1, muscle gain repetition number 8- 12RM, strength enhancement 1-6RM. The training direction is different, so the obvious strength growth of muscle gain is not obvious.

2. Strength also includes the ability of nerve coordination and the standard degree of action. Strength weightlifting requires that nerves have strong muscle recruitment ability and can coordinate the use of muscles that can be used all over the body. Bodybuilding requires isolating muscles, that is, trying to stimulate isolated muscles with appropriate weight. For example, bench press bodybuilding only uses chest muscles as far as possible, and weightlifting requires the coordination of the whole upper body.

3. The action standard and proprioception are actually similar to the previous ones, that is, if the action standard and proprioception ability are improved, you will better isolate your muscles, others will make a bend with your whole body muscles, and you only use biceps. Although the weight you lift is not as good as his, your effect is better than his in building muscles.

4, the habit of exerting strength, strength is just a tool for fitness, for example, you can use the whole body before lifting heavy objects, and then you get used to it, so you may only subconsciously use your hips and legs to lift heavy objects, so you feel that your strength has not increased.

5. The decrease of body fat causes muscles to look swollen. In fact, the dimension may be reduced, which is more common in people who continue to train after training, but the loss of body fat makes them feel bigger.

Generally speaking, I still think that muscle dimension is positively related to strength, or it may be that your endurance has improved, but the maximum strength has not changed much, but I still think it is unlikely, mainly because of personal cognitive deviation, thinking that strength has not changed.