scholarly journals The Effect of Abdominal and Spinal Muscles Fatigue in Spinal Postures

2020 ◽  
Vol 3 (1) ◽  
Keyword(s):  
Muscle Fatigue ◽  
Pelvic Tilt ◽  
Abdominal Muscle ◽  
Fatigue Tests ◽  
Abdominal Muscles ◽  
Healthy Individuals ◽  
Spinal Curvatures ◽  
Trunk Inclination ◽  
Post Test ◽  
Spinal Muscles

Background: A Pre/Post-Test Cohort investigating the effect of spinal and abdominal muscles fatigue on spinal curvatures. Method and Results: The effect of spinal and abdominal muscle fatigue on pelvic tilt, trunk inclination and the lordotic angle, and on the rotation of the T6, L2 and L4 vertebras was investigated in 10 healthy individuals. Abdominal and spinal muscles fatigue had a significant effect (p <0.05) on pelvic tilt, trunk inclination and lordotic angle. Conclusion: Application of simple and quick fatigue tests resulted in changes in all static parameters (pelvic tilt, trunk inclination and lordotic angle) as measured by the DIERS system.

scholarly journals THE THE EFFECT OF ZUMBA EXERCISE FOR INCREASING ABDOMINAL STRENGTH IN WOMEN WHO HAS BEEN GIVING BIRTH AT NORTH SANGLAH VILLAGE

2018 ◽  
Vol 6 (3) ◽  
pp. 9
Author(s):  
I Gusti Ayu Rea Vera Wijaya ◽  
A.A Nyoman Trisna Narta Dewi ◽  
Susy Purnawati
Keyword(s):  
Test Score ◽  
Abdominal Muscle ◽  
Wilcoxon Test ◽  
Abdominal Muscles ◽  
Exclusion Criteria ◽  
Muscle Strengthening ◽  
Group Design ◽  
Strengthening Exercise ◽  
Post Test ◽  
Abdominal Muscle Strength

ABSTRACT               Abdominal muscle strength decreasing could happen in women who has been giving birth. Zumba exercise is a modification of aerobic exercise with latin music and dance that could be used for muscle strengthening exercise. The purpose of the experiment is for knowing the effect of zumba exercise to increase the abdominal muscles strength in women who has been giving birth. The research is a pre-experimental with a pre-test and post-test one group design. The research has been done in North Sanglah Village with total of 18 samples that was chosen by the Curl Up test score and inclusion and exclusion criteria. Data analyzed using Saphiro Wilk test and  Wilcoxon Test. The results shown there are significant increasing of abdominal muscles strength after given the zumba exercise, p=0,000 (p<0,05). Zumba exercise could increase the abdominal muscles strength in samples with a 26,7% increasing percentage.   Keywords: zumba exercise, abdominal mucles strength decreasing.

Abdominal muscle fatigue after maximal ventilation in humans

1996 ◽  
Vol 81 (4) ◽  
pp. 1477-1483 ◽  
Author(s):  
Dimitris Kyroussis ◽  
Gary H. Mills ◽  
Michael I. Polkey ◽  
Carl-Hugo Hamnegard ◽  
Nicholaos Koulouris ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Prone Position ◽  
Low Frequency ◽  
Normal Subjects ◽  
Abdominal Muscle ◽  
Abdominal Muscles ◽  
Power Relationship ◽  
Optimum Level ◽  
Gastric Pressure ◽  
Low Frequency Fatigue

