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Effects of short term elastic resistance training on muscle mass and strength in untrained older adults: a randomized clinical trial

Overview of attention for article published in BMC Geriatrics, August 2015
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Title
Effects of short term elastic resistance training on muscle mass and strength in untrained older adults: a randomized clinical trial
Published in
BMC Geriatrics, August 2015
DOI 10.1186/s12877-015-0101-5
Pubmed ID
Authors

Wagner Rodrigues Martins, Marisete Peralta Safons, Martim Bottaro, Juscelino Castro Blasczyk, Leonardo Rios Diniz, Romulo Maia Carlos Fonseca, Ana Clara Bonini-Rocha, Ricardo Jacó de Oliveira

Abstract

The current recommendations on resistance training involving older adults have reported an improvement of body composition variables. Despite this, there is a lack of knowledge on how elastic resistance training (ERT) affects the muscle mass in older adults population. The purpose of this study was to determine the effects of a short-term ERT on muscle mass of health and untrained older adults. Forty older adults were randomized into two groups of 20 individuals each: Control Group (CG = 66.2 ± 6.6 years) and Training Group (TG = 69.1 ± 6.3 years). TG underwent an ERT twice a week during 8 weeks and control group did not receive any specific intervention. The primary outcome was the upper and lower limbs muscle mass, measured by Dual-energy x-ray absorptiometry. The secondary outcomes were knee isokinetic peak torque (PT) at 60°/s and 120°/s speeds and isometric handgrip strength. A 2×2 mixed model (group [TG and CG] × time [pre and post]) analysis of variance (ANOVA) was applied to determine the effect on primary and secondary outcomes. The results of the ANOVA showed no significant effects in group x time interaction for (1) upper limbs fat free mass (F [1.38] = 1.80, p = 0.19, effect size [ES] = 0.1) and for (2) lower limbs fat free mass (F [1.38] = 0.03, p = 0.88, ES = 0.02). Regarding muscle strength, the ANOVA showed no significant effects in group x time interaction for (3) PT at 60°/s (F [1.38] = 0.33, p = 0.56, ES = 3.0), for (4) PT at 120°/s (F [1.38] = 0.80, p = 0.38, ES = 4.1) and for handgrip strength (F [1.38] = 0.65, p = 0.42-value, ES = 0.9). Analysis of PT in TG showed a significant change of 4.5 %, but only at 120°/s (p = 0.01) when comparing pre and post-training (time interaction). Eight weeks of ERT did not show significant changes in muscle mass and strength of untrained older adults. NCT02253615 (09/25/14).

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The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 248 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 <1%
Unknown 247 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 49 20%
Student > Master 29 12%
Student > Ph. D. Student 24 10%
Student > Doctoral Student 12 5%
Student > Postgraduate 11 4%
Other 47 19%
Unknown 76 31%
Readers by discipline Count As %
Sports and Recreations 57 23%
Nursing and Health Professions 44 18%
Medicine and Dentistry 22 9%
Agricultural and Biological Sciences 9 4%
Biochemistry, Genetics and Molecular Biology 8 3%
Other 19 8%
Unknown 89 36%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 August 2015.
All research outputs
#14,234,315
of 22,821,814 outputs
Outputs from BMC Geriatrics
#2,135
of 3,187 outputs
Outputs of similar age
#136,456
of 264,494 outputs
Outputs of similar age from BMC Geriatrics
#24
of 32 outputs
Altmetric has tracked 22,821,814 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,187 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.5. This one is in the 30th percentile – i.e., 30% of its peers scored the same or lower than it.
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 264,494 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 45th percentile – i.e., 45% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 32 others from the same source and published within six weeks on either side of this one. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.