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Validity and reliability of simple measurement device to assess the velocity of the barbell during squats

Overview of attention for article published in BMC Research Notes, December 2017
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  • Good Attention Score compared to outputs of the same age (66th percentile)
  • Good Attention Score compared to outputs of the same age and source (76th percentile)

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Title
Validity and reliability of simple measurement device to assess the velocity of the barbell during squats
Published in
BMC Research Notes, December 2017
DOI 10.1186/s13104-017-3012-z
Pubmed ID
Authors

Silvio Lorenzetti, Thomas Lamparter, Fabian Lüthy

Abstract

The velocity of a barbell can provide important insights on the performance of athletes during strength training. The aim of this work was to assess the validity and reliably of four simple measurement devices that were compared to 3D motion capture measurements during squatting. Nine participants were assessed when performing 2 × 5 traditional squats with a weight of 70% of the 1 repetition maximum and ballistic squats with a weight of 25 kg. Simultaneously, data was recorded from three linear position transducers (T-FORCE, Tendo Power and GymAware), an accelerometer based system (Myotest) and a 3D motion capture system (Vicon) as the Gold Standard. Correlations between the simple measurement devices and 3D motion capture of the mean and the maximal velocity of the barbell, as well as the time to maximal velocity, were calculated. The correlations during traditional squats were significant and very high (r = 0.932, 0.990, p < 0.01) and significant and moderate to high (r = 0.552, 0.860, p < 0.01). The Myotest could only be used during the ballistic squats and was less accurate. All the linear position transducers were able to assess squat performance, particularly during traditional squats and especially in terms of mean velocity and time to maximal velocity.

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X Demographics

The data shown below were collected from the profiles of 4 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 129 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 129 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 28 22%
Student > Bachelor 20 16%
Researcher 10 8%
Student > Doctoral Student 10 8%
Student > Ph. D. Student 6 5%
Other 15 12%
Unknown 40 31%
Readers by discipline Count As %
Sports and Recreations 62 48%
Nursing and Health Professions 4 3%
Medicine and Dentistry 3 2%
Social Sciences 3 2%
Agricultural and Biological Sciences 3 2%
Other 10 8%
Unknown 44 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 4. 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 30 October 2019.
All research outputs
#7,227,647
of 23,011,300 outputs
Outputs from BMC Research Notes
#1,156
of 4,284 outputs
Outputs of similar age
#143,865
of 439,982 outputs
Outputs of similar age from BMC Research Notes
#46
of 194 outputs
Altmetric has tracked 23,011,300 research outputs across all sources so far. This one has received more attention than most of these and is in the 68th percentile.
So far Altmetric has tracked 4,284 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.6. This one has gotten more attention than average, scoring higher than 72% of its peers.
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 439,982 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 66% of its contemporaries.
We're also able to compare this research output to 194 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 76% of its contemporaries.