Midterm2Notes

Midterm2Notes - Continuedfromlasttime: 10March2009 Muscle...

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Continued from last time:  10 March 2009 Muscle Endurance, Strength, Power, and Flexibility o Cardiorespiratory endurance : ability of body to transport and use oxygen o Muscular endurance : ability of muscle group to execute repeated contractions over a period of time. Sufficient to cause muscular fatigue Local muscular endurance (down to the actual muscle group) o Difference between CR and muscular? Out running: CR endurance Gym w/reps for quads: muscular endurance Muscular endurance will eventually aid CR endurance because it helps decrease the risk of injury Is why resistance training can be beneficial to a runner o Muscular strength : external force that can be generated by a specific muscle or muscle group 3/10/09: Training for Muscular Endurance cont… The predominant energy pathways are relative to the type of performance/duration of event o ATP: Strength-Power o ATP + PCr: Sustained Power o ATP + PCr + Lactic Acid: Anaerobic Power-Endurance o ETC + Oxidative Phosphorylation: Aerobic Endurance Principles of Training o Overload with regards to training intensity and volume (duration and frequency) i. For a training adaptation to occur: 1. Physiological system must be exercised at a level beyond that to which it is presently accustomed to in order to see adaptations o Progression i. Gradual ii. Discontinuous o Periodization i. Cyclic training according to competition (ex: racing/meeting a goal) o Specificity i. Refers to the distinct adaptations to physiological systems that arise from the training program. ii. Event/skill driven
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1. Ex: if training for long distances, you practice long distances o Reversibility i. Lose your training adaptations ("You snooze, you lose") ii. VO2 max can decrease up to 25% within 20 days of bed rest Research hurdles o Lack of money o Stubborn athletes i. Most studies are performed on untrained individuals ii. Some trained athletes don't want to follow the study guidelines o Unskilled volunteers i. Start out without ANY training and get a 10-15% increase after their first 1RM o Functional application differences i. Ex: hard to compare rats to humans with certain things 1. Have to electrically stimulate rats at their knees to get them to do squats, when humans will do squats on their own 2. However, rats CAN be used to see differences in their CSA/metabolic pathways Physiological Responses to Aerobic Exercise
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Midterm2Notes - Continuedfromlasttime: 10March2009 Muscle...

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