International Journal of Occupational Hygiene 2017. 9(2):85-92.

Evaluating the Performance of American PCM and Iranian Spadana Gel Ice Cooling Vest on the Perceptual and Physiological Strain Score Indexs of Asaluyeh in Iran




The aim of this study was to compare the effect of change phase paraffin cooling vest and Iranian Spadana Cooling Vest on the perceptual strain score index (PeSI),physiological strain score index (PSI)of Asaluyeh in Iran. This cross-sectional interventional study was conducted in 2016 on 90 workers with an identical level of physical activity and uniforms in Asaluyeh, southern Iran .The questionnaires of PeSI, heat strain score index (HSSI)and PSI were also administered to assess the PeSI and the sweating while wearing the vests and in the control group. The WBGT index was measured for 120 min as well, and the checklist of individual strength (CIS) and the comfort assessment questionnaire were filled by the workers too. The repeated measures Test and the statistical analysis software SPSS 21 were used to analyze and compare the data. The WBGT mean index was 37.65°C for all the three groups. The mean scores of PeSI, HSSI, PSI, and CIS in the groups with paraffin change phase cooling vests and Iranian cooling vests had a statistically significant difference compared to the control group (P<0/001). Wearing the paraffin cooling vests and the Iranian cooling vests for 90 min can reduce acceptably and appropriately, the heat stress level of the users by decreasing the oral temperature, the heart rate, and the PeSI value while increasing the CIS score.


Spadana cooling vest and phase change paraffin vest, Physiological Strain Score Index (PSI), Perception Strain Score Index (PeSI), Checklist Individual Strength (CIS), heat stress, Assaluyeh

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Wing JF. Upper thermal tolerance limits for unimpaired mental performance. Aerospace Med1965; 36(10): 960-4.

Ghotbi Ravandi M, Salimi S, Khanjani N,Jafari MJ. Comparing the Association between Wet Bulb Globe Temperature (WBGT) and Heat Stress Score Index (HSSI) Thermal Indices with Physiological Parameters in a Melting. Int J Occup Hyg 2016; 8(1):9-13.

Pugh, Corbett JL, Johnson RH. Rectal Temperatures, Weight Losses, and Sweat Rates in Marathon Running.J PhysiolAnthropolAppl Human Sci1967; 23 (1): 347-352.

Zhou, Zhao CY, Tian Y. Review on Thermal Energy Storage with Phase Change Materials (PCMs) in Building Applications.Appl Energy 2012; 92(1):593-60.

Wyndham CH, Rogers GG, and Mitchell D. Acclimatization in a hot, humid environment: Cardiovascular adjustments. J PhysiolAnthropolAppl Human Sci1976;40(1):779-785.

Yaglou,Minard D. Control of heat casualties at military training centers.AMA Arch ind Health1957; 16(4): 302-16.

Mortazavi SB, DehghanShahreza H, Jafari MJ, Meraci MR, Khavanin A, Jahangiri M. Structural Equation Modeling Application to Determine Validity of the Structure of a Thermal Strain Screening Method . Journal of Health System Research2010; 6(4): 601-12. [In Persian].

Malchaire J, Gebhardt HJ, Piette A. Strategy for evaluation and prevention of risk due to work in thermal environments. Ann OccupHyg1999; 43(5): 367-376.

Nishihara N, Tanabe S-I, Hayama H, Komatsu M. A cooling vest for working comfortably in moderately hot Environment. J Physiol Anthropol Appl Human Sci2002;21(1):75-82.

Reinertsen RE, Faervik H, Holbo K, Nesbakken R, Reitan J, Royset A, et al. Optimizing the performance of phase change materials in personal protective clothing systems. Int J Occup Saf Ergon2008;14(1):43-53.

Bishop PA, Nunneley SA, Constable SH. Comparisons of air and liquid personal cooling for intermittent heavy work in moderate temperatures. The American Industrial Hygiene Association Journal (AIHA J)1991; 52(9):393-397.

ZalbaB, Marin JM, Cabeza LF, Mehling H. Review on thermal energy storage with phase change: materials, heat transfer analysis and applications. Applied Thermal Engineering2003; 23(3):251-283.

ZalbaB, Marin JM, Cabeza LF, Mehling H. Review on thermal energy storage with phase change: materials, heat transfer analysis and applications. Applied Thermal Engineering 2003; 23(3):251-283.

Ukrainczyk N, Kurajica S.Thermo physical comparison of five commercial paraffin waxes as latent heat storage materials. Chem Bio chem Eng Q2010;24(2):129-137.

Bendkowska W, Kłonowska M, Kopias K, Bogdan A. Thermal Manikin Evaluation of PCM Cooling Vests. FIBRES & TEXTILES in Eastern Europe 2010; 18(1 (78)): 70-74.

Hoorfarasat GH, Jafari MJ,Omidi L. Correlation between Heat Strain Score Index and WBGT Index with Physiological Parameters in a Glass Manufacturing Plant. Int J Occup Hyg 2015; 7(4):202-208.

Dehghan H, Mortazavi B, Jafari M, Maracy M. comparison between cardiac strain of normal weight and overweight workers in hot and humid weather of the south of Iran. Journal of Health System Research 2012;8(5):866-875.

Smolander J, Kuklane K, Gavhed D, Nilsson H, Holmer I. Effectiveness of a light-weight ice-vest for body cooling while wearing fire fighter's protective clothing in the heat. Int J Occup Saf Ergon 2004;10(2):111-117.

Gao C, Kuklane K, Wang F, Holmér I. Personal cooling with phase change materials to improve thermal comfort from a heat wave perspective. Indoor air 2012; 22(6):523-530.

Holmér I, Kuklane K, Gao C. Test of firefighter’s turnout gear in hot and humid air exposure. Int J Occup Saf Ergon2006; 12(4): 297-305.

Smolander J, kuklane k, Gavhed D,Nilsson , Holmer. effectiveness of a light–weight ice vest for body cooling while wearing fire fighters protective clothing in the heat.Int J Occup Saf Ergon2004;10(2):111-117.


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