84 PHYSICAL TRAINING 



because spirometers are not generally possessed 

 by schools. 



Stand erect, with heels together, shoulders 

 squared. Raise the arms straight overhead, take 

 as large a breath as possible; then, holding the 

 breath, lower the arms till they are at rest; then 

 exhale. Remember that the breath is to be held 

 until the arms are hanging down by the sides. 

 This exercise, done a dozen times in the morning, 

 in good clean air, will make a marked improve- 

 ment with an under-developed chest. Bringing 

 the arms down makes a slight pressure which 

 forces the air to all parts of the lungs. 



The common exercise in which the air is ex- 

 haled as the arms are brought down will do 

 for children who have a normal chest develop- 

 ment. 



Exercise No. 2. This is done while the child is 

 walking. Breathing exercises in the usual class- 

 room with the usual stale air cannot be of great 

 benefit. So this exercise can be done in the 

 school yard, or, in individual work, while the 

 child is walking at any time outdoors. At each 

 step take in a little breath, so that by the time 

 five steps have been taken the chest is filled to 

 its capacity. Hold for several steps, exhale, and 

 begin again. Continue three or four minutes. 



This, with No. 1, will aid in rapidly bringing up 

 an under-developed chest. 



