Strength as prophylaxis Lack of minimal muscular strength may lead to certain chronic illnesses. "Lack of sufficient muscular activity not only means insufficient emotional release, but at the same time it decreases muscular strength." Muscle disuse is a predisposing factor to general and local tension. It was reported that approximately 80 per cent of the patients, after thorough examination by a team of specialists, were found to be free from organic disease; when treated with systematic exercise, they improved as their strength and flexibility increased. In follow-up studies, it was found that these patients lost ground as their physical activities were reduced or given up. The activity that follows burns up the secretion, and thus the body is allowed to relax or function in a normal manner. The stimulation to the adrenal may also be caused by anxiety and worry. Without physical activity as a release, the hormone leaves the body tense and keyed up. This has been suggested as one of the causes for the increasing number of emotional disturbances in our population. Increased mechanization, spectator activities, and lack of interest in fitness present a tremendous challenge to the physical educator for developing fitness and teaching youngsters the values of maintaining physical fitness. Muscular efficiency Physiologically, a muscle working near its maximum capacity works with less efficiency than does a muscle sufficiently strengthened to perform the task. For example, if one were putting the shot, the primary muscles involved would work much more efficiently if they possessed more than the minimal amount of strength necessary to Perform the activity. The application of this principle prevails in any activity requiring strength. Thus a muscle group working near its maximum capacity may easily become chronically fatigued, resulting in lowered vitality of the body and less proficiency in execution of skills. In addition, this is a contributing factor to accident proneness.		Home Components of Physical Fitness Clinical Examination Differences Between Fit and Unfit Men Physiological Elements of Fitness The Step Test The Effects of Training on the Physiological Systems Work Output Physical Condition of Muscle Application of Muscular Force Maintaining Optimum Strength Tests of Muscular Strength Strength and appearance Strength as a measure of physical fitness Strength as affected by organic problems Strength as prophylaxis Role of inactivity in production of disease Lack of Sociability in Work Lactic Acid System Muscular Form Capillary Growth Heart Size Heart Rate Training produces physicochemical changes Muscular Strength Nervous Stimulation and Muscular Strength Quality of Champions Factors Which Limit Skill Blood Supply Kinesthesis Balance Reaction Time Skill Muscular Tension Visual Aim Skill Center in the Brain Endurance for Exhaustive and Moderate Work Distribution of Energy