Table 4 Evolution of weight and gray matter (GM) brain volume during the TransEurope-FootRace 2009 (TEFR09)
Parameter | Weight in kg, 7s group | GM volume in ml, 7s group | Weight in kg, 10s group | GM volume in ml, 10s group |
|---|---|---|---|---|
Timepoint 1, start | 75.1 (6.8) | 670.0 (38.1) | 73.6 (6.6) | 671.7 (46.1) |
Timepoint 2, 2,400 km | 71.2 (6.3)* | 642.9 (38.8)** | 70.0 (5.8)*** | 645.5 (38.6)**** |
Timepoint 3, 4,005 km | 70.5 (6.4)* | 630.5 (42.6)** | 69.2 (5.9)*** | 630.7 (49.4)**** |
Timepoint 4, follow-up | 76.5 (6.2)* | 671.1 (19.5)** | NA | NA |
Difference, timepoint 1-2 | 3.9 (P = 0.0002) | 27.1 (P = 0.006) | 3.6 (P = 0.0002) | 26.2 (P = 0.0013) |
Difference, timepoint 1-3 | 4.6 (P = 0.0002) | 39.5 (P = 0.008) | 4.4 (P = 0.0002) | 40.6 (P = 0.0002) |
Difference, timepoint 2-3 | 0.7 (0.419) | 12.4 (P = 0.172) | 0.8 (P = 0.159) | 14.4 (P = 0.042) |
Difference, timepoint 4-3 | 6.0 (P = 0.0002) | 40.6 (P = 0.001) | NA | NA |
Difference, timepoint 4-1 | 1.4 (P = 0.092) | 1.1 (P = 0.898) | NA | NA |