Table 4.
Mean glucose levels, carbohydrate intake, and adjustment of basal insulin in individuals with type 1 diabetes during a 90 km cross-country skiing race (Vasaloppet) and the duration of the physical activity (A–J).
| Glucose control and finishing time during a 90 km intensive cross-country skiing race | ||||||||
|---|---|---|---|---|---|---|---|---|
| Participants | Treat-ment (MDI/CSII) | Glucose value at start mg/dl (mmol/l) | Glucose control during Vasaloppet | CHO intake/h of activity (g) | Basal insulin percentage change (%) | Time from start to finish (hour:minutes) | ||
| Mean | SD | Range | ||||||
| A | MDI | 94 (5.2) | 86 (4.8) | 8 (0.5) | 74–99 (4.1–5.5) |
90 | 0 | 05:33 |
| B | MDI | 140 (7.8) |
138 (7.7) |
9 (0.5) |
119–158 (6.6–8.8) |
75 | 0 | 05:21 |
| C | CSII | 104 (5.8) |
129 (7.2) |
33 (1.8) |
86–194 (4.8–10.8) |
75 | 0 | 07:00 |
| D | MDI | 157 (8.7) |
110 (6.1) |
22 (1.2) |
77–196 (4.3–10.9) |
75 | 0 | 08:23 |
| E | CSII | 153 (8.5) |
138 (7.6) |
18 (1.0) |
99–162 (5.5–9.0) |
84 | 0 | 05:54 |
| F | CSII | 119 (6.6) |
150 (8.3) |
26 (1.5) |
104–184 (5.8–10.2) |
84 | 0 | 06:45 |
| G | CSII | 81 (4.5) |
141 (7.8) |
31 (1.7) |
81–187 (4.5–10.4) |
100 | 0 | 06:24 |
| H | CSII | 142 (7.9) |
132 (7.3) |
39 (2.2) |
68–203 (3.8–11.3) |
75 | 0 | 07:20 |
| I | CSII | 128 (7.1) |
128 (7.1) |
21 (1.2) |
85–158 (4.7–8.8) |
75 | +27 | 06:02 |
| J | CSII | 139 (7.7) |
126 (7.0) |
38 (2.1) |
83–220 (4.6–12.2) |
75 | Start: 0 #01:00: −14 #05:30: −31 |
06:07 |
| All | 126 (7.0) |
128 (7.1) |
25 (1.4) |
68-220 (3.8–12.2) |
80.8 | 06:28 | ||
#
The participant J had to deviate from the planned CHO intake during the race due to gastrointestinal discomfort which resulted in a reduction of the basal insulin dose 01:00 respectively 5:30 h after start.