| Title |
Metabolic rate and gross efficiency at high work rates in world class and national level sprint skiers
|
|---|---|
| Published in |
European Journal of Applied Physiology, February 2010
|
| DOI | 10.1007/s00421-010-1372-3 |
| Pubmed ID | |
| Authors |
Øyvind Sandbakk, Hans-Christer Holmberg, Stig Leirdal, Gertjan Ettema |
| Abstract |
The present study investigated metabolic rate (MR) and gross efficiency (GE) at moderate and high work rates, and the relationships to gross kinematics and physical characteristics in elite cross-country skiers. Eight world class (WC) and eight national level (NL) male sprint cross-country skiers performed three 5-min stages using the skating G3 technique, whilst roller skiing on a treadmill. GE was calculated by dividing work rate by MR. Work rate was calculated as the sum of power against gravity and frictional rolling forces. MR was calculated using gas exchange and blood lactate values. Gross kinematics, i.e. cycle length (CL) and cycle rate (CR) were measured by video analysis. Furthermore, the skiers were tested for time to exhaustion (TTE), peak oxygen uptake (VO(2peak)), and maximal speed (V(max)) on the treadmill, and maximal strength in the laboratory. Individual performance level in sprint skating was determined by FIS points. WC skiers did not differ in aerobic MR, but showed lower anaerobic MR and higher GE than NL skiers at a given speed (all P < 0.05). Moreover, WC skiers skated with longer CL and had higher V(max) and TTE (all P < 0.05). In conclusion, the present study shows that WC skiers are more efficient than NL skiers, and it is proposed that this might be due to a better technique and to technique-specific power. |
Mendeley readers
The data shown below were compiled from readership statistics for 92 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 1% |
| United States | 1 | 1% |
| Denmark | 1 | 1% |
| Norway | 1 | 1% |
| Unknown | 88 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 15 | 16% |
| Student > Ph. D. Student | 10 | 11% |
| Student > Bachelor | 10 | 11% |
| Lecturer | 8 | 9% |
| Researcher | 7 | 8% |
| Other | 21 | 23% |
| Unknown | 21 | 23% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 44 | 48% |
| Medicine and Dentistry | 8 | 9% |
| Agricultural and Biological Sciences | 4 | 4% |
| Engineering | 4 | 4% |
| Psychology | 2 | 2% |
| Other | 9 | 10% |
| Unknown | 21 | 23% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 February 2010.
All research outputs
#6,330,323
of 25,374,647 outputs
Outputs from European Journal of Applied Physiology
#1,612
of 4,345 outputs
Outputs of similar age
#39,114
of 174,883 outputs
Outputs of similar age from European Journal of Applied Physiology
#8
of 37 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. Compared to these this one has done well and is in the 75th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,345 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.6. This one has gotten more attention than average, scoring higher than 62% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 174,883 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 77% of its contemporaries.
We're also able to compare this research output to 37 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 78% of its contemporaries.