- long head: infraglenoid tubercle of scapula to olecranon process. functions in joint stability (shunt muscle) - medial head: dorsal surface of humerus to olecranon process.most active of the head in all three positions.- lateral head: dorsal surface of humerus to olecranon process.Strongest, but only active against resistance.unctions in joint stability (shunt muscle) - medial head: dorsal surface of humerus to olecranon process. most active of the head in all three positions. - lateral head: dorsal surface of humerus to olecranon process. Strongest, but only active against resistance.
The ES 500 is a great little backup unit. Easy to use, long battery life (about 25 min. with a desktop PC plugged in; 2 hrs. with a notebook PC plugged into it). It includes full surge protector capabilities, so you won't need to buy another one of those.
(Later, you can alternatively plug it in your PC or Mac and use the Microsoft Band sync app for Windows (desktop) or Mac, and sync Band data while charging.). Microsoft claims that Band gets up to 48 hours of battery life, but in my experience with the default settings, real-world battery life is closer to 32-36 hours.So my advice is to charge Band every day if possible. Indeed, the more often you charge Band, the less you'll need to charge it each time.icrosoft claims that Band gets up to 48 hours of battery life, but in my experience with the default settings, real-world battery life is closer to 32-36 hours.