Association of the Type I Collagen alpha1 Sp1 Polymorphism, Bone Density and Upper Limb Muscle Strength in Community-Dwelling Elderly Men

2001 ◽  
Vol 12 (10) ◽  
pp. 895-901 ◽  
Author(s):  
I. Van Pottelbergh ◽  
S. Goemaere ◽  
L. Nuytinck ◽  
A. De Paepe ◽  
J. M. Kaufman
Keyword(s):  
Bone Density ◽  
Muscle Strength ◽  
Upper Limb ◽  
Type I Collagen ◽  
Community Dwelling ◽  
Type I ◽  
Limb Muscle ◽  
Elderly Men

Influence of upper-limb muscle strength on the repeated change of direction ability in international-level wheelchair basketball players

2021 ◽  
pp. 1-17
Author(s):  
Aitor Iturricastillo ◽  
Ibai Garcia-Tabar ◽  
Raul Reina ◽  
Adrian Garcia-Fresneda ◽  
Gerard Carmona ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Upper Limb ◽  
Limb Muscle ◽  
International Level ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Change Of Direction

scholarly journals Effects of different vibration frequencies on muscle strength, bone turnover and walking endurance in chronic stroke

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhenhui Yang ◽  
Tiev Miller ◽  
Zou Xiang ◽  
Marco Y. C. Pang
Keyword(s):  
Muscle Strength ◽  
Bone Turnover ◽  
Intervention Program ◽  
Type I Collagen ◽  
Chronic Stroke ◽  
Medium Effect ◽  
Whole Body ◽  
Type I ◽  
Leg Muscle ◽  
Walking Endurance

AbstractThis randomized controlled trial aimed to evaluate the effects of different whole body vibration (WBV) frequencies on concentric and eccentric leg muscle strength, bone turnover and walking endurance after stroke. The study involved eighty-four individuals with chronic stroke (mean age = 59.7 years, SD = 6.5) with mild to moderate motor impairment (Fugl-Meyer Assessment lower limb motor score: mean = 24.0, SD = 3.5) randomly assigned to either a 20 Hz or 30 Hz WBV intervention program. Both programs involved 3 training sessions per week for 8 weeks. Isokinetic knee concentric and eccentric extension strength, serum level of cross-linked N-telopeptides of type I collagen (NTx), and walking endurance (6-min walk test; 6MWT) were assessed at baseline and post-intervention. An intention-to-treat analysis revealed a significant time effect for all muscle strength outcomes and NTx, but not for 6MWT. The time-by-group interaction was only significant for the paretic eccentric knee extensor work, with a medium effect size (0.44; 95% CI: 0.01, 0.87). Both WBV protocols were effective in improving leg muscle strength and reducing bone resorption. Comparatively greater improvement in paretic eccentric leg strength was observed for the 30 Hz protocol.

Compensatory muscle fiber hypertrophy in elderly men

1992 ◽  
Vol 73 (3) ◽  
pp. 812-816 ◽  
Author(s):  
A. Aniansson ◽  
G. Grimby ◽  
M. Hedberg
Keyword(s):  
Muscle Strength ◽  
Muscle Fiber ◽  
Citrate Synthase ◽  
Biceps Brachii ◽  
Vastus Lateralis ◽  
Cell Mass ◽  
Knee Extension ◽  
Type I ◽  
Type Ii ◽  
Elderly Men

Muscle strength and muscle morphology have been studied three times during a period of 11 yr in nine elderly men. On the last occasion the average age was 80.4 (range 79–82) yr. Body cell mass decreased by 6% and muscle strength for knee extension, measured by means of isometric and concentric isokinetic (30–60 degrees/s) recordings, declined by 25–35% over the 11-yr period. Between 76 and 80 yr of age only the isokinetic strength for 30 degrees/s decreased significantly. Muscle fiber composition in the vastus lateralis did not change between 69 and 76 yr of age, but there was a significant reduction in the proportion of type IIb fibers from 76 to 80 yr. The decrease in type II fiber areas was not significant between 69 and 76 yr of age (as in a larger sample from the same population), but a significant increase in both type I and type II fiber areas was recorded from 76 to 80 yr of age and biceps brachii showed similar tendencies. In the same period, the enzymatic activities of myokinase and lactate dehydrogenase subsided in the vastus lateralis, but there was no change for triose phosphate dehydrogenase, 3-hydroxy-CoA-dehydrogenase, and citrate synthase. The muscle fiber hypertrophy in this group of elderly men with maintained physical activity between 76 and 80 yr of age is interpreted as a compensatory adaptation for the loss of motor units. In addition, the adaptation with respect to oxidative capacities seems to be maintained at this age.

scholarly journals Relationship between the Weight-bearing Index of Lower Limb Muscle Strength and Motor Function in the Community-dwelling Elderly

