Scapulothoracic Muscle Activation on Stable and Unstable Support Surfaces

Park, Se-yeon; Yoo, Won-gyu; Kwon, Hun Ki; Kim, Dong-Hyun; Lee, Si-eun; Park, Mijin

doi:10.1123/ijatt.18.1.25

Cited by 8 publications

(28 citation statements)

References 18 publications

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“…The dual-wall pushup plus exercise also produces a compression force that corrects the abnormal scapular position. Athletes and patients with shoulder injuries should perform appropriate, effective exercises to strengthen the shoulder muscles to prevent shoulder impairment and improve performance 9 ) .…”

Section: Discussionmentioning

confidence: 99%

Effect of the dual-wall pushup plus exercise in patients with scapular dyskinesis with a winged or tipped scapula

Yoo

2015

J Phys Ther Sci

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[Purpose] This study was performed to evaluate the clinical effect of the dual-wall pushup plus exercise in patients with scapular dyskinesis with a winged or tipped scapula. [Subject] A 32-year-old man with scapular dyskinesis participated in this study. [Methods] The subject performed the dual-wall pushup plus for 2 months, 4 days a week, for an average of 2 hours each day. The scapular dyskinesis test, linear distance of the acromion, acromion angle, and inferior scapular distance were evaluated before and after the exercise program. [Results] After 2 months of dual-wall pushup plus exercises, the scapular dyskinesis test was negative, the linear distance of the acromion decreased, the acromion angle increased, and the inferior scapular distance decreased compared with the initial measurements. [Conclusion] The dual-wall pushup plus exercise is an effective intervention in patients with scapular dyskinesis with a winged or tipped scapula.

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Section: Discussionmentioning

confidence: 99%

Effect of the dual-wall pushup plus exercise in patients with scapular dyskinesis with a winged or tipped scapula

Yoo

2015

J Phys Ther Sci

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“…Only data from healthy participants, who had not undergone therapeutic intervention prior to the evaluation, were included. Regarding EMG variables, 20 studies reported only %MVIC [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41], one study reported only muscle activation ratios [42], and eight studies measured both variables [7,[11][12][13][43][44][45][46]. All the investigations evaluated the UT EMG activity, 13 studies measured MT EMG activity [7,11,13,22,26,30,32,[36][37][38]40,41,46], and 21 measured the LT EMG activity [7,11-13,22,23,25-30, 32,36-41,44,46].…”

Section: Characteristics Of Included Studiesmentioning

confidence: 99%

“…The exercises analyzed in the articles were the Push Up, Scap Protraction, Pull Up, Press Up, and Plank and Wall Press, with different variations of each one. Fourteen studies evaluated the Push Up exercise and its variations [7,11,12,[24][25][26][28][29][30][31][32]41,42,45], nine studies evaluated the Scap Protraction exercise and its variations [7,13,25,27,33,34,36,43,44], five studies evaluated the Pull Up and its variations [7,37,38,40,46], two studies evaluated the Press Up [13,22], four studies evaluated the Plank and its variations [23,26,35,39], and three studies evaluated the Wall Press and its variations [24,36,43]. Fourteen studies used unstable surfaces as an exercise variation (e.g.…”

Section: Summary Of Activation Ratios and Exercisesmentioning

confidence: 99%

“…therapeutic ball, bosu, string, etc. ), and the therapeutic ball was the variation most used [7,12,[24][25][26][27][28][29][30][31]33,39,43,46]. Figures 2 and 3 show the main exercises with their respective variants and the Table 2 shows the muscle activation ratios UT/MT, UT/LT, and UT/SA according to each author.…”

Section: Summary Of Activation Ratios and Exercisesmentioning

confidence: 99%

“…The starting position is prone, shoulder at 90 • flexion, elbow and legs fully extended, with the weight distributed over the hands and feet. The elbows are flexed until the thorax almost touches the floor [12,26,28,29,31,41]. Three studies presented an optimal UT/SA ratio (0.07-0.48) [12,31,41].…”

