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1.
BMC Public Health ; 19(1): 1489, 2019 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-31703665

RESUMO

BACKGROUND: Although the main targets for reducing workplace sedentary behavior have been clarified, only a few studies have examined the association between social-ecological factors and workplace sedentary behavior for effective intervention. The present study aimed to examine the social-ecological factors of workplace sedentary behavior among Japanese sedentary workers. METHODS: Participants were recruited via a cross-sectional mail survey targeting randomly sampled 6000 middle-aged people dwelling in Matsuyama-city and Koto-ku in Japan. Participants answered a questionnaire on social-ecological factors, recorded their work time in a diary, and wore a triaxial accelerometer during waking time for 7 consecutive days. Workplace sedentary behavior was measured using accelerometer and was referred to as the work time in the recorded diary. Full-time workers who had mainly sitting work and valid accelerometer data were included in the analysis. Workplace sedentary variables were sedentary breaks per sedentary hour, sedentary time, and ≥ 30 min bouts of sedentary time. The associations between each sedentary variable and social-ecological factors were explored by conducting three multiple linear regression analyses adjusting for sociodemographic and health-related factors. RESULTS: A total of 227 participants (133 men, mean age 49.9 ± 6.9 years) were included in the analysis. In the overall sample, "typically seeing work colleagues take sedentary breaks" was significantly associated with more sedentary breaks (B [95% confidence interval {CI}=1.40 [0.07 to 2.73]) and shorter ≥30-min bouts of sedentary time (B [95% CI] = -7.08 [-13.75 to -0.40]). "I am motivated to take sedentary breaks" had an unfavorable association with less sedentary breaks (B [95% CI] = -1.36 [-2.61 to -0.12]) and longer sedentary time (B [95% CI] = 4.15 [0.29 to 8.00]). In male workers, "Too stressed to take sedentary breaks" was significantly associated with less sedentary breaks (B [95% CI] = -5.6 [-9.17 to -2.02]). CONCLUSIONS: Seeing work colleagues take sedentary breaks may be important for reducing workplace sedentary behavior. Those who are more sedentary are motivated to take sedentary breaks. Male workers who feel the need to take sedentary breaks at work are more sedentary.


Assuntos
Acelerometria/estatística & dados numéricos , Postura Sentada , Meio Social , Trabalho/estatística & dados numéricos , Local de Trabalho/estatística & dados numéricos , Adulto , Estudos Transversais , Feminino , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Motivação , Comportamento Sedentário , Inquéritos e Questionários , Trabalho/fisiologia
2.
Zhongguo Gu Shang ; 32(9): 802-806, 2019 Sep 25.
Artigo em Chinês | MEDLINE | ID: mdl-31615174

RESUMO

OBJECTIVE: To explore the influence of individual characteristics of patients on the kinematics parameters of sitting lumbar spine manipulation. METHODS: From January 2016 to December 2016, 30 patients with degenerative lumbar spondylolisthesis were treatede, including 18 males and 12 females, aged from 45 to 61(52.33±2.34) years old, with a course of 2 to 72(29.13±3.23) months. Motion capture technique was used to measure the kinematics parameters of the same manipulator in sitting lumbar spine manipulation for 30 patients, including rotation time, maximum speed and maximum acceleration. The parameters of the left and right hands of the operator were different. The effects of individual characteristics on the kinematics parameters of sitting lumbar spine manipulation were analyzed. RESULTS: The kinematic and mechanical parameters of manipulation were as follows:spin time, maximum speed, maximum acceleration, the manipulation done by right or left hand showed the similar parameters(P>0.05). According to multivariate linear regression, there was a significant correlation between the age of the patient and the rotation time of the operator(P<0.01); the height of patient had a significant correlation with the maximum speed and maximum acceleration of the operator(P<0.01). CONCLUSIONS: There is no difference between the manipulation of left and right hand in clinical application. Age and height are important influencing factors of sitting lumbar rotation manipulation.


