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Poulsen VR, Baumann M, Korshøj M. The association between number of steps and the ambulatory blood pressure during leisure vs. work hours among cleaners. Int Arch Occup Environ Health 2023; 96:1373-1381. [PMID: 37851100 PMCID: PMC10635965 DOI: 10.1007/s00420-023-02015-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/29/2023] [Indexed: 10/19/2023]
Abstract
PURPOSE The physical activity paradox states occupational physical activity (OPA) to be hazardous and leisure time physical activity (LTPA) to be beneficial for health. Yet, the acute effects of OPA and LTPA on cardiovascular risk factors are sparsely investigated. The aim of this study was to investigate the acute effects on ambulatory blood pressure (ABP) from steps/hour during work and leisure time among cleaners. METHODS Data were obtained from a cluster randomized worksite intervention among 91 cleaners in Denmark and included a questionnaire, objective physical measurements, ABP (measured across 24 h), and steps/hour (measured during work and leisure time). A preliminary linear regression analysis was conducted as a mixed model including random intercept and slope, allowing for both within- and between-participant variability. We adjusted for sex, age, job seniority, medication use, smoking, self-reported fitness and BMI. Changes in ABP (mmHg) were estimated per 100 steps/hour. RESULTS The number of steps taken was not associated with ABP during either work or leisure. Moreover, the ABP did not seem to differ between exposure to steps taken during work (systolic - 0.42 mmHg, 95% Confidence Interval (CI): - 1.10-0.25, diastolic - 0.03 mmHg, 95% CI, - 0.45-0.39) and leisure time (systolic -0.47 mmHg, 95% CI, - 1.66-0.72, diastolic 0.25 mmHg, 95% CI, - 0.46-0.97). CONCLUSION Our findings show no significant association between steps/hour and ABP and no contrasting effects between work and leisure time. These mechanisms fostering the divergent results need to be further investigated to improve the understanding of the physical activity paradox.
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Affiliation(s)
| | - Mathilde Baumann
- Department of Occupational and Social Medicine, Hospital Holbæk, Holbæk, Denmark
| | - Mette Korshøj
- Department of Occupational and Social Medicine, Hospital Holbæk, Holbæk, Denmark
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2
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Dinh-Dang D, Khafagy A, Krause N, Harris-Adamson C. Assessment of cardiovascular load among hotel room cleaners. APPLIED ERGONOMICS 2023; 106:103886. [PMID: 36162273 DOI: 10.1016/j.apergo.2022.103886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 05/16/2023]
Abstract
Hotel room cleaners are a vulnerable population at risk for cardiovascular disease. To evaluate their workload heart rate (HR), % heart rate reserve (%HRR), blood pressure (BP), metabolic equivalent (MET), and energy expenditure (EE) were measured over two workdays and two off-workdays. The mean age was 45.5 (SD 8.2) years with a mean 10.4 (SD 7.8) years of work experience. Mean average and peak HR, %HRR, MET, and EE were significantly higher during a workday than an off-workday for the entire work shift, first and last hour of work. Mean average HR and %HRR saw the largest increase between the lunch and post-lunch interim. One-fourth of subjects exceeded the recommended 30% HRR threshold for 8-hour shifts. Some workers experienced a substantial increase in HR and DBP over a workday indicating physiologic fatigue and thus may be at increased risk for cardiovascular disease and premature death due to excessive physical work demands.
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Affiliation(s)
- Duyen Dinh-Dang
- Department of Biological Sciences, University of California, Irvine, Irvine, CA, USA
| | - Abdullah Khafagy
- Department of Community Medicine and Pilgrims Health Care, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia; Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Niklas Krause
- Department of Environmental Health Sciences and Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Carisa Harris-Adamson
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA; Department of Environmental Health Sciences, University of California, Berkeley, Berkeley, CA, USA.
