The effect of unilateral muscle fatigue of hip abductor muscles on balance and functional capacity in community-dwelling older women

2020 ◽  
Vol 91 ◽  
pp. 104222
Author(s):  
Pâmela Precinotto Martins ◽  
Jaqueline Mello Porto ◽  
Flávio Tavares Vieira ◽  
Isabella Ramirez Trimer ◽  
Luana Letícia Capato ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Older Women ◽  
Functional Capacity ◽  
Community Dwelling ◽  
Hip Abductor

A 1-Year Exercise Program for Older Women: Effects on Falls, Injuries, and Physical Performance

1994 ◽  
Vol 2 (2) ◽  
pp. 127-142 ◽  
Author(s):  
Priscilla Gilliam MacRae ◽  
Michael E. Feltner ◽  
Sibylle Reinsch
Keyword(s):  
Older Women ◽  
Exercise Program ◽  
Community Dwelling ◽  
Medical Attention ◽  
Knee Extensors ◽  
Post Intervention ◽  
Hip Abductor ◽  
Gait Abnormalities ◽  
Risk Factors For Falls ◽  
Low Intensity Exercise

This study examined the effects of a 1-year low intensity exercise program in community dwelling older women on falls, injuries, and risk factors for falls such as poor balance, muscular weakness, and gait abnormalities. Eighty older women were assigned to an exercise (Ex,n= 42) or attention control (Co,n= 38) group. During the 1-year study, 36% of the Ex group experienced a fall compared to 45% of the Co group (χ2= 0.22,p≥ 0.05). None of the 10 fallers in the Ex group suffered an injury that required medical attention, compared with 3 of the 14 fallers (21%) in the Co group. Further analyses indicated that the Co group declined significantly in isometric strength of the knee extensors and ankle dorsiflexors while the Ex group did not change significantly across the 1-year study. On measures of hip abductor strength, balance, and gait, the groups were not significantly different from each other pre- to post intervention.

Diagnostic Accuracy of Clinical Tests for the Indirect Assessment of Hip Abductor Muscle Strength in Community-Dwelling Older Women

2020 ◽  
Vol 100 (11) ◽  
pp. 1967-1976
Author(s):  
Jaqueline Mello Porto ◽  
Luciana Mendes Cangussu-Oliveira ◽  
Renato Campos Freire Junior ◽  
Flávio Tavares Vieira ◽  
Pâmela Precinotto Martins ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Older Women ◽  
Characteristic Curve ◽  
Peak Torque ◽  
Community Dwelling ◽  
Abductor Muscle ◽  
Post Test ◽  
Hip Abductor ◽  
Post Test Probability ◽  
Test Probability

Abstract Objective The objective of this study was to determine the accuracy of 3 clinical tests (lateral step [LS], tandem gait [TG], and single-leg stance [SS]) in identifying older women with reduced hip abductor muscle strength and to determine the post-test probability of each test and of their combination in changing the certainty of diagnosis. Methods In this cross-sectional study, a total of 123 older women received clinical testing to obtain the variables LS height, time for TG execution, percentage of errors in TG, and time of permanence on SS and were tested for isometric hip abductor peak torque using an isokinetic dynamometer. Only the dominant lower limb was evaluated. Multiple linear regression analysis with adjustment was performed to determine the association among variables, followed by the receiver operating characteristic curve to identify clinical variables that can discriminate older women with reduced abductor muscle strength. Post-test probability was then calculated based on the receiver operating characteristic curve data. Results Although the 4 clinical variables showed correlation with abductor peak torque, only LS and TG time were able to discriminate reduced abductor muscle strength with low accuracy (area under the curve was between 0.5 and 0.7). However, the combination of LS and TG time increased post-test probability from 47% (prevalence of weakness in the population) to 76% when both tests were positive and reduced it from 47% to 18% when both tests were negative. Conclusion The combination of the LS test and TG time is useful for the indirect assessment of hip abductor strength in community-dwelling older women. Impact Hip abductor muscle strength is extremely important for function in older women. This study presents clinicians with simple, fast, and inexpensive methods for assessing hip abductor muscle strength.

Water-based resistance training program with isolated concentric action improves physical functional capacity and muscular strength in older women

2021 ◽  
Author(s):  
Ana Victoria Costa Freitas ◽  
Inês Amanda Streit ◽  
Josefina Bertoli ◽  
Kayth Andrade Nascimento ◽  
Maria Carolina Oliveira de Sá ◽  
...  
Keyword(s):  
Resistance Training ◽  
Training Program ◽  
Older Women ◽  
Functional Capacity ◽  
Muscular Strength ◽  
Resistance Training Program ◽  
Water Based

Estimations of body fat by anthropometry or bioelectrical impedance differ from those by dual-energy X-ray absorptiometry in prefrail community-dwelling older women

2020 ◽  
Author(s):  
Jessica S M da Silva ◽  
Simone Biesek ◽  
Audrin S Vojciechowski ◽  
Victoria Z C Borba ◽  
Estela I Rabito ◽  
...  
Keyword(s):  
Older Women ◽  
Body Fat ◽  
Bioelectrical Impedance ◽  
Dual Energy ◽  
Community Dwelling ◽  
X Ray

scholarly journals Is Skeletal Muscle Dysfunction a Limiting Factor of Exercise Functional Capacity in Patients with Sickle Cell Disease?

2021 ◽  
Vol 10 (11) ◽  
pp. 2250
Author(s):  
Etienne Gouraud ◽  
Philippe Connes ◽  
Alexandra Gauthier-Vasserot ◽  
Camille Faes ◽  
Salima Merazga ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Sickle Cell Disease ◽  
Muscle Fatigue ◽  
Sickle Cell ◽  
Functional Capacity ◽  
Muscle Dysfunction ◽  
Electromyographic Activity ◽  
Cell Disease ◽  
Step Frequency ◽  
Hemoglobin C

Patients with sickle cell disease (SCD) have reduced functional capacity due to anemia and cardio–respiratory abnormalities. Recent studies also suggest the presence of muscle dysfunction. However, the interaction between exercise capacity and muscle function is currently unknown in SCD. The aim of this study was to explore how muscle dysfunction may explain the reduced functional capacity. Nineteen African healthy subjects (AA), and 24 sickle cell anemia (SS) and 18 sickle cell hemoglobin C (SC) patients were recruited. Maximal isometric torque (Tmax) was measured before and after a self-paced 6-min walk test (6-MWT). Electromyographic activity of the Vastus Lateralis was recorded. The 6-MWT distance was reduced in SS (p < 0.05) and SC (p < 0.01) patients compared to AA subjects. However, Tmax and root mean square value were not modified by the 6-MWT, showing no skeletal muscle fatigue in all groups. In a multiple linear regression model, genotype, step frequency and hematocrit were independent predictors of the 6-MWT distance in SCD patients. Our results suggest that the 6-MWT performance might be primarily explained by anemia and the self-paced step frequency in SCD patients attempting to limit metabolic cost and fatigue, which could explain the absence of muscle fatigue.

Relationship between postural sway on an unstable platform and ankle plantar flexor force steadiness in community-dwelling older women

2021 ◽  
Vol 84 ◽  
pp. 227-231
Author(s):  
Tetsuya Hirono ◽  
Tome Ikezoe ◽  
Momoko Yamagata ◽  
Takehiro Kato ◽  
Misaka Kimura ◽  
...  
Keyword(s):  
Older Women ◽  
Postural Sway ◽  
Community Dwelling ◽  
Plantar Flexor ◽  
Force Steadiness ◽  
Unstable Platform
Sign in / Sign up

Export Citation Format

Share Document