Download
1 / 7
80 likes | 223 Vues
This overview explores the fundamental principles of muscular strength and endurance: overload, progression, and specificity. Overload emphasizes the need to push muscles beyond their normal limits to enhance fitness, while progression requires a gradual increase in workload. Specificity dictates that targeted exercises are vital for improving desired fitness components. Additionally, we differentiate muscular strength—the maximum force exerted in a single effort—from muscular endurance, which is the ability to sustain repetitive movement over time. Understanding muscle fibers (slow-twitch, intermediate, and fast) and different types of strength exercises (isotonic, isometric, isokinetic) is essential for effective training.
E N D
Three basic principles physical activity • Overload • Stimulating the muscle/making it work harder than normal in order to improve fitness • Progression • The workload must be progressively increased for movement/muscle increase to occur • Specificity • Must do specific types of exercises to improve specific components of fitness he/she wants to improve
Difference • Muscular Strength • Amount of force a muscle can exert in a single effort • Muscular Endurance • The ability to repeat muscle movement over a period of time
Muscle Fibers • DEF- muscle cells which are long and cylinder-shape • *with regular weight training can increase in size but NOT in number* • Types • Slow-twitch- muscle fibers that contract at a slow rate, but have great endurance • Intermediate- combination of fast and slow • Fast- contract at a fast rate, have great strength, but little endurance
Different types of strength exercises • Isotonic • Muscles contract (lengthen/shorten) while lowering and raising a resistance • Isometric • Muscles contract, but they do not move • Isokinetic • Providing maximal resistance throughout a complete range of motion at a constant speed
