Table 2 Correlation between HRV (RMSSD and HF) and birth weight.

From: Birth weight and heart rate autonomic recovery following exercise in healthy term-born adults

Variables

rho

p*

RMSSD

Rest

− 0.072

0.714

Recovery 0–1 min

0.188

0.337

Recovery 1–2 min

0.269

0.165

Recovery 1–3 min

0.132

0.503

Recovery 5–10 min

0.107

0.584

Recovery 15–20 min

0.017

0.929

Recovery 25–30 min

0.173

0.377

Recovery 35–40 min

− 0.053

0.786

Recovery 45–50 min

− 0.157

0.424

Recovery 55–60 min

− 0.014

0.940

HF (ms2)

Rest

− 0.121

0.536

Recovery 5–10 min

− 0.018

0.926

Recovery 15–20 min

− 0.017

0.929

Recovery 25–30 min

0.099

0.615

Recovery 35–40 min

0.078

0.690

Recovery 45–50 min

0.070

0.722

Recovery 55–60 min

0.088

0.654

  1. RMSSD root-mean square of differences between adjacent normal RR intervals, HF high frequency.
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