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Article
Publication date: 23 February 2018

Maxwell Fordjour Antwi-Afari, Heng Li, David John Edwards, Erika Anneli Pärn, De-Graft Owusu-Manu, Joonoh Seo and Arnold Yu Lok Wong

Work-related low back disorders (LBDs) are prevalent among rebar workers although their causes remain uncertain. The purpose of this study is to examine the self-reported…

Abstract

Purpose

Work-related low back disorders (LBDs) are prevalent among rebar workers although their causes remain uncertain. The purpose of this study is to examine the self-reported discomfort and spinal biomechanics (muscle activity and spinal kinematics) experienced by rebar workers.

Design/methodology/approach

In all, 20 healthy male participants performed simulated repetitive rebar lifting tasks with three different lifting weights, using either a stoop (n = 10) or a squat (n = 10) lifting posture, until subjective fatigue was reached. During these tasks, trunk muscle activity and spinal kinematics were recorded using surface electromyography and motion sensors, respectively.

Findings

A mixed-model, repeated measures analysis of variance revealed that an increase in lifting weight significantly increased lower back muscle activity at L3 level but decreased fatigue and time to fatigue (endurance time) (p < 0.05). Lifting postures had no significant effect on spinal biomechanics (p < 0.05). Test results revealed that lifting different weights causes disproportional loading upon muscles, which shortens the time to reach working endurance and increases the risk of developing LBDs among rebar workers.

Research limitations/implications

Future research is required to: broaden the research scope to include other trades; investigate the effects of using assistive lifting devices to reduce manual handling risks posed; and develop automated human condition-based solutions to monitor trunk muscle activity and spinal kinematics.

Originality/value

This study fulfils an identified need to study laboratory-based simulated task conducted to investigate the risk of developing LBDs among rebar workers primarily caused by repetitive rebar lifting.

Details

Construction Innovation, vol. 18 no. 2
Type: Research Article
ISSN: 1471-4175

Keywords

Article
Publication date: 10 July 2017

Maxwell Fordjour Antwi-Afari, Heng Li, David John Edwards, Erika Anneli Pärn, JoonOh Seo and Arnold Wong

Repetitive lifting tasks have detrimental effects upon balance control and may contribute toward fall injuries, yet despite this causal linkage, risk factors involved…

Abstract

Purpose

Repetitive lifting tasks have detrimental effects upon balance control and may contribute toward fall injuries, yet despite this causal linkage, risk factors involved remain elusive. The purpose of this paper is to evaluate the effects of different weights and lifting postures on balance control using simulated repetitive lifting tasks.

Design/methodology/approach

In total, 20 healthy male participants underwent balance control assessments before and immediately after a fatiguing repetitive lifting tasks using three different weights in a stoop (ten participants) or a squat (ten participants) lifting posture. Balance control assessments required participants to stand still on a force plate with or without a foam (which simulated an unstable surface) while center of pressure (CoP) displacement parameters on the force plate was measured.

Findings

Results reveal that: increased weight (but not lifting posture) significantly increases CoP parameters; stoop and squat lifting postures performed until subjective fatigue induce a similar increase in CoP parameters; and fatigue adversely effected the participant’s balance control on an unstable surface vis-à-vis a stable surface. Findings suggest that repetitive lifting of heavier weights would significantly jeopardize individuals’ balance control on unstable supporting surfaces, which may heighten the risk of falls.

Originality/value

This research offers an entirely new and novel approach to measuring the impact that different lifting weights and postures may have upon worker stability and consequential fall incidents that may arise.

Details

International Journal of Building Pathology and Adaptation, vol. 35 no. 3
Type: Research Article
ISSN: 2398-4708

Keywords

Article
Publication date: 10 May 2019

Maxwell Fordjour Antwi-Afari, Heng Li, Johnny Kwok-Wai Wong, Olugbenga Timo Oladinrin, Janet Xin Ge, JoonOh Seo and Arnold Yu Lok Wong

Sensing- and warning-based technologies are widely used in the construction industry for occupational health and safety (OHS) monitoring and management. A comprehensive…

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Abstract

Purpose

Sensing- and warning-based technologies are widely used in the construction industry for occupational health and safety (OHS) monitoring and management. A comprehensive understanding of the different types and specific research topics related to the application of sensing- and warning-based technologies is essential to improve OHS in the construction industry. The purpose of this paper is to examine the current trends, different types and research topics related to the applications of sensing- and warning-based technology for improving OHS through the analysis of articles published between 1996 and 2017 (years inclusive).