Assuntos
Manipulação da Coluna , Postura Sentada , Fenômenos Biomecânicos , Feminino , Humanos , Vértebras Lombares , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular
3.
Sante Publique ; Vol. 31(3): 377-385, 2019.
Artigo em Francês | MEDLINE | ID: mdl-31640325

RESUMO

OBJECTIVE: The purpose of this research was to evaluate the effects of an intervention on reducing sitting time in a professional setting. METHODS: The intervention consisted of a group presentation on sedentary behavior at work and active work breaks, followed by an individual planning phase. Participants were then invited to use alert software for four weeks. The intervention lasted six weeks; 38 people aged 29 to 59 years participated (80% women). Before and after the intervention, participants wore accelerometers to assess behaviors (sedentary and physical activity at work) and responded to a questionnaire measuring the degree of automaticity for sitting at work and taking active breaks. RESULTS: After the intervention, the time spent in a sitting position during a working day decreased significantly. Specifically, sitting time decreased more among those aged 29 to 43 years; who had decided to take breaks of at least 5 minutes; and had more extended sitting time before the intervention. CONCLUSIONS: This study demonstrated that combining an informational strategy with computer- or mobile-generated alerts reduces sitting time spent in the workplace. This intervention was inexpensive for employees and companies. An interesting perspective could be to compare these effects with those of interventions based on a change in the physical work environment (such as the installation of adjustable desks).


Assuntos
Saúde do Trabalhador , Postura Sentada , Local de Trabalho , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Comportamento Sedentário , Inquéritos e Questionários , Fatores de Tempo
4.
Med Lav ; 110(5): 331-341, 2019 Oct 29.
Artigo em Inglês | MEDLINE | ID: mdl-31659990

RESUMO

Systematic Reviews have been introduced to improve the synthesis of available evidence and to reduce bias in the conclusions about a body of evidence. Nowadays, Systematic Review is an established method also in the Occupational Safety and Health (OSH) field. It is the Cochrane Work Review Group that facilitates authors to produce Cochrane reviews of intervention topics in this area. A variety of guidelines used Cochrane Work reviews for underpinning their recommendations. Due to the comprehensive search and reproducibility of the methods of a systematic review, it turned out that systematic reviews can be powerful in changing beliefs. For example, studies published in the eighties advocated the use of back schools. Nowadays, we know that the total body of evidence has changed the traditional view that training in lifting techniques could prevent back pain. 'Sitting is the new smoking' is an eye catching nicely alliterating motto, but it is of course highly overstated. The findings of a Cochrane review of the effects of interventions to decrease sitting at work showed that sitting time can be reduced by a bit less than two hours per day by providing sit-stand desks plus education. However, it is unclear if this is sufficient to counter the effects of sitting. A wealth of evidence on OSH interventions has been collected by international collaboration in the Cochrane Work Review Group. This can be extended to systematic reviews of the effects of exposure of workers to assess to which risks of adverse health effects they are exposed.


Assuntos
Saúde do Trabalhador , Revisão Sistemática como Assunto , Humanos , Reprodutibilidade dos Testes , Postura Sentada
5.
Int J Behav Nutr Phys Act ; 16(1): 85, 2019 10 12.
Artigo em Inglês | MEDLINE | ID: mdl-31606040

RESUMO

BACKGROUND: Growing evidence suggests that prolonged uninterrupted sitting can be detrimental to health. Much sedentary behaviour research is reliant on self-reports of sitting time, and sitting-reduction interventions often focus on reducing motivation to sit. These approaches assume that people are consciously aware of their sitting time. Drawing on Action Identification Theory, this paper argues that people rarely identify the act of sitting as 'sitting' per se, and instead view it as an incidental component of more meaningful and purposeful typically-seated activities. METHODS: Studies 1 and 2 explored whether people mentioned sitting in written descriptions of actions. Studies 3-5 compared preferences for labelling a typically desk-based activity as 'sitting' versus alternative action identities. Studies 6 and 7 used card-sort tasks to indirectly assess the prioritisation of 'sitting' relative to other action descriptions when identifying similar actions. RESULTS: Participants rarely spontaneously mentioned sitting when describing actions (Studies 1-2), and when assigning action labels to a seated activity, tended to offer descriptions based on higher-order goals and consequences of action, rather than sitting or other procedural elements (Studies 3-5). Participants primarily identified similarities in actions based not on sitting, but on activities performed while seated (e.g. reading; Studies 6-7). CONCLUSION: 'Sitting' is a less accessible cognitive representation of seated activities than are representations based on the purpose and implications of seated action. Findings suggest that self-report measures should focus on time spent in seated activities, rather than attempting to measure sitting time via direct recall. From an intervention perspective, findings speak to the importance of targeting behaviours that entail sitting, and of raising awareness of sitting as a potential precursor to attempting to reduce sitting time.


