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Table 3 Heart rate variability values (LnRMSSD, LnSDNN and LF/HF) and salivary cortisol between training session (TS) and matches. Values are expressed as medians (25th—75th percentiles)

From: Analysis of stress tolerance, competitive-anxiety, heart rate variability and salivary cortisol during successive matches in male futsal players

 

TS

Match 1

Match 2

Match 3

p

LnRMSSD

3.03 (2.93; 3.14)

3.15 (2.98; 3.34)

3.14 (2.71; 3.33)

3.08 (2.81; 3.34)

0.33

LnSDNN

3.81 (3.37;3.81)

3.36 (3.19;3.36)

3.29 (3.13;3.29)

3.53 (3.30;3.53)

0.29

LF/HF

2.70 (1.47; 5.27)

1.85 (1.10; 4.50)

2.60 (1.35; 4.40)

1.55 (0.70; 6.07)

0.66

Salivary cortisol (ng/mL)

2.32 (1.65; 2.96)

3.50 (1.84; 8.85)

3.16 (2.03; 3.86)

3.18 (2.05: 3.71)

0.29

  1. LnRMSSD: Natural Logarithm the square root of the mean of the squares of the successive differences of the interval; LnSDNN: Natural Logarithm standard deviation of all normal RR intervals recorded in a time interval; LF/HF: Low frequency (LF) ratio (ms2) / High frequency (HF)