https://www.ovid.com/jnls/acsm-msse/fulltext/10.1249/01.mss.0001266536.80718.c7~difference-of-fitness-level-changes-by-age-group-after
Difference Of Fitness Level Changes By Age Group After Rehabilitation Exercise Program Among Stroke Patients
Dae Gyun Jeong, Heeju Kim, Jaehak Kim, Dae Taek Lee
(정대균, 김희주, 김재학, 이대택)