CoChat
Sign Up
Cited by 156Muscle activation and electromyography studiesSports Performance and TrainingLower Extremity Biomechanics and Pathologies

The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.

Trunk Muscle Activation During Dynamic Weight-Training Exercises and Isometric Instability Activities

Hamlyn, Nicolle, Behm, David G., Young, Warren B.·2007·The Journal of Strength and Conditioning Research
DOI 10.1519/r-20366.1
Open this paper in CoChat — free account

Abstract

The purpose of this study was to examine the extent of activation in various trunk muscles during dynamic weight-training and isometric instability exercises. Sixteen subjects performed squats and deadlifts with 80% 1 repetition maximum (1RM), as well as with body weight as resistance and 2 unstable calisthenic-type exercises (superman and sidebridge). Electromyographic (EMG) activity was measured from the lower abdominals (LA), external obliques (EO), upper lumbar erector spinae (ULES), and lumbar-sacral erector spinae (LSES) muscle groups. Results indicated that the LSES EMG activity during the 80% 1RM squat significantly exceeded 80% 1RM deadlift LSES EMG activity by 34.5%. The LSES EMG activity of the 80% 1RM squat also exceeded the body weight squat, deadlift, superman, and sidebridge by 56, 56.6, 65.5, and 53.1%, respectively. The 80% 1RM deadlift ULES EMG activity significantly exceeded the 80% 1RM squat exercise by 12.9%. In addition, the 80% 1RM deadlift ULES EMG activity also exceeded the body weight squat, deadlift, superman, and sidebridge exercises by 66.7, 65.5, 69.3, and 68.6%, respectively. There were no significant changes in EO or LA activity. Therefore, the augmented activity of the LSES and ULES during 80% 1RM squat and deadlift resistance exercises exceeded the activation levels achieved with the same exercises performed with body weight and selected instability exercises. Individuals performing upright, resisted, dynamic exercises can achieve high trunk muscle activation and thus may not need to add instability device exercises to augment core stability training.

Overview

Integrity signals

Registry

Crossref · 10.1519/r-20366.1

Cites

22 of 22 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Flagged first, then by citations

Show all 20 references

Cited by

Sorted by citations

Items 101–156 of 156

Related

See all

Metadata

Authors
Hamlyn, N., Behm, D. G., & Young, W. B.
Affiliations
  • Memorial University of Newfoundland (CA)
  • Federation University (AU)
ORCID
Venue
The Journal of Strength and Conditioning Research
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
2007
Volume
21
Issue
4
Pages
1108
ISSN
  • 1064-8011 (ISSN-L)
  • 1533-4287
DOI
10.1519/r-20366.1
OpenAlex
W1989955657
Cited by
156
References
20
Citations by year
2026: 2 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 9 · 2021: 9 · 2020: 13 · 2019: 7 · 2018: 14 · 2017: 14 · 2016: 11 · 2015: 10 · 2014: 13 · 2013: 10 · 2012: 10
FWCI
3.83
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Strength and Conditioning Research (publishedVersion)
  • PubMed (publishedVersion)
  • FedUni ResearchOnline (Federation University Australia) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Physical Sciences › Engineering › Biomedical Engineering › Lower Extremity Biomechanics and Pathologies
Keywords
trunk muscle activity, weight training, core stability, squatting, deadlift, Superman, external oblique, electromyography, resistance training
MeSH terms
Abdominal Muscles, Adult, Electromyography, Female, Humans, Lumbosacral Region, Male, Physical Education and Training, Sacrococcygeal Region, Weight Lifting, Exercise

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review