Assuntos
Conscientização , Postura Sentada , Adulto , Cognição , Feminino , Humanos , Masculino , Comportamento Sedentário , Autorrelato , Fatores de Tempo , Local de Trabalho/psicologia
6.
Int J Sports Med ; 40(13): 871-875, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31590189

RESUMO

High amounts of sitting increase the risk of non-communicable disease and mortality. Treadmill desks make it possible to reduce sitting during the desk-based worker's day. This study investigated the acute effect on postural stability of interrupting prolonged sitting with an accumulated 2-h of light-intensity treadmill desk walking. Twenty-one sedentary adults participated in this randomized acute crossover trial, with two 6.5 h conditions: 1) uninterrupted sitting and 2) interrupted sitting with accumulated 2 h light-intensity treadmill desk walking. Pre- and post-condition, participants performed four postural stability tests on a pressure plate (bipedal and unipedal standing stance, eyes open and eyes closed). Anteroposterior center of pressure amplitude showed a significant condition x time interaction in bipedal eyes closed (F(1,20)=4.62, p=0.046) and unipedal eyes open (F(1,20)=9.42, p=0.006) tests, and mediolateral center of pressure amplitude in bipedal eyes closed (F(1,20)=6.12, p=0.023) and bipedal eyes open (F(1,12)=5.55, p=0.029) tests. In the significant interactions, amplitude increased pre to post condition in the uninterrupted sitting condition. The accumulated 2 h light-intensity treadmill desk walking ameliorated the negative effect of 6.5 h prolonged sitting on postural sway, supporting workplace treadmill desk use.


Assuntos
Ergometria/instrumentação , Equilíbrio Postural/fisiologia , Postura Sentada , Caminhada/fisiologia , Local de Trabalho , Adulto , Estudos Cross-Over , Feminino , Humanos , Decoração de Interiores e Mobiliário , Masculino , Pessoa de Meia-Idade , Saúde do Trabalhador , Análise e Desempenho de Tarefas
7.
Medicine (Baltimore) ; 98(39): e17287, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31574848

RESUMO

Evidence suggests that mental health is associated with multiple factors such as physical activity, sedentary behavior, and physical function in older adults. The present study used latent profile analysis to identify classes of older adults based on their health profile among a representative sample of Korean older adults with hypertension. Differences in mental health between these classes were also examined.Seven hundred and sixty seven participants (mean age = 70.23, SD = 6.08; men 45.6%) were included in the analysis.There were 3 latent classes (class 1: a physically inactive lifestyle with low physical function and body perception; class 2: a physically moderate lifestyle with moderate physical function and low body perception; class 3: a physically active lifestyle with high physical function and body perception). According to class comparisons, older adults in class 3 had significantly lower anxiety/depression levels than classes 1 and 2. Older adults in class 3 had significantly lower stress levels than class 1.It is possible that among older adults, having a positive attitude of one's body shape may also be important for improving anxiety/depression along with having a physically active lifestyle and maintaining physical function.


Assuntos
Imagem Corporal/psicologia , Força da Mão , Hipertensão/psicologia , Postura Sentada , Caminhada , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Estudos Transversais , Depressão/psicologia , Exercício/psicologia , Feminino , Humanos , Hipertensão/fisiopatologia , Análise de Classes Latentes , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Percepção , República da Coreia , Estresse Psicológico/psicologia
8.
Turk J Pediatr ; 61(1): 79-84, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31559725

RESUMO

Seyhan K, Kerem-Günel M. Does stable sitting influence upper limb function in children with cerebral palsy? Turk J Pediatr 2019; 61: 79-84. Bilateral spastic cerebral palsy (BSCP) patients frequently need to use various sitting devices for body control and function. The aim of this study was to investigate whether the use of a belt to position the pelvis in an adjustable chair would affect upper limb function in preschool children with BSCP. Fortyone children with BSCP [mean age 44 ±11, range 18-60 months] classified according to the Gross Motor Function Classification System (GMFCS), as level III (n=21) and level IV (n=20) were fitted with a hip-positioning belt. Upper limb functions were assessed by Quality of Upper Extremity Skills Test (QUEST). The median scores of the following upper extremity functions increased significantly by wearing the hip positioning belt: dissociated movements, grasping, weight bearing and protective extension. The total QUEST score increased from 56.7 (±46.3) to 66.1 (±39.2) (p < 0.001). The portable and adaptable hip-positioning belt may be used in daily life to improve upper limb activity in preschool children with moderate to severe BSCP.


