements. Best Pract Res Clin Rheumatol 2019; 33:290-300. [PMID: 31547984 DOI: 10.1016/j.berh.2019.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In view of the high imminent risk for subsequent fractures, evaluation as early as possible after the fracture will result in early decisions about drug treatment, fall prevention and nutritional supplements. Drug treatment includes anti-resorptive and bone forming agents. Anti-resorptive therapy with broad spectrum fracture prevention and early anti-fracture effects are the first choice. In patients with multiple or severe VFs, the bone forming agent teriparatide should be considered. Adequate calcium and vitamin D are needed in all patients, together with appropriate nutrition, including adequate protein intake.
Collapse
|
70
|
Abey-Nesbit R, Schluter PJ, Wilkinson T, Thwaites JH, Berry SD, Jamieson HA. Risk factors for hip fracture in New Zealand older adults seeking home care services: a national population cross-sectional study. BMC Geriatr 2019; 19:93. [PMID: 30909862 PMCID: PMC6434861 DOI: 10.1186/s12877-019-1107-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Accepted: 03/18/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hip fractures are a common injury in older people. Many studies worldwide have identified various risk factors for hip fracture. However, risk factors for hip fracture have not been studied extensively in New Zealand. The interRAI home care assessment consists of 236 health questions and some of these may be related to hip fracture risk. METHODS The cohort consisted of 45,046 home care clients aged 65 years and older, in New Zealand. Assessments ranged from September 2012 to October 2015. Hip fracture diagnosis was identified by linking ICD (International Classification of Diseases) codes from hospital admissions data (September 2012 to December 2015) to the interRAI home care data. Unadjusted and adjusted competing risk regressions, using the Fine and Gray method were used to identify risk factors for hip fracture. Mortality was the competing event. RESULTS The cohort consisted of 61% female with a mean age of 82.7 years. A total of 3010 (6.7%) of the cohort sustained a hip fracture after assessment. After adjusting for sociodemographic and potentially confounding variables falls (SHR (Subhazard Ratio) = 1.17, 95% CI (Confidence interval): 1.05-1.31), previous hip fracture (SHR = 4.16, 95% CI: 2.93-5.89), female gender (SHR = 1.38, 95% CI: 1.22-1.55), underweight (SHR = 1.67, 95% CI = 1.39-2.02), tobacco use (SHR = 1.56, 95% CI = 1.25-1.96), Parkinson's disease (SHR = 1.45, 95% CI: 1.14-1.84), and Wandering (SHR = 1.36, 95% CI: 1.07-1.72) were identified as risk factors for hip fracture. Shortness of breath (SHR = 0.80, 95% CI: 0.71-0.90), was identified as being protective against hip fracture risk. Males and females had different significant risk factors. CONCLUSIONS Risk factors for hip fracture similar to international work on risk factors for hip fracture, can be identified using the New Zealand version of the interRAI home care assessment.
Collapse
Affiliation(s)
- Rebecca Abey-Nesbit
- Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand.
| | - Philip J Schluter
- School of Health Sciences, University of Canterbury-Te Whare Wānanga o Waitaha, Christchurch, New Zealand.,School of Clinical Medicine - Primary Care Clinical Unit, The University of Queensland, Brisbane, Australia
| | - Tim Wilkinson
- Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand
| | | | - Sarah D Berry
- Harvard Medical School, Boston, MA, USA.,Division of Geriatric Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Hebrew Senior Life, Boston, MA, USA
| | - Hamish A Jamieson
- Christchurch School of Medicine and Health Sciences, University of Otago, Christchurch, New Zealand
| |
Collapse
|
71
|
Harvey NC, Kanis JA, Liu E, Johansson H, Lorentzon M, McCloskey E. Appendicular lean mass and fracture risk assessment: implications for FRAX® and sarcopenia. Osteoporos Int 2019; 30:537-539. [PMID: 30815717 PMCID: PMC6430419 DOI: 10.1007/s00198-019-04904-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/14/2019] [Indexed: 11/25/2022]
Abstract
The vast majority of current sarcopenia definitions use DXA-derived appendicular lean mass (DXA ALM) as an approximation of muscle mass. However, there is increasing evidence that ALM is poorly predictive of incident fractures. In this editorial, we describe findings from several cohorts suggesting that DXA ALM gives only limited information on the risk of incident fracture, and that in the US MrOS, WHI and Health ABC cohorts, accounting for femoral neck bone mineral density may entirely remove ALM-fracture associations. These observations raise important questions about the role of DXA ALM both in sarcopenia definitions and as a potential input variable for FRAX. We conclude that DXA ALM is unlikely to be a useful addition to the FRAX tool, but that other means of estimating muscle mass, such as those derived from creatine dilution or peripheral quantitative CT, might offer more value for fracture risk assessment.
