Table 1.
Baseline characteristics, responses to graded exercise testing (GXT), and ultra-marathon records. Data are in median (interquartile ranges).
| Characteristics | All subjects (n=24) |
|---|---|
| Age (years) | 49.5 (47 - 54) |
| Height (m) | 168.3 (164.2 - 171.8) |
| Weight (kg) | 65.5 (64.2 - 71.4) |
| BMI (kg·m-2) | 23.7 (23.7 - 25.0) |
| Marathon experience (month) | 120.0 (78.8 - 141.8) |
| Number of participated marathons | 37.5 (20.0 - 60.8) |
| Average completion time (min) | 218 (202.75 - 230) |
| Record time (min) (n =20) | 198.0 (190.0 - 210.0) |
| Graded exercise testing (GXT) | |
| Exercise intensity (RPE) | 13 (11 - 13) |
| VO2max (ml·kg-1·min-1) | 47.0 (44.6 - 49.0) |
| At rest | |
| HR (bpm) | 60.0 (53.0 - 67.8) |
| SBP (mmHg) | 117 (108.0 - 128.0) |
| DBP (mmHg) | 77 (70.5 - 81.5) |
| At maximum | |
| HR (bpm) | 171.5 (164.5 - 181.5) |
| SBP (mmHg) | 215.0 (200.0 - 237.5) |
| DBP (mmHg) | 76.0 (68.0 - 82.8) |
| Total completion time (min) | 3614.5 (3393.0 - 3722.0) |
| Mean speed (km/hr) | 5.1 (5.0 - 5.5) |
| From 0 to 100 km | 7.6 (7.2 - 8.4) |
| From 100 to 200 km | 4.74 (4.6 - 5.1) * |
| From 200 to 308 km | 4.5 (4.3 - 4.6) *† |
Treadmill graded exercise testing (GXT) was conducted 4 weeks prior to the ultramarathon race on all volunteers. The symbols next to the values indicate following meanings.
* The difference is significant from 100 km, p < 0.001
† The difference is significant from 200 km, p < 0.001.