Assuntos
Paralisia Cerebral/fisiopatologia , Paralisia Cerebral/reabilitação , Aparelhos Ortopédicos , Postura Sentada , Extremidade Superior/fisiopatologia , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
9.
Zhen Ci Yan Jiu ; 44(9): 668-71, 2019.
Artigo em Chinês | MEDLINE | ID: mdl-31532137

RESUMO

OBJECTIVE: To investigate the effective of acupoint thread-embedding therapy for ataxia children with cerebral palsy. METHODS: A total of 70 ataxia children with cerebral palsy and a Gross Motor Function Measure (GMFM, Dimension B) score of <35 were enrolled and randomly divided into thread-embedding group and control group, with 35 children in each group, and 2 children in the thread-embedding group were lost to follow-up. The children in the control group were given routine rehabilitation treatment, including physical therapy, spleen-strengthening, kidney-nourishing, and Governor Vessel-regulating massage, vibroacoustic therapy, and scalp acupuncture, and those in the thread-embedding group were given thread-embedding therapy at the acupoints of Jianyu (LI15), Jianliao (SJ14), Tianzong (SI11), Tianshu (ST25), and HuatuoJiaji points (C4, L1 and L4) in addition to the treatment in the control group, with 6-8 acupoints selected each time, once a week. Each course of treatment was 4 weeks, with an interval of one week between two courses of treatment, and the children were treated for 3 courses. Level of sitting scale (LSS), incurvation reflex, and GMFM score were recorded to evaluate the improvement in sitting ability and clinical outcome. RESULTS: Both groups had significant improvements in LSS, incurvation reflex, and GMFM (Dimension A and B) score after treatment (P<0.01), and the thread-embedding group had significantly greater improvements than the control group (P<0.01). The thread-embedding group had a significantly higher overall response rate than the control group (90.9% [30/33] vs 68.5% [24/35], P<0.01). CONCLUSION: In addition to routine rehabilitation treatment, acupoint thread-embedding therapy can effectively suppress primitive reflex in ataxia children with cerebral palsy and significantly promote their sitting ability, and therefore, it is an effective acupuncture treatment method for ataxia children with cerebral palsy.


Assuntos
Pontos de Acupuntura , Paralisia Cerebral , Ataxia , Paralisia Cerebral/terapia , Criança , Humanos , Postura Sentada
10.
Gait Posture ; 74: 236-241, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31563825

RESUMO

BACKGROUND: Persons with unilateral lower-limb loss are at increased risk for developing chronic low back pain. Aberrant trunk and pelvis motor behavior secondary to lower-limb loss potentially alters trunk postural control and increases demands on the trunk musculature for stability. However, it is unclear whether trunk postural control is associated with the presence or chronicity of low back pain within this population. RESEARCH QUESTION: Is there a potential role of impaired trunk postural control among persons with lower limb loss and chronic low back pain? METHODS: Two groups of males with unilateral lower-limb loss (n = 18 with chronic low back pain; n = 13 without pain) performed an unstable sitting task. Trunk postural control was characterized using traditional and non-linear measures derived from center-of-pressure time series, as well as trunk kinematics and the ratio of lumbar to thoracic erector spinae muscle activations. RESULTS: Traditional and non-linear center-of-pressure measures and trunk muscle activation ratios were similar between groups, while participants with chronic low back pain demonstrated greater trunk motion and reduced local dynamic stability. SIGNIFICANCE: Our results suggest that persons with both lower-limb loss and chronic low back pain exhibit impaired trunk postural control compared to those with limb loss but without pain. Aberrant trunk motor behavior may be a response to altered functional requirements of walking with a prosthesis. An inability to adequately control the trunk could lead to spinal instability and pain in the presence of repetitive exposure to aberrant motor behavior of these proximal structures during everyday activities.


