RESULTS

Table 4 summarizes the results of the analysis of the pre and post data using the two- tailed Student's paired t-test, in all three parameters. The t-values for the control group show significant improvement in BK but no change in SFB and deterioration in VSMS scores. On the contrary, the yoga group portray highly significant improvements in all the three parameters studied. The result for (Y-C) also clearly bring about the usefulness of yoga compared to the control group by highly significant values of t.

Table 5 depicts the X 2 evaluation of results in both control and yoga groups. In the control group, there is no significant change in all three parameters. In the yoga group, the BK scores has significantly improved. Eighty-nine per cent improved their BK scores in the yoga group compared to 57% in the control group. Sixty-eight per cent enhanced their SFB capacities, as opposed to only 41% in the control group. Sixty per cent and 56% improved their VSMS scores in the yoga and control groups, respectively.

Table 6 (a & b) depicts the changes due to yoga intervention in the mild, moderate and severe degrees of MR. A x2 evaluation based on two degrees of freedom (improved or non-improved cases including deterioration) is also seen in the last column. In the control group, there is no significant increase or decrease after the test period in all three categories. In the yoga group, there is significant improvement in the moderate degree group and no deterioration in other two categories.

The overall mean differences in units of IQ (BK scores) show improvement in all three categories of yoga group as compared to control group. In both groups, the moderate category shows a higher mean compared to the mild and severe, the yoga group mean being significantly higher than the control mean. There is no deterioration in any category in the yoga group whereas the mild degree in control group shows a negative score.