An unstable support surface does not increase scapulothoracic stabilizing muscle activity during push up and push up plus exercises

Lehman, Gregory J; Gilas, Danielle; Patel, U. S.

doi:10.1016/j.math.2007.05.016

Cited by 105 publications

(117 citation statements)

References 14 publications

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“…12,30,36,39,56,61 Therefore, rehabilitation exercises that target activation of the scapular muscles have been evaluated using electromyography (EMG) in a number of studies. 8,10,11,13,20,22,30,34,35,38,41,47,50 While these previous studies provided useful information regarding the muscles being activated during various exercises, they did not document the associated scapular kinematics. Measurement of the scapular and clavicular movement, along with muscle activity during exercises, will provide additional information clinicians can use to select exercises based on their patient's needs.…”

Section: Instrumentationmentioning

confidence: 98%

Three-Dimensional Scapular and Clavicular Kinematics and Scapular Muscle Activity During Retraction Exercises

Oyama

Myers²,

Wassinger

et al. 2010

Journal of Orthopaedic & Sports Physical Therapy

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Sakiko oyama, MS, ATC1 • Joseph B. Myers, PhD, ATC2 Craig a. Wassinger, PT, PhD3 • sCott M. Lephart, PhD, ATC 4 p roper movement of the scapula and clavicle is essential in minimizing stress applied to tissues surrounding the glenohumeral joint during overhead movements. 15,29,32,36,39,40,56,61 Scapular/clavicular movement maintains line of pull and length-tension relationship of the rotator cuff muscles throughout humeral range of motion. 31,33,39,64 This enables the rotator cuff muscles to produce joint compression while minimizing translation of the Three-Dimensional Scapular and Clavicular Kinematics and Scapular Muscle Activity During Retraction Exercises t stUDy Design: Controlled laboratory study.t oBJeCtiVes: To describe and compare scapular and clavicular kinematics and muscle activity during 6 retraction exercises in young healthy adults (mean  SD age, 23.2  2.4 years).

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Section: Instrumentationmentioning

confidence: 98%

Three-Dimensional Scapular and Clavicular Kinematics and Scapular Muscle Activity During Retraction Exercises

Oyama

Myers²,

Wassinger

et al. 2010

Journal of Orthopaedic & Sports Physical Therapy

View full text Add to dashboard Cite

show abstract

“…The infraspinatus electrode was placed medial to the posterior deltoid approximately 1 cm below the spine of the scapular. The latissimus dorsi electrode was placed 3 fingerbreadths distal to and along the posterior axillary fold, parallel to the lateral border of the scapular 1,9,11) . Surface electrodes were attached along the direction of the muscle fibers of each muscle group, and ground electrodes were placed around the C6 spinous process.…”

Section: Methodsmentioning

confidence: 99%

“…Recent rehabilitation programs recommend the use of the push-up plus on an unstable surface in order to increase the activities of the muscles around the scapula, proprioception, and balance of shoulder movement. Also, various researches are being performed to investigate the differences in muscle activities evoked by different supporting surfaces [8][9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

Periscapular Muscle Activities and Kinematic Analysis of the Performed on Different Supporting Surfaces for the Lower Limbs Push-up Plus Exercise

Yoon

Lee

2013

J Phys Ther Sci

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Abstract. [Purpose] This study examined periscapular muscle activities and performed a kinematic analysis of the push-up plus exercises with the lower limbs supported on a stable surface (bench) and an unstable surface (elastic ball). [Subjects and Method] The subjects were 15 college students. Surface electromyograms were recorded of the upper trapezius, serratus anterior, latissimus dorsi, and infraspinatus while the subjects performed the push-up plus exercises with their feet placed on a bench or an elastic gym ball. Markers for kinematic changes of elbow flexion, shoulder extension, shoulder retraction and scapular adduction were attatched the C7 and T7 spinous processes, both acromions, scapula superior and inferior angles, humeral lateral epicondyles, and ulnar styloid processes. The subjects completed three sets of push-up plus exercise. Three dimensional angles were calculated for the elbow, glenohumeral and scapulothoracic joint motions. The collected data were analyzed using the paired t-test and SPSS 18.0.[Result] There were statistically significant increase in the serratus anterior, infraspinatus, latissimus dorsi muscle activities during push-up plus exercise performed on the unstable surface, while the activity of upper trapezius increased during push up plus exercise performed on the stable surface. The angle of shoulder extension was significantly greater on the stable surface than on the unstable surface. The length of scapular adduction was significantly greater on the stable surface than on the unstable surface.[Conclusion] When the push-up plus exercise was performed on an unstable surface, recruitment of the periscapular muscles helped to stabilize the instable scapula.

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“…Electromyography (EMG) signals were amplified, and sampled at 1000 Hz using a MP 150 system (Biopack System, Santa Barbara, CA, USA). The surface electrodes were placed on the dominant right side of the middle serratus anterior (MSA), at approximately the mid-axillary line of the right side over the 5th rib, and the lower serratus anterior (LSA), on the belly of the muscle that branched to the 7th rib 9,10) . EMGs of maximal voluntary isometric contractions were recorded to enable normalization of the EMG amplitude.…”

Section: Methodsmentioning

confidence: 99%

Comparison of the Middle and Lower Serratus Anterior Muscle Activities during Various Wall Push-up Plus Exercises

Yoo

2013

J Phys Ther Sci

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Abstract. [Purpose] This study compared the effects of wall push-up plus conditions on activation of the middle serratus anterior (MSA) and lower serratus anterior (LSA), and investigated which exercise selectively activated each part of the serratus anterior.[Subjects] Sixteen subjects were recruited.[Methods] Surface electrodes were placed over the middle and lower serratus anterior. The subjects performed the wall push-up plus exercise under three conditions. [Result] Condition 3 (39.9 ± 12.4%) significantly increased MSA activity compared to condition 1 (32.0 ± 16.8%). Condition 2 (40.7 ± 15.2%) significantly increased LSA activity compared to condition 1 (32.6 ± 10.5%). [Conclusion] We think that each part of the serratus anterior muscle is activated differently according to the protraction direction and surface condition during wall push-up plus exercise.

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An unstable support surface does not increase scapulothoracic stabilizing muscle activity during push up and push up plus exercises

Cited by 105 publications

References 14 publications

Three-Dimensional Scapular and Clavicular Kinematics and Scapular Muscle Activity During Retraction Exercises

Three-Dimensional Scapular and Clavicular Kinematics and Scapular Muscle Activity During Retraction Exercises

Periscapular Muscle Activities and Kinematic Analysis of the Performed on Different Supporting Surfaces for the Lower Limbs Push-up Plus Exercise

Comparison of the Middle and Lower Serratus Anterior Muscle Activities during Various Wall Push-up Plus Exercises

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