Assuntos
Amputados , Dor Lombar/fisiopatologia , Extremidade Inferior/lesões , Equilíbrio Postural/fisiologia , Postura Sentada , Tronco/fisiologia , Adulto , Análise de Variância , Fenômenos Biomecânicos , Doença Crônica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/fisiologia
11.
Int J Sports Med ; 40(13): 818-824, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31499563

RESUMO

Interrupting prolonged sitting with short multiple bouts of moderate-intensity physical activity (PA) can improve postprandial cardiometabolic risk markers. This study examined the effect of high and low frequency PA bouts (matched for total PA duration and energy expenditure) on postprandial cardiometabolic responses when compared with prolonged sitting. In this three-condition randomised crossover trial, 14 sedentary, inactive females (33.8±13.4 years, BMI 27.1±6.3 kg/m2) completed 3, 7.5 h conditions: 1) prolonged sitting (SIT), 2) high-frequency PA breaks (HIGH-FREQ) consisting of 15 ×2 min bouts of moderate-intensity treadmill PA every 30 min, and 3) low-frequency PA breaks (LOW-FREQ) consisting of 3 ×10 min bouts of moderate-intensity treadmill PA every 180 min. The PA bouts were performed at 65% of peak oxygen uptake. Net incremental area under the curve (iAUC) for each 7.5 h condition was calculated for glucose, insulin and triacylglycerol (TAG) concentrations. Insulin iAUC was significantly (p<0.026) lower during HIGH-FREQ (mean [95%CI]; 82.86 [55.02, 110.70] µU/mL∙7.5 h) than LOW-FREQ (116.61 [88.50, 144.73] µU/mL∙7.5 h) and SIT (119.98 [92.42, 147.53] µU/mL∙7.5 h). Glucose and TAG iAUC did not differ between conditions. Engaging in higher-frequency PA breaks may be effective in attenuating postprandial insulin responses compared with lower-frequency PA breaks and prolonged sitting.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Metabolismo Energético/fisiologia , Exercício/fisiologia , Período Pós-Prandial/fisiologia , Postura Sentada , Adulto , Área Sob a Curva , Glicemia/metabolismo , Estudos Cross-Over , Feminino , Humanos , Insulina/sangue , Pessoa de Meia-Idade , Fatores de Risco , Triglicerídeos/sangue , Adulto Jovem
12.
BMC Public Health ; 19(1): 1070, 2019 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-31395038

RESUMO

BACKGROUND: A prospective study was conducted to investigate the effects of helmet nonuse and seating position on patterns and severity of motorcycle injuries among child passengers in Taiwan. METHODS: In total, 305 child passengers aged ≤14 years who visited the emergency departments of three teaching hospitals following a motorcycle crash were recruited. Children's injury data were collected from medical records, and their riding behaviors along with operators' demographics were sourced from telephone interviews. Parental responses over the telephone about children's riding behaviors were checked by roadside observations. RESULTS: Results of the multivariable logistic regression analysis revealed that compared to child passengers aged ≥7 years, those aged ≤3 (odds ratio (OR), 2.88; 95% confidence interval (CI), 1.37~6.06) and 4~6 years (OR, 2.93; 95% CI, 1.50~5.70) were significantly more likely to have sustained a head/face injury, while those aged 4~6 years (OR, 2.76; 95% CI, 1.01~7.55) were significantly more likely to have sustained a severe injury. Compared to child passengers who were wearing a full-coverage helmet, those who were not wearing a helmet were significantly more likely to have sustained a head/face injury (OR, 3.12; 95% CI, 1.02~9.52) and a severe injury (OR, 3.02; 95% CI, 1.19~7.62). Children seated in front of the operator were significantly more likely to have experienced a head/face injury (OR, 2.22; 95% CI, 1.25~3.94) than those seated behind the operator. For each increment in the riding speed of 1 km/h, the odds of a severe injury to child passengers increased by 5% (OR, 1.05; 95% CI, 1.01~1.09). CONCLUSIONS: For the safety of child motorcycle passengers, laws on a minimum age restriction, helmet use, an adequate seating position, and riding speed need to be enacted and comprehensively enforced.


Assuntos
Acidentes de Trânsito/estatística & dados numéricos , Dispositivos de Proteção da Cabeça/estatística & dados numéricos , Motocicletas , Postura Sentada , Ferimentos e Lesões/epidemiologia , Adolescente , Criança , Pré-Escolar , Serviço Hospitalar de Emergência , Feminino , Hospitais de Ensino , Humanos , Masculino , Registros Médicos , Estudos Prospectivos , Taiwan/epidemiologia , Índices de Gravidade do Trauma
13.
Rev Bras Epidemiol ; 22: e190050, 2019 Aug 22.
Artigo em Português, Inglês | MEDLINE | ID: mdl-31460665

