Evidence map›Paper›PMID 27310942›Full record

Trial reportMedicine2016

Motor effort training with low exercise intensity improves muscle strength and descending command in aging.

Changhao Jiang, Vinoth K Ranganathan, Junmei Zhang, Vlodek Siemionow, Guang H Yue

Erratum issuedAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  13. Reduced Neural Excitability and Activation Contribute to Clinically Meaningful Weakness in Older Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Changhao JiangDepartment of Biomedical Engineering, Cleveland Clinic, Cleveland, OH Department of Physical Medicine and Rehabilitation, Cleveland Clinic, Cleveland, OH Human Performance and Engineering Research, Kessler Foundation, West Orange, NJ Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Rutgers University, Newark, NJ Key Lab of Sports Ability Evaluation and Comprehensive Research Lab of General Administration of Sports, Capital Institute of Physical Education, Beijing, China Graduate School, Beijing Sports University, Beijing, China.
Vinoth K Ranganathan
Junmei Zhang
Vlodek Siemionow
Guang H Yue

Funding

MENTAL TRAINING EFFECTS ON VOLUNTARY MUSCLE STRENGTHR01NS035130 · NINDS · CLEVELAND CLINIC LERNER COM-CWRU · PI YUE, GUANG H · 1997 to 2012
$1.7M
NINDS NIH HHS R01 NS035130
6 · The paper itself

Abstract

This study explored the effect of high mental effort training (MET) and conventional strength training (CST) on increasing voluntary muscle strength and brain signal associated with producing maximal muscle force in healthy aging. Twenty-seven older adults (age: 75 ± 7.9 yr, 8 women) were assigned into 1 of 3 groups: MET group-trained with low-intensity (30% maximal voluntary contraction [MVC]) physical exercise combined with MET, CST group-trained with high-intensity muscle contractions, or control (CTRL) group-no training of any kind. MET and CST lasted for 12 weeks (5 sessions/week). The participants' elbow flexion strength of the right arm, electromyography (EMG), and motor activity-related cortical potential (MRCP) directly related to the strength production were measured before and after training. The CST group had the highest strength gain (17.6%, P <0.001), the MET group also had significant strength gain (13.8%, P <0.001), which was not statistically different from that of the CST group even though the exercise intensity for the MET group was only at 30% MVC level. The CTRL group did not have significant strength changes. Surprisingly, only the MET group demonstrated a significant augmentation in the MRCP (29.3%, P <0.001); the MRCP increase in CST group was at boarder-line significance level (12.11%, P = 0.061) and that for CTRL group was only 4.9% (P = 0.539). These results suggest that high mental effort training combined with low-intensity physical exercise is an effective method for voluntary muscle strengthening and this approach is especially beneficial for those who are physically weak and have difficulty undergoing conventional strength training.

Indexed as

AgedAgingElectromyographyExerciseFemaleHumansMotor SkillsMuscle ContractionMuscle StrengthResistance Training

Identifiers

PMID27310942
PMCPMC4998428

What OpenQuestion holds

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Registered trials

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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.