Table 1 Characteristics of participants

Gender

 Male

2 (14)

1 (13)

1 (17)

 Female

12 (86)

7 (87)

5 (83)

Age, years

49 ± 9

50 ± 9

49 ± 9

Height, centimeters

166 ± 11

166 ± 13

166 ± 9

Weight, kilograms

86 ± 28

84 ± 19

90 ± 40

Smoking

 Never

6 (43)

5 (62)

1 (16)

 Current

1 (7)

-

1 (16)

 Former

7 (50)

3 (37)

4 (66)

Self-reported physical activity

 Sedentary

1 (7%)

1 (12%)

-

 Mild

6 (43%)

2 (25%)

4 (67%)

 Moderate

3 (21%)

1 (12%)

2 (33%)

 High

4 (29%)

4 (51%)

-

COVID-19 test*

 Yes

12 (86)

7 (87)

5 (83)

 No

2 (14)

1 (13)

1 (17)

Active infection, days

25 ± 12.50

25.1 ± 9.61

24.4 ± 15

COVID-19 severity at baseline

 Home

13 (93)

7 (87.5)

6 (100)

 Hospital

1 (7)

1 (12.5)

-

 ICU

-

-

-

Use of respiratory equipment

 Yes

2 (14)

2 (25)

-

 No

12 (86)

6 (75)

6 (100)

Time since infection

 3 months

1 (8)

1 (12)

-

 3–6 months

5 (36)

2 (25)

3 (50)

 > 6 months

8 (57)

5 (62)

3 (50)

Comorbidities

 Migraine

2 (14)

1 (13)

1 (17)

 Hypertension

1 (7)

-

1 (17)

 Asthma

1 (7)

1 (13)

-

 Hashimoto syndrome

1 (7)

1 (13)

-

 Tachycardia

1 (13)

-

 Heart murmur

1 (13)