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Data presented under the loading or landing strategy will indicate if the hip or knee initiated movement. Typically, the hip is considered the more desirable strategy
Data presented under the loading or landing strategy will indicate if the hip or knee initiated movement. Typically, the hip is considered the more desirable strategy
Lower Body - Dynamic and Static Tasks
Lower Body - Performance Tasks
Data Points:
Data Points:
Loading Strategy:
- Data presented under loading strategy will indicate if the hip or the knee initiated movement
- It is calculated by taking 5% of the total excursion of the hip and knee joints and determining which crossed 5% of their total range first.
- Trunk Flexion: The trunk is defined as a line from the sacrum to base of the neck. Trunk flexion is determined by the angle between trunk in the sagittal plane (forward) and vertical when the subject's COM is at their lowest point.
- Shin Flexion: The angle of the tibia relative to the foot in the sagittal plane (forward) when the subject's COM is at their lowest point.
Landing Strategy:
- Data presented under landing strategy will indicate if the hip or the knee initiated movement during the landing phase of the jump (from foot contact to when the center of mass reaches its lowest point).
- It is calculated by taking 5% of the total excursion of the hip and knee joints during the landing phase and determining which crossed 5% of their total range first
Visual References:
Visual References:
Unilateral Squat - Shin Angle vs. Trunk Angle
- Teaching proper trunk and shin alignment during dynamic movements such as the single leg squat may help the patient effectively use both the posterior chain and the quads.
Elevated Trunk to Shin:
Elevated Shin to Trunk:
Aligned:
Bodyweight Squat -Knee Strategy vs. Hip Strategy
- Teaching the patient to properly load into the hips can cultivate a sound movement foundation.
Knee Strategy:
Hip Strategy:
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