Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Training for Performance Training Principles • Overload – Increased capacity in response to training overload • Specificity – Specific muscle involved – Energy systems that provide ATP • Reversibility – When training is stopped, the training effect is quickly lost Influence of Gender, Initial Fitness Level, and Genetics • Men and women respond similarly to training programs • Training improvement is always greater in individuals with lower initial fitness • Genetics plays an important role in how an individual responds to training Components of a Workout Session • Warm-up – Increases cardiac output, blood flow to skeletal muscle, and muscle temperature – Believed to reduce risk of injury • Workout • Cool-down – Return blood “pooled” in muscles to central circulation Training to Improve Aerobic Power • Three methods – Interval training – Long, slow distance – High-intensity, continuous exercise • Intensity appears to be the most important factor in improving VO2max Interval Training • Repeated exercise bouts – Separated by rest periods • Work interval – Intensity: 85-100% HRmax – Should last longer than 60 seconds to improve VO2max • Rest interval – Light activity such as walking – Should be as long as the work interval Long, Slow Distance • Low-intensity exercise – 57% VO2max or 70% HRmax • Duration greater than would be expected in competition • Based on the idea that training improvements are based on volume of training High-Intensity, Continuous Exercise • Appears to be the best method of increasing VO2max and lactate threshold • High-intensity exercise – 80-90% HRmax – At or slightly above lactate threshold • Duration of 25-50 min – Depending on individual fitness level Training Intensity and Improvement in VO2max Injuries in Endurance Training • Most injuries are a result of overtraining – Short-term, high-intensity exercise – Prolonged, low-intensity exercise • The “ten percent rule” for safely increasing training load – Intensity or duration should not be increased by more than 10% per week Training for Improved Anaerobic Power • ATP-PC system – Short (5-10 seconds), high-intensity work intervals – 30-60 second rest intervals • Glycolytic system – Short (20-60 seconds), high-intensity work intervals Training to Improve Muscular Strength • Strength-training exercises – Isometric or static – Dynamic or isotonic • Includes variable resistance exercise – Isokinetic • Increase in muscle size – Due to hypertrophy ( fiber diameter) – Due to hyperplasia? ( fiber number) Progressive Resistance Exercise • Improvements in strength via progressive overload – Periodically increasing resistance (weight lifted) to continue to overload the muscle • Basis for most weight-training programs Principles of Strength Training • Muscles must be exercised near peak tension for increases in strength • There is no “optimum” training program – 3-4 days per week with rest days in between is recommended • Strength training should involve the same muscles as competition – Movement pattern, speed of shortening Free Weights vs. Machines • Strength gains are similar following training using free weights and machines • Argument for free weights: – Data exist showing that free weights produce greater strength gains – Free weights produce greater movement variability and specificity – Free weights force control of balance and stabilization Combining Strength and Endurance Training • Combined strength and endurance training may result in lower gains in strength than strength training alone • Recommended that strength and endurance training be performed on alternate days for optimal strength gains Gender Differences in Response to Strength Training • Untrained males have greater absolute strength than untrained females – Strength related to cross-sectional area of muscle • There does not appear to be a gender differences in response to strength training Strength as a Function of Muscle Cross-Sectional Area Training-Induced Strength Changes in Men and Women Muscle Soreness • Delayed onset muscle soreness (DOMS) – Appears 24-48 hours after strenuous exercise – Due to microscopic tears in muscle fibers resulting in inflammatory response Training for Improved Flexibility • Static stretching – Continuously holding a stretch position – Preferred technique • Less chance of injury or soreness • Less muscle spindle activity – Proprioceptive neuromuscular facilitation (PNF) • Isometric contraction of muscle being stretched • Dynamic stretching – Ballistic stretching movements Year-Round Conditioning for Athletes • Off-season conditioning – – – – Prevent excessive weight (fat) gain Maintain muscular strength or endurance Maintain bone and ligament strength Maintain skill level • Preseason conditioning – Increase to maximum the energy systems used in particular sport • In-season conditioning – Maintenance of fitness level Year-Round Conditioning for Athletes Common Training Mistakes • • • • Overtraining Undertraining Performing non-specific exercises Failure to schedule a long-term training plan • Failure to taper before a performance Symptoms of Overtraining Tapering • Short-term reduction in training load prior to competition • Allows muscles to resynthesize glycogen and heal from training-induced damage • Improves performance in both strength and endurance events