Table 3.
Significant Age Main Effects on Cardiovascular Reactivity
Measure | Middle-aged Mean (SE) | Older Mean (SE) | F | eta-squared |
---|---|---|---|---|
Task Period Reactivity | ||||
SBP (mm Hg) | 6.1 (.42) | 7.7 (.43) | 6.60* | .023 |
CO (l/min) | .045 (.053) | .202 (.052) | 4.51* | .023 |
TPR | 71.2 (17.9) | 15.0 (18.4) | 4.82* | .026 |
HR (bpm) | 3.6 (.18) | 2.6 (.18) | 13.80** | .046 |
Recovery Period | ||||
SBP (mm Hg) | 3.7 (.40) | 5.7 (.40) | 12.47** | .042 |
CO (l/min) | −.24 (.055) | −.04 (.056) | 6.33* | .032 |
HR (bpm) | 2.1 (.18) | 1.2 (.17) | 13.78** | .046 |
RSA | −.345 (.05) | −.189 (.05) | 4.85* | .024 |
SBP = systolic blood pressure; CO = cardiac output; TPR = total peripheral resistance; HR = heart rate; RSA = respiratory sinus arrhythmia
p<.05,
p<.001, degrees of freedom range from 1 and 284 to 1 and 181