Effect on Improvement of Muscle Strength Imbalance according to Load Deviation Pattern of Left and Right Arms in Upper Limbs

2012 ◽  
Vol 29 (9) ◽  
pp. 1026-1034 ◽  
Author(s):  
Seung-Rok Kang ◽  
Shin-Bae Seo ◽  
Gu-Young Jeong ◽  
Jong-Jin Bae ◽  
Chang-Ho Yu ◽  
...  
2021 ◽  
pp. 1-10
Author(s):  
Douglas Rafael da Rosa Pinheiro ◽  
Maria Eduarda Parcianello Cabeleira ◽  
Luigi Antonio da Campo ◽  
Laís Andrielli Ferreira Gattino ◽  
Kellen Sábio de Souza ◽  
...  

BACKGROUND: Studies demonstrate the benefits of upper limbs cycle ergometer (ULCE) in subacute and chronic stroke subjects, but the literature still needs to explore the acute phase of the disease. OBJECTIVE: Verify the effects of ULCE on muscular strength, trunk control and independence of post-stroke subjects in hospital acute phase. METHODS: In this randomized clinical trial participants were allocated into two groups. The control group (CG) performed two daily sessions of conventional physiotherapy, while the intervention group (IG) had one daily session of conventional physiotherapy and one of ULCE. The interventions were carried out for 20 minutes for five days. Both groups were assessed before and after the treatment for upper limbs strength by manual dynamometer, trunk control by Trunk Impairment Scale and level of independence by the Modified Rankin Scale. RESULTS: Twenty subjects with mean ages of 63.5±4.5 were enrolled. There was a significant intra-group difference of palmar grip, shoulder abductors, elbow flexor and wrist extensor strength, trunk control and functional independence only in IG. Inter-group difference for all variables showed superiority in IG. CONCLUSIONS: ULCE is an effective device for increasing muscle strength, trunk control and consequently improving the independence of post-stroke subjects in the acute hospital phase.


2021 ◽  
pp. 109980042110502
Author(s):  
Zhan Liang ◽  
Hilary Yip ◽  
Kimberly Sena Moore ◽  
Tanira Ferreira ◽  
Ming Ji ◽  
...  

Objective The objective of this study was to evaluate effects of a self-managed music-guided exercise intervention on muscle strength among intensive care unit (ICU) survivors. Methods We used a two-arm randomized-controlled trial. Following ICU discharge, eligible participants were assigned to one of two groups: music group ( n = 13) or active control group ( n = 13). The music group was taught to self-manage upper and lower extremity exercise movements by listening to an individualized music-guided playlist twice daily for 5 days. The active control group was provided an exercise brochure and advised to perform the same exercises at the same intervals. Dynamometers were used to measure muscle strength. T-tests and Weighted GEE models were used for testing the intervention effect between groups. Results Twenty-six subjects were enrolled. The mean age was 62.8 ( SD = 13.8), 53.8% were male, 65.4% were Caucasian, and the mean APACHE severity of illness score was 59 ( SD = 23.4). Reasons for ICU admission were mainly cardiac and medical. The music group showed significant improvements in handgrip, plantar flexion, leg extension, elbow flexion, and shoulder adduction strengths on left and right sides. Additionally, left and right leg extensor and left plantar flexor strengths showed significant post-differences, and small to moderately large effect sizes, between the music group and control group. Conclusion These findings suggest that a music-guided exercise intervention has the potential to improve muscle strength in ICU survivors and prevent further post-ICU deterioration in ICU survivors. Future trials should build upon these preliminary findings.


2013 ◽  
Vol 5 (1) ◽  
pp. 65-71
Author(s):  
Michał Wietrzyński ◽  
Joanna Mazur-Różycka ◽  
Jan Gajewski ◽  
Radosław Michalski ◽  
Sebastian Różycki ◽  
...  

