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Muscle oxygenation trends after tapering in trained cyclists

Overview of attention for article published in Dynamic Medicine, March 2005
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Title
Muscle oxygenation trends after tapering in trained cyclists
Published in
Dynamic Medicine, March 2005
DOI 10.1186/1476-5918-4-4
Pubmed ID
Authors

J Patrick Neary, Donald C McKenzie, Yagesh N Bhambhani

Abstract

BACKGROUND: This study examined muscle deoxygenation trends before and after a 7-day taper using non-invasive near infrared spectroscopy (NIRS). METHODS: Eleven cyclists performed an incremental cycle ergometer test to determine maximal oxygen consumption (VO2max = 4.68 +/- 0.57 L.min-1) prior to the study, and then completed two or three high intensity (85-90% VO2max) taper protocols after being randomly assigned to a taper group: T30 (n = 5), T50 (n = 5), or T80 (n = 5) [30%, 50%, 80% reduction in training volume, respectively]. Physiological measurements were recorded during a simulated 20 km time trials (20TT) performed on a set of wind-loaded rollers. RESULTS AND DISCUSSION: The results showed that the physiological variables of oxygen consumption (VO2), carbon dioxide (VCO2) and heart rate (HR) were not significantly different after tapering, except for a decreased ventilatory equivalent for oxygen (VE/VO2) in T50 (p </= 0.05). However, during the 20TT muscle deoxygenation measured continuously in the vastus medialis was significantly lower (-749 +/- 324 vs. -1140 +/- 465 mV) in T50 after tapering, which was concomitant with a 4.53% improvement (p = 0.057) in 20TT performance time, and a 0.18 L.min-1 (4.5%) increase in VO2. Furthermore, when changes in performance time and tissue deoxygenation (post- minus pre-taper) were plotted (n = 11), a moderately high correlation was found (r = 0.82). CONCLUSION: It was concluded that changes in simulated 20TT performance appeared to be related, in part, to changes in muscle deoxygenation following tapering, and that NIRS can be used effectively to monitor muscle deoxygenation during a taper period.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 85 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 1%
Turkey 1 1%
Netherlands 1 1%
Italy 1 1%
Unknown 81 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 16 19%
Student > Master 15 18%
Student > Ph. D. Student 13 15%
Other 7 8%
Student > Bachelor 6 7%
Other 19 22%
Unknown 9 11%
Readers by discipline Count As %
Sports and Recreations 38 45%
Medicine and Dentistry 8 9%
Agricultural and Biological Sciences 5 6%
Engineering 5 6%
Environmental Science 4 5%
Other 15 18%
Unknown 10 12%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 10 October 2014.
All research outputs
#22,759,452
of 25,374,647 outputs
Outputs from Dynamic Medicine
#23
of 23 outputs
Outputs of similar age
#72,175
of 74,046 outputs
Outputs of similar age from Dynamic Medicine
#2
of 2 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 23 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 15.1. This one scored the same or higher as 0 of them.
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 74,046 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 2 others from the same source and published within six weeks on either side of this one.