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Table 4 Values of RR, PNN50, LF, HF and LF/HF between training session (TS) and the matches. Values are expressed as Mean ± SD

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

Effect size

P value

RR

706.7 ± 49.2

698.9 ± 133.3

700.0 ± 80.5

719.8 ± 76.7

0.012

0.863

pNN50

2.4 ± 1.6

4.73 ± 3.7

3.7 ± 3.1

3.7 ± 2.9

0.09

0.417

LF

67.3 ± 14.2

63.8 ± 22.4

69.9 ± 14.2

60.2 ± 20.7

0.06

0.640

HF

33.9 ± 14.5

35.8 ± 22.1

29.9 ± 14.0

39.5 ± 20.5

0.05

0.661

  1. RR: Time between intervals R-R; pNN50: Percentage of intervals > 50 ms different from the previous interval; LF: Low frequency; HF: High Frequency
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BMC Sports Science, Medicine and Rehabilitation

ISSN: 2052-1847

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