An elementary physiology and hygiene for use in upper grammar grades . Fig. 105. above the head. Bend forward from the waist untilthe body takes almost the position of an inverted V,as in Figure 105. Exercise 19—Stand with handson hips. Take a long step forward,bearing the weight on the forwardfoot (see Fig. 106). Back to posi-tion. Kepeat with the other footforward. $/ JJ I FOR THE LEGS Exercise 20.—For strengtheningthe leg below the knee and de-veloping the calf, stand erect, andrise and sink slowly on toes and heels a great manytimes (see Fig. 107). Exercise 21.—Stand on one foot and raise
An elementary physiology and hygiene for use in upper grammar grades . Fig. 105. above the head. Bend forward from the waist untilthe body takes almost the position of an inverted V,as in Figure 105. Exercise 19—Stand with handson hips. Take a long step forward,bearing the weight on the forwardfoot (see Fig. 106). Back to posi-tion. Kepeat with the other footforward. $/ JJ I FOR THE LEGS Exercise 20.—For strengtheningthe leg below the knee and de-veloping the calf, stand erect, andrise and sink slowly on toes and heels a great manytimes (see Fig. 107). Exercise 21.—Stand on one foot and raise the otherleg, bending the knee (see Fig. 108). Bend andstraighten several Eepeat with the other leg. Exercise 22—An excellent exercise for the legs andbody muscles is to place onefoot forward as if rising on the toes, springlightly back and forth, alter-nating the position of thefeet. GAMES AND SPORTS The great value of gamesand sports, aside from the Fig. 330 PHYSIOLOGY AND HYGIENE pleasure we take in them and the muscular developmentthey give, is in the training of the senses and the learn to think quickly and to be alert in our move-ments. We also come to see how importantit is to be fair in our treatment of others. Since each game or sport trains only cer-tain sets of muscles, and requires its ownparticular kind of effort, it is well to befamiliar with a variety of such pastimes. Running is especially good for strengthen-ing the muscles of the legs; it also compelsus to breathe deeply. Jumping develops the legs and the ab-dominal muscles, and also the muscles ofthe shoulders and chest. Baseball combines all the good qualities ofthese two is perhaps the most val-uable sport of all, for it exercises agreat many different sets of strokes should be practiced, andalso swimming on the back. Everyboy and girl should know how toswim, not only because it is goodexercise, but so that in case of acci-dents,
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