Collapse
Affiliation(s)
- N C Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, SO16 6YD, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Tremona Road, Southampton, UK.
| | - J A Kanis
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - E Liu
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - H Johansson
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Mary McKillop Health Institute, Australian Catholic University, Melbourne, Australia
| | - M Lorentzon
- Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Geriatric Medicine, Sahlgrenska University Hospital, Mölndal, Sweden
| | - E McCloskey
- Centre for Metabolic Bone Diseases, University of Sheffield, Sheffield, UK
- Centre for Integrated research in Musculoskeletal Ageing (CIMA), Mellanby Centre for Bone Research, University of Sheffield, Sheffield, UK
| |
Collapse
|
72
|
Locquet M, Beaudart C, Reginster JY, Bruyère O. Association Between the Decline in Muscle Health and the Decline in Bone Health in Older Individuals from the SarcoPhAge Cohort. Calcif Tissue Int 2019; 104:273-284. [PMID: 30511152 DOI: 10.1007/s00223-018-0503-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 11/27/2018] [Indexed: 01/29/2023]
Abstract
The longitudinal relationship between bone health and muscle health is scarcely explored. We aimed to explore the relationship between bone decline and muscle decline over 1 year in older individuals. We used data from the SarcoPhAge cohort, which aims to identify the consequences of sarcopenia. In this way, this study also highlights the yearly changes in muscle mass (by dual-energy absorptiometry), muscle weakness (by grip strength), and/or physical performance (by the short physical performance battery test). Measurements of areal bone mineral density (aBMD), enabling the diagnosis of osteoporosis, and bone microarchitecture (by means of the trabecular bone score) were also performed each year. A 1-year clinically relevant decline in bone and muscle health components was evidenced using the Edwards-Nunnally index. Among the 232 participants with complete data (75.5 ± 5.4 years, 57.8% women), we observed an association between a clinically relevant decline in the skeletal muscle mass index (SMI) and a decrease in aBMD (adjusted OR = 2.12 [1.14-2.51] for the spine, 2.42 [1.10-5.34] for the hip and 2.12 [1.04-5.81] for the neck), as well as a significant association between SMI and deterioration of the skeletal microarchitecture (aOR = 3.99 [2.07-7.70]). A clinically relevant decline in muscle strength was associated with a decrease in spine aBMD (aOR = 2.93 [1.21-7.12]) and hip aBMD (aOR = 3.42 [1.37-7.64]) only. The decline in muscle performance was related to the decline in bone microarchitecture only (aOR = 2.52 [1.23-5.17]). Individuals with incident sarcopenia had an approximately fivefold higher risk of concomitantly developing osteoporosis. A dynamic relationship between impaired muscle and bone health was observed, with an obvious association between the concomitant incidences of osteoporosis and sarcopenia.
Collapse
Affiliation(s)
- Médéa Locquet
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health Sciences, Epidemiology and Health Economics, University of Liège, CHU of Liège, B.23, Avenue Hippocrate, 13, 4000, Liège, Belgium.
| | - Charlotte Beaudart
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health Sciences, Epidemiology and Health Economics, University of Liège, CHU of Liège, B.23, Avenue Hippocrate, 13, 4000, Liège, Belgium
| | - Jean-Yves Reginster
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health Sciences, Epidemiology and Health Economics, University of Liège, CHU of Liège, B.23, Avenue Hippocrate, 13, 4000, Liège, Belgium
- Chair for Biomarkers of Osteoporosis, Biochemistry Department, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Olivier Bruyère
- World Health Organization Collaborating Center for the Public Health Aspects of Musculoskeletal Health and Aging, Department of Public Health Sciences, Epidemiology and Health Economics, University of Liège, CHU of Liège, B.23, Avenue Hippocrate, 13, 4000, Liège, Belgium
| |
Collapse
|
73
|
Age-related bone loss and sarcopenia in men. Maturitas 2019; 122:51-56. [PMID: 30797530 DOI: 10.1016/j.maturitas.2019.01.006] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 12/20/2022]
Abstract
Bone and muscle are required for mobility but they also have endocrine and metabolic functions. In ageing as well as in many chronic diseases, bone loss and muscle atrophy occur simultaneously, leading to concomitant osteoporosis and sarcopenia. This occurs in both genders but compared with postmenopausal women, men appear to be better protected against age-related bone and muscle decay. Sex steroids (both androgens like testosterone and oestrogens like estradiol) are mainly responsible for musculoskeletal sexual dimorphism. They stimulate peak bone and muscle mass accretion during puberty and midlife, and prevent subsequent loss in ageing men but not post-menopausal women. Still, recent studies have highlighted the importance of intrinsic ageing mechanisms such as cellular senescence and oxidative stress in both genders. Sarcopenia may predispose to dysmobility, frailty, falls and fractures, but whether so-called osteosarcopenia qualifies as a distinct entity remains debated. Although randomized clinical trials in male osteoporosis are smaller and therefore underpowered for some outcomes like hip fractures, the available evidence suggests that the clinical diagnostic and therapeutic approach to male osteoporosis is largely similar to that in postmenopausal women. There is a clear unmet medical need for effective and safe anabolic drugs to rebuild the ageing skeleton, muscle, and preferably both tissues simultaneously. The Wnt/sclerostin and myostatin/activin receptor signalling pathways appear particularly promising in this regard. In this narrative review, we aim to provide an overview of our current understanding of the pathophysiology and treatment of male osteoporosis and sarcopenia, and interactions between these two diseases.
Collapse
|
74
|
Elhakeem A, Hartley A, Luo Y, Goertzen AL, Hannam K, Clark EM, Leslie WD, Tobias JH. Lean mass and lower limb muscle function in relation to hip strength, geometry and fracture risk indices in community-dwelling older women. Osteoporos Int 2019; 30:211-220. [PMID: 30552442 PMCID: PMC6331743 DOI: 10.1007/s00198-018-4795-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/29/2018] [Indexed: 12/11/2022]
Abstract
UNLABELLED In a population-based sample of British women aged over 70 years old, lean mass and peak lower limb muscle force were both independently associated with hip strength and fracture risk indices, thereby suggesting a potential benefit of promoting leg muscle strengthening exercise for the prevention of hip fractures in postmenopausal women. INTRODUCTION To investigate cross-sectional associations of lean mass and physical performance, including lower limb muscle function, with hip strength, geometry and fracture risk indices (FRIs) in postmenopausal women. METHODS Data were from the Cohort of Skeletal Health in Bristol and Avon. Total hip (TH) and femoral neck (FN) bone mineral density (BMD), hip geometry and total body lean mass (TBLM) were assessed by dual x-ray absorptiometry (DXA). Finite element analysis of hip DXA was used to derive FN, intertrochanteric and subtrochanteric FRIs. Grip strength, gait speed and chair rise time were measured objectively. Lower limb peak muscle force and muscle power were assessed by jumping mechanography. RESULTS In total, 241 women were included (age = 76.4; SD = 2.6 years). After adjustment for age, height, weight/fat mass and comorbidities, TBLM was positively associated with hip BMD (βTH BMD = 0.36, P ≤ 0.001; βFN BMD = 0.26, P = 0.01) and cross-section moment of inertia (0.24, P ≤ 0.001) and inversely associated with FN FRI (- 0.21, P = 0.03) and intertrochanteric FRI (- 0.11, P = 0.05) (estimates represent SD difference in bone measures per SD difference in TBLM). Lower limb peak muscle force was positively associated with hip BMD (βTH BMD = 0.28, P ≤ 0.001; βFN BMD = 0.23, P = 0.008) and inversely associated with FN FRI (- 0.17, P = 0.04) and subtrochanteric FRI (- 0.18, P = 0.04). Associations of grip strength, gait speed, chair rise time and peak muscle power with hip parameters were close to the null. CONCLUSIONS Lean mass and lower limb peak muscle force were associated with hip BMD and geometrical FRIs in postmenopausal women. Leg muscle strengthening exercises may therefore help prevent hip fractures in older women.
Collapse
Affiliation(s)
- A Elhakeem
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
| | - A Hartley
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Y Luo
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, Canada
| | - A L Goertzen
- Department of Radiology, University of Manitoba, Winnipeg, Canada
| | - K Hannam
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - E M Clark
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - W D Leslie
- Department of Radiology, University of Manitoba, Winnipeg, Canada
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
| | - J H Tobias
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| |
Collapse
|