RESUMO

INTRODUCTION: The excessive sitting time involved in activities of low energy expenditure (sedentary behavior) can contribute to the development of chronic diseases. Assessing factors related to this behavior in a population is important to identify its most vulnerable segments. OBJECTIVE: To describe sitting time distribution in the adult population of São Paulo City according to sociodemographic and environmental characteristics and health conditions. METHODS: This is a cross-sectional study involving 2,512 individuals, aged 20 to 65 years, who participated in the Health Survey in the City of São Paulo (Inquérito de Saúde no Município de São Paulo - ISA-Capital) 2015. Data relating to sitting time were collected using the International Physical Activity Questionnaire (IPAQ), initially analyzed continuously, and, afterward, dichotomized by the median to analyze categorical variables. RESULTS: The total sitting time median in the sample was 180 min/day. The variables that, after adjustments, remained related to sedentary behavior were: schooling (prevalence ratio - PR = 1.41; 95% confidence interval - 95%CI 1.35 - 1.48); marital status (PR = 1.05; 95%CI 1.02 - 1.08); neighborhood safety (PR = 0.96; 95%CI 0.93 - 0.99); age (PR = 0.91; 95%CI 0.87 - 0.95); income (PR = 1.07; 95%CI 1.00 - 1.15); self-rated health (PR = 1.03; 95%CI 1.01 - 1.07), and gender (PR = 0.96; 95%CI 0.94 - 0.99). CONCLUSION: The most vulnerable groups to sedentary behavior in this population are: younger males, with higher schooling and income, who live in neighborhoods considered safe, unmarried, and with negative self-rated health.


Assuntos
Comportamento Sedentário , Postura Sentada , Adulto , Distribuição por Idade , Fatores Etários , Idoso , Brasil/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Valores de Referência , Autorrelato , Distribuição por Sexo , Fatores Sexuais , Fatores Socioeconômicos , Fatores de Tempo
14.
Artigo em Inglês | MEDLINE | ID: mdl-31416112

RESUMO

High amounts of sedentary behaviour, such as sitting, can lead to adverse health consequences. Interventions to break up prolonged sitting in the workplace have used active workstations, although few studies have used behaviour change theory. This study aimed to combine the Theoretical Domains Framework (TDF) and the Capability, Opportunity, and Motivation to Behaviour system (COM-B) to investigate perceived barriers and facilitators to breaking up sitting in desk-based office workers. Semi-structured interviews with 25 desk-based employees investigated barriers and facilitators to breaking up sitting in the workplace. Seven core inductive themes were identified: 'Knowledge-deficit sitting behaviour', 'Willingness to change', 'Tied to the desk', 'Organisational support and interpersonal influences', 'Competing motivations', 'Emotional influences', and 'Inadequate cognitive resources for action'. These themes were then deductively mapped to 11 of the 14 TDF domains and five of the six COM-B constructs. Participants believed that high amounts of sitting had adverse consequences but lacked knowledge regarding recommendations and were at times unmotivated to change. Physical and social opportunities were identified as key influences, including organisational support and height-adjustable desks. Future research should identify intervention functions, policy categories and behaviour change techniques to inform tailored interventions to change sitting behaviour of office workers.


Assuntos
Promoção da Saúde/métodos , Motivação , Movimento , Saúde do Trabalhador , Comportamento Sedentário , Postura Sentada , Local de Trabalho/psicologia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
15.
BMC Public Health ; 19(1): 1126, 2019 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-31420033