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3
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Crowley P, Gupta N, Vuillerme N, Madeleine P, Holtermann A. Number of steps and systolic blood pressure: Do work and leisure matter? Scand J Med Sci Sports 2021; 31:1962-1970. [PMID: 34181778 PMCID: PMC9290469 DOI: 10.1111/sms.14010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/24/2021] [Indexed: 01/20/2023]
Abstract
The number of steps per day influences blood pressure and health. However, the association between steps at work and leisure and blood pressure is unknown. Thus, we aimed to investigate the association between the domain‐specific number of steps and systolic blood pressure. A thigh‐worn accelerometer was used to measure the steps of 694 workers over 1–5 consecutive days, separated into work and leisure domains using a self‐reported diary. We linearly regressed steps at work, leisure and total day against systolic blood pressure, adjusting for age, sex, body mass index, smoking, and antihypertensive medication. Additionally, we stratified the analyses on job type (blue‐collar or white‐collar). The results of this cross‐sectional analysis indicated a beneficial association between the number of steps (per 2000‐step interval) and systolic blood pressure for the total day (−0.5 mmHg; −1.0 to −0.8, 95% CI, p < 0.05) and work (−0.9 mmHg; −1.5 to −0.4, 95% CI, p < 0.05), but not for leisure (+0.1 mmHg; −0.7 to 0.9, 95% CI, p = 0.75). Blue‐collar workers took almost twice as many steps at work (9143 ± SD3837) as white‐collar workers (5863 ± SD3565) and, after stratification on job type, we observed a beneficial association between the number of steps at work and systolic blood pressure among blue‐collar workers (−1.1 mmHg; −1.7 to −0.4, 95% CI, p < 0.05), but not for white‐collar workers (−0.3 mmHg; −1.7 to 1.1, 95% CI, p = 0.7). These findings indicate that the number of steps at work, particularly among blue‐collar workers, is beneficially associated with systolic blood pressure. Such findings support the potential of work (re)design to promote walking to improve blood pressure.
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Affiliation(s)
- Patrick Crowley
- The National Research Centre for the Working Environment, Copenhagen, Denmark.,Sport Sciences - Performance and Technology, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.,University of Grenoble Alpes, AGEIS, Grenoble, France
| | - Nidhi Gupta
- The National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Nicolas Vuillerme
- Sport Sciences - Performance and Technology, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.,University of Grenoble Alpes, AGEIS, Grenoble, France.,Institute Universitaire de France, Paris, France.,LabCom Telecom4Health, University of Grenoble Alpes and Orange Labs, Grenoble, France
| | - Pascal Madeleine
- Sport Sciences - Performance and Technology, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Andreas Holtermann
- The National Research Centre for the Working Environment, Copenhagen, Denmark.,Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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4
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Korshøj M, Lund Rasmussen C, de Oliveira Sato T, Holtermann A, Hallman D. Heart rate during work and heart rate variability during the following night: a day-by-day investigation on the physical activity paradox among blue-collar workers. Scand J Work Environ Health 2021; 47:387-394. [PMID: 33929548 PMCID: PMC8259705 DOI: 10.5271/sjweh.3965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objectives: Contrary to leisure-time physical activity, occupational physical activity (OPA) may have harmful health effects, called the physical activity paradox. A proposed mechanism is that OPA can elevate the heart rate (HR) for several hours per day. We aimed to investigate the association between the mean intensity of OPA and HR variability (HRV) indices the following night. Methods: Three cohorts (NOMAD, DPhacto, and Physical Workload and Fitness) involving blue-collar workers from different sectors were merged in this study. HR monitors (Actiheart) recorded 24-hour inter-beat intervals (IBI) for up to four consecutive days. The relative intensity of the mean HR during work was estimated by HR reserve (%HRR), and time-domain indices of HRV were analyzed during the following night. Data were analyzed using a multilevel growth model to test the association between mean %HRR during work and HRV indices at night in a day-by-day analysis adjusted for age, BMI, alcohol consumption, smoking, and occupation. Results: The dataset included a sample of 878 Danish blue-collar workers, with a mean %HRR during work of 31%, and 42% worked at an intensity ≥30%HRR. The multilevel model showed negative within- and between-subject associations between %HRR during work and HRV indices at night. Conclusions: Our results indicate a higher %HRR during work to associate with lower HRV indices the following night and a higher HR, reflecting an imbalanced autonomic cardiac modulation. This finding supports a high mean HR during work to be a potential underlying mechanism for the harmful health effect of OPA.
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Affiliation(s)
- Mette Korshøj
- Department of Occupational and Social Medicine, Holbæk Hospital Gl. Ringstedvej 4B, 4300 Hobæk, Denmark.
