Ther ex 2
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What issues may result in poor exercise adherence?
- Poor or limited leadership
- Inconvenient time
- Boredom with exercise
- Poor individual commitment
- Unaware of any progress made
- Poor family support
What factors may result in good exercise adherence?
- Effective leadership
- Positive reinforcement
- Part of regular routine
- No injury
- Social support from group
- Regular updates on progress
- Family approval
What are the 5 precautions to resistance exercise?
- Valsalva maneuver
- Substitution pattern
- Overtraining and/or overworking
- Exercise-induced muscle soreness
- Pathological fracture
What are the contraindications for resistance exercise? (3)
- Pain *(usually 4 or 5)
- Acute or uncontrolled inflammation
- Severe cardiopulmonary disease
What factos affect the tension generation of a muscle?
- •Cross-section and size of muscle
- •Fiber arrangement and fiber length
- •Fiber-type distribution
- •Length-tension relationship
- •Recruitment and firing of motor units
- •Type of muscle contraction
- –Force output (highest to lowest) eccentric, isometric, concentric
- •Speed of muscle contraction
- –Concentric = increased speed, decreased tension
- –Eccentric =increased speed, increased tension
What are s/s of fatigue?
- Uncomfortable sensation, pain, cramping
- “jerky” movements or inability to perform full ROM
- Use of substitution motions
- Decline in peak torque during isokinetic testing
What are the physiological adaptations to resistance training?
- Skeletal muscle structure–Hypertrophy, increased capillary bed density, increased mitochondrial density
- Neural System–Increased motor unit recruitment, rate of firing, and synchronization of firing
- Metabolic–Increased stored ATP and CP
- Body Composition
- Connective tissue–Increased tensile strength , increased bone density
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