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Leban B, Fabbri D, Lecca LI, Uras M, Monticone M, Porta M, Pau M, Campagna M. Characterization of hand forces exerted during non-powered hospital bed pushing and pulling tasks. INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND ERGONOMICS 2021; 28:991-999. [PMID: 33249998 DOI: 10.1080/10803548.2020.1857081] [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: 10/22/2022]
Abstract
Accurate assessment of biomechanical risk associated with pushing/pulling tasks represents a challenging issue, especially in the health system where personnel are often required to maneuver beds and carts. Most studies in this field have been carried out in the laboratory, while few data have been collected under actual working conditions. This study aims to characterize the forces exerted during non-powered hospital bed maneuvering. Twenty participants were required to move a bed (equipped with a customized handlebar to measure exerted forces) along an actual hospital path including straight, turn and maneuver phases. The results show that higher forces are associated with the initial phase (peak and mean values 222 and 68 N) while the straight, turn and maneuvering phases required similar (lower) efforts. The combined effect of left, right and transversal forces suggests that the trunk of the operator might experience axial rotation, thus calling for further investigations of this aspect.
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Affiliation(s)
- Bruno Leban
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Italy
| | - D Fabbri
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - L I Lecca
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - M Uras
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - M Monticone
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - M Porta
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Italy
| | - M Pau
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Italy
| | - M Campagna
- Department of Medical Sciences and Public Health, University of Cagliari, Italy
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Marini E, Buffa R, Gobbo LA, Salinas-Escudero G, Stagi S, García-Peña C, Sánchez-García S, Carrillo-Vega MF. Interpopulation Similarity of Sex and Age-Related Body Composition Variations Among Older Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17176047. [PMID: 32825260 PMCID: PMC7503589 DOI: 10.3390/ijerph17176047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/12/2020] [Accepted: 08/16/2020] [Indexed: 02/03/2023]
Abstract
The aim of the study was to analyze sex and age-related body composition variations among older adults from the Brazilian, Italian, and Mexican population. A cross-sectional analysis was conducted in 1103 community-dwelling older adults (634 women and 469 men), aged 60 to 89 years, living in Brazil (n = 176), Italy (n = 554), and Mexico (n = 373). Anthropometric measurements were taken, BMI was calculated, and impedance measurements were obtained (resistance, R, reactance, Xc). Specific bioelectrical impedance vector analysis (specific BIVA) was applied, with the specific vector defined by impedance, or vector length (Z = (Rsp2 + Xcsp)0.5), and phase angle (PA = arctan Xc/R 180/π). Population, sex, and age differences in anthropometric and bioelectrical variables were evaluated by means of a two way ANOVA. The mean bioelectrical vectors were graphed by confidence ellipses and statistically compared by the Hotelling's T2 test. The three population groups showed differences in body mass and composition (p < 0.001): the Brazilian sample was characterized by greater body dimensions, longer vectors (higher relative content of fat mass), and lower phase angles (lower skeletal muscle mass). Men were taller and heavier than women (p < 0.001) but had a similar BMI (p = 0.102). They also had higher phase angle (higher skeletal muscle mass) (p < 0.001) and lower vector length (lower %FM) (p < 0.001). In the three population groups, the oldest individuals showed lower anthropometric and phase angle values with respect to the youngest ones (p < 0.001), whereas the vector length did not change significantly with age (p = 0.665). Despite the differences between sexes and among populations, the trend of age-related variations was similar in the Brazilian, Italian, and Mexican older adults.
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Affiliation(s)
- Elisabetta Marini
- Department of Life and Environmental Science, Neuroscience and Anthropological Section, University of Cagliari, Cittadella Universitaria, Monserrato, 09042 Cagliari, Italy; (E.M.); (R.B.); (S.S.)
| | - Roberto Buffa
- Department of Life and Environmental Science, Neuroscience and Anthropological Section, University of Cagliari, Cittadella Universitaria, Monserrato, 09042 Cagliari, Italy; (E.M.); (R.B.); (S.S.)
| | - Luis Alberto Gobbo
- Department of Physical Education, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, São Paulo 19060-900, Brazil;
| | - Guillermo Salinas-Escudero
- Center for Economic and Social Studies in Health, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico;
| | - Silvia Stagi
- Department of Life and Environmental Science, Neuroscience and Anthropological Section, University of Cagliari, Cittadella Universitaria, Monserrato, 09042 Cagliari, Italy; (E.M.); (R.B.); (S.S.)
