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Loading conditions in the spine, hip and knee during different executions of back extension exercises

Overview of attention for article published in BMC Sports Science, Medicine and Rehabilitation, April 2017
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Title
Loading conditions in the spine, hip and knee during different executions of back extension exercises
Published in
BMC Sports Science, Medicine and Rehabilitation, April 2017
DOI 10.1186/s13102-017-0074-0
Pubmed ID
Authors

Florian Schellenberg, Nicole Schmid, Ramona Häberle, Nicole Hörterer, William R. Taylor, Silvio Lorenzetti

Abstract

Back extension (BE) is a strength exercise for training the dorsal trunk and hip muscles. To optimise training recommendations that avoid overloading and possible injury, the aim of this study was to determine the loading conditions and the influence of different execution forms of BE on spine, hip and knee ranges of motion (RoMs), joint moments and muscle activity. The kinematics, kinetics and muscle activity (EMG) of two execution types (BEh: dynamic hip, BEs: dynamic spine) and two versions (one-legged and two-legged) of BE were measured in 16 subjects. RoMs and external joint moments were calculated using an inverse dynamics approach and analysed with a linear mixed model. Although lumbar spine flexion was observed in both execution types, thoracic spine flexion predominantly occurred during BEs, whereas thoracic spine extension was observed during BEh. Larger maximal back and hip moments were observed for BEh than for BEs. The activity of the dorsal back and hip muscles, as observed using EMG, was increased for one-legged executions. To strengthen the hips and lower back, BEh seem to be more efficient due to the higher moments, with higher or similar RoMs in the hip and lower back. One-legged BEs seem to provide an effective training for the hamstrings and hip regions without subjecting the spine to excessive loading, possibly promoting this as an effective exercise during training and rehabilitation.

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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 67 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 67 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 12 18%
Student > Master 9 13%
Researcher 5 7%
Student > Doctoral Student 4 6%
Student > Ph. D. Student 4 6%
Other 13 19%
Unknown 20 30%
Readers by discipline Count As %
Sports and Recreations 13 19%
Medicine and Dentistry 10 15%
Engineering 9 13%
Nursing and Health Professions 8 12%
Agricultural and Biological Sciences 2 3%
Other 2 3%
Unknown 23 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 3. 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 11 May 2017.
All research outputs
#13,566,023
of 23,881,329 outputs
Outputs from BMC Sports Science, Medicine and Rehabilitation
#259
of 534 outputs
Outputs of similar age
#150,793
of 311,723 outputs
Outputs of similar age from BMC Sports Science, Medicine and Rehabilitation
#3
of 4 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. This one is in the 42nd percentile – i.e., 42% of other outputs scored the same or lower than it.
So far Altmetric has tracked 534 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.6. This one has gotten more attention than average, scoring higher than 50% 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 311,723 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 50% of its contemporaries.
We're also able to compare this research output to 4 others from the same source and published within six weeks on either side of this one.