Transcript Corrective Strategies for Foot and Ankle Impairments
Chapter 13 Corrective Strategies for Knee Impairments
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Purpose
To provide the health and fitness professional with the knowledge and skills to effectively develop and implement corrective exercise strategies for knee impairments.
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Objectives
• • • • Understand the basic functional anatomy of the knee complex.
Understand the mechanisms for common knee injuries.
Determine the common risk factors that can lead to knee injuries.
Incorporate a systematic assessment and corrective exercise strategy for knee impairments.
Functional Anatomy Knee Injuries Risk Factors Systematic Assessment & Corrective Exercise Strategy
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Introduction
The knee is a region that is greatly affected and influenced by joints above and below it.
The structures that help form the ankle, and hip joints also make up the knee joint.
Over time, this will increase stress and injury risk, ultimately leading to knee impairments.
It is important to understand the: • anatomy • • causes exercise strategies for prevention and management Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Functional Anatomy: Bones and Joints
The tibia and femur make up the tibiofemoral joint, and the patella and femur make up the patellofemoral joint. The fibula is also noted as it is the attachment site of the biceps femoris which crosses and affects the knee.
Tibiofemoral Joint Femur Patellofemoral Joint
Biceps Femoris
Fibula Tibia Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Functional Anatomy: Bones and Joints (cont.)
Pelvis (Ilium) Iliofemoral Joint Sacroiliac Joint Sacrum Collectively, these structures anchor the proximal myofascial tissues.
Femur Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Functional Anatomy: Bones and Joints (cont.)
Fibula Tibia Collectively, these structures anchor the distal myofascial tissues of the knee.
Talocrural Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Functional Anatomy: Muscles
Gastrocnemius Soleus Adductor Complex Hamstrings
It is important to restore and maintain normal range of motion and strength, and eliminate any muscle inhibition, to ensure joints are operating optimally.
TFL/IT-Band Quadriceps Gluteus Medius Gluteus Maximus
Muscle imbalances may result in altered force-couple relationships which will lead to altered joint arthrokinematics, increased stresses to the knee, and potential injury. Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Common Knee Injuries and Associated Movement Deficiencies
Iliotibial Band (IT-Band) Syndrome (Runner’s Knee) Patellar Tendinopathy (Jumper’s Knee) Anterior Cruciate Ligament (ACL) Injury Patellofemoral Syndrome
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Systematic Process to Determine Knee Impairments
Identifying faulty movement patterns allows the health and fitness professional to predict possible range of motion restrictions and muscle weakness.
Assessment Static Posture Overhead Squat Single-Leg Squat Tuck Jump Assessment Observation
Pronation distortion syndrome (tibial and femoral adduction and internal rotation) Knees move inward (adduct and internally rotate) Knees move outward (abduct and externally rotate) Knee moves inward (adduct and internally rotate) Knee and thigh deficits (i.e. excessive knee valgus on landing) Foot placement deficits and poor landing technique Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Varus Valgus
Corrective Exercise Strategies for Knee Impairments
Inhibit Inhibitory Techniques Lengthen Lengthening Techniques Activate Activation Techniques Integrate Integration Techniques
Self-Myofascial Release Static Stretching Isolated Strengthening Integrated Dynamic Movement Once muscle weakness and range of motion deficiencies have been identified, the corrective exercise strategy can be developed utilizing NASM’s Corrective Exercise Continuum. Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 1. Inhibit (Knees Move Inward)
Compensation
Knees Move Inward
Phase
Inhibit
Modality
Self-Myofascial Release • • • •
Muscle(s) Exercise
Lateral Gastrocnemius Adductors TFL/IT Band Biceps Femoris (short head)
Acute Variables
Hold on tender area for 30 sec.
Lateral Gastrocnemius Adductors TFL/IT Band Biceps Femoris
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 2. Lengthen (Knees Move Inward)
Compensation Phase Modality
Knees Move Inward Lengthen Static Stretching
Muscle(s) Exercise Acute Variables
• • • • Lateral Gastrocnemius Adductors TFL Biceps Femoris (short head) Hold stretch for 30 sec.
Lateral Gastrocnemius Adductors TFL Biceps Femoris
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 3. Activate (Knees Move Inward)
Compensation
Knees Move Inward
Phase
Activate
Modality
Isolated Strengthening • • • •
Muscle(s) Exercise
Anterior Tibialis Posterior Tibialis Gluteus Medius Gluteus Maximus
Acute Variables
10-15 repetitions with 2 sec. isometric hold and 4 sec. eccentric contraction
Anterior Tibialis Posterior Tibialis Gluteus Medius Gluteus Maximus
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 4. Integrate (Knees Move Inward)
Phase
Integrate
Modality
Integrated Dynamic Movement • • • • • •
Exercise
Wall Jumps Tuck Jumps Long Jumps (Two Feet) 180 ○ Jumps Single-Leg Hops Cutting Maneuvers
Acute Variables
10-15 repetitions under control
Wall Jumps Tuck Jumps Long Jumps 180
○
Jumps Single-Leg Hops
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Cutting Maneuvers
Step 1. Inhibit (Knees Move Outward)
Compensation Phase
Knees Move Outward Inhibit
Modality
Self-Myofascial Release
Muscle(s) Exercise
• • • Piriformis TFL Biceps Femoris
Acute Variables
Hold on tender area for 30 sec.
Piriformis TFL Biceps Femoris
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 2. Lengthen (Knees Move Outward)
Compensation
Knees Move Outward
Phase Modality Muscle(s) Exercise
Lengthen Static Stretching • • • Piriformis TFL Biceps Femoris
Acute Variables
Hold on tender area for 30 sec.
Piriformis TFL Biceps Femoris
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Step 3. Activate (Knees Move Outward)
Compensation Phase Modality Muscle(s) Exercise Acute Variables
Knees Move Outward Activate Isolated Strengthening • • • Adductors Medial Hamstrings Gluteus Maximus 10-15 repetitions with 2 sec. isometric hold and 4 sec. eccentric contraction
Adductors Medial Hamstrings Gluteus Maximus
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Integrate (Knees Move Outward)
Phase
Integrate
Modality
Integrated Dynamic Movement • • • • • •
Exercise
Jumping Progression Functional Movement Progression Ball Squats with Overhead Press Step-Ups with Overhead Press Lunges with Overhead Press Single-Leg Squat with Overhead Press
Acute Variables
10-15 repetitions under control
Ball Squats with Overhead Press Step-Ups with Overhead Press Lunges with Overhead Press Single-Leg Squats with Overhead Press
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins
Summary
It is important for health and fitness professionals to utilize an integrated assessment process in order to gather the appropriate information needed to develop a specific and systematic corrective exercise strategy.
Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins