Autonomic function and change in functional capacity in older adults: a longitudinal investigation.

We observed a marginally insignificant interactions of the baseline SDNN term with time 2 (Model 4 in Table 2 ).

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We also observed a marginally significant association of a higher SDNN at a time during follow-up with a longer chair rise time at that time (Models 2, 3, and 4 in Table 3 ).

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