| Title |
The role of thigh muscular efforts in limiting sit-to-stand capacity in healthy young and older adults
|
|---|---|
| Published in |
Aging Clinical and Experimental Research, February 2017
|
| DOI | 10.1007/s40520-016-0702-7 |
| Pubmed ID | |
| Authors |
Megan Bryanton, Martin Bilodeau |
| Abstract |
Aging is associated with an unavoidable decline in muscle mass, known as sarcopenia, leading to neuromuscular declines, muscle weakness, and subsequent disability. One particular measure utilized by rehabilitative professionals in evaluating functional declines in older persons is sit-to-stand (STS) capacity. The purpose of this investigation was to determine the role of activation intensity requirements of the thigh musculature in limiting a multi-joint STS endurance task. To do so, surface EMG signals of the quadriceps femoris (QF) and hamstrings (biceps femoris; BF) and their co-activation ratios (H:Q) were collected in young (18-35 years; n = 12) and older (60-75 years; n = 12) adult participants who repeatedly stood from a seated position until exhaustion. QF %MVIC was the sole predictor of total STS task times, as those who required the highest quadriceps efforts had the shortest task times. Moreover, older adult participants had significantly higher starting QF %MVIC as well as shorter task times. Interestingly, the H:Q ratio was not a significant predictor of STS capacities, nor did it differ between age groups or with fatigue. Results indicate that strengthening of the quadriceps to elevate or maintain strength reserves may improve an older adult's ability to perform multi-joint tasks repetitively throughout the day. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 75 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Switzerland | 1 | 1% |
| Unknown | 74 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 15 | 20% |
| Researcher | 10 | 13% |
| Student > Bachelor | 10 | 13% |
| Student > Ph. D. Student | 7 | 9% |
| Student > Doctoral Student | 5 | 7% |
| Other | 12 | 16% |
| Unknown | 16 | 21% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 14 | 19% |
| Nursing and Health Professions | 13 | 17% |
| Medicine and Dentistry | 9 | 12% |
| Engineering | 5 | 7% |
| Agricultural and Biological Sciences | 4 | 5% |
| Other | 9 | 12% |
| Unknown | 21 | 28% |
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 20 March 2017.
All research outputs
#22,764,772
of 25,382,440 outputs
Outputs from Aging Clinical and Experimental Research
#1,705
of 1,867 outputs
Outputs of similar age
#285,524
of 324,869 outputs
Outputs of similar age from Aging Clinical and Experimental Research
#32
of 40 outputs
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