To fix hunched back and rounded shoulders, it is faster to strengthen the ◯◯ muscle than to stretch
The lower trapezius is an important muscle for scapular stability and maintaining correct posture. In particular, it supports scapular depression and rotation, playing a role in reducing the burden on the shoulders and neck. Weakness in the lower trapezius can cause shoulder pain and poor posture, making selective training important. Here, we explain training methods targeting the lower trapezius, along with scientific insights.
Functions of the lower trapezius
The trapezius is divided into three parts: upper, middle, and lower, with each part playing a different role in scapular movement. The main functions of the lower trapezius are as follows:
• Scapular depression (the action of pulling the shoulder blades downward)
• Scapular upward rotation (the action of rotating the shoulder blades to assist in raising the arms)
• Scapular posterior tilt (the action of pulling the shoulder blades backward)
When the muscle strength of the lower trapezius decreases, shoulder impingement and scapular instability are more likely to occur.
Selective training methods
1. Y-raise exercise
The Y-raise exercise is one of the exercises that can effectively target the lower trapezius. It emphasizes the movement of upwardly rotating and posteriorly tilting the shoulder blades, allowing for intensive training of the lower trapezius.
How to do it:
• Lie face down on a flat bench and extend both arms overhead in a Y shape.
• With palms facing down, lift both arms while pulling the shoulder blades down.
• Perform the movement of squeezing the shoulder blades together while being conscious of the lower trapezius.
Points:
• Be careful not to round or arch your back.
• Perform the movement slowly while feeling the contraction of the lower trapezius.
2. Face Pull
The face pull is an exercise that emphasizes scapular stability and posterior tilt, and can provide significant stimulation to the lower trapezius.
How to do it:
• Using a cable machine or band, set the rope at face height.
• Grasp the rope with both hands and pull it toward your face, keeping your elbows open to the sides.
• Pull your elbows up to the sides of your face while squeezing your shoulder blades together.
Points:
• Focus on the movement of pulling the shoulder blades backward.
• Be careful not to let your shoulders rise during the movement, and be conscious of not using your neck muscles.
3. Prone T-raise
This exercise emphasizes scapular depression and posterior tilt, and can target the lower trapezius. Like the Y-raise exercise, it improves scapular stability.
How to do it:
• Lie face down on a flat bench and extend both arms straight out to the sides (T-shape position).
• With palms facing down, lift both arms while pulling the shoulder blades down.
• Perform the movement slowly while being conscious of squeezing the shoulder blades together.
Points:
• Do not use momentum; perform the movement while feeling the contraction of the lower trapezius.
• Be careful not to arch your back.
4. Scoop push-up
This is an exercise that can improve core stability while selectively strengthening the lower trapezius. It promotes scapular depression and upward rotation.
How to do it:
• In a push-up position, lower your body while pulling your shoulder blades together.
• Perform push-ups slowly while tightening your shoulder blades toward the lower part of your back.
Points:
• It is important to be conscious of scapular movement while stabilizing your core.
• Perform the movement slowly and in a controlled manner so as not to put a burden on your shoulders.
Scientific insights
In research regarding training targeting the lower trapezius, numerous exercises have been examined to selectively activate this muscle.
According to a study by Ekstrom et al. (2004), the Y-raise exercise and face pull are recognized as effective exercises for strongly eliciting muscle activity in the lower trapezius. Additionally, Cools et al. (2007) reported that strengthening the lower trapezius is useful for the prevention and improvement of shoulder impingement syndrome to enhance scapular stability.
Furthermore, in a study by McCabe et al. (2007), it is stated that by performing exercises related to scapular stability, selective activation of the lower trapezius is possible, which can reduce excessive stress on the shoulders. It has been confirmed that this contributes particularly to posture improvement and the normalization of shoulder movement.
Summary
Strengthening the lower trapezius is extremely important for improving scapular stability and posture, and for preventing shoulder and neck pain. By incorporating selective training such as Y-raise exercises, face pulls, and T-raises, you can effectively strengthen the lower trapezius. Also, scientific research shows that these exercises elicit muscle activity in the lower trapezius and contribute significantly to shoulder health.