Trunk position and impact:
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- This runner has an upright trunk
- Level pelvis
- Centre of gravity is well behind the contact point of the leading
foot
- This allow progressive loading of the leading leg
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- With a trunk leaning forwards
- The centre of gravity is almost directly over the foot as it lands
- The loading on the foot, ankle, knee, pelvis rises steeply
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What to watch for:
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- Leaning forwards and droping the head transfers the weight onto
the front foot early
- This increases the rate at which the impact loads rise in the whole
limb
- The result may the overload of tissues in the foot, shin, knee,
hip and back
- Learning to maintain an upright trunk by adjusting the shoulder
and head position is fundamental to efficient running technique
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