Shoulder rotator strength in patients with stage I-II subacromial impingement: Relationship to pain, disability, and quality of life

Erol, Özlem; Özçakar, Levent; Çeliker, Reyhan

doi:10.1016/j.jse.2008.05.043

Cited by 44 publications

(48 citation statements)

References 24 publications

(47 reference statements)

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“…8 Thus, younger individuals did not present reduction of medial rotation strength in the shoulders affected by SIS, unlike the individuals from 50 to 65 years of age. This alteration was also seen in the study by Erol et al, 12 which revealed a deficit of medical rotation strength in the group with SIS between 26 and 52 years of age, yet without division between age brackets. In contrast, in the study by Kim et al 5 the authors noted that individuals with SIS do not present alteration of medial rotation strength, since the most strongly impaired muscles are the supraspinatus and infraspinatus, which are external rotators.…”

Section: Discussionsupporting

confidence: 73%

Força do manguito rotador em indivíduos com síndrome do impacto comparado ao lado assintomático

Marcondes

Gonçalves

Vasconcelos³

et al. 2011

Acta ortop. bras.

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Objective: To evaluate the strength of internal rotation, external rotation and elevation of the shoulders of symptomatic compared with asymptomatic patients, associating muscle strength with joint function. Methods: Forty-eight individuals diagnosed with unilateral SIS were evaluated in relation to isomeric muscle strength of symptomatic and asymptomatic shoulders (using a hand-held isometric dynamometer), in addition to evaluating function using the Constant-Murley scale. The subjects were divided into 2 groups: group 1 = 35 to 49 years, group 2 = 50 to 65 years. Results: A reduction in strength of internal rotation, external rotation and elevation of the symptomatic shoulder were found, compared with the asymptomatic side (p <0.0001), but there was no reduction in the strength of medial rotation in the subjects of group 1. It was observed that muscle strength is directly proportional to shoulder function, with individuals with little strength of the rotator cuff having less function. Conclusion: SIS causes decreased muscle strength of internal rotation, external rotation and elevation compared with the asymptomatic side. It also causes decreased shoulder function. The reduced function is proportional to the decrease in muscle strength of the rotator cuff. Level of evidence: level III, analytical study.

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Section: Discussionsupporting

confidence: 73%

Força do manguito rotador em indivíduos com síndrome do impacto comparado ao lado assintomático

Marcondes

Gonçalves

Vasconcelos³

et al. 2011

Acta ortop. bras.

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“…These assumptions generated a sample size of at least 19 subjects. The acceleration time was the variable chosen for the calculation of the sample size as some investigations have demonstrated that SIS does not affect muscle torque of the shoulder [39][40][41] , but affects scapular and rotator cuff muscle activity in subjects with SIS during arm elevation [42][43][44] . Therefore, the acceleration time may provide valuable information regarding neuromuscular readiness to produce maximal contraction.…”

Section: Sample Size Calculationmentioning

confidence: 99%

Eccentric training for shoulder abductors improves pain, function and isokinetic performance in subjects with shoulder impingement syndrome: a case series

Camargo¹,

Ávila²,

Alburquerque‐Sendín³

et al. 2012

Rev. bras. fisioter.

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“…Isokinetic testing in a SSI group and an asymptomatic group using a similar age group, tested in the seated position, with the shoulder positioned in the scapular plane, has been reported in five previous studies (Dulgeroglu et al, 2013;Erol et al, 2008;Leroux et al, 1994;MacDermid et al, 2004;Tyler et al, 2005).…”

Section: Discussionmentioning

confidence: 78%

“…One study reported within group differences of an SSI group compared to within group differences of an asymptomatic group (Erol et al, 2008). Only right hand dominant participants were recruited to both groups and matched for age, sex, height and body weight, with concentric testing performed at 60 0 sec.…”

Section: Discussionmentioning

confidence: 99%

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Isokinetic clinical assessment of rotator cuff strength in subacromial shoulder impingement

Land

Gordon

Watt

2017

Musculoskeletal Science and Practice

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Background: Current conservative management of subacromial shoulder impingement (SSI) includes generic strengthening exercises, especially for internal (IR) and external (ER) shoulder rotators. However, there is no evidence that the strength or the ratio of strength between these muscle groups is different between those with SSI (cases) and an asymptomatic population (controls).Objective: To identify if isokinetic rotator cuff strength or the ratio of strength is significantly different between cases and controls.Study Design: Case Control Study.Method: Fifty one cases with SSI and 51 asymptomatic controls matched for age, gender, hand dominance and physical activity level completed isokinetic peak torque glenohumeral IR and ER testing. Within the SSI group, 31 dominant limbs were symptomatic and 20 non-dominant limbs were symptomatic. IR and ER were measured separately using continuous reciprocal concentric (con) and eccentric (ecc) contraction cycles at a speed of 60 0 degrees per second and again at 120 0 degrees per second. Values of peak torque (PT), relative peak torque (RPT) and ratios were compared using independent t-tests between the SSI and asymptomatic groups.Results: Significant strength differences between the two groups were present only when the symptomatic SSI shoulder was the dominant shoulder (con ER PT at 60 0 /second, ecc ER PT at 120 0 /second, ecc ER RPT at 120 0 /second and ecc IR PT at 60 0 /second and 120 0 /second). Conclusions:Changes in rotator cuff strength in SSI may be related to limb dominance, which may have implications for strengthening regimes. Level of Evidence:Level 3a

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Shoulder rotator strength in patients with stage I-II subacromial impingement: Relationship to pain, disability, and quality of life

Cited by 44 publications

References 24 publications

Força do manguito rotador em indivíduos com síndrome do impacto comparado ao lado assintomático

Força do manguito rotador em indivíduos com síndrome do impacto comparado ao lado assintomático

Eccentric training for shoulder abductors improves pain, function and isokinetic performance in subjects with shoulder impingement syndrome: a case series

Isokinetic clinical assessment of rotator cuff strength in subacromial shoulder impingement

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