Kyroussis, Dimitris, Gary H. Mills, Michael I. Polkey, Carl-Hugo Hamnegard, Nicholaos Koulouris, Malcolm Green, and John Moxham. Abdominal muscle fatigue after maximal ventilation in humans. J. Appl. Physiol. 81(4): 1477–1483, 1996.—Abdominal muscles are the principal muscles of active expiration. To investigate the possibility of abdominal muscle low-frequency fatigue after maximal ventilation in humans, we stimulated the nerve roots supplying the abdominal muscles. We used a magnetic stimulator (Magstim 200) powering a 90-mm circular coil and studied six normal subjects. To assess the optimum level of stimulation and posture, we stimulated at each intervertebral level between T7 and L1 in the prone, supine, and seated positions. At T10, we used increasing power outputs to assess the pressure-power relationship. Care was taken to avoid muscle potentiation. Twitch gastric pressure (Pga) was recorded with a balloon-tipped catheter. Mean (±SD) baseline twitch Pga measured with the subjects in the prone position at T10 was 23.5 ± 5.4 cmH2O. Within-occasion mean twitch Pga coefficient of variation was 4.6 ± 1.1%. Twitch Pga was measured with the subjects in the prone position with stimulation over T10 before and after 2 min of maximal isocapnic ventilation (MIV). Twenty minutes after MIV, mean twitch Pga fell by 17 ± 9.1% ( P = 0.03) and remained low 90 min after MIV. We conclude that after maximal ventilation in humans there is a reduction of twitch Pga and, therefore, of low-frequency fatigue in abdominal muscles.

scholarly journals Abdominal muscles activity during abdominal bracing and posterior pelvic tilt in women after natural birth and after caesarean delivery

2020 ◽  
Vol 22 (4) ◽  
Author(s):  
Natalia Kuciel ◽  
Justyna Mazurek ◽  
Karolina Biernat ◽  
Łukasz Pawik ◽  
Edyta Sutkowska
Keyword(s):  
Muscle Activity ◽  
Pelvic Tilt ◽  
Abdominal Muscle ◽  
Rectus Abdominis ◽  
Transversus Abdominis ◽  
Abdominal Muscles ◽  
Electromyographic Activity ◽  
Locomotor System ◽  
Natural Birth ◽  
Functional Examination

Purpose: Exercises after pregnancy can reduce the severity and risk of postnatal locomotor system disorders and muscular dysfunctions. The aim of the study was to evaluate electromyographic activity of abdominal muscles in women who gave birth naturally and via a caesarean section, and to compare it to a group of women who have never given birth. Methods: 27 women were included into the study after completing the personal questionnaire and functional examination. The surface electromyography during abdominal bracing and posterior pelvic tilt was used to test rectus abdominis muscles and internus oblique/ transversus abdominis muscles bilaterally. After normalization test, patients were asked to perform abdominal bracing and posterior pelvic tilt exercises. Results: Activity of rectus abdominis muscle is higher in posterior pelvic tilt compared to abdominal bracing. It should be noted that the internus oblique/transversus abdominis muscle activity in both exercises is similar. Conclusions: In women after natural birth and after a cesarean section who experienced no locomotor system symptoms, no statistically significant differences in abdominal muscle activity in both exercises were observed. In each group being studied, posterior pelvic tilt activated rectus abdominis muscles to a greater extent than just bracing.

scholarly journals Short-term effect of a hamstring stretching program in hamstring extensibility and sagittal spinal curvatures in high school students

2020 ◽  
Vol 15 (43) ◽  
pp. 75-84
Keyword(s):  
High School ◽  
High School Students ◽  
Intervention Program ◽  
Pelvic Tilt ◽  
Trunk Flexion ◽  
School Students ◽  
Spinal Curvatures ◽  
Pelvic Inclination ◽  
Post Test ◽  
Straight Leg Raise

Hamstring shortness and postural deformities are frequent in adolescents. For this reason, the purpose of this study was to analyse the influence of a shortterm stretching program in hamstring extensibility and sagittal spinal curvatures in high school students. Sixty-two male high school students aged 14-17 years old performed a 70 seconds hamstring stretching program (3 exercises) twice a week for five weeks during their physical education classes. Hamstring extensibility was measured by the straight leg raise test and sit-and-reach test. Thoracic and lumbar curves and pelvic inclination were measures in relaxed standing and in the sit-and-reach test. These measures were assessed before (pre-test) and after (post-test) the intervention program. Significant increases in the sit-and-reach score (d= 0.23) and in the straight leg raise angle (d= 0.85-0.90) were found. Sagittal spinal curvatures in standing showed no differences between pre- and post-test. In the maximal trunk flexion position during the sit-and-reach was detected a lower thoracic kyphosis and posterior pelvic tilt (p < 0.05) in post-test although with a low size effect (d=0.02-0.22). A hamstring muscle stretching program with a volume of 2 sessions per week (70 seconds each session), for 5 weeks, improves hamstring extensibility in adolescents and slightly reduces the thoracic bending and posterior pelvic tilt in trunk flexion postures with extended knees.