2016 ◽  
Vol 31 (3) ◽  
pp. 429-433
Author(s):  
Takahiro FUJII ◽  
Tomoaki ISHIKAWA ◽  
Taro FUJIMOTO ◽  
Yasushi MIURA
Keyword(s):  
Muscle Strength ◽  
Motor Function ◽  
Lower Limb ◽  
Weight Bearing ◽  
Community Dwelling ◽  
Lower Limb Muscle ◽  
Limb Muscle

scholarly journals A Relationship between Spinal Deformity and Lower Limb Muscle Strength in Community-Dwelling Elderly Females

2009 ◽  
Vol 24 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Yoshihiro KAI ◽  
Shin MURATA ◽  
Hiroshi OTAO ◽  
Koichi TOMINAGA ◽  
Takeshi MATSUMOTO ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Spinal Deformity ◽  
Lower Limb ◽  
Community Dwelling ◽  
Lower Limb Muscle ◽  
Limb Muscle

scholarly journals Quality of life after mastectomy and its relation with muscle strength of upper limb

2014 ◽  
Vol 21 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Suelen Helena da Silva ◽  
Lydia Christmann Espindola Koetz ◽  
Eduardo Sehnem ◽  
Magali Teresinha Quevedo Grave
Keyword(s):  
Quality Of Life ◽  
Muscle Strength ◽  
Global Health ◽  
Upper Limb ◽  
Functional Performance ◽  
Life Quality ◽  
Radical Mastectomy ◽  
Limb Muscle ◽  
Eortc Qlq

This research transversal, analytical, exploratory and quantitative approach aimed to identify the quality of life of women who have had a mastectomy surgery, relate the results with the strength of the upper limb muscle affected and draw a sociofunctional profile. A total of 10 women participated, from 30 to 60 years old, who underwent to unilateral modified radical mastectomy in a medium-sized hospital in an inner city of Rio Grande do Sul, for at least one year from the date of data collection. The strength of the upper limb muscle was evaluated by manual testing and the handgrip was tested with the dynamometer. A sociofunctional questionnaire was applied and the quality of life data were collected through the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 questionnaire, followed by the module BR-23. The strength had decreased in all muscle groups homolateral to the surgery. The life quality in a global health bases resulted as regular. The main changes found in the functionality were at scales: emotional, cognitive and sexual. Statistically, it was found significance and correlation between physical health and social function (p=0.04; r=0.65), cognition and functional performance (p=0.01; r=0.75), emotional performance and cognition (p=0.005; r=0.9) and between handgrip of the affected limb with the global health (p=0.008; r=0.77). Breast cancer and mastectomy has a direct impact on the upper limb muscle strength, functionality and on life quality of women, in sexual, cognitive and emotional domains, and physiotherapy plays an important role in the rehabilitation and in social rehabilitation of these.

scholarly journals Upper Limb Isokinetic Muscle Strength Predicts the Performance in Cross-Country Sit-Skiing

2021 ◽  
Author(s):  
Chenglin Liu ◽  
Yuan Tian ◽  
Longfeng Zhou ◽  
Zhulin Tian ◽  
Gang Sun ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Upper Limb ◽  
Endurance Performance ◽  
Limb Muscle ◽  
Power Performance ◽  
System A ◽  
Isokinetic Muscle Strength ◽  
Double Poling ◽  
Shoulder Strength ◽  
Cross Country

Abstract Understanding the physical fitness attributes in a sport-specific technical skill is a key to improve the action economy, and thus aerobic endurance performance. The present study was designed to investigate how upper limb muscle strength predicts double poling (DP) power performance in cross-country sit-skiing. A total of 19 female able-bodied college students (age 23.2±0.8 years, BMI 20.4±2.2) were subjected to a 30-s and 3-min DP performance tests using a sit-skiing ergometer. Isokinetic muscle strength by the angular velocity of 30 °/second, 60 °/second, and 120 °/second of the shoulder and elbow extensor/flexor were measured with an ISOMED2000 isokinetic system. A medium correlation was found between DP output power and isokinetic upper limb muscle strength (shoulder strength at all speed, r = 0.39-0.74, p < 0.1). Multiple regressions, which were employed to predict power production in the 30-s and 3-min tests, showed that shoulder extension strength at 60 °/second accounted for 34% of the variation in the 30-s test, and 40% of the variance in the 3-min test.

Design and analysis of EMG system for measuring upper limb muscle strength

2020 ◽  
Author(s):  
Farah M. M. Akram ◽  
Zulkhairi Mohd Yusof ◽  
Md Masum Billah
Keyword(s):  
Muscle Strength ◽  
Upper Limb ◽  
Limb Muscle
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