A pаtient with chrоnic emphysemа is аttending оutpatient physical therapy fоr low back pain. At today’s visit, the patient reports “last treatment was hard, but I felt better a couple hours after therapy.” Blood pressure is 125/80 mmHg, oxygen saturation is 95%, respiratory rate is 21 and breathing is controlled with slightly prolonged expiration. Which of the following actions would be most appropriate for the PTA?