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Mendeley readers
Attention Score in Context
| Title |
Quadriceps performance under activation of foot dorsal extension in healthy volunteers: an interventional cohort study
|
|---|---|
| Published in |
BMC Musculoskeletal Disorders, November 2015
|
| DOI | 10.1186/s12891-015-0774-0 |
| Pubmed ID | |
| Authors |
Felix Angst, Martina Kaufmann, Thomas Benz, Stefan Nehrer, André Aeschlimann, Susanne Lehmann |
| Abstract |
The m. quadriceps femoris is the strongest muscle in the human body and plays an important role in sports, activities of daily living and independence. Two older studies showed increased electromyographic (EMG) activity of the quadriceps when the dorsal extensors of the foot were pre-activated. The aim was to physiologically replicate this finding by EMG and to verify it functionally by single leg hop. EMG activity (root mean square, RMS) was tested on the leg press at the isometric load of the individual 12-repetition-maximum (12RM) weight (on average 79.7 kg) at 45° and 90° knee flexion. Single leg hop distance was measured between the tests. Intra-individual changes between with and without dorsal foot extension were quantified and compared by standardized response means (SRM). Thirty-five healthy subjects between 21 and 57 years were included. The m. vastus medialis was activated on average to an RMS of 32.4 μV without and 53.7 μV with dorsal foot extension (SRM = 1.39, p < 0.001) at 45° knee flexion and an RMS of 124.9 μV versus 152.8 μV (SRM = 1.08, p < 0.001) at 90°. The corresponding data for the rectus femoris were 9.4 μV versus 18.9 μV (SRM = 0.71, p < 0.001) at 45° and 77.8 μV versus 135.3 μV (SRM = 0.89, p < 0.001) at 90°. Mean single leg hop distance was 169.8 cm without versus 178.9 cm with dorsal foot extension (SRM = 1.09, p < 0.001). Pre-activation of dorsal foot extensors significantly increased EMG activity in the m. quadriceps femoris and single leg hop distance. It can therefore be used to improve functional quadriceps muscle performance and knee joint stability in training and rehabilitation. |
Mendeley readers
The data shown below were compiled from readership statistics for 26 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 26 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 5 | 19% |
| Student > Bachelor | 3 | 12% |
| Student > Master | 3 | 12% |
| Professor | 1 | 4% |
| Other | 1 | 4% |
| Other | 2 | 8% |
| Unknown | 11 | 42% |
| Readers by discipline | Count | As % |
|---|---|---|
| Nursing and Health Professions | 3 | 12% |
| Sports and Recreations | 2 | 8% |
| Agricultural and Biological Sciences | 2 | 8% |
| Medicine and Dentistry | 2 | 8% |
| Environmental Science | 1 | 4% |
| Other | 1 | 4% |
| Unknown | 15 | 58% |
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 12 April 2021.
All research outputs
#15,350,522
of 22,833,393 outputs
Outputs from BMC Musculoskeletal Disorders
#2,457
of 4,045 outputs
Outputs of similar age
#167,114
of 285,670 outputs
Outputs of similar age from BMC Musculoskeletal Disorders
#51
of 76 outputs
Altmetric has tracked 22,833,393 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,045 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.1. This one is in the 28th percentile – i.e., 28% 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 285,670 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 76 others from the same source and published within six weeks on either side of this one. This one is in the 18th percentile – i.e., 18% of its contemporaries scored the same or lower than it.