Tag: muscle tone

Comparison of muscle tone development in various preterm infants at birth and term corrected gestational age versus term infants – a single-center cohort study

Priyanga Seemathan, Rajeswari Muthusamy, Siva Kumar. R, Rabindran Chandran

Priyanga Seemathan, Rajeswari Muthusamy, Siva Kumar. R, Rabindran Chandran – Comparison of muscle tone development in various preterm infants at birth and term corrected gestational age versus term infants – a single-center cohort study –  Fizjoterapia Polska 2025; 25(1); 327-334

DOI: https://doi.org/10.56984/8ZG007DYDBW

Abstract
Background. Muscle tone in preterm infants (PTI) is often reduced due to maturation-related hypotonia. As intrauterine and extrauterine environments vary, the maturation of muscle tone at 40 weeks of corrected gestational age (CGA) may also differ. This study aims to compare muscle tone development in extreme PTI, very PTI, and moderate to late PTI at birth and to compare PTI of various gestational ages with full-term infants (FTI) at 40 weeks of CGA.
Methods. This observational study was conducted with 132 infants based on specific criteria after obtaining informed consent. Muscle tone in PTI of various gestational ages was measured using the Amiel-Tison angle (ATA) at birth. They were reassessed for muscle tone at 40 weeks of corrected gestational age. Muscle tone in FTI was also assessed using ATA at birth.
Results. ANOVA and post hoc analysis of the three groups showed a significant difference in muscle tone among extreme PTI, very PTI, and moderate PTI at birth for all angles (p < 0.05). ANOVA of the three PTI groups and FTI showed a significant difference between the groups (p < 0.05), except for the dorsiflexion angle between moderate PTI and FTI at 40 weeks of corrected age.
Conclusions. The significant differences in muscle tone among PTI of various gestational ages at birth and between PTI and FTI at 40 weeks of CGA emphasize the need for addressing tonal deviations appropriately based on gestational age to enhance motor development.
Key words
Amiel-Tison angle, maturation-related hypotonia, muscle tone, preterm infants
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Assessment of changes in the electrical activity of muscles in classic squat with a barbell in powerlifting athletes and people training Crossfit

Bartosz Ruta, Wojciech Walczak. Kamila Pasternak-Mnich, Krzysztof Bortnik


Bartosz Ruta, Wojciech Walczak. Kamila Pasternak-Mnich, Krzysztof Bortnik – Assessment of changes in the electrical activity of muscles in classic squat with a barbell in powerlifting athletes and people training Crossfit. Fizjoterapia Polska 2022; 22(1); 134-151

Abstract
Aim. Assessment of the degree of muscle involvement during a squat with a barbell in powerlifters and Crossfit trainers using surface electromyography (sEMG).
Material and methods. The study included two groups of 30 people exercising Crossfit and powerlifting, with an average age of 24 ± 2.8 years. Inclusion criteria: male gender, age range-22 to 28 years and a minimum of two years of training experience. Muscle tension measurements were made using the EMG FREEEMG300 electromyograph, in accordance with the SENIAM guidelines. The study consisted of a total of twelve repetitions of squats with a barbell, in two series of frontsquat and backsquat techniques.
Results. The mean and mean maximum muscle tone, each time statistically significant differences were noted – in the Crossfit group it was higher than in powerlifting.
Conclusions. The involvement of muscles during the squat with the bar and with the load equal to the body weight, performed using the “back squad” and “front squat” techniques is significantly higher in competitors training Crossfit. The analysis of the subjective assessment of difficulties in performing the exercises showed that the level of difficulty depends on the technique of performing the exercises. Reported difficulties of exercises – 50% of crossfiters using the “back squat” technique and 100% of powerlifters using the “front squat” technique.
Key words:
powerlifting, crossfit, muscle tone, sEMG
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The efficiency or the Hanke Method in the correction of scoliosis in the light of selected radiological parameters

Tomasz Wolny, Edward Saulicz, Dagmara Molicka

Tomasz Wolny, Edward Saulicz, Dagmara Molicka – The efficiency or the Hanke Method in the correction of scoliosis in the light of selected radiological parameters. Fizjoterapia Polska 2002; 2(1); 35-39

Abstract
Background. The Hanke Method, also known as „E-Technik” (Entiwicklungskinesjologischer Technik), is among the less wellknown methods used to treat neuromuscular disorders. Since the elements of methods with a strictly neurophysiological mechanism of action are rarely used in corrective procedures, and the possible efficiency of these elements is typically stated in purely descriptive form, the aim of this article is to trace the impact of the Hanke method on the changes in selected parameters of the radiological evaluation of malformation. Material and methods. The research involved a group of 17 children and youth aged 7-15 (x = 10,1 +/- 2,7) with clinical and radiological symptoms of scoliosis. With only one exception these were first-degree malformations. Before and after a 10-month period of rehabilitation enhanced by certain elements of the Hanke method, X-ray photographs were subjected to evaluation. The Cobb angles, the costovertebral angles, and the Harrington indexes were calculated. All the data collected in this way were statistically analyzed. Results. The reduction of the angular value of primary curvature, associated with the simultaneous leveling out of differences in the costovertebral angles on the concave and convex sides, was obtained in 11 cases (64,7% of the subjects). Only in one case was distinct progress of malformation noted (5o). Conclusions. The results obtained point to the considerable therapeutic value of the Hanke method. The possibility of direct control over reflex reactions, leading in effect to normalization (symmetrization) of muscle tension constitutes the hallmark effects obtained by the application of methods for stimulating by reflex the neurophysiological mechanisms for controlling body posture require further thorough research.

Key words:
E-Technik, neuromuscular disorders, muscle tone, Posture

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The effect of massage with an electrostatic field of different frequency on the tension of selected skeletal muscles of the shoulder girdle

Patryk Kiljański, Joanna Kałuża-Pawłowska, Krzysztof Gieremek, Marek Kiljański

P. Kiljański, J. Kałuża-Pawłowska, K. Gieremek, M. Kiljański – The effect of massage with an electrostatic field of different frequency on the tension of selected skeletal muscles of the shoulder girdle. Fizjoterapia Polska 2018; 18(4); 138-158

 

Abstract
Objective of the work. The aim of the study is to show whether the electrostatic field massage has an effect on the fall in resting tension of the upper part of the trapezius muscle.
Material and methods. 20 people participated in the study, men and women aged 23-29. The subjects’ lifestyle was varied. The research group consisted of people practicing recreational sports, spending a lot of time in front of a computer or by reading books, as well as people doing casual work. All subjects were characterized by an active lifestyle.
The “Szirmai” myotonometer was used for measuring muscle tone. The Physiomed Deep Oscillation was used for massaging with the electrostatic field. The massage took place in two stages, each one with the use of a field with different frequency, respectively – 50 Hz (test No. 1) and 150 Hz (test No. 2). The interval between the tests was 2-3 weeks.
Results and conclusions. The research shows that electrostatic field massage has an effect on the muscle tone drop at both 50 Hz and 150 Hz. Statistically there was no significant difference in the reduction of muscle tone between 50 Hz and 150 Hz.

Key words:
massage, muscle tone, frequency, Deep Oscillation

 

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