diff --git a/models/training.go b/models/training.go
index fdd5a44..67b0625 100644
--- a/models/training.go
+++ b/models/training.go
@@ -21,12 +21,13 @@ type Belt struct {
 // 对应Flutter的HeartRate结构
 type HeartRate struct {
 	gorm.Model
-	TrainId    uint   `gorm:"column:train_id; index" json:"trainId"`     // 外键关联训练记录[4](@ref)
-	BeltId     uint   `gorm:"column:belt_id;index" json:"bid"`           // 对应Dart的bid字段
-	BeltAddr   string `gorm:"column:belt_addr;size:255" json:"beltAddr"` // 对应Dart的beltAddr字段
-	Time       int64  `gorm:"type:bigint" json:"time"`                   // 保持与前端一致的毫秒时间戳[3](@ref)
-	Value      int    `gorm:"type:int" json:"value"`
-	Identifier string `gorm:"uniqueIndex;type:varchar(255)" json:"identifier"`
+	TrainId      uint   `gorm:"column:train_id; index" json:"trainId"`     // 外键关联训练记录[4](@ref)
+	BeltId       uint   `gorm:"column:belt_id;index" json:"bid"`           // 对应Dart的bid字段
+	BeltAddr     string `gorm:"column:belt_addr;size:255" json:"beltAddr"` // 对应Dart的beltAddr字段
+	Time         int64  `gorm:"type:bigint" json:"time"`                   // 保持与前端一致的毫秒时间戳[3](@ref)
+	Value        int    `gorm:"type:int" json:"value"`
+	PredictValue int    `gorm:"type:int" json:"predictValue"`
+	Identifier   string `gorm:"uniqueIndex;type:varchar(255)" json:"identifier"`
 }
 
 // 对应Flutter的TrainRecord结构