Why do barbell bench presses and dumbbell bench presses have different strengths under the same physical conditions?

Q: I weigh 170. The barbell bench press can be 170-180, but the dumbbell bench press can be 200. When you are in good condition, you can do 240. The muscle groups are similar. Why are the strengths different?

　　Answer: Barbell bench press can also stimulate the inner side, but the effect is not good. The method is to use a narrow lying point. However, once the distance between the hands is shortened, the force of the triceps will increase, resulting in the inability to fully exercise the inner side of the chest. Dumbbells are equal to split barbells, which increases the flexibility of movement angles and other flexibility. It can better stimulate the inner chest. If you want to better stimulate the inner side, you must use many other movements and equipment to complete it. If you use dumbbell bench press alone, you will not Enough.

　　But the effect of dumbbells is something that barbells cannot achieve

　　　Key parts: upper chest and deltoid muscles

　　Recommended weight: medium-light weight

　　Lying on a slanted bench press stool, holding dumbbells with both hands, palms facing each other, pushing them up until both arms are straightened. Holding dumbbells with both hands falls parallel to both sides, elbows bend slightly, and the dumbbells fall until they feel the muscles on both sides of the chest feel full stretching. When the dumbbell falls, inhale deeply. Holding the bell follows the same path and return to its original position.

　　Key points of training: If the dumbbells go to both sides When falling down, if both arms are straightened, it will be difficult for the chest muscles to feel stretched and contracted.

Chest muscle fitness illustration:

1. Sit-sit-shoulder-pushing chest

2. Smith bench press

3. Dumbbell bench press

4. Barbell bench press

5. Butterfly machine chest clamping

6. Tension of chest clamping chest

7. Pectoral arm flexion and extension

8. Lying on your back Pulling up with the arm flexed

9. Pull-ups

10. Lying on the back