diff --git a/Wpf_AiSportsMicrospace/Common/SportDetectionQueue.cs b/Wpf_AiSportsMicrospace/Common/SportDetectionQueue.cs
index 18b08ee..c3f816d 100644
--- a/Wpf_AiSportsMicrospace/Common/SportDetectionQueue.cs
+++ b/Wpf_AiSportsMicrospace/Common/SportDetectionQueue.cs
@@ -1,8 +1,7 @@
-using System;
+using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Security.Cryptography;
-using System.Text;
 using System.Threading.Tasks;
 using Yztob.AiSports.Inferences.Things;
 using Yztob.AiSports.Postures.Sports;
@@ -10,7 +9,7 @@ using Yztob.AiSports.Postures.Sports;
 namespace Wpf_AiSportsMicrospace.Common
 {
     /// <summary>
-    /// 运动检后台线程顺序检测队列
+    /// 运动检后台线程顺序检测队列（线程安全）
     /// </summary>
     internal class SportDetectionQueue
     {
@@ -36,8 +35,8 @@ namespace Wpf_AiSportsMicrospace.Common
         #endregion
 
         #region 私有成员
-        private readonly Queue<QueueItem> _queues;
-        private int _signral = 0; //0-停止 1-执行中 2-停止信号
+        private readonly ConcurrentQueue<QueueItem> _queues;
+        private volatile int _signral = 0; //0-停止 1-执行中 2-停止信号
         #endregion
 
         #region 构造方法
@@ -46,7 +45,7 @@ namespace Wpf_AiSportsMicrospace.Common
         /// </summary>
         public SportDetectionQueue()
         {
-            _queues = new Queue<QueueItem>();
+            _queues = new ConcurrentQueue<QueueItem>();
         }
         #endregion
 
@@ -73,14 +72,12 @@ namespace Wpf_AiSportsMicrospace.Common
             _signral = 1;
             while (_signral == 1)
             {
-                //无队列
-                if (!_queues.Any())
+                if (!_queues.TryDequeue(out var item))
                 {
-                    Thread.Sleep(5);
+                    Thread.Sleep(1);
                     continue;
                 }
 
-                var item = _queues.Dequeue();
                 if (item == null)
                     continue;
 
@@ -129,7 +126,7 @@ namespace Wpf_AiSportsMicrospace.Common
                 return;
 
             _signral = 1;
-            _queues.Clear();//队列清空
+            DrainQueue();
             var thread = new Thread(Detecting);
             thread.IsBackground = true;
             thread.Start();
@@ -145,7 +142,7 @@ namespace Wpf_AiSportsMicrospace.Common
 
 
             _signral = 2;
-            _queues.Clear();
+            DrainQueue();
         }
 
         /// <summary>
@@ -153,7 +150,12 @@ namespace Wpf_AiSportsMicrospace.Common
         /// </summary>
         public void Clear()
         {
-            _queues.Clear();
+            DrainQueue();
+        }
+
+        private void DrainQueue()
+        {
+            while (_queues.TryDequeue(out _)) { }
         }
         #endregion
     }
diff --git a/Wpf_AiSportsMicrospace/Common/SportOperate.cs b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
index ccd8b65..b03c187 100644
--- a/Wpf_AiSportsMicrospace/Common/SportOperate.cs
+++ b/Wpf_AiSportsMicrospace/Common/SportOperate.cs
@@ -1,4 +1,4 @@
-using AiSportsMicrospaceDB.DBContext;
+using AiSportsMicrospaceDB.DBContext;
 using Common;
 using HandyControl.Controls;
 using Microsoft.EntityFrameworkCore.Storage.Json;
@@ -196,13 +196,11 @@ namespace Wpf_AiSportsMicrospace.Common
             for (int i = 0; i < humans.Count; i++)
             {
                 var h = humans[i];
-
                 if (IsAnyFootInCircle(h, cx, cy, halfW, halfH))
                 {
                     target = h;
+                    break;
                 }
-
-                if (target != null) break;
             }
 
             if (target == null)
diff --git a/Wpf_AiSportsMicrospace/Views/JumpLong/StandingLeap.xaml.cs b/Wpf_AiSportsMicrospace/Views/JumpLong/StandingLeap.xaml.cs
index 000ed65..33cfc77 100644
--- a/Wpf_AiSportsMicrospace/Views/JumpLong/StandingLeap.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/JumpLong/StandingLeap.xaml.cs
@@ -1,4 +1,4 @@
-using AiSportsMicrospaceDB.DBContext;
+using AiSportsMicrospaceDB.DBContext;
 using AiSportsMicrospaceDB.Entities;
 using Common;
 using Dto;
@@ -147,6 +147,10 @@ namespace Views.JumpLong
         {
             try
             {
+                // 仅在运动中进行跳远检测，避免等待举手时的重复推理
+                if (_sportType != 1)
+                    return;
+
                 var buffer = frame.GetImageBuffer(ImageFormat.Jpeg).ToArray();
                 var humanResult = await Task.Run<HumanInferenceResult>(() => _humanPredictor.Predicting(buffer, frame.Number));
                 var objects = _sport.Equipment ? await Task.Run<List<BoundingBox>>(() => _objectDetector.Detecting(buffer)) : new List<BoundingBox>();
diff --git a/Wpf_AiSportsMicrospace/Views/Main.xaml.cs b/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
index db72059..d02b9f7 100644
--- a/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/Main.xaml.cs
@@ -1,4 +1,4 @@
-
+
 using SharpDX.Direct3D9;
 using System.Collections.Concurrent;
 using System.Drawing;
@@ -32,6 +32,8 @@ namespace Wpf_AiSportsMicrospace.Views
         private readonly ConcurrentQueue<VideoFrame> _frameQueue = new();
         private readonly CancellationTokenSource _cts = new();
         private readonly object _reconnectLock = new();
+        private int _lastEnqueuedFrame = -1;
+        private const int MaxFrameQueueSize = 8;  // 队列上限，防止内存堆积
 
         public event EventHandler<List<Human>> HumanFrameUpdated;
 
@@ -75,6 +77,14 @@ namespace Wpf_AiSportsMicrospace.Views
 
             WebcamClient.OnExtractFrame += frame =>
             {
+                // 跳帧：降低识别负载，保持约 15fps，与其他预览逻辑一致
+                if (_lastEnqueuedFrame >= 0 && frame.Number - _lastEnqueuedFrame < 2)
+                    return;
+                _lastEnqueuedFrame = (int)frame.Number;
+
+                // 队列满时丢弃新帧，避免内存堆积和延迟
+                if (_frameQueue.Count >= MaxFrameQueueSize)
+                    return;
                 _frameQueue.Enqueue(frame);
             };
 
@@ -90,8 +100,8 @@ namespace Wpf_AiSportsMicrospace.Views
                     }
                     else
                     {
-                        // 避免 CPU 占满
-                        Thread.Sleep(5);
+                        // 队列空时短暂休眠，1ms 比 5ms 响应更快
+                        Thread.Sleep(1);
                     }
                 }
             }, _cts.Token);