diff --git a/client/data/routines.py b/client/data/routines.py
index b8531c8..0a4ff17 100644
--- a/client/data/routines.py
+++ b/client/data/routines.py
@@ -14,13 +14,27 @@
 
 
 class User(NamedTuple):
-    """Represents a user record in the SQLite database"""
+    """Represents a user record in the SQLite database
+
+    Attributes:
+        id_: Unique id for the user. Should be set to None when user does not exist in DB.
+    """
 
     id_: Optional[int]
 
 
 class Posture(NamedTuple):
-    """Represents a posture record in the SQLite database"""
+    """Represents a posture record in the SQLite database
+
+    Attributes:
+        id_: Unique id for the posture record. Should be set to None when record does not exist in
+            DB.
+        user_id: The user for which this posture applies to.
+        prop_good: Proportion of time the user is in the frame which the posture is good.
+        prop_in_frame: Proportion of time the user is in the frame during the period.
+        period_start: Start of the tracked period.
+        period_end: End of the tracked period.
+    """
 
     id_: Optional[int]
     user_id: int
@@ -85,7 +99,7 @@ def get_users(num: int = 10) -> list[User]:
     """
     Args:
         num: Number of user to retrieve
-        
+
     Returns:
         num users from the database.
     """
@@ -99,7 +113,7 @@ def get_postures(num: int = 10) -> list[Posture]:
     """
     Args:
         num: Number of posture records to retrieve
-        
+
     Returns:
         num posture records from the database.
     """
diff --git a/client/models/pose_detection/landmarking.py b/client/models/pose_detection/landmarking.py
index 76c82b6..d272120 100644
--- a/client/models/pose_detection/landmarking.py
+++ b/client/models/pose_detection/landmarking.py
@@ -14,10 +14,13 @@
 
 @dataclass
 class AnnotatedImage:
-    """Represents mutable annotated image through data attribute.
+    """Represents mutable annotated image container.
 
     Can be used to set annotated image within a callback asynchronously without raising
     an error.
+
+    Attributes:
+        data: The actual image.
     """
 
     data: Optional[np.ndarray] = None
diff --git a/client/models/pose_detection/routines.py b/client/models/pose_detection/routines.py
index 59e261f..fb167ac 100644
--- a/client/models/pose_detection/routines.py
+++ b/client/models/pose_detection/routines.py
@@ -25,7 +25,11 @@
 
 
 class DebugPostureTracker(PoseLandmarker):
-    """Handles routines for a Debugging Posture Tracker"""
+    """Handles routines for a Debugging Posture Tracker.
+
+    Attributes:
+        annotated_image: Mutable container for an image which may be mutated asynchronously.
+    """
 
     def __init__(
         self,
@@ -35,17 +39,17 @@ def __init__(
     ) -> None:
         super().__init__(graph_config, running_mode, packet_callback)
         self.annotated_image = AnnotatedImage()
-        self.video_capture = cv2.VideoCapture(0)
+        self._video_capture = cv2.VideoCapture(0)
 
     def track_posture(self) -> None:
         """Get frame from video capture device and process with pose model, then posture
         algorithm. Print debugging info and display landmark annotated frame.
         """
-        success, frame = self.video_capture.read()
+        success, frame = self._video_capture.read()
         if not success:
             return
 
-        frame_timestamp_ms = self.video_capture.get(cv2.CAP_PROP_POS_MSEC)
+        frame_timestamp_ms = self._video_capture.get(cv2.CAP_PROP_POS_MSEC)
         mp_image = mp.Image(image_format=mp.ImageFormat.SRGB, data=frame)
         self.detect_async(mp_image, int(frame_timestamp_ms))
 
@@ -54,7 +58,7 @@ def track_posture(self) -> None:
             cv2.imshow("output", self.annotated_image.data)
 
     def __exit__(self, unused_exc_type, unused_exc_value, unused_traceback) -> None:
-        self.video_capture.release()
+        self._video_capture.release()
         cv2.destroyAllWindows()
         super().__exit__(unused_exc_type, unused_exc_value, unused_traceback)