Empty Can Test: Difference between revisions
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'''Original Editor '''- [[User:Tyler Shultz|Tyler Shultz]] | '''Original Editor '''- [[User:Tyler Shultz|Tyler Shultz]] | ||
'''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | ||
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== Purpose == | |||
The Empty Can Test is used to assess the supraspinatus muscle and tendon.<br> | |||
== Technique<ref>Jobe, F.W., Moynes D.R. (1982) Delineation of diagnostic criteria and a rehabilitation program for rotator cuff injuries. American Journal of Sports Medicine. 10, 336-339</ref> == | |||
== Technique<ref>Jobe, F.W., Moynes D.R. (1982) Delineation of diagnostic criteria and a rehabilitation program for rotator cuff injuries. American Journal of Sports Medicine. 10, 336-339</ref | |||
The patient can be seated or standing for this test. The patient's arm should be elevated to 90 degrees in the scapular plane, with the elbow extended, full internal rotation, and pronation of the forearm. This results in a thumbs-down position, as if the patient were pouring liquid out of a can. The therapist should stabilize the shoulder while applying a downwardly directed force to the arm, the patient tries to resist this motion. This test is considered positive if the patient experiences pain or weakness with resistance. | The patient can be seated or standing for this test. The patient's arm should be elevated to 90 degrees in the scapular plane, with the elbow extended, full internal rotation, and pronation of the forearm. This results in a thumbs-down position, as if the patient were pouring liquid out of a can. The therapist should stabilize the shoulder while applying a downwardly directed force to the arm, the patient tries to resist this motion. This test is considered positive if the patient experiences pain or weakness with resistance. | ||
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|{{#ev:youtube|nphhgdDlHBE|300}}<ref>Physiotutors. The Problem with "Can Tests" and a Better Alternative. Available from: https://www.youtube.com/watch?v=nphhgdDlHBE</ref> | |{{#ev:youtube|nphhgdDlHBE|300}}<ref>Physiotutors. The Problem with "Can Tests" and a Better Alternative. Available from: https://www.youtube.com/watch?v=nphhgdDlHBE</ref> | ||
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== Evidence == | == Evidence == | ||
Boettcher CE, et al.<ref>Boettcher CE, Ginn KA, Cathers I. The ‘empty can’ and ‘full can’ tests do not selectively activate supraspinatus. J Sci Med Sport (2008), doi:10.1016/j.jsams.2008.09.005</ref> demonstrated with | Boettcher CE, et al.<ref>Boettcher CE, Ginn KA, Cathers I. The ‘empty can’ and ‘full can’ tests do not selectively activate supraspinatus. J Sci Med Sport (2008), doi:10.1016/j.jsams.2008.09.005</ref> demonstrated with normalized EMG that the Empty Can Test activates supraspinatus to levels approximately 90% MVC. Concurrent activation of other shoulder muscles tested including other rotator cuff muscles (infraspinatus and upper subscapularis), scapular positioning muscles (upper, middle and lower trapezius, and serratus anterior), and abduction torque producing muscles (anterior, middle & posterior deltoid) were activated to similarly high levels. | ||
Therefore, the Empty Can Test must be questioned as a valid diagnostic tool for isolated supraspinatus pathology, due to the high activation of many shoulder muscles simultaneously.<br> | |||
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== References == | == References == | ||
<references /> | <references /> | ||
[[Category:Special_Tests]] [[Category:Shoulder]] [[Category:Shoulder Special Tests]] [[Category:Musculoskeletal/Orthopaedics]] | |||
Revision as of 06:17, 6 December 2017
Original Editor - Tyler Shultz
Top Contributors - Rachael Lowe, Laura Ritchie, Tyler Shultz, Albert Alonso, Kim Jackson, Kai A. Sigel, Admin, WikiSysop, Evan Thomas, Naomi O'Reilly, Vanessa Rhule, Claire Knott, Wanda van Niekerk, Anas Mohamed and Jonathan Wong
Purpose[edit | edit source]
The Empty Can Test is used to assess the supraspinatus muscle and tendon.
Technique[1][edit | edit source]
The patient can be seated or standing for this test. The patient's arm should be elevated to 90 degrees in the scapular plane, with the elbow extended, full internal rotation, and pronation of the forearm. This results in a thumbs-down position, as if the patient were pouring liquid out of a can. The therapist should stabilize the shoulder while applying a downwardly directed force to the arm, the patient tries to resist this motion. This test is considered positive if the patient experiences pain or weakness with resistance.
| [2] | [3] |
Evidence[edit | edit source]
Boettcher CE, et al.[4] demonstrated with normalized EMG that the Empty Can Test activates supraspinatus to levels approximately 90% MVC. Concurrent activation of other shoulder muscles tested including other rotator cuff muscles (infraspinatus and upper subscapularis), scapular positioning muscles (upper, middle and lower trapezius, and serratus anterior), and abduction torque producing muscles (anterior, middle & posterior deltoid) were activated to similarly high levels.
Therefore, the Empty Can Test must be questioned as a valid diagnostic tool for isolated supraspinatus pathology, due to the high activation of many shoulder muscles simultaneously.
References[edit | edit source]
- ↑ Jobe, F.W., Moynes D.R. (1982) Delineation of diagnostic criteria and a rehabilitation program for rotator cuff injuries. American Journal of Sports Medicine. 10, 336-339
- ↑ Physiotutors. Jobe / Empty Can Test | Shoulder Impingement. Available from: https://www.youtube.com/watch?v=5BjDQ-jcBek
- ↑ Physiotutors. The Problem with "Can Tests" and a Better Alternative. Available from: https://www.youtube.com/watch?v=nphhgdDlHBE
- ↑ Boettcher CE, Ginn KA, Cathers I. The ‘empty can’ and ‘full can’ tests do not selectively activate supraspinatus. J Sci Med Sport (2008), doi:10.1016/j.jsams.2008.09.005
