Questions: QUESTION 1 To avoid back pain, it is important to have strong abdominal muscles QUESTION 2 An important biomechanical principle to remember when lifting objects keep your core muscles firm when lifting

QUESTION 1 To avoid back pain, it is important to have strong abdominal muscles QUESTION 2 An important biomechanical principle to remember when lifting objects keep your core muscles firm when lifting
Transcript text: QUESTION 1 To avoid back pain, it is important to have strong abdominal muscles QUESTION 2 An important biomechanical principle to remember when lifting objects keep your core muscles firm when lifting
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Solution

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Question 1:

The answer is the second one: strong abdominal muscles.

Explanation:

  • Short back muscles: Short back muscles can contribute to back pain rather than prevent it. Flexibility and strength are important for back health.
  • Strong abdominal muscles: Strong abdominal muscles help support the spine and maintain proper posture, reducing the risk of back pain.
  • Short hamstring muscles: Short hamstring muscles can lead to poor posture and increased strain on the lower back, potentially causing pain.
  • Strong hip flexor muscles: While strong hip flexors are important for overall mobility, they are not directly linked to preventing back pain as much as strong abdominal muscles are.

Question 2:

The answer is the second one: keep your core muscles firm when lifting.

Explanation:

  • Bend at the waist when lifting: Bending at the waist can increase the risk of back injury. It is better to bend at the knees and hips.
  • Keep your core muscles firm when lifting: Engaging your core muscles provides stability and support to the spine, reducing the risk of injury.
  • Hold your breath when lifting: Holding your breath can increase intra-abdominal pressure and is not recommended. Breathing steadily is important.
  • Use a narrow base of support when lifting: A narrow base of support is less stable. A wider base provides better balance and stability when lifting.

In summary, for Question 1, strong abdominal muscles are crucial for preventing back pain, and for Question 2, keeping your core muscles firm is an important biomechanical principle when lifting objects.

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