diff --git a/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java
index 94d3e0a..1b36e20 100644
--- a/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java
+++ b/back_end/src/main/java/hackathon/FrisbYEE/jpa/service/ActiviteDAO.java
@@ -3,8 +3,11 @@ package hackathon.FrisbYEE.jpa.service;
 import hackathon.FrisbYEE.jpa.metier.Activite;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
+import java.util.List;
 
 @Repository
 public interface ActiviteDAO extends JpaRepository<Activite, Integer>  {
+
+    List<Activite> findByTheme(String theme);
     
 }
diff --git a/back_end/src/main/java/hackathon/FrisbYEE/rest/ActiviteResource.java b/back_end/src/main/java/hackathon/FrisbYEE/rest/ActiviteResource.java
index 271b4d7..83a7426 100644
--- a/back_end/src/main/java/hackathon/FrisbYEE/rest/ActiviteResource.java
+++ b/back_end/src/main/java/hackathon/FrisbYEE/rest/ActiviteResource.java
@@ -84,7 +84,8 @@ public class ActiviteResource {
 
     }
 
-    @GetMapping("/read/{id}")
+    @GetMapping("/{id}")
+    @PreAuthorize("hasRole('Coach') or hasRole('Athlete')")
     @ResponseBody
     public ResponseEntity<ActiviteDTO> getActivityById(@PathVariable("id") int id) {
         try {
@@ -104,6 +105,7 @@ public class ActiviteResource {
     }
 
     @GetMapping("/all")
+    @PreAuthorize("hasRole('Coach') or hasRole('Athlete')")
     @ResponseBody
     public ResponseEntity<List<ActiviteDTO>> getAllActivity() {
         try {
@@ -124,4 +126,28 @@ public class ActiviteResource {
         }
 
     }
+
+    @GetMapping("/theme/{theme}")
+    @PreAuthorize("hasRole('Coach') or hasRole('Athlete')")
+    @ResponseBody
+    public ResponseEntity<List<ActiviteDTO>> getActivityByTheme(@PathVariable("theme") String theme) {
+        try {
+            List<Activite> activites = activiteDAO.findByTheme(theme);
+            List<ActiviteDTO> dtos = activites.stream().map(activite -> {
+                ActiviteDTO dto = new ActiviteDTO();
+                dto.setName(activite.getName());
+                dto.setId(activite.getId());
+                dto.setTheme(activite.getTheme());
+                dto.setDuree(activite.getDuree());
+                dto.setDataActivite(activite.getDataActivite());
+                dto.setSessionId(activite.getSession() != null ? activite.getSession().getId() : null);
+                return dto;
+            }).collect(Collectors.toList());
+            return ResponseEntity.ok(dtos);
+        } catch (Exception ex) {
+            return ResponseEntity.status(HttpStatus.NOT_FOUND).body(null);
+        }
+
+    }
+
 }