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5
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d'Errico A, Ricceri F, Descatha A, Leclerc A, Roquelaure Y, Goldberg M. Lifetime Duration of Exposure to Biomechanical Factors at Work as a Mediator of the Relationship Between Socioeconomic Position and Walking Speed. Front Public Health 2020; 8:412. [PMID: 33282805 PMCID: PMC7689267 DOI: 10.3389/fpubh.2020.00412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 07/10/2020] [Indexed: 11/13/2022] Open
Abstract
The study aimed to assess the proportion mediated by the duration of exposure to ergonomic factors at work on the relationship between socioeconomic position (SEP) and low walking speed. This cross-sectional study was performed on data collected at baseline on 19,704 men and 20,273 women 45-70 years old, currently or previously employed, enrolled in the Constances cohort. SEP was assigned through current or last occupation, categorized in three classes, based on the European Socioeconomic Classification. Walking speed was assessed through one measurement of normal walking for 3 m and dichotomized at the lowest quintile of the sex- and age- (5-year) specific distribution. Self-reported workplace exposure throughout working life to repetitive work, intense physical work, and lifting/carrying heavy loads was used to assess the duration of exposure to each factor, categorized in four classes. Through Poisson regression models, adjusted for BMI, smoking, alcohol intake, hypertension, physical activity, diabetes, cardiovascular diseases, and a cognitive score, the attenuation in the prevalence ratio (PR) of low walking speed by SEP produced by the inclusion of duration of exposure to each factor was evaluated. The mediating effect of work ergonomic exposures on the relationship between SEP and low walking speed was assessed using the weighted method by Vanderweele. In the fully adjusted model without ergonomic exposures, both men and women in the middle and the lowest SEP had a significantly increased risk of low walking speed compared with those in the highest SEP (men: PR = 1.30 and PR = 1.46, respectively; women: PR = 1.24 and PR = 1.45, respectively). The inclusion in separate regression models of exposure duration to repetitive work, intense physical work, and handling of heavy loads produced modest risk attenuations in both men and women, all smaller or around 10%. Mediation analysis revealed in both sexes significant mediation effects for most ergonomic exposures considered, although also with low mediation effects. Significant differences in walking speed by SEP were observed in this large sample, but the proportion of such differences explained by the duration of exposure to ergonomic factors at work was low using either the risk attenuation or the mediation analysis methods.
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Affiliation(s)
- Angelo d'Errico
- Local Health Unit TO3, Epidemiology Department, Turin, Italy
| | - Fulvio Ricceri
- Local Health Unit TO3, Epidemiology Department, Turin, Italy.,Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Alexis Descatha
- Inserm, Population-Based Epidemiologic Cohorts Unit, UMS 011, Paris, France.,University of Angers, Angers, France
| | - Annette Leclerc
- Inserm, Population-Based Epidemiologic Cohorts Unit, UMS 011, Paris, France.,Paris Descartes University, Paris, France
| | | | - Marcel Goldberg
- Inserm, Population-Based Epidemiologic Cohorts Unit, UMS 011, Paris, France.,Paris Descartes University, Paris, France
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6
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Ribeiro UES, Fernandes RDCP. Hypertension in Workers: The Role of Physical Activity and its Different Dimensions. Arq Bras Cardiol 2020; 114:755-761. [PMID: 32491065 PMCID: PMC8386995 DOI: 10.36660/abc.20190065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/08/2019] [Accepted: 06/23/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Physical activity, each type in its own manner, whether occupational, domestic or leisure, can play a significant role regarding high blood pressure (HBP). However, practicing physical activity only at leisure time, or in specific situations, can be insufficient to achieve the effective control of HBP. OBJECTIVE To analyze the isolated and cumulative effect of different types of physical activity and the prevalence of HBP among workers. METHODS A cross-sectional study with 1,070 Urban Cleaning and Footwear Industry workers in Bahia, who answered a survey, conducted by an interviewer on sociodemographic, occupational, lifestyle and hypertensive morbidity aspects. Weight, height, waist circumference and blood pressure were measured. Case of HBP: Systolic blood pressure ≥140 or diastolic blood pressure ≥90, or regular treatment for HBP. The occupational, domestic and leisure aspects of Physical Activity were studied. A multivariate analysis with Cox Regression was performed for cross-sectional studies. RESULTS The prevalence of HBP was 24%, being 37% among workers aged between 35-44 years, and 51% among workers aged between 45-54 years. The multivariate model showed that workers who were active in one form of physical activity only or no forms had 62% higher BP levels and that these levels were 25% higher among workers who were active in two out of three physical activity forms. Being a male, being older (> 31 years old) and being overweight were characteristics associated with HBP, with prevalence ratios of 1.62, 2.10 and 2.26, respectively. CONCLUSIONS There was a cumulative effect of the form of physical activity on the occurrence of HBP. Classifying active subjects at work or at home as inactive persons by relying only on the leisure form can lead to methodological errors. (Arq Bras Cardiol. 2020; 114(5):755-761).
