I am investigating effect of yoga therapy on cardiovascular response to stress. There are two groups- Control (with no yoga intervention) and Yoga Group. They are tested in two conditions "Resting" and after "Stress" (IHG Test) over a period of 4 weeks. Variables are SBP, DBP, MAP, HR, RPP.

I have run the doubly multivariate analysis separately for "Resting" and "Stress" conditions, that is, Control Vs. Yoga group for resting condition and then again for Stress condition.

Data presentation is as follows,

Group SBP0 SBP1 SBP2 SBP3 SBP4 DBP0 DBP1 DBP2 ........

control

control

control

yoga

yoga

yoga

Is this a proper data presentation to run doubly multivariate in GLM Repeated measure analysis in SPSS?

Questions to be investigated are-

1. Whether there is an beneficial effect of intervention (yoga therapy) on CVS parameters leading to group difference- Between subjects effect in Resting And Stress conditions

2. Whether there is "Within Subject effect" of time factor?

3. Should I also test the interaction effect, Time*Group? What does it indicate if it is statistically significant?

Is my approach to run the analysis separately for Resting condition and Stress condition correct?

Can anyone help me to explain what are the relevant tables to be included in reporting results as regards above three questions?

Are there any illustrations available which are similar to my study?

Please guide.....