Objective To analyze and evaluate the effect of ship cabin color matching on the human physiological parameters.Methods Ten healthy male volunteers,with an age range of 19-31 and normal visual acuity and color vision,were all trainees recruited for the study.Heart rate,systolic pressure,diastolic pressure,contrast visual acuity and contrast visual sensitivity of the trainees were determined under 6 different cabin colors.Color codes were put in the order of 2#,6#,5#,4#,3# and 1# in accordance with the color warmth,with 2# being the cold color,6# the sub-cold color,5# the neutral color with cold deflection,4# the neutral color with warm deflection,2# the sub-warm color and 1 # the warm color.The test time cycle of each color scheme was 21 days.The effects of 6 cabin color schemes on the physiological parameters of the trainees were analyzed and evaluated by using TOPSIS (technique for order preference by similarity to an ideal solution) and cluster analysis.Results (1) Heart rate,systolic pressure and diastolic pressure of the trainees did not change with the changes in color scheme (P ＞ 0.05).In the same color scheme,heart rate,systolic pressure and diastolic pressure all fluctuated within normal ranges,without statistical significance (P ＞ 0.05).(2) In the 6 color schemes,average contrast visual acuity fluctuated within the ranges of 0.01-0.03.In the 3# color scheme,contrast visual acuity was the highest (4.98 ± 0.06),while contrast visual acuity in the 1 # color scheme was the lowest(4.95 ± 0.05).No statistical significance in contrast visual acuity could be seen in 6 color schemes(P ＞0.05).(3)In six different color environment schemes,there was statistical significance in contrast visual sensitivity,when the trainees were at 0.6 and 1.2 cycles per degree (P ＜0.05 and P ＜0.01).However,no statistical significance in contrast visual sensitivity could be noted at 2.4,4.8 and 9.6 cycles per degree(P ＞ 0.05).Conclusions Generally,heart rate,systolic pressure,diastolic pressure and contrast visual acuity of the trainees did not change with the changes in color schemes,while contrast visual sensitivity changed with the changes in color schemes of the cabin environment.The optimized sequence order of the 6 color schemes was 5#,6#,1#,3#,4# and 2#.The color scheme that had the least effect on the physiological parameters of the trainees was color scheme 5#,the neutral color with cold deflection.

Objective To analyze and evaluate the effect of ship cabin color matching on the human physiological parameters.Methods Ten healthy male volunteers,with an age range of 19-31 and normal visual acuity and color vision,were all trainees recruited for the study.Heart rate,systolic pressure,diastolic pressure,contrast visual acuity and contrast visual sensitivity of the trainees were determined under 6 different cabin colors.Color codes were put in the order of 2#,6#,5#,4#,3# and 1# in accordance with the color warmth,with 2# being the cold color,6# the sub-cold color,5# the neutral color with cold deflection,4# the neutral color with warm deflection,2# the sub-warm color and 1 # the warm color.The test time cycle of each color scheme was 21 days.The effects of 6 cabin color schemes on the physiological parameters of the trainees were analyzed and evaluated by using TOPSIS (technique for order preference by similarity to an ideal solution) and cluster analysis.Results (1) Heart rate,systolic pressure and diastolic pressure of the trainees did not change with the changes in color scheme (P ＞ 0.05).In the same color scheme,heart rate,systolic pressure and diastolic pressure all fluctuated within normal ranges,without statistical significance (P ＞ 0.05).(2) In the 6 color schemes,average contrast visual acuity fluctuated within the ranges of 0.01-0.03.In the 3# color scheme,contrast visual acuity was the highest (4.98 ± 0.06),while contrast visual acuity in the 1 # color scheme was the lowest(4.95 ± 0.05).No statistical significance in contrast visual acuity could be seen in 6 color schemes(P ＞0.05).(3)In six different color environment schemes,there was statistical significance in contrast visual sensitivity,when the trainees were at 0.6 and 1.2 cycles per degree (P ＜0.05 and P ＜0.01).However,no statistical significance in contrast visual sensitivity could be noted at 2.4,4.8 and 9.6 cycles per degree(P ＞ 0.05).Conclusions Generally,heart rate,systolic pressure,diastolic pressure and contrast visual acuity of the trainees did not change with the changes in color schemes,while contrast visual sensitivity changed with the changes in color schemes of the cabin environment.The optimized sequence order of the 6 color schemes was 5#,6#,1#,3#,4# and 2#.The color scheme that had the least effect on the physiological parameters of the trainees was color scheme 5#,the neutral color with cold deflection.