Presentation on theme: "Kinesiology Laboratory 8"— Presentation transcript:
1Kinesiology Laboratory 8 Posture and Gait Analysis
2Lateral Plumb LineStand so that the line is slightly anterior to lateral malleoli
3Anterior/Posterior Plumb Line *Plumb line should be equidistant from both feet
4Normal Vertical Plumb Line Analysis *** Plumb line should be slightly posterior to the center of the hip joint and only slightly anterior to the knee and ankle joint.
5Normal Spinal Curvature Posterior concave curves are termed LordosisPosterior convex curves are termed KyphosisFlattening or increases in curvature beyond baseline are postural abnormalities that lead to increase stress on joints and surrounding structures.
13RLA vs Traditional Terminology STANCEHeel StrikeInitial ContactFlat FootLoading ResponseMid-StanceHeel-OffTerminal StancePush-OffToe-OffPre-SwingSWINGAccelerationInitial SwingMid SwingDecelerationTerminal Swing
14Heel Strike Ankle: Neutral (isometric contraction of dorsiflexors) Knee: Slight Flexion (eccentric of knee extensors)Hip: 30 degrees Flexion (isometric of hip extensors)Trunk: Rotated to Opposite Side (isometric of erector spinae group)Body weight shifts to stance leg
15Flat FootAnkle: 5-10 degrees of Plantar Flexion (eccentric dorsiflexors)Knee: 15 degrees of Flexion (eccentric quadriceps)Hip: Moving into Extension (isometric extensors)Body weight continues to shift stance foot
16Mid-Stance Ankle: Dorsiflexion (eccentric plantarflexors) Knee: Extension (no contraction)Hip: Extension (concentric extensors and abductors)Trunk: NeutralSingle limb support occursHighest level of horizontal displacement of center of gravity and vertical displacement of center of gravity
17Heel OffAnkle: initially dorsiflexion, moving into plantar flexion (for push off) (concentric plantar flexors)Knee: extension (eccentric quads)Hip: Hyperextension (isometric extensors, eccentric hip flexors)Trunk: Rotation to same side
18Toe Off Toes: Hyperextension Ankle: Plantar flexion appox degrees (concentric plantar flexors)Knee: Flexion to 30 degrees (eccentric quads)Hip: Moving into Flexion (concentric hip flexors)
22Gait AnalysisStep length is the distance between the point of initial contact of one foot and the point of initial contact of the opposite foot. In normal gait, right and left step lengths are similar.Stride length is the distance between successive points of initial contact of the same foot. Right and left stride lengths are normally equal.Cadence or walking rate is calculated in steps per minute.Walking base is the sum of the perpendicular distances from the points of initial contact of the right and left feet to the line of forward progression.Foot angle or toe out describes an angle between the line of progression and a line drawn between the midpoints of the calcaneus and the second metatarsal head.
23Trendelenburg Sign Vs Trendelenburg Gait &feature=endscreen
24In Two Weeks Final Lab Practical Principles Active and Passive InsufficiencyLength-TensionVelocity TensionForce CouplesLeversActivity AnalysisSquatBaseball Swing (Leading Arm)Push upSit upBench PressMilitary PressExercise PrescriptionLower Extremities