Table 2 Physiological response to double poling at sub-maximal speed (16 km·h−1) in the study groups.

From: Skiing economy and kinematic during a field double poling roller skiing among novice and experienced cross-country skiers

 

Skiers

t-value

p-value

Experienced (n = 5)

Novice (n = 5)

VO2 (mL·min−1·kg−1)

34.9 ± 1.3*

45.0 ± 5.8

− 3.817

< 0.05

RER

0.87 ± 0.03

0.89 ± 0.03

− 0.858

0.416

HR (beats·min−1)

139 ± 8**

165 ± 3

− 6.920

< 0.001

[La-] (mmol·L−1)

2.0 ± 0.2*

2.8 ± 0.4

− 3.697

0.011

  1. All the outcomes are denoted as average values (standard deviation [SD]).
  2. VO2 oxygen uptake, RER respiratory exchange ratio, HR heart rate, [La-] blood lactate concentration.
  3. *p < 0.05, **p < 0.001. A p-value < 0.05 indicates statistical significance, while a p-value < 0.01 represents strong statistical significance.
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