1. CONSIDERATIONS ON THE PROPHYLAXIS OF SEVERE FORMS OF COVID-19 THROUGH ENDURANCE EXERCISES. Authors: BOGDAN-ALEXANDRU HAGIU.2. BIOMECHANICAL AND THERAPEUTIC IMPLICATIONS OF THE ANATOMICAL LOCATION OF TRIGGER POINTS. Authors: BOGDAN-ALEXANDRU HAGIU.3. ANATOMO-PHYLOGENETIC ARGUMENTS FOR THE PRODUCTION OF MUSCULAR SPORTS INJURIES. Authors: BOGDAN-ALEXANDRU HAGIU.4. THE ERECTOR SPINAE MUSCLE, A DETERMINING FACTOR IN THE PATHOLOGICAL BIOMECHANICS OF THE SPINE. Authors: BOGDAN-ALEXANDRU HAGIU.