Table 1 Participant demographics

Sex

9F, 5 M

7F, 7 M

8F, 6 M

7F, 7 M

Age(yrs)

26.5 (6.68)

53.82 (5.73)^*

50.00 (3.88)^*

51.67 (6.71)^*

Mass (kg)

62.21 (9.94)

68.06 (12.80)

67.19 (9.48)

72.35 (13.22)

Height (m)

1.72 (0.13)

1.70 (0.16)

1.70 (0.09)

1.71 (0.11)

BMI (kg/m2)

20.99 (2.53)

23.22 (1.63)

23.19 (1.90)

24.55 (3.15)

Body Fat (%)

17.18 (8.93)

23.28 (5.72)

20.44 (4.86)

23.69 (10.22)

Miles/week

30.33 (13.19)

31.67 (12.49)

7.18 (5.23)†

12.25 (5.19) †

Self-reported pace (min mile-1)

8.02 (1.18)†

9.52 (1.62)^*

9.48 (1.41)

10.33 (1.35)^*

Days/week

5.00 (1.21)

4.75 (1.06)

3.92 (1.08)

4.67 (1.50)

Runs/week

5.00 (1.21)

4.75 (1.06)

2.00 (0.74)†

2.42 (0.67)†

Running experience (yrs)

7.58 (4.17)

19.33 (12.99)

19.40 (12.49)

20.45 (13.29)