This article is a great example of the importance of physical activity. It points out the social and psychological effects of staying active and the importance of choosing the correct or most accurate form of testing. Because many of the participants had progressive disorders, a quantitative method of testing would not be able to show an increase in progress. This would make sense because the participant may be slowly becoming weaker. Many of the participants were able to voice their opinions of the class and give an "insider" perspective. This allowed the results to show other important aspects and benefits of physical activity that may not be visible from the "outsider" perspective. The questionnaire enabled the study to determine other benefits of exercise, such as increased self-esteem, independence, and acceptance of their disabilities. The study demonstrates the importance of using different methods of testing for different studies and also illustrates the positive results of physical activity in group settings for people with disabilities.