RESUMO

BACKGROUND: The workplace is a prominent domain for excessive sitting. The consequences of increased sitting time include adverse health outcomes such as cardiovascular disease and poor mental wellbeing. There is evidence that breaking up sitting could improve health, however, any such intervention in the workplace would need to be informed by a theoretical evidence-based framework. The aim of this study was to use the Behaviour Change Wheel (BCW) to develop a tailored intervention to break up and reduce workplace sitting in desk-based workers. METHODS: The BCW guide was followed for this qualitative, pre-intervention development study. Semi-structured interviews were conducted with 25 office workers (26-59 years, mean age 40.9 [SD = 10.8] years; 68% female) who were purposively recruited from local council offices and a university in the East of England region. The interview questions were developed using the Theoretical Domains Framework (TDF). Transcripts were deductively analysed using the COM-B (Capability, Opportunity, Motivation - Behaviour) model of behaviour. The Behaviour Change Technique Taxonomy Version 1 (BCTv1) was thereafter used to identify possible strategies that could be used to facilitate change in sitting behaviour of office workers in a future intervention. RESULTS: Qualitative analysis using COM-B identified that participants felt that they had the physical Capability to break up their sitting time, however, some lacked the psychological Capability in relation to the knowledge of both guidelines for sitting time and the consequences of excess sitting. Social and physical Opportunity was identified as important, such as a supportive organisational culture (social) and the need for environmental resources (physical). Motivation was highlighted as a core target for intervention, both reflective Motivation, such as beliefs about capability and intention and automatic in terms of overcoming habit through reinforcement. Seven intervention functions and three policy categories from the BCW were identified as relevant. Finally, 39 behaviour change techniques (BCTs) were identified as potential active components for an intervention to break up sitting time in the workplace. CONCLUSIONS: The TDF, COM-B model and BCW can be successfully applied through a systematic process to understand the drivers of behaviour of office workers to develop a co-created intervention that can be used to break up and decrease sitting in the workplace. Intervention designers should consider the identified BCW factors and BCTs when developing interventions to reduce and break up workplace sitting.


Assuntos
Promoção da Saúde/métodos , Saúde do Trabalhador , Postura Sentada , Local de Trabalho/psicologia , Adulto , Inglaterra , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação , Cultura Organizacional , Pesquisa Qualitativa , Fatores de Tempo , Local de Trabalho/organização & administração
16.
IEEE Int Conf Rehabil Robot ; 2019: 570-576, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31374691

RESUMO

Postural responses to unstable conditions or perturbations are important predictors of the risk of falling and can reveal balance deficits in people with neurological disorders, such as Parkinson's Disease (PD). However, there is a lack of evidences related to devices and protocols providing a comprehensive and quantitative evaluation of postural responses in different stability conditions. We tested ten people with PD and ten controls on a robotic platform capable to provide different mechanical interactions and to measure the center of pressure displacement, while trunk acceleration was recorded with a sensor placed on the sternum. We evaluated performance while maintaining upright posture in unperturbed, perturbed, and unstable conditions. The latter was tested while standing and sitting. We measured whether the proposed exercises and metrics could highlight differences in postural control. Participants with PD had worse performance metrics when standing under unperturbed or unstable conditions, and when sitting on the unstable platform. PD subjects in response to a forward perturbation showed bigger trunk oscillations coupled with a sharper increase of the CoP backward displacement. These responses could be due to higher stiffness of lower limb which leads to postural instability. The exercises and the proposed metrics highlighted differences in postural control, hence they can be used in clinical environment for the assessment and progression of postural impairments.


Assuntos
Doença de Parkinson/fisiopatologia , Equilíbrio Postural , Robótica , Postura Sentada , Posição Ortostática , Acidentes por Quedas/prevenção & controle , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
IEEE Int Conf Rehabil Robot ; 2019: 587-592, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31374694

RESUMO

This paper proposes a robotic exoskeleton chair, named ChairX, for providing sitting assistance for the industrial workers who need to carry out tasks at different crouched postures repetitively. It can act as a customizable chair to support bodyweight for relieving the lower extremity and provide freedom for ambulation when moving between workstations. In comparison to the predecessors, the ChairX is designed to assist the user for assuming crouched positions with forward- as well as backward-inclined leg angles. Moreover, it is flexible to provide sitting assistance at different heights to ensure ergonomics at work The ChairX includes a knee-centered locking mechanism on the lateral side and an active linkage mechanism on the posterior of the leg to support the weight of the user at various seated positions. A mathematical model was formulated to optimize the system parameters and a prototype was built to carry out the physical tests. The results revealed that ChairX can maintain stability and reduce the musculoskeletal strains effectively, thus has the potential to improve the quality of work.


Assuntos
Desenho de Equipamento , Exoesqueleto Energizado , Extremidade Inferior/fisiologia , Modelos Biológicos , Postura Sentada , Adulto , Fenômenos Biomecânicos , Ergonomia , Humanos , Masculino
18.
BMC Musculoskelet Disord ; 20(1): 360, 2019 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-31391035

