Look inside the vent opening and clear out any debris you find. Turn the hose on to full power and lower it into the vent opening. The water will enter the main soil stack through the vent connection.
3 Open the drain valve. If the water runs freely, the valve works. If it doesn’t, it’s probably clogged. 4 If you suspect that the drain valve is clogged, you can try repeatedly stepping on the hose a couple of feet away from the tank to squirt water and air bubbles back into the tank. Hopefully this will break loose the clog.
How to open a can of food using a spoon. If you haven't got a can opener, you can use this life hack to cut your way into the can using a spoon.
My nephew can do it and refuses to show me how it's done. He can completely empty a can of its contents without opening the ringpull and there are no visible openings or holes anywhere on the can.
Jan 16, 2017.
Top Contributors - Rachael Lowe, Laura Ritchie, Tyler Shultz, Albert Alonso and Kim Jackson
Purpose
The Empty Can Test is used to assess the supraspinatus muscle and supraspinatus tendon.
Technique[1]
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.
Jobe/Empty Can Test video provided by Clinically Relevant
[2]
Evidence
Boettcher CE, et al.[3] 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.
Empty can test as sensitivities of 88.6% and specificities of 58.8% in diagnosing the supraspinatus tendon tear.[4]
References
↑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
↑Clinically Relevant. Jobe / Empty Can Test | Shoulder Impingement. Available from: https://members.physio-pedia.com/techniques/examination-techniques/?test=152
↑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
↑Ackmann T, Schneider KN, Schorn D, Rickert C, Gosheger G, Liem D. Comparison of efficacy of supraspinatus tendon tears diagnostic tests: a prospective study on the 'full-can,' the 'empty-can,' and the 'Whipple' tests [published online ahead of print, 2019 Nov 5]. Musculoskelet Surg. 2019;10.1007/s12306-019-00631-0. doi:10.1007/s12306-019-00631-0
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