Interactive Effect of noise and heat on Maximal Aerobic Capacity (VO2 max) in Students of Ahvaz Jundishapur University of Medical Sciences

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Fouladi Dehghi Behzad; Abedini Seyed Moslem; Karimpour Sanaz; AHMADI ANGALI KAMBIZ

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Journal: Journal of Health and Safety at Work Year:2019 | Volume:9 | Issue:3 Page(s): 191-199

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Title

Interactive Effect of noise and heat on Maximal Aerobic Capacity (VO2 max) in Students of Ahvaz Jundishapur University of Medical Sciences

Author(s)

Fouladi Dehghi Behzad | Abedini Seyed Moslem | Karimpour Sanaz | AHMADI ANGALI KAMBIZ | Issue Writer Certificate

Keywords

NoiseQ2

HeatQ1

Aerobic CapacityQ1

Abstract

Introduction: Determining the VO2 max of individuals is of great importance. The VO2 max refers to the maximum oxygen that can be consumed in the body in one minute and depends on factors such as physical conditions, environmental parameters, and physiological characteristics of the individual. . Noise and Heat are among the factors influencing VO2 max (also called maximal oxygen uptake or maximal Aerobic Capacity), which affects the performance of respiratory system, via different ways. Therefore, the purpose of this study was to investigate the simultaneous effect of Noise and Heat on VO2 max in Ahvaz university of medical sciences’ students Material and Methods: The present study was conducted on 50 volunteer students from the Ahvaz Jundishapur University of Medical Sciences, Iran. The VO2 max index was measured using the ergometer bicycle test and the Astrand protocol in nine modes of exposure to Heat (21, 38 and 48° C), WBGT (18. 34, 32. 46 and 41. 25° C) and Noise (75, 85 and 95 dB (A)). In order to carry out the test according to the Astrand protocol, the person pedaled on the bike for six minutes at a constant load and a speed of 50 rpm to increase the heart rate to more than 120 beats per minute. The heart rate was monitored while working with the ergometer bike using a Polar branded sensor mounted below the individual chest. SPSS vol. 22 software, Friedman test and paired t-test were used to analyze the data. Results: The mean VO2 max in the second test condition (Heat: 21° C, WBGT: 18. 34° C, Noise: 85 dB) and the third test condition (Heat: 21° C, WBGT: 18. 34° C, Noise: 95 dB) were not significantly different from the first (normal) mode, but the VO2 max value significantly decreased (P<0. 001) from the third mode to higher levels with increasing the levels of Heat and Noise. Conclusion: Since one of the objectives of ergonomics is to create an environment in consistent with human capacities, it is essential to have knowledge of VO2 max. Regarding the effect of Heat and Noise on VO2 max of individuals and also the direct relationship between VO2 max and PWC) Physical Work Capacity (, in order to protect the health of individuals and increase their productivity, it is necessary to carry out control measures in warm and noisy environments.

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APA: Copy

Fouladi Dehghi, Behzad, Abedini, Seyed Moslem, Karimpour, Sanaz, & AHMADI ANGALI, KAMBIZ. (2019). Interactive Effect of noise and heat on Maximal Aerobic Capacity (VO2 max) in Students of Ahvaz Jundishapur University of Medical Sciences. JOURNAL OF HEALTH AND SAFETY AT WORK, 9(3), 191-199. SID. https://sid.ir/paper/366753/en

Vancouver: Copy

Fouladi Dehghi Behzad, Abedini Seyed Moslem, Karimpour Sanaz, AHMADI ANGALI KAMBIZ. Interactive Effect of noise and heat on Maximal Aerobic Capacity (VO2 max) in Students of Ahvaz Jundishapur University of Medical Sciences. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2019;9(3):191-199. Available from: https://sid.ir/paper/366753/en

IEEE: Copy

Behzad Fouladi Dehghi, Seyed Moslem Abedini, Sanaz Karimpour, and KAMBIZ AHMADI ANGALI, “Interactive Effect of noise and heat on Maximal Aerobic Capacity (VO2 max) in Students of Ahvaz Jundishapur University of Medical Sciences,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 9, no. 3, pp. 191–199, 2019, [Online]. Available: https://sid.ir/paper/366753/en

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