An ergonomic assessment for sequencing of labor intensive task in construction industry in Cavite / b y Mark Joseph C. Calub and Lester Jhayke C. Semio

Theses (Bachelor of Science in Industrial Engineering) Cavite State University.

Includes bibliographical references.

College of Engineering, and Information Technology (CEIT)

CALUB, MARK JOSEPH C. and SERMO, LESTER JHAYKE C. An Ergonomic Assessment for Sequencing Labor Intensive Task in a Construction Industry in Cavite. Undergraduate Thesis. Bachelor of Science in Industrial Engineering. Cavite State University, Indang, Cavite. May 2017. Adviser: Engr. Gerry M. Castillo.
This study was conducted from August 2017 to April 2017 in Cavite to diminish the risk of amplifying work-related musculoskeletal disorder by controlling collective element of physical exposure to construction jobs in the sequence of the construction schedule of Cavite construction industry. Specifically, the study aimed to, l . identify the distinctive jobs and phases involved in the construction process; 2. classify the level of discomfort of the construction workers from the task in the construction process by the use of Cornell's musculoskeletal discomfort questionnaire; 3. determine the level of risk in the tasks in the construction process by the use of Rapid Entire Body Assessment and Rapid Upper Limb Assessment worksheet; 4. identify the relationship between the discomfort level to posture risk and musculoskeletal risk level; 5. compare the assessment outcome between two ergonomic tools; and 6. Improve the construction task sequence with consideration to musculoskeletal risk level.
Data were gathered through consultation with construction professionals, survey using Cornell's Musculoskeletal Discomfort Questionnaire and actual observation using Rapid Entire Body Assessment and Rapid Upper Limb Assessment worksheets. The survey was conducted from numerous active construction projects in Cavite, the two (2) respondents were randomly chosen from each Of the five (5) construction project for every construction task observed.

The interpretation of the gathered data was based on the REBA score evaluation matrix, RULA evaluation matrix and CMDQ scale pointing. From this, the majority of the respondents retorted that the majority of the construction tasks are mild to moderately discomforting, in line with this, the observations of the construction tasks surfaces to be at medium risk to musculoskeletal disorder.
Through statistical comparison, the relationship of discomfort level and risk levels is in positive moderately high correlation and in high significant level. The observation of posture risk levels and musculoskeletal risk level were compared. The two-risk level were found to be different in variances and means that were indicating different assessment patterns. Despite the independence of the two levels from one another, the statistical rise similarity of the two assessments were positively high.
The construction task evaluation, the level of risk to musculoskeletal disorder, was taken into consideration for creating new sequence of task for every phase of construction. The construction sequences were designed as; a. diminishing levels of musculoskeletal activities; and b. minimize repetitive levels of musculoskeletal activities. The task sequences were proposed to reduce the risk of musculoskeletal disorder to the workers of the construction industry and put forward to be instigated.

Submitted to the University Library T-7239