Section: Push Upmentioning

confidence: 99%

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Optimal activation ratio of the scapular muscles in closed kinetic chain shoulder exercises: A systematic review

Méndez-Rebolledo

Morales-Verdugo

Orozco-Chavez

et al. 2021

BMR

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BACKGROUND: Muscle synergies contribute to scapular position during arm movement. The trapezius and serratus anterior (SA) muscles are the main stabilizers and are therefore the main target muscles of therapeutic exercises. OBJECTIVE: To systematically review the current literature investigating the optimal activation ratio of the scapular muscles during a range of closed kinetic chain exercises. METHODS: A systematic review search was conducted to identify studies reporting shoulder electromyography (EMG) activity during rehabilitation exercises in healthy participants. The search was conducted in PubMed, Cochrane Library, MEDLINE, CINAHL, Scopus, SPORTDiscus, and ScienceDirect. The included studies reported closed kinetic chain exercises and the muscle activity as a percentage of maximum voluntary isometric contraction (%MVIC) or muscle ratios of the lower trapezius (LT), middle trapezius (MT), and SA with respect to the upper trapezius (UT). Muscle ratios were classified as optimal if they were equal to or lower than 0.6, and the adapted Newcastle-Ottawa Scale (NOS) was used to evaluate the methodological quality of the selected studies. RESULTS: Twenty-nine studies were included in this review; 7 main exercises and 30 variations of these were reported. The average electromyographic activity of the concentric and eccentric phase was considered. Half Push Up, Push Up Plus, and Scap Protraction exercises showed optimal SA activity (UT/SA < 0.6), while Press Up, Half Push Up, and One Hand Plank exercises showed optimal LT activity (UT/LT < 0.6). According to the NOS, 15 studies were classified as moderate methodological quality. CONCLUSIONS: The exercises in higher positions (e.g. exercises with the trunk closest to the vertical line) or unstable surfaces tend to favor UT activity over the MT, LT and SA. The exercises including scapular retraction showed optimal UT/MT and UT/LT ratios, while those including scapular protraction showed optimal UT/SA ratios. This will assist therapists in the correct selection of exercises for shoulder rehabilitation.

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Effects of Push-Up Exercise Phase and Surface Stability on Activation of the Scapulothoracic Musculature

Park

Yoo

2013

International Journal of Athletic Therapy and Training

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Objective:The purpose of this study was to measure muscle activation during ascending and descending phases of the push-up exercise on both stable and unstable support surfaces.Participants:Fourteen asymptomatic male amateur badminton players. During push-up exercises on stable and unstable bases, muscle activation measurements were collected with phase divisions (ascending and descending phase).Methods:Electromyography (EMG) was utilized to measure activation of the upper trapezius (UT) and lower trapezius (LT), middle serratus anterior (MSA) and lower serratus anterior (LSA), pectoralis major (PM), and triceps brachii (TB) muscles.Results:An unstable support surface produced significantly greater activation of the UT, LT, LSA, and PM muscles than a stable support surface (p < 0.05). The MSA, LSA, TB, and PM muscles demonstrated greater activation during the ascending phase than the descending phase of the push-up exercise (p < 0.05).Conclusions:The unstable support surface appeared to produce relatively greater activation of the LSA than that of the MSA. The descending phase of the push-up did not demonstrate a higher level of activation for any of the muscles tested.

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Scapulothoracic Muscle Activation on Stable and Unstable Support Surfaces

Cited by 8 publications

References 18 publications

Effect of the dual-wall pushup plus exercise in patients with scapular dyskinesis with a winged or tipped scapula

Effect of the dual-wall pushup plus exercise in patients with scapular dyskinesis with a winged or tipped scapula

Optimal activation ratio of the scapular muscles in closed kinetic chain shoulder exercises: A systematic review

Effects of Push-Up Exercise Phase and Surface Stability on Activation of the Scapulothoracic Musculature

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