Evaluation of the EMG–force relationship of trunk muscles during whole body tilt

Anders, C.; Brose, G.; Hofmann, Gunther O.; Scholle, Hans‐Christoph

doi:10.1016/j.jbiomech.2007.09.008

Cited by 61 publications

(41 citation statements)

References 34 publications

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“…When disabled people maintain forward and backward tilt, the muscles of lumbar vertebrae part (external oblique muscle and erector spinae of lumbar vertebrae part) are mainly used. This is similar to the results of the preceding study asserting trunk central muscle contributes to trunk stability (Cholewicki and McGill 1996;Kibler et al, 2006;Anders et al, 2008;Kim 2010). As for the dynamic training test of backward tilt, the result of this study confirmed high negative correlation between performing ability and lumbar vertebrae part muscles.…”

Section: J Ergon Soc Koreasupporting

confidence: 92%

“…Of the muscles involved in trunk stability, this study conducted experiments by choosing four superficial muscles (upper rectus abdominal, externals oblique muscle, erector spinae of thoracic vertebrae part and erector spinae of lumbar vertebrae part) that can be measured by surface electromyography (Anders et al, 2008). As for electrodes attachment location, they were attached to muscle belly using the method presented by the SENIAM project (Hermens et al, 1999).…”

Section: Electromyographymentioning

confidence: 99%

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Correlations between Biomechanical Characteristics, Physical Characteristics, and the Ability to Maintain Dynamic Sitting Balance on an Unstable Surface in the Disabled with Spinal Cord Injury

Kim¹,

Chang²,

Kim³

2014

Journal of the Ergonomics Society of Korea

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Objectiv e:This study aims to analyze the factors that affect the ability to maintain dynamic sitting balance (DSB), biomechanical characteristics, and physical characteristics in spinal cord injuries (SCI) patients.Background: Virtual ski training systems, ski equipment, and training protocols for disabled skiers are being studied to spread awareness. However, few studies have been reported on the sitting balance ability associated with chair mono skiing. Method:A dynamic sitting balance border system was built to investigate the ability to maintain dynamic sitting balance in SCI patients. Trunk muscle activity was evaluated by electromyogram while conducting dynamic sitting balance tests.The trunk muscle strength was tested with a portable handheld dynamometer. Physical activity scores were measured with the physical activity recall assessment.Results: There were high levels of correlation between the ability to maintain DSB and trunk flexor strength, extensor strength, rotator strength, and physical activity score. However, height, weight, and injury level in SCI patients were not correlated with the ability to maintain DSB. Additionally, strong negative correlations were found between muscle activities of the external oblique and lumbar erector spinae muscles and the ability to perform the backward tilt test. Trunk extensor muscle activity during the ball lifting test was significantly higher than in other tests. Conclusion:The results indicate that improving trunk muscle strength and physical activity can increase the ability to maintain DSB. Application:The findings of a close relationship between trunk strength, physical activity, and the ability to maintain DSB need to be reflected in the chair mono ski training program.

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Section: J Ergon Soc Koreasupporting

confidence: 92%

Section: Electromyographymentioning

confidence: 99%

Correlations between Biomechanical Characteristics, Physical Characteristics, and the Ability to Maintain Dynamic Sitting Balance on an Unstable Surface in the Disabled with Spinal Cord Injury

Kim¹,

Chang²,

Kim³

2014

Journal of the Ergonomics Society of Korea

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“…Anders et al analyzed muscle activity in the leaning motion of the human body using Centaur, and measured and compared the muscle activation according to gender and age during the leaning motion in horizontal and vertical directions [16,17]. Also, Kim et al suggested effective exercise methods of spine stabilization by evaluating the muscle activity depending on the axis rotation during front and back leaning with three-dimensional (3D) lumbar stabilization devices [11].…”

Section: Introductionmentioning

confidence: 99%

A study on trunk muscle activation patterns according to tilt angle during whole body tilts

Shin

Kang

Kwon

et al. 2017

THC

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Abstract. BACKGROUND:Lower back pain has a lifetime prevalence of 80% for people in a modern society, and in recent years, spinal stabilization movement has been highlighted as a method to treat lower back pain and an unbalanced position. OBJECTIVE: The objectives of this study were to assess the trunk muscle activities in accordance with the tilt angles (10• , 20• , 30• , 40• ) during trunk tilt exercises with a 3D dynamic exercise device. METHODS: Active tilt mode (a self-generated active movement in the angle and direction steered by the user) was used in this study. The rotation capability enabled the investigation of the anterior (A), anterior right (AR), right (R), posterior right (PR), posterior (P), posterior left (PL), left (L), and anterior left (AL) tilt directions. EMG signals of the trunk (3 global muscles: rectus abdominis, RA, external obliques, EO, latissimus dorsi, LD, and 1 local muscle: multifidus, MF) muscles were obtained. RESULTS: The MF muscle activity was higher while the anterior tilt was maintained, and the abdominal muscle activity was higher while the posterior tilt was maintained. Also, as the tilt angle increased, the activity of the muscles opposite the tilt direction increased. CONCLUSIONS:The results indicate that to maintain equilibrium through posture stabilization during whole body tilting, the human body maintains a proper interaction among the body segments as well as between the body and the execution environment. Moreover, stability is maintained through the co-contraction of antagonistic and agonistic muscles. In future studies, it will be important to conduct research on improving imbalance in the trunk muscles.

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“…Recently, the spine stabilization exercise that allows strengthening of the core muscles under static body posture using 3D spinal stabilization devices has been introduced as an alternative and used in hospitals to provide rehabilitation treatment for surgery patients [9,10]. However, the effect of these devices on spinal behavior such as internal forces at the joint level and muscle activation patterns during the exercise has not yet been investigated.…”

Section: Introductionmentioning

confidence: 99%

Core muscle Strengthening Effect During Spine Stabilization Exercise

Han¹,

Nam²

2015

Journal of Electrical Engineering and Technology

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-Core spinal muscles are related to trunk stability and assume the main role of stabilizing the spine during daily activities; strengthening of core muscles around the spine can therefore reduce the chance of back pain. The objective of the study was to investigate the effect of core muscle strengthening in the spine during spine stabilization exercise using a whole body tilt device. To achieve this, a validated musculoskeletal (MS) model of the whole body was used to replicate the input motion from the whole body tilting exercise. An inverse dynamics analysis was executed to estimate spine loads and muscle forces depending on the tilting angles of the exercise device. The activation of long and superficial back muscles such as the erector spinae (iliocostalis and longissimus) were mainly affected by the forward direction (-40°) of the tilt, while the front muscles (psoas major, quadratus lumborum, and external and internal obliques) were mainly affected by the backward tilting direction (40°). Deep muscles such as the multifidi and short muscles were activated in most directions of the rotation and tilt. The backward directions of the tilt using this device could be carefully applied for the elderly and for rehabilitation patients who are expected to have less muscle strength. In this study, it was shown that the spine stabilization exercise device can provide considerable muscle exercise effect.

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Evaluation of the EMG–force relationship of trunk muscles during whole body tilt

Cited by 61 publications

References 34 publications

Correlations between Biomechanical Characteristics, Physical Characteristics, and the Ability to Maintain Dynamic Sitting Balance on an Unstable Surface in the Disabled with Spinal Cord Injury

Correlations between Biomechanical Characteristics, Physical Characteristics, and the Ability to Maintain Dynamic Sitting Balance on an Unstable Surface in the Disabled with Spinal Cord Injury

A study on trunk muscle activation patterns according to tilt angle during whole body tilts

Core muscle Strengthening Effect During Spine Stabilization Exercise

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