Pitching velocity is a crucial factor in effective baseball pitching performance. Upper-body-focused training is prevalent in baseball training to increase pitching velocity. However, significant pitchers, including youth league baseball players, suffer from upper body injuries due to the heavy training load of the throwing arm. This article…

This definition of flexibility and muscular strength also explores their roles in overall physical fitness and focuses on how increased flexibility and muscular strength can help decrease or eliminate lower back pain. (CB)

An introduction to terms and concepts associated with resistance training is given. Sports associated with this training, such as power lifting and body building, are described. The merits of free weights versus resistance machines are discussed. The article recommends a training program for beginners. (Author/JL)

One of every six children in the United States is so weak, uncoordinated, or generally inept that he or she is physically underdeveloped by the standards of the President's Council on Physical Fitness and Sports. This booklet outlines diagnostic tests that can identify physical difficulties or shortcomings in children between the ages of 9 to 17…

The shaping of human motor development is demonstrated by the orderly sequence of events which occur throughout the individual's development process. Muscular strength and proficiency in gross motor skills improve with advancing chronological age throughout childhood and adolescence, with sex differences in performance tending to favor males. (JN)