Victor Forge
A baby's muscle tone and reflexes are critical for their survival and development. Nurses and lactation consultants assess these reflexes to identify any potential safety concerns, such as seizures or feeding difficulties, and to ensure the baby's nervous system and motor development are progressing normally. Breastfeeding, for instance, is linked to motor development, with head and neck strength, along with jaw strength, building with each feeding. However, issues such as high muscle tone (hypertonia) can affect a baby's ability to breastfeed, and conditions like torticollis, where the neck muscles are stiff or tight, can cause difficulties with latching and sucking. Assessing muscle activity during suction in breast, bottle, or cup feeding can help determine the best feeding method to promote the child's development.
| Characteristics | Values |
|---|---|
| Reflexes | Involuntary movements critical for a baby's survival and development. |
| Muscle Tone | High muscle tone or hypertonia can cause the baby to arch its back and hold itself stiffly, making breastfeeding more challenging. |
| Masseter Muscle | The masseter muscle has higher electrical activity during breastfeeding than bottle or cup feeding. |
| Head and Neck Strength | Breastfeeding helps build head and neck strength, which progresses to trunk control and eventually walking. |
| Jaw Strength | Breastfeeding strengthens jaw muscles, which aids in sound and word formation. |
| Body Tension | Body tension can affect a baby's ability to latch and feed effectively. Techniques like swaddling and oral restrictions can help manage tension. |
| Torticollis | A condition where neck muscles become stiff, causing the baby's head to tilt to one side. It can impact feeding and may be caused by positioning in the womb or birth trauma. |
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What You'll Learn
High muscle tone (hypertonia) and breastfeeding
Hypertonia, or high muscle tone, in infants can present several challenges for both the baby and the mother during breastfeeding. Hypertonia causes babies to appear stiff and have trouble moving their muscles, particularly in the arms, legs, and neck. This condition can be caused by a variety of factors, including the baby's position in the uterus, birthing practices, pain, neurological disorders, or even hunger.
Babies with hypertonia may exhibit a tight jaw, making it difficult for them to open their mouth wide enough to latch properly during breastfeeding. They may also experience restricted tongue movements, causing the tongue to bunch up or retract, which can lead to clamping or biting down on the breast. This can result in painful breastfeeding for the mother and inadequate milk intake for the baby. Additionally, babies with hypertonia may arch their body or throw their head back, known as hyperextension, and have trouble coordinating sucking, swallowing, and breathing.
To address these challenges, it is recommended to consult a healthcare professional or a lactation consultant. Tongue exercises and suck training can be beneficial, and different breastfeeding positions or latching techniques may be suggested. Relaxation techniques such as swinging the baby gently in a blanket or providing supervised tummy time on a parent's chest can also help soothe a tense baby.
It is important to note that hypertonia can sometimes be an indicator of underlying neurological or developmental issues, so early identification and intervention are crucial. With the right support and adjustments, breastfeeding can become a more comfortable and pleasant experience for both the baby and the mother.
In summary, hypertonia, or high muscle tone, in infants can present challenges during breastfeeding due to the associated muscle stiffness and restricted movements. However, with appropriate interventions, relaxation techniques, and professional support, these challenges can be addressed to make breastfeeding more comfortable and successful for both the infant and the mother.
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How to relax a baby with high muscle tone
High muscle tone, or hypertonia, in babies can be distressing for parents to witness and challenging for the baby. Hypertonia is the opposite of hypotonia, or "floppy infant syndrome", which is characterised by low muscle tone. Hypertonia is caused by damage to the parts of the brain that regulate muscle control, which can occur before, during, or shortly after birth. This brain damage can be caused by a number of factors, including premature birth, infections during pregnancy, a lack of oxygen during labour or delivery, and birth complications such as prolonged or complicated labour.
Babies with hypertonia have muscles that are constantly tight, even when they are at rest, and this can cause pain and make everyday movements difficult. They may have poor balance, trouble walking, and difficulty reaching and grabbing objects, and may need help eating. The condition can also affect their head and neck control, which can impact breastfeeding.
If your baby has been diagnosed with hypertonia, there are a number of treatments that can help relax their muscles and improve their movement. Physical therapy is often the first line of treatment, with therapists working with children to develop strength, flexibility, and range of motion. This includes stretching exercises, strengthening exercises, and functional training. Oral medications can also help to relax muscles and reduce stiffness, and in more severe cases, Botox injections or a surgically implanted pump can be used to deliver medication directly to the spinal cord. Braces and orthotic devices can also provide support to stiff muscles and joints.
In some cases, surgery may be considered to relieve tightness and spasticity by lengthening muscles or cutting certain nerves to reduce muscle tone. It is important to follow the treatment plan recommended by your healthcare provider and to be patient, as treatment for hypertonia is typically long-term.
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Assessing infant reflexes and muscle tone
Newborns are equipped with protective reflexes, such as the Moro or startle reflex, which is elicited by pulling up gently on the arms and then suddenly letting go. The infant will extend their arms and fingers out and around and may cry. This reflex typically disappears by the age of 2 months. Another protective reflex is observed when the eyes and nose are gently covered with a cloth, causing the infant to arch their body and push the object away with their hands.