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Affiliation(s)
- Uelito Everaldo Souza Ribeiro
- Universidade Federal da BahiaPrograma de Pós-Graduação em Saúde, Ambiente e TrabalhoSalvadorBABrasilUniversidade Federal da Bahia - Programa de Pós-Graduação em Saúde, Ambiente e Trabalho, Salvador, BA - Brasil
| | - Rita de Cassia Pereira Fernandes
- Universidade Federal da BahiaFaculdade de Medicina da BahiaSalvadorBABrasilUniversidade Federal da Bahia - Faculdade de Medicina da Bahia, Salvador, BA – Brasil
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7
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Sotrate Gonçalves J, de Oliveira Sato T. Factors associated with musculoskeletal symptoms and heart rate variability among cleaners - cross-sectional study. BMC Public Health 2020; 20:774. [PMID: 32448172 PMCID: PMC7247127 DOI: 10.1186/s12889-020-08928-7] [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: 08/23/2019] [Accepted: 05/17/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The professionals who perform cleaning activity constitute a major economic sector in Brazil. Cleaners may develop health problems related to the musculoskeletal and cardiovascular systems. It is necessary to understand the working and health conditions of cleaners in Brazil. Thus, the aim of this study was to identify factors associated with musculoskeletal symptoms and heart rate variability (HRV) among cleaners. METHODS A cross-sectional study conducted at a public higher education institution with 45 outsourced cleaners following approval from the institutional ethics committee. The participants answered a questionnaire addressing sociodemographic, occupational and health data, the Nordic Musculoskeletal Questionnaire, the Physical Activity Questionnaire (work and leisure) and the short version of the Copenhagen Psychosocial Questionnaire. Clinical data (height, body mass, waist-to-hip ratio and blood pressure) and heart rate variability (HRV) were also collected. Logistic and linear regression models were created to identify factors associated with symptoms and HRV. RESULTS The sample consisted of women (100%) predominantly older than 50 years of age (44%), without a conjugal life (64%), with three or more children (59%), low educational level (58%) and who worked less than 12 months at the company (87%). Systemic arterial hypertension (23%) was the most reported health problem. The highest frequency of musculoskeletal symptoms was identified in the lower limbs (ankles/feet: 31% in the previous 12 months and 24% in the previous 7 days; knees: 31% in the previous 12 months and 20% in the previous 7 days). Moreover, the workers reported not practicing physical activity during leisure time (84%). Psychosocial aspects indicated health risks for the dimensions "influence at work" (74%), "burnout" (59%) and "stress" (52%). Associations were found between ankle/foot symptoms and body mass index, shoulder symptoms and predictability, and knee symptoms and self-rated health and burnout. HRV indices were associated with age. CONCLUSIONS This study outlined the profile of female cleaners and identified risk factors. The workers exhibited musculoskeletal symptoms, which were associated with the body mass index and some psychosocial factors. HRV indices were associated with age. Thus, health promotion and prevention measures should be taken to benefit this population of workers.
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Affiliation(s)
- Josiane Sotrate Gonçalves
- Physical Therapy Department, Laboratory of Preventive Physical Therapy and Ergonomics (LAFIPE), Physical Therapy Postgraduate Program, Federal University of São Carlos, Rodovia Washington Luís, km 235, Monjolinho, São Carlos, SP, 13565-905, Brazil
| | - Tatiana de Oliveira Sato
- Physical Therapy Department, Laboratory of Preventive Physical Therapy and Ergonomics (LAFIPE), Physical Therapy Postgraduate Program, Federal University of São Carlos, Rodovia Washington Luís, km 235, Monjolinho, São Carlos, SP, 13565-905, Brazil.
