Part one: biomechanical symptoms - lower body.

第一部：生物力學症狀-下半身。

Do you recognize this sitting position?

你是否對這種坐姿很熟戲？

Do you sit most hours of the day?

你大部分時間都坐著嗎？

Do you feel discomfort or pain in your upper or lower back?

你的上背或下背是否感到不適或疼痛？

What happens to your body when you slump in your chair for too long?

當你長時間在椅子駝背時，你的身體會發生什麼變化？

Prolonged sitting in this position will in time cause rigidity and tightness in the tight muscles, and we can see them colored in blue.

長時間保持這種姿勢將會使大腿肌肉變得僵硬和緊繃，我們可以看到它們呈藍色。

And these are chronically short muscles, what we call locked short.

這些肌肉長時間處於緊張狀態，我們稱之為「長時間收縮」。

In addition to the posterior leg muscles, the hip flexors are also chronically short from prolonged sitting.

除了大腿背部肌肉，長時間坐著還會使髖部屈肌長時間處於緊縮狀態。

Rigidity in the hip flexor is a direct cause of weakness in the antagonist hip extenders.

髖部屈肌僵硬是招致對立的髖部伸肌虛弱的直接原因。

Muscle imbalance.

肌肉失衡。

Muscle imbalances are the number one cause of lower back pain.

肌肉失衡是導致下背疼痛的頭號原因。

What happens to the sacroiliac joint?

骶髂關節會發生什麼變化？

The joint between the sacrum and the pelvic bones.

骶骨和骶骨與骨盆骨之間的關節。

The sacroiliac joint and the sacroiliac ligaments are under load.

骶髂關節和骶髂韌帶承受著壓力。

What happens to the lumbar spine?

腰椎會發生什麼變化？

Here, we can see a neutral spine and lumbar flexion.

在這裡，我們可以看到一個中立的脊椎和腰椎屈曲。

In prolonged slumped posture, the lumbar spine is flexed over time.

在長時間的駝背坐姿中，腰椎會隨著時間而屈曲。

Damage includes increase in posterior analyst strain, damage to the analyst of the disc, increase in intradiscal pressure.

損害包括後擴肌的應變增加，損害椎間盤的椎間椎，增加椎間盤內壓力。

What happens to the connective tissues?

連接組織會發生什麼變化？

Flexed postures place stress on the posterior passive tissues.

駝背的姿勢對後被動組織造成壓力。

In addition, the posterior ligaments are also impaired.

此外，後韌帶也會受損。

In the second part of the video, we'll learn the biomechanical symptoms in the upper body.

在影片的第二部分，我們將學習上半身的生物機械症狀。