METHODS: DP was examined in three studies (A-C), involving roller skiing on a treadmill. In study A (n=6), the subjects performed 10 min of DP at ~74% of their VO2max. Catheters were inserted in a. and v. femoralis, v. subclavia and right atrium to measure a-v O2 difference at systemic level as well as over the arms and legs. Blood flow in arms and legs was measured by constant-infusion thermod...

Abstract Cross-country (XC) ski races involve a variety of formats, two different techniques and tracks with highly variable topography environmental conditions. In addition, XC skiing is major component both Nordic combined biathlon competitions. Research in this area, the laboratory field, encounters certain difficulties that may reduce reliability validity data obtained, as well complicate c...