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8
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Korshøj M, Clays E, Krause N, Gupta N, Jørgensen MB, Holtermann A. Associations between occupational relative aerobic workload and resting blood pressure among different age groups: a cross-sectional analysis in the DPhacto study. BMJ Open 2019; 9:e029713. [PMID: 31551379 PMCID: PMC6773343 DOI: 10.1136/bmjopen-2019-029713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE High levels of occupational physical activity (OPA) increase heart rate, blood pressure (BP) and the risk of hypertension. Older workers may be more vulnerable to high levels of OPA due to age-related degeneration of the cardiovascular system and cardiorespiratory fitness. This study investigates the association of relative aerobic workload (RAW) with resting BP and examines if this relation is moderated by age. DESIGN Cross-sectional epidemiological study. SETTING Data were collected among employees of 15 Danish companies in the cleaning, manufacturing and transport sectors. PARTICIPANTS 2107 employees were invited for participation, of these 1087 accepted and 562 (42% female and 4% non-Westerns) were included in the analysis based on the criteria of being non-pregnant, no allergy to bandages, sufficient amount of heart rate data corresponding to ≥4 work hours per workday or 75% of average work hours, and no missing outcome and confounder values. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome measure was BP. RESULTS Heart rate reserve was estimated from ambulatory 24-hour heart rate measures covering 2.5 workdays per participant (SD 1.0 day). Age significantly moderated the association between RAW and BP. Mean intensity and duration of high RAW (≥30% heart rate reserve) showed positive associations with diastolic BP and negative associations with pulse pressure (PP) among participants ≥47 years old. Tendencies towards negative associations between RAW and BP were seen among participants <47 years old. CONCLUSIONS Mean intensity and duration of RAW increased diastolic BP among participants ≥47 years old. Negative associations with PP may be due to healthy worker selection bias. Prevention of hypertension should consider reductions in RAW for ageing workers.
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Affiliation(s)
- Mette Korshøj
- Unit of Muscoloskeletal Disorders and Physical Workload, National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Els Clays
- Department of Public Health, Universiteit Gent, Gent, Belgium
| | - Niklas Krause
- Environmental Health Sciences, University of California Los Angeles, Los Angeles, California, USA
| | - Nidhi Gupta
- Unit of Muscoloskeletal Disorders and Physical Workload, National Research Centre for the Working Environment, Copenhagen, Denmark
| | | | - Andreas Holtermann
- Unit of Muscoloskeletal Disorders and Physical Workload, National Research Centre for the Working Environment, Copenhagen, Denmark
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
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9
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Sołtysik BK, Kostka J, Karolczak K, Watała C, Kostka T. What is the most important determinant of cardiometabolic risk in 60-65-year-old subjects: physical activity-related behaviours, overall energy expenditure or occupational status? A cross-sectional study in three populations with different employment status in Poland. BMJ Open 2019; 9:e025905. [PMID: 31366638 PMCID: PMC6677988 DOI: 10.1136/bmjopen-2018-025905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES The aim of the study was to determine whether cardiovascular risk factors may differ according to occupational status and whether physical activity related to total energy expenditure (PA-EE) and related to health-related behaviours (PA-HRB) is associated with common cardiovascular risk factors or metabolic syndrome in pre-elderly subjects. METHODS Three hundred subjects aged 60-65 were recruited and divided into three equal groups of white-collar, blue-collar workers and unemployed subjects; 50% were women. The subjects were tested for major cardiovascular risk factors such as smoking, anthropometric indices, blood pressure, lipid levels, glucose, uric acid and homocysteine. PA-EE and PA-HRB were assessed with PA questionnaires. RESULTS Blue-collar workers displayed higher anthropometric indices, blood pressure and higher PA-EE in comparison with other two groups. PA-HRB had a positive impact on body mass indices, lipids, glucose, uric acid and the prevalence of metabolic syndrome, with no such relationship observed for PA-EE. CONCLUSIONS The greatest cardiovascular risk was observed in the blue-collar workers group. Only PA-HRB had a positive association with cardiometabolic risk profile. No relationship was observed for PA-EE. Thus, promoting everyday life and leisure time PA behaviours is crucial for preventing cardiometabolic risk in pre-elderly subjects, even in blue-collar workers with high work-related EE.
