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Table 2 Sample and SMFT characteristics of the studies included in the reliability meta-analysis

From: Submaximal Fitness Test in Team Sports: A Systematic Review and Meta-Analysis of Exercise Heart Rate Measurement Properties

Study

Year

Sample Characteristics

SMFT

Multiple Effects

RoB (L/U/H)

Reliability Properties

N

Mean Age

Sex

Sport

Level

Category

Protocol

Environment

Exe Dur. (min)

Exe Int. (HRex)

Analysis

MD

TE

ICC

Veugelers et al. [46]

2016

25

23.0

Male

ARF

Elite

II

Mod

Yo-YoIR2

Indoor AM

2–4

74.4–82.4

30 s

Vol./Int

5/1/0

✓

✓(A)

✓ (3,1)

Test–retest

Scott et al. [3]

2018

25

23.2

Male

Rugby

Elite

CF

Ind. Shuttle

Outdoor AM

4

81.1

30 s

 

6/0/0

✓

✓(A)

✓ (3,1)

20–24 Â°C

Buchheit et al. [34]

2010

18

13.9

Male

Soccer

Elite

CF

Track

Outdoor

5

81.8

30 s

Sub-groups

3/1/2

✓

  

15

15.7

21.6–23 Â°C

76.0

Bradley et al. [35]

2011

32

 

Male

Soccer

Elite

II

Yo-YoIR2

Indoor

6

NS

Fixed

 

1/2/3

  

✓ (NS)

Buchheit et al. [37]

2011

12

17.0

Male

Ice Hockey

Elite

II

30-15IFT

Indoor

 ~ 3 & 6

74.6 & 88.6

20 s

Vol./Int

4/1/1

✓

✓(A)

✓ (3,1)

Fanchini et al. [7]

2014

24

17.0

Male

Soccer

Sub-elite

II

Yo-YoIR1

NS

 ~ 6

91.3

Fixed

 

3/1/2

✓

✓(A)

✓ (2,1)

Hulin et al. [6]a

2019

17

24.1

Male

Rugby

Elite

II

Yo-YoIR1

Outdoor

 ~ 4

89.0 & 91.5

10 s

Test–retest

3/2/1

✓

✓(A)

✓ (3,1)

19.0 ± 2.6 Â°C

55 ± 13% RH

Hulka et al. [83]

2015

25

17.7

Male

Soccer

NS

IV

4v4 SSG

Indoor

12

79.7–81.8

All

 

3/3/0

✓

✓(A)

✓ (NS)

Hulse et al. [26]

2013

13

U9-11

Male

Soccer

NS

II

MSFT

Indoor PM

 ~ 5.5

95.7

 ~ 60 s

Sub-groups

4/1/1

✓

✓(B)

✓ (2,1)

15

U12-14

10.5–12.4 Â°C

88.7

18

U15-18

84.3

Ingebrigtsen et al. [28]

2014

10–37

22.0

Male

Soccer

Mixed

II

Yo-YoIR 1/2

Indoor

2, 4 & 6

NS

Fixed

Vol./Int

1/4/1

  

✓ (3,1)

Rabbani et al. [53]

2018

12

25.1

Male

Soccer

Elite

CF

100 m shuttle

AM

4

76.7

30 s

Test–retest

5/1/0

✓

✓(A)

✓ (3,1)

24–26 Â°C

Owen et al. [29]

2017

10

17.8

Male

Soccer

Elite

II

Yo-YoIR1

Same time during the day

6

82.1

Fixed

 

2/4/0

✓

✓(B)

✓ (2,1)

Buchheit et al. [23]

2008

15

15.6

Male

Handball

Sub-elite

CF

Ind. Track

Indoor

6

80.5

All

 

3/2/1

 

✓(B)

✓ (NS)

18–22 Â°C

Deprez et al. [25]

2014

9–27

12.5

Male

Soccer

Mixed

II

Yo-YoIR1

Indoor

 ~ 2.5, 3.5 & 6.5

91.8–97.0

Fixed

Vol./Int

4/2/0

✓

✓(B)

✓ (3,1)

8–26

14.0

Similar °C

91.5–96.7

Sub-groups

4–19

16.2

91.0–94.6

Owen et al. [82]

2020

23

25.3

Male

Soccer

Elite

IV

5V5 SSG

Outdoor AM

9

87.0

All

 

2/2/2

 

✓(A)

✓ (3,1)

Doncaster et al. [54]

2018

8

12.9

Male

Soccer

Elite

II

Yo-YoIR1

Outdoor

3 & 6

88.3–93.8

15 s

Vol./Int

5/1/0

✓

✓(A)

✓ (3,1)

11–13.2 Â°C

63–72%RH

Deprez et al. [24]

2015

22

13.9

Male

Soccer

Elite

II

Yo-YoIR1

Outdoor PM

 ~ 6.5

95.1–95.4

Fixed

Sub-groups

5/1/0

✓

✓(A)

✓ (NS)

10

16.2

 ~ 10 Â°C

91.8–92.8

Test–retest

4

18.1

88.1–90.0

Dell Iacono et al. [27]b

2019

10

18.5

Male

Soccer

Elite

IV

Pass. Drill

Outdoor PM

12

85.1–87.2

All

Sub-groups

5/1/0

✓

✓(A)

✓ (3,1)

10

18.7

Male

Soccer

Elite

IV

5V5 SSG

22 ± 2.5 Â°C

12

86.2–87.1

65 ± 3.8%RH

Younesi et al. [33]

2021a

16

27.2

Male

Soccer

Elite

IV

3V3-6V6 SSG

Outdoor PM

6

80.8–81.8

All

Protocol

5/1/0

✓

✓(A)

✓ (3,1)

25–32 Â°C

Test–retest

54–76%8RH

Ryan et al. [31]

2019

16

24.6

Male

ARF

Elite

CF

80 m shuttle

Outdoor

5

 

30 s

 

4/2/0

✓

✓(A)

✓ (3,1)

20–25.5 Â°C

Scott et al. [36]c

2022

17

22.0

Male

Rugby

Elite

CF

Ind. Shuttle

21–23 Â°C

4

84.9

30 s

 

5/1/0

✓

✓(A)

✓ (3,1)

  1. 30-15IFT 30-15 intermittent fitness test, AM morning hours, ARF Australian football, All overall exercise, Fixed fixed time point(s), °C temperature in Celsius, CF continuous fixed, Exe. Exercise, H high, ICC intraclass correlation, II Intermittent incremental, Ind. Individualised, Int intensity, IV intermittent variable, L low, m metres, MD mean difference, MSFT multistage fitness test, N sample size, NS not specified, PM afternoon hours, Pass passing, RH relative humidity, RoB Risk of Bias, SSG small-sided games, TE typical error of measurement, U unclear, s second, SMFT submaximal fitness test, Vol volume, Yo-YoIR1 Yo-Yo intermittent recovery test level 1, Yo-YoIR2 Yo-Yo intermittent recovery test level 2, mod. Yo-YoIR2 modified (18 m shuttle) Yo-Yo intermittent recovery test level 2. TE(A): TE derived from the mean variance of individuals score change (Eq. 2), TE(B): TE derived from the variance between individuals and ICC (Eq. 3). ICC (2,1) and ICC (3,1) refer to ICC type
  2. aTest–retest reliability results were established using the raw data provided by the authors
  3. bTest–retest reliability results of the first two weeks which met the inclusion criteria of total duration were established using the raw data provided by the authors
  4. cTest–retest reliability results were established using the raw data provided by the authors