Evidence map›Paper›PMID 22582211›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2012

Noninvasive evaluation of skeletal muscle mitochondrial capacity with near-infrared spectroscopy: correcting for blood volume changes.

Terence E Ryan, Melissa L Erickson, Jared T Brizendine, Hui-Ju Young, Kevin K McCully

2 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 112 papers.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed
27.0field-weighted citation impact, top 1% 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.

NCT06083194 unknown statusnot on this mapstarted 2024, after this paper: background citation

Non-invasive Evaluation of Muscle Oxidative Capacity. Study of Its Relationship With Muscular Endurance and Fatigue in Patients With Multiple Sclerosis

TypeobservationalSponsorUniversity Hospital, Clermont-FerrandRan2024 to 2025Enrolled30ConditionsMultiple Sclerosis
NCT07654946 narecruitingnot on this mapstarted 2026, after this paper: background citation

Near-Infrared Spectroscopy-Derived Mitochondrial Oxidative Phosphorylation Capacity, Local Muscular Fatigue Resistance, and the Effects of Acute Taurine Supplementation

TypeinterventionalSponsorLouisiana State University and A&M CollegeRan2026 to 2027Enrolled34ConditionsLocal Muscular Endurance and Fatigue, NIRS Skeletal Muscle Mitochondrial Capacity, Acute Taurine SupplementationArmsAcute Taurine Supplementation, Acute Placebo Supplementation
3 · Its place in the literature

Who cites it

112 citing papers in PubMed, 225 citations in OpenAlex.

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  12. Bed rest decreases resting skeletal muscle OExperimental physiology · 2026
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52 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Terence E RyanDepartment of Kinesiology, University of Georgia, Athens, GA 30602, USA. tryan7@me.com
Melissa L Erickson
Jared T Brizendine
Hui-Ju Young
Kevin K McCully
University of Georgia · US

Funding

Skeletal muscle plasticity, fitness and health after SCIR01HD039676 · NICHD · UNIVERSITY OF GEORGIA (UGA) · PI MCCULLY, KEVIN K. · 2001 to 2013
$3.5M
NICHD NIH HHS HD-039676
6 · The paper itself

Abstract

Near-infrared spectroscopy (NIRS) is a well-known method used to measure muscle oxygenation and hemodynamics in vivo. The application of arterial occlusions allows for the assessment of muscle oxygen consumption (mVo(2)) using NIRS. The aim of this study was to measure skeletal muscle mitochondrial capacity using blood volume-corrected NIRS signals that represent oxygenated hemoglobin/myoglobin (O(2)Hb) and deoxygenated hemoglobin/myoglobin (HHb). We also assessed the reliability and reproducibility of NIRS measurements of resting oxygen consumption and mitochondrial capacity. Twenty-four subjects, including four with chronic spinal cord injury, were tested using either the vastus lateralis or gastrocnemius muscles. Ten healthy, able-bodied subjects were tested on two occasions within a period of 7 days to assess the reliability and reproducibility. NIRS signals were corrected for blood volume changes using three different methods. Resting oxygen consumption had a mean coefficient of variation (CV) of 2.4% (range 1-32%). The recovery of oxygen consumption (mVo(2)) after electrical stimulation at 4 Hz was fit to an exponential curve, which represents mitochondrial capacity. The time constant for the recovery of mVo(2) was reproducible with a mean CV of 10% (range 1-22%) only when correcting for blood volume changes. We also examined the effects of adipose tissue thickness on measurements of mVo(2). We found the mVo(2) measurements using absolute units to be influenced by adipose tissue thickness (ATT), and this relationship was removed when an ischemic calibration was performed, supporting its use to compare mVo(2) between individuals of varying ATT. In conclusion, in vivo oxidative capacity can be assessed using blood volume-corrected NIRS signals with a high degree of reliability and reproducibility.

Indexed as

Mitochondria, MuscleOxygen ConsumptionBlood VolumeBlood Volume DeterminationFemaleHumansMaleMuscle, SkeletalOximetryOxygenReproducibility of ResultsSensitivity and SpecificitySpectroscopy, Near-InfraredSpinal CordYoung AdultOxygen

Identifiers

PMID22582211
PMCPMC3404707
OpenAlexW2112603781

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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 OpenQuestion graph.