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Affiliation(s)
| | - Joanna Kostka
- Department of Physical Medicine, Medical University of Łódź, Łódź, Poland
| | - Kamil Karolczak
- Department of Haemostatic Disorders, Medical University of Łódź, Łódź, Poland
| | - Cezary Watała
- Department of Haemostatic Disorders, Medical University of Łódź, Łódź, Poland
| | - Tomasz Kostka
- Department of Geriatrics, Medical University of Łódź, Łódź, Poland
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10
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Mikkola TM, von Bonsdorff MB, Salonen MK, Kautiainen H, Ala-Mursula L, Solovieva S, Viikari-Juntura E, Eriksson JG. Physical heaviness of work and sitting at work as predictors of mortality: a 26-year follow-up of the Helsinki Birth Cohort Study. BMJ Open 2019; 9:e026280. [PMID: 31101697 PMCID: PMC6530310 DOI: 10.1136/bmjopen-2018-026280] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES To examine the relationships of late-career physical heaviness of work and sitting at work with mortality. A national-level job exposure matrix was used to determine the occupation-specific level of physical heaviness and sitting. DESIGN Prospective cohort study between years 1990 and 2015. SETTING Community. PARTICIPANTS 5210 men and 4725 women from the Helsinki Birth Cohort Study with an occupational code at baseline (ages 45-57 years). PRIMARY AND SECONDARY OUTCOME MEASURES Total, cardiovascular (International Classification of Diseases 10th Revision I00-I99), cancer (C00-C97) and external (S00-Y84) mortality. RESULTS The exposures, physical heaviness and sitting had a non-linear, inverse relationship. During the 26-year follow-up, 1536 men and 759 women died. Among men, physical heaviness of work was positively associated and sitting at work was negatively associated with all-cause, cardiovascular and external cause mortality but they were not associated with cancer mortality. The HRs for men in the highest quartile of physical heaviness of work compared with men in the lowest quartile were 1.54 (1.31-1.80) for all-cause mortality, 1.70 (1.30-2.23) for cardiovascular mortality and 3.18 (1.75-5.78) for external cause mortality (adjusted for age and years of education). Compared with the lowest quartile, the HRs for the highest quartile of sitting at work among men were 0.71 (0.61-0.82) for all-cause mortality, 0.59 (0.45-0.77) for cardiovascular mortality and 0.38 (0.22-0.66) for external cause mortality. In women, neither physical heaviness of work nor sitting at work was associated with mortality. CONCLUSIONS Men in physically heavy work at their late-work career are at higher risk of death than men in physically light work.
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Affiliation(s)
| | - Mikaela B von Bonsdorff
- Folkhälsan Research Center, Helsinki, Finland
- Gerontology Research Centre, Faculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland
| | - Minna K Salonen
- Folkhälsan Research Center, Helsinki, Finland
- Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
| | - Hannu Kautiainen
- Folkhälsan Research Center, Helsinki, Finland
- Primary Health Care Unit, Kuopio University Hospital, Kuopio, Finland
| | - Leena Ala-Mursula
- Center for Life Course Health Research, University of Oulu, Oulu, Finland
| | | | | | - Johan G Eriksson
- Folkhälsan Research Center, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
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11
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Coenen P, Korshøj M, Hallman DM, Huysmans MA, van der Beek AJ, Straker LM, Holtermann A. Differences in heart rate reserve of similar physical activities during work and in leisure time – A study among Danish blue-collar workers. Physiol Behav 2018; 186:45-51. [DOI: 10.1016/j.physbeh.2018.01.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/27/2017] [Accepted: 01/12/2018] [Indexed: 11/16/2022]
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12
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Lund Rasmussen C, Nielsen L, Linander Henriksen M, Søgaard K, Krustrup P, Holtermann A, Korshøj M. Acute effect on ambulatory blood pressure from aerobic exercise: a randomised cross-over study among female cleaners. Eur J Appl Physiol 2017; 118:331-338. [PMID: 29209783 PMCID: PMC5767212 DOI: 10.1007/s00421-017-3773-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/25/2017] [Indexed: 01/04/2023]
Abstract
Purpose High occupational physical activity (OPA) is shown to increase the risk for elevated blood pressure, cardiovascular diseases and mortality. Conversely, aerobic exercise acutely lowers the blood pressure up to 25 h post exercise. However, it is unknown if this beneficial effect also apply for workers exposed to high levels of OPA. Cleaners constitute a relevant occupational group for this investigation because of a high prevalence of OPA and cardiovascular disease. Accordingly, the objective was to investigate the acute effects on ambulatory blood pressure from a single aerobic exercise session among female cleaners. Methods Twenty-two female cleaners were randomised to a cross-over study with a reference and an aerobic exercise session. Differences in 24-h, work hours, leisure time, and sleep ambulatory blood pressure (ABP) were evaluated using repeated measure 2 × 2 mixed-models. Results After the aerobic exercise session, the 24-h systolic ambulatory blood pressure was significantly lowered by 2.4 mmHg (p < 0.01) compared to the reference session. The 24-h diastolic ABP was unaltered. During work hours, a lowered systolic ABP of 2.2 mmHg (p = 0.02) and a higher diastolic ABP of 1.5 mmHg (p = 0.03) were found after the aerobic exercise session. During leisure time, the systolic ABP was lowered by 1.7 mmHg (p = 0.04) and the diastolic ABP was unaltered. During sleep, the systolic and diastolic ABP was unaltered. Conclusion A single aerobic exercise session lowered 24-h systolic ABP of 2.4 mmHg. Thus, an aerobic exercise session seems to be beneficial for lowering the risk of hypertension among cleaners.
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Affiliation(s)
- Charlotte Lund Rasmussen
- National Research Centre for the Working Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark.
| | | | | | - Karen Søgaard
- Occupational and Environmental Medicine, University Hospital Odense, Odense, Denmark.,Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Peter Krustrup
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark.,Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, St. Luke's Campus, Exeter, UK
| | - Andreas Holtermann
- National Research Centre for the Working Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark.,Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Mette Korshøj
- National Research Centre for the Working Environment, Lersø Parkallé 105, 2100, Copenhagen, Denmark
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Arias OE, Umukoroa PE, Stoffel SD, Hopcia K, Sorensen G, Dennerlein JT. Associations between trunk flexion and physical activity of patient care workers for a single shift: A pilot study. Work 2017; 56:247-255. [PMID: 28211832 PMCID: PMC7641201 DOI: 10.3233/wor-172481] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Trunk flexion and occupational physical activity are parameters that have been used to assess and characterize jobs with high physical demands. OBJECTIVE Characterize the physical load of trunk flexion and physical activity of patient care unit (PCU) workers during a single work shift. METHODS Participants wore an accelerometer to measure physical activity and an inclinometer to assess trunk flexion during a single work shift, which was compared using correlation and linear regression analyses. RESULTS Participants spent 74% of their work time upright between - 10° to 20° and 19% of their time flexed between 20° to 45°. On average workers spent 3% and 5% of their time, in the extreme postures of less than - 10° and greater than 45°, respectively. Participants spent 99% of their shift below moderate and vigorous activity. The largest correlation found was between the number of forward trunk flexions to 20° degrees per shift and minutes in lifestyle activity (r = 0.6, p < 0.001). No correlations between minutes of moderate or vigorous physical activity and trunk flexion were observed. CONCLUSIONS This study suggests that the physical demands of patient care unit workers as measured through trunk flexion are associated with lifestyle and light levels of physical activity.
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Affiliation(s)
- Oscar E. Arias
- Harvard School of Public Health Center for Work, Health and Wellbeing, Boston, MA, USA
- Department of Environmental Health Sciences, University of California, Los Angeles (UCLA), CA, USA
| | - Peter E. Umukoroa
- Harvard School of Public Health Center for Work, Health and Wellbeing, Boston, MA, USA
| | - Sonja D. Stoffel
- Centre for Sport and Exercise Education, Camosun College, Victoria, BC, Canada
- Department of Social and Behavioral Sciences, Harvard School of Public Health, Boston, MA, USA
| | - Karen Hopcia
- Department of Occupational Health, Partners HealthCare, Inc., Boston, MA, USA
- Department of Health Systems Science, University of Illinois at Chicago, Chicago, IL, USA
| | - Glorian Sorensen
- Department of Social and Behavioral Sciences, Harvard School of Public Health, Boston, MA, USA
- Center for Community Based Research, Dana Faber Cancer Institute, Boston, MA, USA
| | - Jack T. Dennerlein
- Harvard School of Public Health Center for Work, Health and Wellbeing, Boston, MA, USA
- Department of Physical Therapy, Movement, and Rehabilitation Sciences, Bouvé College of Health Sciences, Northeastern University, Boston, MA, USA
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