The experimental group of subjects has shown almost constant level of PR segment after 2 and 6 months of intervention without any statistical significance. Contrary to that there was a significant increase after 12 months of intervention in experimental group of subjects when compared with that of basal values. The mean PR segment value of this group on 0 day was estimated to be 0.041 ± 0.001 sec. However, at the subsequent follow-up periods, i.e. 2, 6 and 12 months the mean values were 0.041 ± 0.001, 0.041 ± 0.001 and 0.041 ± 0.001 sec. respectively (Table E 1).
Table E 1: Experimental group (n=100)
Duration | Mean (sec.) | SD | SD | 'A' |
0D | 0.041 | 0.0015 | 0.0001 | 0.408 NS |
2M | 0.041 | 0.0011 | 0.0001 | |
0D | 0.041 | 0.0015 | 0.0001 | 0.836 NS |
6M | 0.041 | 0.0013 | 0.0001 | |
0D | 0.041 | 0.0015 | 0.0001 | 0.131*** |
12M | 0.041 | 0.0011 | 0.0001 | |
2M | 0.041 | 0.0011 | 0.0001 | 1.53 NS |
6M | 0.041 | 0.0013 | 0.0001 | |
2M | 0.041 | 0.0011 | 0.0001 | 0.152*** |
12M | 0.041 | 0.0011 | 0.0001 | |
6M | 0.041 | 0.0013 | 0.0001 | 0.11*** |
12M | 0.041 | 0.0011 | 0.0001 |
In control group of subjects the PR segment remains in same range with no significant difference when compared with follow up intervals (Table E2).
Table E2: Control group
Duration | Mean (sec.) | SD | SE | 'A' |
0D | 0.041 | 0.0015 | 0.0001 | 5ns |
2M | 0.041 | 0.0015 | 0.0001 | |
0D | 0.041 | 0.0015 | 0.0001 | 5NS |
6M | 0.041 | 0.0015 | 0.0001 | |
0D | 0.041 | 0.0015 | 0.0001 | 1.888 NS |
12M | 0.041 | 0.0015 | 0.0001 | |
2M | 0.041 | 0.0015 | 0.0001 | 1.5 NS |
6M | 0.041 | 0.0015 | 0.0001 | |
2M | 0.041 | 0.0015 | 0.0001 | 1.5 NS |
12M | 0.041 | 0.0015 | 0.0001 | |
6M | 0.041 | 0.0015 | 0.0001 | 1.5 NS |
12M | 0.041 | 0.0015 | 0.0001 |
The values of PR segment of both the groups i.e. control and experimental group of subjects at the beginning of the experiment were found to be in similar range (0.0415 ± 0.00156 and 0.0415 ± 0.00153) without any significant difference and also no significant difference was observed at any follow-up interval (Table E 3; Fig. R 5).
Table E 4: Inter-group comparison of PR segment at different follow-up periods in control and experimental subjects.
Group | Duration | Mean (sec.) | SD | SE | 't' |
Experimental | 0D | 0.041 | 0.0015 | 0.0001 | 0NS |
Control | 0D | 0.041 | 0.0015 | 0.0001 | |
Experimental | 2M | 0.041 | 0.0011 | 0.0001 | 0.894 NS |
Control | 2M | 0.041 | 0.0015 | 0.0001 | |
Experimental | 6M | 0.041 | 0.0013 | 0.0001 | 0.284 NS |
Control | 6M | 0.041 | 0.0015 | 0.0001 | |
Experimental | 12M | 0.041 | 0.0011 | 0.0001 | 1.926 NS |
Control | 12M | 0.041 | 0.0011 | 0.0001 |
Fig. R 5: Comparison of PR segment at different follow-up periods in control and experimental subjects