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Kinesiology Laboratory 2: Muscle Mechanics . Length Tension Relationships, Velocity Tension Relationships, Active and Passive Insufficiency. Today’s Activities. Grip Strength Analysis Biodex Data Analysis Knee Extension with Goniometers Knee Flexion with Goniometers
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Kinesiology Laboratory 2: Muscle Mechanics Length Tension Relationships, Velocity Tension Relationships, Active and Passive Insufficiency
Today’s Activities • Grip Strength Analysis • Biodex Data Analysis • Knee Extension with Goniometers • Knee Flexion with Goniometers • Exercise Analysis- Upper Extremity (Presentations- Next Week)
Active Insufficiency • When a two-joint muscle is restrained in contraction. • The agonist muscle is slackened to the point where it has lost its ability to generate maximum tension.
Passive Insufficiency • When a two-joint muscle is constrained in elongation. • This occurs when the antagonist muscle cannot be elongated any farther and the full ROM cannot be achieved.
Grip Strength Dynamometer Graph Results: Force on y-axis, Grip number on x-axis What principles are present?
Biodex Machine Creates a concentric contraction of both the Quads (Flexion) and Hamstrings (Extension)= Isokinetic Exercise
Biodex Data Graph data for Results section. What principle is being demonstrated?
Knee Extension and Hip Flexion Using a Goniometer • Using the Goniometer • Align the goniometer with the joint being tested. • Have the arms pointing toward the moving limb • Complete movement • Align second goniometer arm with limb • Read the degrees of movement • Make note of subjective feelings • Make a table of your results for the lab report • Use figures for each activity • What principle is being shown in activity 3? • What principle is being shown in activity 4?
Presentation Assignments • Group 1: Shoulder Flexors and Shoulder Extensors • Group 2: Shoulder Abductors and Shoulder Internal and External Rotators • Group 3: Elbow Extensors and Wrist Flexors and Extensors • Group 4: Elbow Flexors and Forearm Supinators and Pronators
Presentation Requirements • 3 Different Exercise for Each Muscle Group • There must be one gravity eliminated and one gravity resistive exercise per muscle group (Think about the way the body is positioned) • Utilize a variety of equipment (Therabands, dumbbells, benches, etc.) • Present exercises in order of difficulty • Identify the type of muscle contraction (Eccentric or Concentric) • Notes may be used during presentation
For Next Week • Lab Report 2 • Presentations • Readings: H&K: Ch5 cont’d, TG: pp 108-112, 127-148 (not palpation)