Table 1.

Training protocol

Week	First training day	Second training day	Third training day
1	30 s × 2	30 s × 3	30 s × 4
2	1 min × 1	1 min ×2	1 min × 3
3–5	1 min × 4	1 min × 4	1 min × 4
6–7	1 min × 5	1 min × 5	1 min × 5
8 to the end of study	1 min × 6	1 min × 6	1 min × 6

Min minutes, s seconds