The rooting reflex is another important reflex to assess. This is observed when the infant's cheek is touched, causing them to turn their head and open their mouth in the direction of the stimulus. This reflex helps with breastfeeding and usually disappears around 4 months of age. The sucking reflex is also related to breastfeeding and can be easily elicited by allowing the infant to suck on a finger or pacifier. The examiner should note the quality and strength of the sucking reflex, as preterm infants may exhibit a weak or uncoordinated response.
The grasp reflex is present in both the hands and feet of a newborn. When the palm of the hand is stroked, the infant will immediately grab and hold on tight. Similarly, stroking up the middle of the foot elicits the plantar grasp reflex, where the toes curl under and grasp the examiner's finger.
The fencing reflex is observed when the infant's head is turned to one side while lying on their back. The arm and leg on the side they are facing will straighten, while the opposite arm and leg will bend. This reflex typically disappears around 5 to 7 months of age.
Assessing these reflexes and muscle tone can help identify potential safety concerns, such as seizures or feeding difficulties, that may require further evaluation and intervention. The presence or absence of certain reflexes can also indicate underlying neurological or developmental issues, such as cerebral palsy or spinal cord injuries.
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The relationship between body tension and feeding
Breastfeeding is a complex process that involves the coordination of multiple muscles, nerves, and reflexes. The feeding process requires the muscles in the baby's face, jaw, and throat to be relaxed and coordinated. Any tension in these muscles can disrupt the feeding process and make it difficult for the baby to latch, suck, and swallow effectively.
Body tension in infants can be caused by various factors, including in-utero positioning, birth trauma, or physical discomfort. For example, interventions during delivery and the speed of birth can create tension. In Cesarean births, the absence of birth canal compression misses vital muscle adjustments, which are important for the baby's muscle development. Additionally, swaddling and restricting an infant's movements can impact muscle coordination and development. Oral restrictions, such as tongue ties, can also lead to tightness in other areas of the baby's body, affecting their feeding ability.
The presence of body tension in infants can significantly impact their feeding experience. Tension anywhere in the baby's body can limit their range of motion and overall mobility. Specifically, tension in the jaw, face, and throat muscles can interfere with the baby's ability to latch properly, resulting in a shallow latch and compensation, which may lead to nipple pain and poor milk transfer. This tension can also cause difficulty in sucking and swallowing, impacting the baby's ability to feed comfortably and efficiently.
Identifying body tension in infants during feeding can be challenging as they may not verbally communicate their discomfort. However, signs of tension can include difficulty feeding, pulling away, arching, poor latch, and pain or discomfort during feeding. If body tension is suspected, bodywork therapies such as chiropractic adjustments, myofascial work, and craniosacral fascial release can be effective in alleviating tension and improving the feeding experience.
It is important to address body tension in infants to ensure optimal muscle function during breastfeeding. Strategies such as improving latch and positioning, allowing free movement of the baby's hands, and avoiding gripping the baby's head can help mitigate tension and facilitate a comfortable and effective feeding experience. By understanding the relationship between body tension and feeding, caregivers can enhance the overall well-being of the infant during this critical developmental stage.
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Oral restrictions and muscle tension
Oral tension in infants is any restriction in oral movement that affects functional movements such as sucking and swallowing early in infancy, and language and speech in childhood. Oral tension can be caused by oral ties, which restrict the movement of the tongue due to muscle tension. The tongue is a large muscle that is attached to the hyoid bone, which is located just below the chin and at the top of the neck. The mobility of this bone is crucial for sucking and swallowing movements.
Oral tension can also lead to increased tension in the suprahyoid muscle, which affects the oral cavity and tongue movement. This tension can cause poor movement of the hyoid bone, impacting the infant's ability to suck and latch. Additionally, oral tension can affect the positioning comfort and strength of the neck and face, making it uncomfortable for the infant to turn their head or feed.
To address oral tension and improve oral function, oral motor therapy is often recommended. This therapy focuses on improving the strength, coordination, and control of the muscles in the mouth, including the lips, tongue, palate, and jaw. Oral motor therapy may include fun activities such as blowing bubbles, tongue exercises, lip-smacking, and drinking through straws. These exercises help enhance lip strength and control, increase muscle strength and tone, and improve overall oral function.
In addition to oral motor therapy, sensory stimulation may be incorporated to improve oral sensory awareness and tolerance. This may involve exploring different food textures or oral sensations. Oral motor therapy has been found to be effective in improving a child's ability to eat, speak, and engage in oral activities.
It is important to note that oral tension can be a result of premature birth, neurological disorders, developmental delays, or structural abnormalities. A thorough medical history and evaluation of muscle tone and coordination are crucial in understanding and addressing oral tension and its impact on the infant's development.
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Frequently asked questions
Breastfeeding has been shown to facilitate motor development. Head and neck strength, along with jaw strength, builds with each feeding as the baby works towards upright head control, which then precipitates trunk control, accelerating into rolling, crawling, toddling, and finally walking.
If a baby has high muscle tone (hypertonia), they may arch their back and hold themselves very stiffly. They may also have trouble breastfeeding and expend more energy doing so.
There are several ways to help relax a baby with high muscle tone. Specific exercises and techniques can help a tense baby breastfeed. It is important to rule out hunger or physical pain as a cause of high muscle tone.