Summary Study aim: To determine and compare the muscle strength profile and muscle strength symmetry of kayakers and canoeists. Material and methods: A total of 36 male participants participated in the study, including 25 kayakers and 9 canoeists. Measurements of maximum muscle torque were taken under static conditions for 10 muscle groups: flexors and extensors of the elbow, shoulder, knee, hip, and trunk. Muscle torque was allometrically scaled by body mass. To determine the muscle strength profiles of athletes in both disciplines, residual analysis was used. Two methods were utilized to assess and compare the muscle strength symmetry between left and right limbs. The first one is known as intraclass correlation coefficient (ICC). The second one is an asymmetry coefficient proposed by authors. Results: The study showed that kayakers obtained lower rates of asymmetry indicators than canoeists in most muscle groups. An overall asymmetry coefficient amounted to 0.77 ± 0.20 and 0.99 ± 0.31 (p < 0.05) for kayakers and canoeists, respectively. Moreover, it was observed that the kayakers and canoeists had similar strength profile. The symmetry assessment of maximum muscle torque corresponds to the characteristics of the studied disciplines. Conclusions: The intraclass correlation coefficient is recommended as a measure of strength symmetry for muscle groups comparisons. The asymmetry coefficient is recommended for comparison of individuals.


2009 ◽  
Vol 10 (3) ◽  
pp. 192-198 ◽  
Author(s):  
Edmundo I. Cabrera Fischer ◽  
Daniel Bia ◽  
Rodolfo Valtuille ◽  
Sebastián Graf ◽  
Cintia Galli ◽  
...  

Background Vascular access (VA) dysfunction is a common cause of hospitalization in chronically hemodialyzed patients (CHP) limiting the improvement in health and has been largely studied in order to decrease the morbidity events that involves both the artery and the vein used in the construction of the fistula. In parallel, patients in end-stage renal failure show an increase in arterial stiffness. Aim The aims of this work were: (a) to evaluate arterial stiffness through pulse wave velocity (PWV) measurements in the carotid-brachial pathway where the arteriovenous fistulae (AVF) was constructed, and (b) to determine possible differences in arterial stiffness between the carotid-brachial pathway with and without VA. Methods PWV, clinical and biochemical parameters were measured in 38 CHP. PWV was obtained in the carotid-femoral, and in the left and right carotid-brachial pathway. Results Carotid-brachial PWV determination in upper limbs with AVF (10.07 ± 2.43 m/s) showed significantly lower values than those observed in the contra-lateral arm without VA (11.55 ± 2.27 m/s). Curiously, the PWV value observed in arms with an AVF was significantly lower in diabetic than in non-diabetic hemodialyzed patients (NDHP) (8.00 ± 2.86 m/s and 10.38 ± 2.33 m/s; respectively). Measurements of PWV in the carotid-femoral pathway in CHP showed a mean value of 14.09 ± 3.12 m/s. Carotid-femoral PWV in NDHP (14.06 ± 2.44 m/s) was significantly lower than that observed in the diabetic patients (16.87 ± 3.42 m/s). Conclusions Carotid-brachial PWV values obtained in the upper limbs, in which VAs were constructed, were significantly lower than that measured in intact arteries in the contra-lateral pathway in CHP.


2018 ◽  
Vol 1 (80) ◽  
Author(s):  
Ludovic Seifert ◽  
Leo Wattebled ◽  
Maxime L’Hermette ◽  
Romain Herault

Research background and hypothesis. Ice climbers determine their own ascent paths by creating holes with their crampons and ice tools. The coupling of upper and lower limbs thus emerges from the icefall environment without prescriptions for one mode of coordination. Research aim. The aim of this study was to analyse the upper / lower limb coordination of ice climbers of different skill level and to explore how the environmental constraint (ice fall shape) is used by the climbers to adapt their motor behaviour.Research methods. Six elite ice climbers and fi ve beginners climbed a 30m icefall, respectively in grade 5 / 5+ and grade 4. Frontal camera videotaped the fi rst 15m of the ascent, then the left and right ice tools and the left and right crampons were digitalised in order to analyse the upper limbs coupling, the lower limbs coupling and the upper / lower limb coordination. Research results. The results indicated that in-phase mode of upper / lower limb coordination was the main attractor for both groups. However, elite climbers showed greater variability in their behaviour, exploring larger range of upper and lower angles (particularly vertical and crossed positions) and types of movement (ice tool swinging and ice hole hooking). Discussion and conclusions. It was concluded that holes in ice fall, and more globally ice fall shape, were affordances that induced variable upper / lower limb coordination in elite climbers, whereas beginners used a basic and stable motor organization in order to maintain body equilibrium.Keywords: upper / lower limb coordination, environmental constrains, types of movement.


