Table 3.

Training distribution (hours per week) in the 4 weeks prior to pre-test (Pre-intervention) and during the 6-week intervention period for MET (n = 11) and ET (n = 11).

Variable	MET		ET
	Pre-intervention	Intervention	Pre-intervention	Intervention
LIT (60–81% of HRpeak)	6.4 ± 3.1	5.6 ± 2.9	4.3 ± 2.2	4.1 ± 2.3
MIT (82–87% of HRpeak)	1.2 ± 0.6	1.2 ± 0.7	1.0 ± 0.5	1.0 ± 0.6
HIT (88–100% of HRpeak)	0.5 ± 0.2	0.6 ± 0.3	0.6 ± 0.3	0.7 ± 0.2*
Total endurance training	8.1 ± 3.6	7.5 ± 3.3	5.9 ± 2.1	5.8 ± 2.0
Muscular endurance training	–	0.3 ± 0.1	–	–
Strength training	0.5 ± 0.7	0.5 ± 0.5	0.3 ± 0.4	0.4 ± 0.5
Total training	8.6 ± 4.6	8.3 ± 4.2	6.2 ± 3.2	6.2 ± 3.1
Double poling	3.3 ± 2.7	2.4 ± 2.4	1.5 ± 1.1	1.2 ± 0.8

LIT, low-intensity training; MIT, moderate intensity training; HIT, high-intensity training; MET, combined muscular endurance and endurance training group; ET, endurance training group.

^*Significant in-group difference from pre-intervention to intervention (P < 0.05). Double poling is performed during rollerski.