今天的吉他基礎教程 ，來給大家說說彈吉他時肌肉高效率運動的四個原則，可能有點抽象，不過相信難不倒大家!

　　彈吉他時肌肉高效率運動的四個原則

　　肌肉的對準：

　　只有當肌肉自然地與其根基和關節對準時，肌肉的活動效率達到最佳。自然的對準使得控制你背部、腕部和手指關節的肌肉得到最直接的拉動和收縮。

　　關節的中度活動：

　　只有當肌肉所控制的關節在適中運動范圍之內運作時，肌肉的活動效率達到最佳。(關節)中度的位置和運動使得相關肌肉達到最佳的力度優勢。

　　統一的關節運動方向：

　　只有手指的三個關節一起進行伸展或收縮時，肌肉的活動效率達到最佳。相比較收縮一個關節而伸展另一個關節而言，同時的伸展或收縮使肌肉的協調得以簡化了。

　　慣性動作：

　　只有當手指和肌肉運動有充分的慣性動作從而避免產生累積而成的反效率的緊張時，肌肉的活動效率達到最佳。充分的慣性動作意味著，一旦動作已經開始，就不要刻意地去制止動作。

　　原文：

　　Four Principles of Muscle Function(Aeron Shearer: Learning the classic guitar Part I, Mel Bay, 1990 )

　　Muscular Alignment:

　　Muscles function most efficiently only when naturally aligned with their base and joint attachments. Natural alignment provides the most direct pull of the muscles that control your back, wrist, and finger joints.

　　Midrange function of Joints:

　　Muscles function most efficiently only when the joints they control are operated within their midrange of movement. Midrange positioning and movement provides optimum leverage to the muscles involved.

　　Uniform Direction of Joint Movement:

　　Muscles function most efficiently only when three joints of a finger or the thumb are either flexed or extended together. In contrast to flexing one joint while extending another, simultaneous extension or flexion simplifies coordination of the muscles.

　　Follow-through:

　　Muscles function most efficiently only when there is sufficient follow-through to avoid a build-up counterproductive tension. Sufficient follow-through means that, once a movement has been initiated, no intentional restraint is applied to the movement.