Arthroscopic Treatment of Combined Shoulder Instability and Rotator Cuff Tear

Gladstein, Aharon Z.; Kelly, John D.

doi:10.1007/978-3-319-63668-9_7

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…It has been also concluded that measuring the strength ratio of concentric and eccentric contraction in internal and external rotator muscles has been more important and in this measurement, the possible deficiency could be determined and a proper exercise could be designed (28, 29). Hence Baker and Matalino studied internal and external rotator muscles' strength for concentric contraction in baseball players and reported that more internal rotator muscle strength is necessary for throwing speed (29). In 2012, Kilber et al concluded that closed kinetic chain exercises are more effective for function and posture of the scapula as well as glenohumeral joint and simulate the natural position of the shoulder joint, while enhances proprioception and muscle activation.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Eight Weeks Closed and Open Kinetic Chain Exercise on Ratio of the External to Internal Shoulder Rotator Muscles’ Strength in Top Swimmers

Shahpar

Rahnama

Salehi

2019

Hormozgan medical journal

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Objectives: Based on previous studies, the strength ratio of internal to external rotator muscles of the shoulder in elite swimmers is a predisposing factor of impingement syndrome. So this study was done to compare the effect of open and closed kinetic chain exercises on this ratio. Methods: Regarding the inclusion criteria, 45 swimmers were selected and distributed randomly to 3 groups of the open chain (15), closed chain (15), and control (15). Exercise prescribed for both open and closed chain groups three times per week, but the control group was deprived. Before starting the exercise and after eight weeks, the strength ratio of the internal to the external rotator shoulder muscles in both eccentric and concentric contraction was measured at various speeds of 60, 120, and 180 degrees/s. Subsequently, one-way ANOVA and Tukey post hoc tests were performed to compare the groups and show the intra-group difference (P < 0.05). Results: Both types of exercises reduced the strength ratio of internal to external shoulder rotator muscles in both contractions. There was no significant difference between closed and open chain exercises, but the open chain reduced the ratio of internal to external rotator muscles' strength less than the closed chain in both types of contractions. Conclusions: To reduce the ratio of internal to external rotator muscles' strength in swimmers and improve the muscle imbalance, open kinetic chain exercises are more effective than closed kinetic chain exercises and can be recommended for prevention and rehabilitation of swimmer's shoulder.

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Section: Discussionmentioning

confidence: 99%

The Impact of Eight Weeks Closed and Open Kinetic Chain Exercise on Ratio of the External to Internal Shoulder Rotator Muscles’ Strength in Top Swimmers

Shahpar

Rahnama

Salehi

2019

Hormozgan medical journal

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“…There are various treatments for shoulder injuries which range from exercise therapy and electrotherapy to plasma rich protein (PRP), arthroscopic surgery, and open surgery. Among them, exercise therapy is the one which could enhance both the mobility and stability of the shoulder (5)(6)(7)(8).…”

Section: Introductionmentioning

confidence: 99%

The Effect of 8 Weeks Open and Closed Kinetic Chain Strength Training on the Torque of the External and Internal Shoulder Rotator Muscles in Elite Swimmers

2019

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Objectives: In accordance with the multiple causes of impingement syndrome being a major injury of the swimmers' shoulder, choosing an effective method in preventing shoulder injury is important. The purpose of this study was to compare the effect of eight weeks open and closed kinetic chain exercises on muscle torque of internal and external rotators of shoulder in elite swimmers. Methods: In this study, 45 swimmers were selected based on the inclusion criteria and divided randomly and equally into three groups of open chain, closed chain exercises, and control. Both open and closed chain groups performed their own exercises three times a week for eight weeks, but no upper extremity exercises were given to the control group. Before the training, the pick torque of the external and internal rotators of shoulder were measured by the isokinetic HUMAC NORM machine at various speeds of 60, 120 and 180 degrees/s. After eight weeks of practice, the variables were re-measured. Shapiro-Wilk test was used for data normalization, one-way ANOVA and Tukey post hoc testes were used accordingly to compare the groups and to show the intra-group difference (P < 0.05). Results: The results of this study showed that eight weeks of open and closed chain training improved the torque of internal and external shoulder rotator muscles at 60, 120 and 180 degrees per second (P < 0.05). There was a significant difference between open chain and closed chain exercises, and the effect of open chain was more than closed chain training (P < 0.05). Conclusions: According to this study, it can be concluded that open and closed kinetic chain exercises improve the torque of the external and internal rotating muscles in swimmers. They also suggest that kinetic chain exercises are more effective than closed kinetic chain exercises in this regard so could be prescribed for swimmers.

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Arthroscopic Treatment of Combined Shoulder Instability and Rotator Cuff Tear

Cited by 2 publications

References 18 publications

The Impact of Eight Weeks Closed and Open Kinetic Chain Exercise on Ratio of the External to Internal Shoulder Rotator Muscles’ Strength in Top Swimmers

The Impact of Eight Weeks Closed and Open Kinetic Chain Exercise on Ratio of the External to Internal Shoulder Rotator Muscles’ Strength in Top Swimmers

The Effect of 8 Weeks Open and Closed Kinetic Chain Strength Training on the Torque of the External and Internal Shoulder Rotator Muscles in Elite Swimmers

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