The effect of heat and physical stress on some fertility parameters among workers in a number of occupations

Abstract

This study was conducted to investigate the effect of heat and physical stress on workers in some occupations exposed to heat and physical stress. The study included 100 males working in occupations exposed to heat and physical stress in the city of Kirkuk, and they were distributed into four groups according to the profession in which they work by 25 males for each group (Group A: It included bakers , group B: included isogam workers , group C: included blacksmiths and group D: included construction workers), in addition to the control group, which included 20 males who do not work in the field of occupations exposed to heat and physical stress.The study included estimating testosterone concentration, total sperm count, and percentage of live, dead, normal and abnormal sperms. The results showed a significant decrease (p≤ 0.05) in the concentration of testosterone hormone in group A, B and C compared with the control group and there was no significant difference in group D compared with the control group.The results also showed a significant decrease (p≤ 0.05) in the total number of sperms in group A, B and C compared with the control group and there was no significant difference in group D compared with the control group.The results also showed a significant decrease (p≤ 0.05) in the percentage of live sperm in groups A and B compared to the control group, and there was no significant difference in groups C and D compared to the control group. The results also showed a significant increase (p≤ 0.05) in the percentage of dead sperm in groups A and B compared with the control group, and there was no significant difference in groups C and D compared to the control group.The results showed that there was a significant decrease (p≤ 0.05) in the percentage of normal sperm in group A, B and C compared to the control group, and there was no significant difference in group D compared with the control group. The results also showed that there was a significant increase (p≤ 0.05) in the percentage of abnormal sperms in group A, B and C compared to the control group, and there was no significant difference in group D compared to the control group.