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Muscle Hypertrophy.Muscle Hypertrophy.Muscle Hypertrophy.Muscle Hypertrophy.
- 2. Hypertrophy is the increase in the CSA and muscle mass Hyperplasia in the nb of fibers (on steroids) Types of Hypertrophy: 1.Transient (Fluid accumulation) 2.Sarcoplasmic (Non-Functional) 3.Myofibrillar (Functional) Think of Bodybuilder vs Athlete Recall Sliding Filament Theory, Type of Fibers.
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- 11. Acute Adaptations to Resistance Training: 1.Neural Adaptations: ⚬ Increased Motor Unit Recruitment: During resistance training sessions, there's an acute increase in the recruitment of motor units, leading to enhanced force production. ⚬ Improved Motor Unit Synchronization: Synchronization of firing patterns among motor units improves, enhancing coordination and efficiency of muscle contractions. ⚬ Reduced Neural Inhibition: Resistance training decreases neural inhibition, allowing for greater activation of muscle fibers and improved force generation. 2.Metabolic Responses: ⚬ Increased Energy Demand: Resistance training induces a temporary increase in energy demand to fuel muscle contractions, leading to elevated metabolic rate during and after workouts. ⚬ Lactate Accumulation: Intense resistance training can result in the accumulation of lactate, contributing to metabolic stress and signaling pathways involved in muscle growth. 3.Mechanical Stress: ⚬ Muscle Damage: Eccentric muscle actions and high-force contractions can cause microscopic muscle damage, triggering an inflammatory response and the subsequent repair and growth of muscle tissue. ⚬ Cell Swelling: Resistance training leads to intracellular fluid accumulation and cell swelling, stimulating anabolic pathways and promoting muscle hypertrophy.
- 12. Chronic Adaptations to Resistance Training: 1.Muscle Hypertrophy: ⚬ Increased Muscle Fiber Size: Over time, resistance training induces muscle hypertrophy, characterized by an increase in the cross-sectional area of muscle fibers, particularly Type II fibers. ⚬ Protein Synthesis: Chronic resistance training upregulates protein synthesis pathways, leading to the accretion of contractile proteins and structural components within muscle fibers. 2.Strength Gains: ⚬ Neuromuscular Adaptations: Continued resistance training results in neural adaptations, including enhanced motor unit recruitment, synchronization, and reduced neural inhibition, contributing to improvements in strength and power. ⚬ Structural Changes: Muscle hypertrophy and changes in muscle architecture, such as increased pennation angle, contribute to greater force production capacity. 3.Metabolic Improvements: ⚬ Increased Metabolic Efficiency: Chronic resistance training enhances metabolic efficiency, leading to improved energy utilization, substrate oxidation, and glucose metabolism. ⚬ Muscle Glycogen Storage: Regular resistance training increases muscle glycogen storage capacity, improving endurance and performance during high-intensity exercise. 4.Connective Tissue Adaptations: ⚬ Tendon and Ligament Strength: Resistance training promotes the remodeling and strengthening of tendons and ligaments, enhancing joint stability and reducing the risk of injury. ⚬ Bone Density: Resistance training induces mechanical loading on bones, stimulating bone remodeling and increasing bone mineral density, reducing the risk of osteoporosis. 5.Functional Adaptations: ⚬ Movement Efficiency: Regular resistance training improves movement patterns, joint stability, and coordination, enhancing overall functional capacity and performance in daily activities and sports.
- 16. RT PROGRAMMING