RESUMO

BACKGROUND: Strength testing of the serratus anterior muscle with hand held dynamometry (HDD) in supine subjects has low reproducibility, and is influenced by compensatory activity of other muscles like the pectoralis major and upper trapezius. Previously, two manual maximum voluntary isometric contraction tests of the serratus anterior muscle were reported that recruited optimal surface electromyography (sEMG) activity in a sitting position. We adapted three manual muscle tests to make them suitable for HHD and investigated their validity and reliability. METHODS: Twenty-one healthy adults were examined by two assessors in one supine and two seated positions. Each test was repeated twice. Construct validity was determined by evaluating force production (assessed with HHD) in relation to sEMG of the serratus anterior, upper trapezius and pectoralis major muscles, comparing the three test positions. Intra- and interrater reliability were determined by calculating intra-class correlation coefficients (ICC) smallest detectable change (SDC) and standard error of measurement (SEM). RESULTS: Serratus anterior muscle sEMG activity was most isolated in a seated position with the humerus in 90° anteflexion in the scapular plane. This resulted in the lowest measured force levels in this position with a mean force of 296 N (SEM 15.8 N). Intrarater reliability yielded an ICC of 0.658 (95% CI 0.325; 0.846) and an interrater reliability of 0.277 (95% CI -0.089;0.605). SDC was 127 Newton, SEM 45.8 Newton. CONCLUSION: The results indicate that validity for strength testing of the serratus anterior muscle is optimal with subjects in a seated position and the shoulder flexed at 90° in the scapular plane. Intrarater reliability is moderate and interrater reliability of this procedure is poor. However the high SDC values make it difficult to use the measurement in repeated measurements.


Assuntos
Dinamômetro de Força Muscular , Força Muscular , Músculo Esquelético/fisiologia , Ombro/fisiologia , Adulto , Eletromiografia , Feminino , Voluntários Saudáveis , Humanos , Contração Isométrica/fisiologia , Masculino , Reprodutibilidade dos Testes , Lesões do Ombro/diagnóstico , Postura Sentada , Decúbito Dorsal , Adulto Jovem
19.
Artigo em Inglês | MEDLINE | ID: mdl-31337001

RESUMO

Acute bouts of uninterrupted sitting has been associated with discomfort and fatigue in adult populations. However, little is known regarding the impact of uninterrupted sitting on such outcomes among college students. Understanding these relations would be useful for informing best practice and future interventions. The present study explored the relation between uninterrupted sitting and perceived levels of physical discomfort and sleepiness among college students in a real classroom setting. We recruited 54 undergraduate students enrolled in a single class at a Midwestern university. Participants remained seated throughout a 2.5 h lecture while completing the Stanford Sleepiness Scale (SSS) and General Comfort Scale (GCS) every 15 min. Linear mixed effect model analyses were used to determine the relations between the independent and dependent variables and the duration at which students reported significant impairments in discomfort and/or sleepiness. Classroom sitting time was associated with increases in discomfort (r = 0.28, p < 0.01) and sleepiness (r = 0.30, p < 0.01). Students reported significant impairments in discomfort and sleepiness after 75 and 15 min, respectively. These findings support further research into the acceptability, feasibility and efficacy of interventions designed to interrupt classroom sitting on discomfort, sleepiness and measures of academic performance.


Assuntos
Fadiga , Postura Sentada , Estudantes , Desempenho Acadêmico , Adolescente , Adulto , Feminino , Humanos , Masculino , Meio-Oeste dos Estados Unidos , Universidades , Adulto Jovem
20.
Geriatr Nurs ; 40(6): 629-633, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31324417

RESUMO

This study aimed to identify the association between sitting time and orthopedic conditions in Korean older adults. Data from adults aged ≥65 years from the 6th Korea National Health and Nutrition Examination Survey (2014-2015) were used for analysis (n = 3,011). Sitting time ≥7.5 h/day was significantly associated with knee joint (OR = 1.41, 95% CI: 1.11, 1.79), hip joint (OR = 1.54, 95% CI: 1.17, 2.03), and low back pain (OR = 1.44, 95% CI: 1.19, 1.74) when adjusted for sex, age, obesity, housing type, family income, education, and marital status in multiple logistic regression analyses. These findings imply that appropriate pain management according to sociodemographic characteristics in orthopedic conditions are necessary to reduce excessive sitting time in Korean older adults.


Assuntos
Dor Musculoesquelética/epidemiologia , Dor Musculoesquelética/psicologia , Postura Sentada , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Articulação do Quadril , Humanos , Articulação do Joelho , Dor Lombar/etiologia , Masculino , Inquéritos Nutricionais , República da Coreia/epidemiologia , Comportamento Sedentário , Autorrelato , Fatores de Tempo
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