The way to improve the leg is to practice vital capacity and improve the heart function. It can be said that the development of thigh muscles is directly proportional to vital capacity and heart function.

The deeper you squat, the more vital capacity you need and the stronger your heart function. Obviously, the lung capacity of squatting is greater than that of squatting.

Heavy-shoulder vertical squat requires more vital capacity and stronger heart function than other squats (hard-pull dumbbell squat, two-handed barbell squat, oblique squat). Because the barbell is pressed vertically above the heart.

The main reason why pedaling is larger than squatting is that the vital capacity required by pedaling is small, which is about 1/2 of squatting, and the pressure on the heart is also small, so the pedaling amount is twice that of squatting. However, the knee joint moves a long distance when kicking, which affects the force on the thigh. When lying flat, the elbow joint moves a long distance, which affects the stress on the upper arm. So push-ups are similar to horizontal push-ups.

Squat lifts are similar to parallel bars, arm flexion and extension or push-ups. The quadriceps femoris and triceps brachii of the upper arm bear the same force, because there is less movement of knee joint and elbow joint.

Is it inappropriate for people with poor cardiopulmonary function to practice squats? No, because the central lung function is strengthened in the process of practicing squat.

Conclusion The difficulty of leg training lies in squat. If you dare to practice squats, it is not difficult to practice your legs.

Leg flexion and extension and leg bending are good leg exercises, and the principle is the same as arm flexion and extension and arm bending.

Therefore, friends who need thighs to lose weight don't have to worry. Practicing leg flexion and extension and leg bending can effectively solve the problem.