| | - Carmen García-Peña
- Research Department, Instituto Nacional de Geriatría, Mexico City 10200, Mexico;
| | - Sergio Sánchez-García
- Epidemiology and Health Services Research Unit, Aging Area, IMSS, Mexico City 06720, Mexico;
| | - María Fernanda Carrillo-Vega
- Geriatric Epidemiology Unit, Research Department, National Institute of Geriatrics, Instituto Nacional de Geriatría, Mexico City 10200, Mexico
- Correspondence:
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Cavedon V, Milanese C, Marchi A, Zancanaro C. Different amount of training affects body composition and performance in High-Intensity Functional Training participants. PLoS One 2020; 15:e0237887. [PMID: 32817652 PMCID: PMC7440620 DOI: 10.1371/journal.pone.0237887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/04/2020] [Indexed: 01/10/2023] Open
Abstract
The effects of High-Intensity Functional Training (HIFT) on body composition and the relationship of the latter with performance are not well defined. In this work we investigated, by means of Dual-energy X-ray Absorptiometry, the relative proportions of fat-, lean soft tissue-, and mineral mass in CrossFit® (CF, a popular mode of HIFT) participants (n = 24; age, 28.2 ± 3.39 y; BMI, 25.3 ± 2.04 kg/m2) with at least 1 year of CF training experience and weekly amount of training > 10 h/w (n = 13; Higher Training, HT) or < 10 h/w (n = 11; Lower Training, LT) as well as age- matched and BMI-matched physically active controls (CHT, CLT). Performance was assessed in the “Fran” workout. Data were analyzed by one-way or repeated measures ANOVA where needed. Association between variables was assessed with the Pearson’s correlation coefficient r. Partial correlation was used where needed. Results showed that HT performed better than LT in the “Fran” (P < 0.001) and they had higher whole-body bone mineral density (P = 0.026) and higher lean soft mass (P = 0.002), and borderline lower percent fat mass (P = 0.050). The main difference between CF participants (HT, LT) and their respective controls (CHT, CLT) was a lower adiposity in the former. In CF participants, performance positively correlated with appendicular lean soft tissue mass (P = 0.030). It can be concluded that, in CF participants, a higher amount of weekly training improves most notably lean body mass and increases performance in association with increased skeletal muscle mass. CF participation is especially effective in reducing fat mass vs. age- and BMI-matched physically active controls.
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Affiliation(s)
- Valentina Cavedon
- Laboratory of Anthropometry and Body Composition, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Chiara Milanese
- Laboratory of Anthropometry and Body Composition, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
- * E-mail:
| | - Alessandro Marchi
- Laboratory of Anthropometry and Body Composition, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Carlo Zancanaro
- Laboratory of Anthropometry and Body Composition, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Assessment of Body Composition in Health and Disease Using Bioelectrical Impedance Analysis (BIA) and Dual Energy X-Ray Absorptiometry (DXA): A Critical Overview. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:3548284. [PMID: 31275083 PMCID: PMC6560329 DOI: 10.1155/2019/3548284] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/05/2019] [Indexed: 12/18/2022]
Abstract
The measurement of body composition (BC) represents a valuable tool to assess nutritional status in health and disease. The most used methods to evaluate BC in the clinical practice are based on bicompartment models and measure, directly or indirectly, fat mass (FM) and fat-free mass (FFM). Bioelectrical impedance analysis (BIA) and dual energy X-ray absorptiometry (DXA) (nowadays considered as the reference technique in clinical practice) are extensively used in epidemiological (mainly BIA) and clinical (mainly DXA) settings to evaluate BC. DXA is primarily used for the measurements of bone mineral content (BMC) and density to assess bone health and diagnose osteoporosis in defined anatomical regions (femur and spine). However, total body DXA scans are used to derive a three-compartment BC model, including BMC, FM, and FFM. Both these methods feature some limitations: the accuracy of BIA measurements is reduced when specific predictive equations and standardized measurement protocols are not utilized whereas the limitations of DXA are the safety of repeated measurements (no more than two body scans per year are currently advised), cost, and technical expertise. This review aims to provide useful insights mostly into the use of BC methods in prevention and clinical practice (ambulatory or bedridden patients). We believe that it will stimulate a discussion on the topic and reinvigorate the crucial role of BC evaluation in diagnostic and clinical investigation protocols.
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