The influence of head position and head position change on spontaneous body posture and motility in full-term AGA and SGA newborn infants

Kranen-Mastenbroeka, V.H.J.M. van; Folmer, Katinka; Caberg, H; Kingma, Herman; Blanco, C. E.; Troost, J.; Hasaan, T.H.M.; Vles, Johan S.H.

doi:10.1016/s0387-7604(96)00484-6

Cited by 8 publications

(3 citation statements)

References 22 publications

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“…Since the movements of the shoulder girdle and upper extremities were prevented under the head-neck rotation condition of this study, we think that ATNR was not activated; thus, grip strength was unaffected. In addition, Clopton et al 25) reported that the ATNR was activated in the upper and lower extremities through passive head turning in only 4.92% of newborns, and that it was activated in only 1-11% full-term neonates 26,27) . The application of Kinesio tape to the flexor muscles of the dominant hand significantly increased grip strength compared to that measured in the neutral position (p<0.05).…”

Section: Discussionmentioning

confidence: 99%

Effects of Head-neck Rotation and Kinesio Taping of the Flexor Muscles on Dominant-hand Grip Strength

Lee

Yoo

Lee³

2010

J Phys Ther Sci

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Abstract.[Purpose] The purposes of this study were to examine whether the asymmetrical tonic neck reflex affects the dominant-hand grip strength in healthy adults and to compare the results with the degree of grip strength achieved when Kinesio tape was applied to the flexor muscles of the dominant hands.[Subjects] The subjects were 20 men and 20 women who agreed to participate in the study.[Methods] Grip strength was measured using a Jamer dynamometer under 3 conditions: the neutral position, the head-neck system rotating toward the nondominant hand in the transverse plane, and after applying Kinesio tape to the flexor muscles of the dominant hand. [Results] In the neutral position, the grip strength of the dominant hand was significantly greater after applying Kinesio tape to the flexor muscles than that of the untaped dominant hand in the neutral position or the head-neck rotation condition in both males and females.[Conclusion] These results suggest that the muscle strength of the upper extremity in subjects with upperextremity muscle weakness may be improved by clinical application of Kinesio taping as a supplementary measure.

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Section: Discussionmentioning

confidence: 99%

Effects of Head-neck Rotation and Kinesio Taping of the Flexor Muscles on Dominant-hand Grip Strength

Lee

Yoo

Lee³

2010

J Phys Ther Sci

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“…We observed kicking movements with lower limbs that facilitated the approach of trunk to chin and hands to face and hand to mouth, by arms flexion. Head rotations are spontaneous movements and are not passively initiated as responses to the asymmetrical cervical tonic reflex (ACTR) [ 14 ]. We observed that spontaneous orofacial movements and postures depend on both the quality of typical development global movements and the WMs.…”

Section: Discussionmentioning

confidence: 99%

Spontaneous Orofacial Movements at Writhing and Fidgety General Movements Age in Preterm and Full-Term Infants

2022

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Background: As general spontaneous movements at the writhing and fidgety ages have been important for the early identification of neurodevelopmental impairment of both full-term and preterm infants, the knowledge of the spontaneous orofacial movements at these ages also seems to be important for the diagnosis of oral function, particularly in preterm infants. Therefore, we decided to first classify preterm and full-term infants according to general movements ages, and then to record, describe, compare, and discuss their spontaneous orofacial movements. Methods: This cross-sectional study included 51 preterm infants (born between 28 and 36 weeks) and 43 full-term infants who were classified at the writhing and fidgety ages of Prechtl’s method of general movements assessment. Their spontaneous orofacial movements were recorded on video, and The Observer XT software (Noldus) was used to record the quantitative values of the movements. Results: Poor repertoires of writhing movements were more frequent in the preterm infants (90.9%) compared to full-term ones (57.9%). Positive fidgety movements were observed in 100% of both preterm and full-term infants. Oral movements were similar for both preterm and full-term infants, regardless of their movement stage. Conclusion: All spontaneous orofacial movements were present both in preterm and full-term infants, albeit with higher frequency, intensity, and variability at fidgety age.

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“…Although active and passive head turning were equally likely to elicit the reflex if the head was fully turned, the passive head turn was much more likely to be a full turn than the infant's own active head turn. Several researchers 5,16,17 have reported very low incidences of the ATNR during spontaneous supine postures even when using a visual stimulus to stimulate head turning. Full-term newborn infants typically exhibit a posture of physiologic flexion (passively flexed state of the newborn infant resulting from crowding in the womb and consequent shortening of soft tissues) with the head maintained slightly out of midline when the infant is supine.…”

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confidence: 99%

Investigation of Trunk and Extremity Movement Associated With Passive Head Turning in Newborns

et al. 2000

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Background and Purpose. Physical therapist examination of pediatric clients or clients with neurological conditions often includes the observation of stereotypical movement patterns such as the asymmetrical tonic neck reflex and righting reactions. The purpose of this study was to investigate whether extremity and trunk responses to passive head turning could be documented in newborn infants. Subjects and Methods. Forty-two newborns with no known medical problems were videotaped within 5 days of birth while an investigator turned their heads left and right. Videotapes were stopped at 5-second intervals to record the direction of head turn with the rest of the body obscured. A second investigator recorded trunk and extremity position with the head obscured. Results. The direction of head turning affected upperand lower-extremity position, with extension stronger on the face side. The direction of trunk convexity was also affected by head position, with the trunk convex to the side to which the face was turned. Conclusion and Discussion. Extremity responses and trunk responses to passive head turning can be documented corresponding to patterns reported for the asymmetrical tonic neck reflex and righting reflexes in neonates with no known medical problems more frequently than would occur by chance. In some approaches to physical therapy, the asymmetrical tonic neck reflex (ATNR) is viewed as a reflex response to turning of the head. 1,2 The response consists of extension of the upper and lower extremities on the side to which the face is turned and flexion of upper and lower extremities on the side to which the skull is turned. The ATNR has been theorized to play an important role in normal development of human movement by facilitating early visual inspection of the hand, and thus eye-hand coordination, as well as by modifying newborn symmetry. 1,2 Similarly, the neonatal righting reflex is another reflex in which the stimulus is head turning. The response is believed to be for the trunk to turn as a block in the direction of the head turn. This righting reflex has been viewed as supporting the infant's ability to align body parts for rolling by causing turning of the body in response to a head turn. 1,2 Magnus 3 first reported the ATNR and believed that the phenomenon occurs only in pathological conditions in humans. Gesell 4 was the first author to report that the reflex was a "normal and prominent feature of early infant behavior" and asserted that the reflex was present universally at 4 weeks when the infant was in a supine position. Since Gesell's time, numerous investigators 5-10 have reported evidence of the ATNR in newborn infants with no known medical problems. These investigators reported prevalence rates of the reflex among full-term neonates in the range of 40% to 67.5%. Increased prevalence as high as 91% among infants born prematurely and tested at 40 weeks postconceptual age has been reported, 8,11,12 and the ATNR has been reported to be universally present in premature infants over 33 weeks postcon...

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The influence of head position and head position change on spontaneous body posture and motility in full-term AGA and SGA newborn infants

Cited by 8 publications

References 22 publications

Effects of Head-neck Rotation and Kinesio Taping of the Flexor Muscles on Dominant-hand Grip Strength

Effects of Head-neck Rotation and Kinesio Taping of the Flexor Muscles on Dominant-hand Grip Strength

Spontaneous Orofacial Movements at Writhing and Fidgety General Movements Age in Preterm and Full-Term Infants

Investigation of Trunk and Extremity Movement Associated With Passive Head Turning in Newborns

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