1984 ◽  
Vol 47 (5) ◽  
pp. 147-150 ◽  
Author(s):  
Ann M Hamilton ◽  
Surya K Shah

Hand dysfunction has been reported to be present in myelomeningocele children, yet the type, extent, and cause of such dysfunction have remained unclear. This study was undertaken to discover whether motor dysfunction was present in the upper limbs of children with the diagnosis spina bifida myelomeningocele with lesions below the spinal level T4. Tests of manual muscle strength and grip strength indicated that spina bifida children have inferior motor function when compared with a control group of individually matched normal children. When the spina bifida group was divided on the basis of presence or absence of hydrocephalus it was apparent that the hydrocephalic children had poorer muscle power. The non-hydrocephalic children, however, did not have normal motor function. Thus the level of the lesion, and the presence of hydrocephalus, could not be identified as the prime cause of hand dysfunction discovered in the sample studied.


2016 ◽  
Vol 30 (2) ◽  
pp. 49-61
Author(s):  
Andrzej Kwolek ◽  
Jolanta Zwolińska ◽  
Monika Chojnacka ◽  
Mariusz Drużbicki

Abstract Introduction: Magnetic field is used in therapies designed for patients with rheumatic disorders such as rheumatoid arthritis (RA). The question of selecting adequate treatment parameters to obtain optimal therapeutic effects still needs to be answered. The purpose of the study was to assess the influence of magnetic field, depending on its nature, on problems and dysfunctions experienced in upper limbs by patients with RA. Materials and methods: The study group included 14 patients with RA (10 females, 4 males), referred for magnetotherapy to be administered in selected areas of upper limbs. On average, the subjects were 57 years old, and the mean duration of the disorder was 13 years. Magnetotherapy was administered with the use of static or pulsed magnetic field. The patients were examined for the level of disorder, disability level (HAQ-20), severity and duration of morning stiffness, pain intensity (VAS scale), hand volume, swelling and functional capacity. The examinations were carried out before and after a series of ten magnetotherapy treatments. Results: All the patients reported decreased severity and shorter duration of morning stiffness, reduced level of pain and general disability. There was no statistically significant difference between the groups treated with static and pulsed magnetic field. Statistically significant differences between the groups treated with static and pulsed field were observed in reduced swelling, improved range of motion and muscle strength in the upper limb. The study revealed better effects of pulsed field therapy. Conclusions: When administered to areas within upper limbs in patients with RA, pulsed magnetic field produced better effects related to the reduction of swelling as well as improving range of motion and muscle strength in the relevant area of the body compared to static field. The findings did not confirm the relationship between the type of magnetic field and its therapeutic effectiveness in reducing pain, morning stiffness and disability level.


2011 ◽  
Vol 26 (8) ◽  
pp. 1759-1766 ◽  
Author(s):  
M Loreto Reyes ◽  
Marta Hernández ◽  
Luz J Holmgren ◽  
Enrique Sanhueza ◽  
Raúl G Escobar

1971 ◽  
Vol 32 (2) ◽  
pp. 639-644 ◽  
Author(s):  
Leon Cohen

Synchrony of bimanual wrist movements by 12 normal Ss was compared when homologous muscles (e.g., left and right wrist flexors) and when non-homologous muscles (e.g., left flexors and right extensors) were simultaneously active. Movements of the two limbs were less synchronous and more variable in the non-homologous condition. These data imply the existence of an unitary coupling mechanism which facilitates simultaneous action of homologous muscles of the upper limbs.


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