Design/methodology/approach

A standardized three-step screening and data extraction method was used. A total of 87 articles met the inclusion criteria.

Findings

The annual publication trends and relative contributions of individual journals were discussed. Additionally, this review discusses the current trends of different types of sensing- and warning-based technology applications for improving OHS in the industry, six relevant research topics, four major research gaps and future research directions.

Originality/value

Overall, this review may serve as a spur for researchers and practitioners to extend sensing- and warning-based technology applications to improve OHS in the construction industry.

Details

Engineering, Construction and Architectural Management, vol. 26 no. 8
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 27 July 2021

Shahnawaz Anwer, Heng Li, Maxwell Fordjour Antwi-Afari, Waleed Umer, Imran Mehmood and Arnold Yu Lok Wong

Since construction workers often need to carry various types of loads in their daily routine, they are at risk of sustaining musculoskeletal injuries. Additionally…

Abstract

Purpose

Since construction workers often need to carry various types of loads in their daily routine, they are at risk of sustaining musculoskeletal injuries. Additionally, carrying a load during walking may disturb their walking balance and lead to fall injuries among construction workers. Different load carrying techniques may also cause different extents of physical exertion. Therefore, the purpose of this paper is to examine the effects of different load-carrying techniques on gait parameters, dynamic balance, and physiological parameters in asymptomatic individuals on both stable and unstable surfaces.

Design/methodology/approach

Fifteen asymptomatic male participants (mean age: 31.5 ± 2.6 years) walked along an 8-m walkway on flat and foam surfaces with and without a load thrice using three different techniques (e.g. load carriage on the head, on the dominant shoulder, and in both hands). Temporal gait parameters (e.g. gait speed, cadence, and double support time), gait symmetry (e.g. step time, stance time, and swing time symmetry), and dynamic balance parameters [e.g. anteroposterior and mediolateral center of pressure (CoP) displacement, and CoP velocity] were evaluated. Additionally, the heart rate (HR) and electrodermal activity (EDA) was assessed to estimate physiological parameters.

Findings

The gait speed was significantly higher when the load was carried in both hands compared to other techniques (Hand load, 1.02 ms vs Head load, 0.82 ms vs Shoulder load, 0.78 ms). Stride frequency was significantly decreased during load carrying on the head than the load in both hands (46.5 vs 51.7 strides/m). Step, stance, and swing time symmetry were significantly poorer during load carrying on the shoulder than the load in both hands (Step time symmetry ration, 1.10 vs 1.04; Stance time symmetry ratio, 1.11 vs 1.05; Swing time symmetry ratio, 1.11 vs 1.04). The anteroposterior (Shoulder load, 17.47 mm vs Head load, 21.10 mm vs Hand load, −5.10 mm) and mediolateral CoP displacements (Shoulder load, −0.57 mm vs Head load, −1.53 mm vs Hand load, −3.37 ms) significantly increased during load carrying on the shoulder or head compared to a load in both hands. The HR (Head load, 85.2 beats/m vs Shoulder load, 77.5 beats/m vs No load, 69.5 beats/m) and EDA (Hand load, 14.0 µS vs Head load, 14.3 µS vs Shoulder load, 14.1 µS vs No load, 9.0 µS) were significantly larger during load carrying than no load.

Research limitations/implications

The findings suggest that carrying loads in both hands yields better gait symmetry and dynamic balance than carrying loads on the dominant shoulder or head. Construction managers/instructors should recommend construction workers to carry loads in both hands to improve their gait symmetry and dynamic balance and to lower their risk of falls.

Practical implications

The potential changes in gait and balance parameters during various load carrying methods will aid the assessment of fall risk in construction workers during loaded walking. Wearable insole sensors that monitor gait and balance in real-time would enable safety managers to identify workers who are at risk of falling during load carriage due to various reasons (e.g. physical exertion, improper carrying techniques, fatigue). Such technology can also empower them to take the necessary steps to prevent falls.

Originality/value

This is the first study to use wearable insole sensors and a photoplethysmography device to assess the impacts of various load carrying approaches on gait parameters, dynamic balance, and physiological measures (i.e. HR and EDA) while walking on stable and unstable terrains.