Motor responses to positive-pressure breathing in the developing opossum

1985 ◽  
Vol 58 (5) ◽  
pp. 1489-1495 ◽  
Author(s):  
J. P. Farber
Keyword(s):  
Airway Resistance ◽  
Upper Airway ◽  
Abdominal Muscle ◽  
Positive Pressure ◽  
Postnatal Life ◽  
Abdominal Muscles ◽  
Upper Airways ◽  
Motor Responses ◽  
Upper Airway Resistance ◽  
Upper Airway Muscles

The suckling opossum exhibits an expiration-phased discharge in abdominal muscles during positive-pressure breathing (PPB); the response becomes apparent, however, only after the 3rd-5th wk of postnatal life. The purpose of this study was to determine whether the early lack of activation represented a deficiency of segmental outflow to abdominal muscles or whether comparable effects were observed in cranial outflows to muscles of the upper airways due to immaturity of afferent and/or supraspinal pathways. Anesthetized suckling opossums between 15 and 50 days of age were exposed to PPB; electromyogram (EMG) responses in diaphragm and abdominal muscles were measured, along with EMG of larynx dilator muscles and/or upper airway resistance. In animals older than approximately 30 days of age, the onset of PPB was associated with a prolonged expiration-phased EMG activation of larynx dilator muscles and/or decreased upper airway resistance, along with expiratory recruitment of the abdominal muscle EMG. These effects persisted as long as the load was maintained. Younger animals showed only those responses related to the upper airway; in fact, activation of upper airway muscles during PPB could be associated with suppression of the abdominal motor outflow. After unilateral vagotomy, abdominal and upper airway motor responses to PPB were reduced. The balance between PPB-induced excitatory and inhibitory or disfacilitory influences from the supraspinal level on abdominal motoneurons and/or spinal processing of information from higher centers may shift toward net excitation as the opossum matures.

Triangularis sterni muscle use in supine humans

1987 ◽  
Vol 62 (3) ◽  
pp. 919-925 ◽  
Author(s):  
A. De Troyer ◽  
V. Ninane ◽  
J. J. Gilmartin ◽  
C. Lemerre ◽  
M. Estenne
Keyword(s):  
Normal Subjects ◽  
Abdominal Muscle ◽  
Abdominal Muscles ◽  
Neural Activation ◽  
Trained Subjects ◽  
Rib Cage ◽  
Residual Capacity ◽  
External Oblique ◽  
Head Flexion ◽  
Static Head

The electrical activity of the triangularis sterni (transversus thoracis) muscle was studied in supine humans during resting breathing and a variety of respiratory and nonrespiratory maneuvers known to bring the abdominal muscles into action. Twelve normal subjects, of whom seven were uninformed and untrained, were investigated. The electromyogram of the triangularis sterni was recorded using a concentric needle electrode, and it was compared with the electromyograms of the abdominal (external oblique and rectus abdominis) muscles. The triangularis sterni was usually silent during resting breathing. In contrast, the muscle was invariably activated during expiration from functional residual capacity, expulsive maneuvers, “belly-in” isovolume maneuvers, static head flexion and trunk rotation, and spontaneous events such as speech, coughing, and laughter. When three trained subjects expired voluntarily with considerable recruitment of the triangularis sterni and no abdominal muscle activity, rib cage volume decreased and abdominal volume increased. These results indicate that unlike in the dog, spontaneous quiet expiration in supine humans is essentially a passive process; the human triangularis sterni, however, is a primary muscle of expiration; and its neural activation is largely coupled with that of the abdominals. The triangularis sterni probably contributes to the deflation of the rib cage during active expiration.

