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Table 3 HRV responses in subsequent recovery period after a singular stressor

From: Monitoring stress and allostatic load in first responders and tactical operators using heart rate variability: a systematic review

Study

Timepoint of comparison

 

Participant groups

HRV measure

 

Time Domain

Frequency Domain

Non-Linear

N=

RRi

RMSSD

SDNN

PNN50

TP

LF

HF

LF n.u.

HF n.u.

LF/HF

SD1

SD2

Strahler & Ziegert [62]

20 mins post to baseline

50

 

↔*

↔

          

20 mins post to stress

 

↑*

↑

          

20 mins post to immediately post

 

↑*

↑

          

Clemente-Suárez et al. [54]

30 mins post to baseline

38

  

↓

     

↑

↓

   

30 mins post to stress

  

↔

     

↔

↔

   

Ghazali et al. [73]

45 mins post to immediately post

48

 

↔

  

↔

     

↔

  

75 mins post to 45 mins post

 

↑

  

↑

     

↔

  

Dussault et al. [30]

2 & 4 h post to baseline

7

Short flight supine

    

↔↔

  

↔↔

↔↔

   

Short flight standing

    

↔↔

    

↔↑

  

26

Long flight supine

 

↔↔

↔↔

↔↔

↔↔

  

↔↔

↔↔

↔↔

  

Long flight standing

↓↓*

↔↔

↔↔

↔↔

↔↔

  

↔↔

↔↔

↔↑

↔↔

↔↔

2 & 4 h post to immediately post

7

Short flight supine

    

↔↔

  

↔↔

↔↔

   

Short flight standing

    

↔↔

    

↓↔

  

26

Long flight supine

↔↔

↔↔

↔↔

↔↔

↔↔

  

↔↔

↔↔

↔↔

  

Long flight standing

↔↔*

↓↓

↓↓

↔↔

↓↓

  

↑↑

↓↓

↑↑

↓↓

↓↓

Aasa et al. [78]

work free day 1 & 2 to preceding work day

26

Few health complaints

     

↔↔

↔↔

     

Many health complaints

     

↓↓

↑↑

     

Lyytikainen et al. [79]

Work free day 1, 2 & 3 to preceding work day

14

24-h recording

 

↑↔↑

↔↔↑

      

↔↓↓

  

Night time recording

 

↔↑↔

↔↔↔

      

↔↓↔

  
  1. Participants included (n=), RRi R-R interval, RMSSD root mean square of successive differences, SDNN standard deviation of R-R intervals, PNN50 percentage of R-R intervals greater than 50 ms, TP total power, VLF very low frequency power, LF low frequency power, HF high frequency power, LF n.u. low frequency normative units, HF n.u. high frequency normative units, LF/HF low frequency to high frequency ratio, SD1 standard deviation of the distance of data from the line of identity on a poincairé plot, SD2 standard deviation of the distance of data perpendicular to the line of identity at the average RRi length on a poincairé plot, derived from heart rate (*)