Details

Engineering, Construction and Architectural Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 15 January 2020

Hay Wong

Electron beam additive manufacturing (EBAM) is a popular additive manufacturing (AM) technique used by many industrial sectors. In EBAM process monitoring, data analysis…

Abstract

Purpose

Electron beam additive manufacturing (EBAM) is a popular additive manufacturing (AM) technique used by many industrial sectors. In EBAM process monitoring, data analysis is focused on information extraction directly from the raw data collected in-process, i.e. thermal/optical/electronic images, and the comparison between the collected data and the computed tomography/microscopy images generated after the EBAM process. This paper aims to postulate that a stack of bitmaps could be generated from the computer-aided design (CAD) at a range of Z heights and user-defined region of interest during file preparation of the EBAM process, and serve as a reference image set.

Design/methodology/approach

Comparison between that and the workpiece images collected during the EBAM process could then be used for quality assessment purposes. In spite of the extensive literature on CAD slicing and contour generation for AM process preparation, the method of bitmap generation from the CAD model at different field of views (FOVs) has not been disseminated in detail. This article presents a piece of custom CAD-bitmap generation software and an experiment demonstrating the application of the software alongside an electronic imaging system prototype.

Findings

Results show that the software is capable of generating binary bitmaps with user-defined Z heights, image dimensions and image FOVs from the CAD model; and can generate reference bitmaps to work with workpiece electronic images for potential pixel-to-pixel image comparison.

Originality/value

It is envisaged that this CAD-bitmap image generation ability opens up new opportunities in quality assessment for the in-process monitoring of the EBAM process.

Book part
Publication date: 18 April 2012

Dong Liu, Chi-Sum Wong and Ping-Ping Fu

Leaders’ emotional intelligence (EI), personality, and empowering behavior have been heavily studied in the organizational behavior literature. To date, the majority of…

Abstract

Leaders’ emotional intelligence (EI), personality, and empowering behavior have been heavily studied in the organizational behavior literature. To date, the majority of research on EI and personality has shown their significant influence on personal outcomes. It has also been suggested that empowerment is a fundamental psychological mechanism underlying follower outcomes. Nevertheless, little attention has been paid to the effect of team leaders’ EI and personality on team outcomes and the potential mediating effect of team leaders’ empowering behavior. In this study, we developed theoretical rationale and empirically tested the effect of team leaders’ EI and personality on team climate and the mediating role that team leaders’ empowering behavior plays in this relationship. The results supported most of our hypothesized relationships, that is, the positive effects of team leaders’ EI and agreeableness on team climate were mediated by team leaders’ empowering behavior, whereas team leaders’ openness to new experience was not related to empowering behavior and team climate. Finally, theoretical and practical implications were discussed.

Details

Advances in Global Leadership
Type: Book
ISBN: 978-1-78052-002-5

Article
Publication date: 29 June 2022

Julio César Acosta-Prado, Rodrigo Arturo Zárate-Torres, Arnold Alejandro Tafur-Mendoza, Ricardo Prada-Ospina and Claudia Fabiola Rey Sarmiento

While the relationship between some leadership styles and emotional intelligence has been studied, leadership practices and emotional intelligence have not been studied…

Abstract

Purpose

While the relationship between some leadership styles and emotional intelligence has been studied, leadership practices and emotional intelligence have not been studied for an understanding of how both variables enable a leader to look for pathways to goal attainment. This study aims to examine the impact of leadership practices on pathways to goal attainment while considering the mediating effect of emotional intelligence.

Design/methodology/approach

This study was empirical with an associative strategy. The type of study was explanatory, and latent variables design was followed. The sample consists of 496 Colombian managers, obtained through a non-probability sampling (purposive sample), who work in companies located in Bogota, Colombia. For measuring the variables, three instruments were used, Leadership Practices Inventory, Adult Dispositional Hope Scale and Wong and Law Emotional Intelligence Scale.

Findings

Results from this study suggest that the relationship between leadership practices (model the way, inspire a shared vision and enable others to act) and pathways to goal attainment is mediated by emotional intelligence. Also, leadership practices and emotional intelligence explained 45.60% of the variability of the pathways to goal attainment.

Originality/value

The effectiveness of leadership practices can be explained through the hope they have about the future by using emotional intelligence as an influencing strategy. This study aims to explain how emotional intelligence helps leaders to look for pathways to goal attainment.

