Evidence map›Paper›PMID 26349745›Full record

ArticleEuropean journal of applied physiology2016

Gokyo Khumbu/Ama Dablam Trek 2012: effects of physical training and high-altitude exposure on oxidative metabolism, muscle composition, and metabolic cost of walking in women.

E Tam, P Bruseghini, E Calabria, L Dal Sacco, C Doria, B Grassi, T Pietrangelo, S Pogliaghi, C Reggiani, D Salvadego and 5 more

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In one paragraph

Article in European journal of applied physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
6.4field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 5 institutions in 2 countries.

E TamDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
P BruseghiniDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
E CalabriaDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
L Dal SaccoDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
C DoriaDepartment of Neurosciences, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy.
B GrassiDepartment of Medical and Biological Sciences, University of Udine, Udine, Italy.
T PietrangeloDepartment of Neurosciences, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy.
S PogliaghiDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
C ReggianiDepartment of Biomedical Sciences, University of Padua, Padua, Italy.
D SalvadegoDepartment of Medical and Biological Sciences, University of Udine, Udine, Italy.
F SchenaDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy.
L TonioloDepartment of Biomedical Sciences, University of Padua, Padua, Italy.
V VerrattiDepartment of Neurosciences, Imaging and Clinical Sciences, University of Chieti-Pescara, Chieti, Italy.
G VernilloCeRiSM, Rovereto, TN, Italy.
Carlo CapelliDepartment of Neurological and Movement Sciences, University of Verona, Verona, Italy. carlo.capelli@univr.it.ORCID http://orcid.org/0000-0002-3278-1337
University of Verona · ITUniversity of Chieti-Pescara · ITUniversity of Padua · ITUniversity of Udine · ITUniversity of Milan · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe investigated the effects of moderate-intensity training at low and high altitude on VO2 and QaO2 kinetics and on myosin heavy-chain expression (MyHC) in seven women (36.3 yy ± 7.1; 65.8 kg ± 11.7; 165 cm ± 8) who participated in two 12- to 14-day trekking expeditions at low (598 m) and high altitude (4132 m) separated by 4 months of recovery.

methodsBreath-by-breath VO2 and beat-by-beat QaO2 at the onset of moderate-intensity cycling exercise and energy cost of walking (Cw) were assessed before and after trekking. MyHC expression of vastus lateralis was evaluated before and after low-altitude and after high-altitude trekking; muscle fiber high-resolution respirography was performed at the beginning of the study and after high-altitude trekking.

resultsMean response time of VO2 kinetics was faster (P = 0.002 and P = 0.001) and oxygen deficit was smaller (P = 0.001 and P = 0.0004) after low- and high-altitude trekking, whereas ˙ QaO2 kinetics and Cw did not change. Percentages of slow and fast isoforms of MyHC and mitochondrial mass were not affected by low- and high-altitude training. After training altitude, muscle fiber ADP-stimulated mitochondrial respiration was decreased as compared with the control condition (P = 0.016), whereas leak respiration was increased (P = 0.031), leading to a significant increase in the respiratory control ratio (P = 0.016).

conclusionsAlthough training did not significantly modify muscle phenotype, it induced beneficial adaptations of the oxygen transport-utilization systems witnessed by faster VO2 kinetics at exercise onset.

Indexed as

AltitudeWalkingAdultFemaleHumansMiddle AgedMuscle, SkeletalMyosin Heavy ChainsOxygenOxygen ConsumptionPhysical EnduranceQuadriceps MuscleMyosin Heavy ChainsOxygenAerobic metabolismChronic hypoxiaEnergy cost of walkingExercise trainingWomen

Identifiers

PMID26349745
OpenAlexW1723709057

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.