scholarly journals Comparison of sagittal spinal curvatures and pelvic tilt in highly trained athletes from different sport disciplines

Kinesiology ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 109-116 ◽  
Author(s):  
Pedro A. López-Miñarro ◽  
Jose M. Muyor
Keyword(s):  
Thoracic Kyphosis ◽  
Pelvic Tilt ◽  
Trunk Flexion ◽  
Young Athletes ◽  
Spinal Curvatures ◽  
Tennis Players ◽  
Sport Training ◽  
Anterior Pelvic Tilt

The aim of this study was to compare the thoracic and lumbar curvatures and pelvic tilt in relaxed standing and maximal trunk flexion among highly-trained young athletes from three different sports disciplines. Thirty-two male canoeists, 30 male kayakers and 24 male tennis players were recruited for the study. The Spinal Mouse® system was used to measure the thoracic and lumbar sagittal spinal curvatures and pelvic tilt in relaxed standing and maximal trunk flexion in sitting with flexed (McRae &amp; Wright test) and extended knees (sit-and-reach test). Significant differences were found in maximal trunk flexion tests among athletes. Kayakers and canoeists showed increased anterior pelvic tilt compared to tennis players in the McRae &amp; Wright (p&lt;.01) and decreased posterior pelvic tilt in the sit-and-reach (p&lt;.001) tests; however, canoeists had increased posterior pelvic tilt compared to kayakers in the sit-and-reach test (p&lt;.01). Canoeists had increased thoracic kyphosis curvature compared to kayakers (p&lt;.01) and tennis players (p&lt;.001) in the sit-and-reach test. Spinal sagittal curvatures and pelvic tilt in relaxed standing did not show significant differences. In&nbsp;conclusion, specific sport training may be associated with adaptations in the sagittal spinal curvatures and pelvic tilt when maximal trunk flexion positions are performed.

Expiratory muscle activity in the awake and sleeping human during lung inflation and hypercapnia

1992 ◽  
Vol 72 (3) ◽  
pp. 881-887 ◽  
Author(s):  
Y. Wakai ◽  
M. M. Welsh ◽  
A. M. Leevers ◽  
J. D. Road
Keyword(s):  
Lung Volume ◽  
Muscle Activity ◽  
Ventilatory Threshold ◽  
Minute Ventilation ◽  
Abdominal Muscle ◽  
Transversus Abdominis ◽  
Abdominal Muscles ◽  
Lung Inflation ◽  
Expiratory Muscle ◽  
Intramuscular Electrodes

Expiratory muscle activity has been shown to occur in awake humans during lung inflation; however, whether this activity is dependent on consciousness is unclear. Therefore we measured abdominal muscle electromyograms (intramuscular electrodes) in 13 subjects studied in the supine position during wakefulness and non-rapid-eye-movement sleep. Lung inflation was produced by nasal continuous positive airway pressure (CPAP). CPAP at 10–15 cmH2O produced phasic expiratory activity in two subjects during wakefulness but produced no activity in any subject during sleep. During sleep, CPAP to 15 cmH2O increased lung volume by 1,260 +/- 215 (SE) ml, but there was no change in minute ventilation. The ventilatory threshold at which phasic abdominal muscle activity was first recorded during hypercapnia was 10.3 +/- 1.1 l/min while awake and 13.8 +/- 1 l/min while asleep (P less than 0.05). Higher lung volumes reduced the threshold for abdominal muscle recruitment during hypercapnia. We conclude that lung inflation alone over the range that we studied does not alter ventilation or produce recruitment of the abdominal muscles in sleeping humans. The internal oblique and transversus abdominis are activated at a lower ventilatory threshold during hypercapnia, and this activation is influenced by state and lung volume.

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