Details

International Journal of Organizational Analysis, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1934-8835

Keywords

Book part
Publication date: 21 November 2018

Lan Guo, Theresa Libby, Bernard Wong-On-Wing and Dan Yang

The multiple performance measures in strategic performance measurement systems should be selected to represent a set of causally linked strategic drivers and outcomes. The…

Abstract

The multiple performance measures in strategic performance measurement systems should be selected to represent a set of causally linked strategic drivers and outcomes. The pattern of results thus can provide information concerning the proper execution of the strategy (i.e., the performance evaluation role) and the strength of the cause-and-effect linkages assumed by the strategy (i.e., the strategy evaluation role). Unfortunately, managers’ tendency to re-evaluate the strategy when performance falls short of target is low in practice. Possible explanations include motivational and cognitive biases. We experimentally examine two decision aids, an attribution aid, and a decomposition aid, designed to help managers ease these challenges. Study 1 shows the decision aids, individually and in combination, increase managers’ tendency to re-examine a problematic strategy. Study 2 demonstrates the effectiveness of the two decision aids, when used together, under a different pattern of results and among a sample of more experienced managers.

Details

Advances in Accounting Behavioral Research
Type: Book
ISBN: 978-1-78756-543-2

Keywords

Book part
Publication date: 18 October 2017

Mélia Djabi and Sakura Shimada

The purpose of this article is to understand how academics in management deal with the concept of generation in the workplace. We begin by conducting an interdisciplinary…

Abstract

The purpose of this article is to understand how academics in management deal with the concept of generation in the workplace. We begin by conducting an interdisciplinary literature analysis, thereby elaborating a conceptual framework concerning generational diversity. This framework consists of four levels of analysis (society, career, organisation and occupation) and three dimensions (age, cohort and event/period). We then conduct a meta-analysis using this conceptual framework to analyse papers from the management field. The results from this analysis reveal the existence of a diversity of generational approaches, which focus on the dimensions of age and cohort on a societal level. Four factors seem to explain these results: the recent de-synchronisation of generational dimensions and levels, the novelty of theoretical models, the amplification of stereotypes by mass media and the methodologies employed by researchers. In sum, this article contributes to a more realistic view of generational diversity in the workplace for both academics and practitioners.

Details

Management and Diversity
Type: Book
ISBN: 978-1-78635-489-1

Keywords

Book part
Publication date: 17 September 2014

Anson Wong

Emphasising the significance of managing environmental and social issues for businesses, the chapter aims at highlighting the need of developing a non-financial risk…

Abstract

Purpose

Emphasising the significance of managing environmental and social issues for businesses, the chapter aims at highlighting the need of developing a non-financial risk management system for elevating corporate social responsibility (CSR) performance in China. Particularly, through discussing its importance, opportunities, and challenges.

Design and approach

Analysis and discussion of the chapter are based on multiple sources of information. Review of literature includes authoritative academic articles, reports from renowned global organisations, media coverage of corporations, and examples of business cases in China.

Findings

Several key findings are covered in the chapter. First of all, environmental and social concerns are usually being deemed as intangible issues that need to be properly articulated and managed by an effective non-financial risk management system for enhancing corporate sustainability in China. Secondly, through different interpretations of sustainability, links could be drawn for non-financial risk management and sustainability. Thirdly, by explaining the impacts from non-financial risk management to sustainable development and profits, the chapter has argued CSR as a clear business case for any company in China. Fourthly, challenges are also portrayed for the effective management of non-financial risk management by corporations. Finally, the need of a well-defined non-financial risk management system for helping businesses to be more competitive, thus, moving closer to sustainability in China and elsewhere is provided.

Social implications

Integrating environmental and social risks is critical to the effective management of any corporation’s real risks and to improve resource allocation in a sustainable fashion. This demands a systematic and strategic identification of issues through non-financial risk management. Most significantly, this chapter has shown the way this can be achieved by any corporation in China, and the concepts can be applied into other societies.

Originality/value

The contribution of the chapter is thought to be significant. Although there exists a wide body of research on sustainable development, risk management and CSR in China, there is limited insight into how corporations can effectively conceptualise such intangible or non-financial risks in relation to sustainability.

Details

Corporate Social Responsibility and Sustainability: Emerging Trends in Developing Economies
Type: Book
ISBN: 978-1-78441-152-7

Keywords

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