Relationship between Whole Body BMD and Muscle Strength in Population Parameter with Aged Master Athletes

2009 ◽  
Vol 38 ◽  
pp. 1021-1031
Author(s):  
Youn Soo Jung ◽  
Hyun Ok Oh ◽  
R. A. Wiswell
Keyword(s):  
Muscle Strength ◽  
Whole Body ◽  
Population Parameter ◽  
Master Athletes

Stability as a constraint in sagittal plane human force exertion modeling

1998 ◽  
Vol 1 (1) ◽  
pp. 23-39
Author(s):  
Carter J. Kerk ◽  
Don B. Chaffin ◽  
W. Monroe Keyserling
Keyword(s):  
Muscle Strength ◽  
Ankle Joint ◽  
Coefficient Of Friction ◽  
Sagittal Plane ◽  
Biomechanical Model ◽  
Whole Body ◽  
The Stability ◽  
Joint Center ◽  
Static Conditions ◽  
Stability Limits

The stability constraints of a two-dimensional static human force exertion capability model (2DHFEC) were evaluated with subjects of varying anthropometry and strength capabilities performing manual exertions. The biomechanical model comprehensively estimated human force exertion capability under sagittally symmetric static conditions using constraints from three classes: stability, joint muscle strength, and coefficient of friction. Experimental results showed the concept of stability must be considered with joint muscle strength capability and coefficient of friction in predicting hand force exertion capability. Information was gained concerning foot modeling parameters as they affect whole-body stability. Findings indicated that stability limits should be placed approximately 37 % the ankle joint center to the posterior-most point of the foot and 130 % the distance from the ankle joint center to the maximal medial protuberance (the ball of the foot). 2DHFEC provided improvements over existing models, especially where horizontal push/pull forces create balance concerns.

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.

scholarly journals Effects of whole-body vibration on quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic cerebral palsy: a randomized controlled study

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Rania G. Hegazy ◽  
Amr Almaz Abdel-aziem ◽  
Eman I. El Hadidy ◽  
Yosra M. Ali
Keyword(s):  
Cerebral Palsy ◽  
Physical Therapy ◽  
Muscle Strength ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Controlled Study ◽  
Control Group ◽  
Hamstring Muscle ◽  
Post Intervention ◽  
Body Vibration

Abstract Background Hemiplegic cerebral palsy (CP) enormously affects the quadriceps and hamstring muscles. It causes weakness in the affected lower-extremity muscles in addition to muscle imbalance and inadequate power production, especially in the ankle plantar-flexor and knee extensor muscles. It also causes anomalous delayed myoelectrical action of the medial hamstring. A whole-body vibration (WBV) exercise can diminish muscle spasticity and improve walking speed, muscle strength, and gross motor function without causing unfavorable impacts in adults suffering from CP. Thus, the aim of this study is to investigate the impacts of WBV training associated with conventional physical therapy on the quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic CP. Results The post-intervention values of the quadriceps and hamstring muscle force, endurance, and power were significantly higher than the pre-intervention values for both groups (p = 0.001). The post-intervention values of the study group were significantly higher than the control group (quadriceps force, p = 0.015; hamstring force, p = 0.030; endurance, p = 0.025; power, p = 0.014). Conclusion The 8 weeks of WBV training that was added to traditional physical therapy was more successful in improving the quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic CP when compared to traditional physical therapy alone.

scholarly journals A single whole body vibration session influences quadriceps muscle strength, functional mobility and balance of elderly with osteopenia and/or osteoporosis? Pragmatic clinical trial

2019 ◽  
Vol 18 (1) ◽  
pp. 73-80
Author(s):  
Luanda Alves Xavier Ramos ◽  
François Talles Medeiros Rodrigues ◽  
Lívia Shirahige ◽  
Maria de Fátima Alcântara Barros ◽  
Antônio Geraldo Cidrão de Carvalho ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Muscle Strength ◽  
Whole Body Vibration ◽  
Quadriceps Muscle ◽  
Functional Mobility ◽  
Whole Body ◽  
Pragmatic Clinical Trial ◽  
Body Vibration ◽  
Quadriceps Muscle Strength

scholarly journals Whole-body vibration as a modality for the rehabilitation of peripheral neuropathies: implications for cancer survivors suffering from chemotherapy-induced peripheral neuropathy

2015 ◽  
Author(s):  
Anna L.J. Verhulst ◽  
Hans H.C.M. Savelberg ◽  
Gerard Vreugdenhil ◽  
Massimo Mischi ◽  
Goof Schep
Keyword(s):  
Neuropathic Pain ◽  
Peripheral Neuropathy ◽  
Muscle Strength ◽  
Cancer Survivors ◽  
Methodological Quality ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Peripheral Neuropathies ◽  
Body Vibration

The objective was to study the effect of whole-body vibration (WBV) on strength, balance and pain in patients with peripheral neuropathies and to consider its significance for the rehabilitation of patients suffering from chemotherapy-induced peripheral neuropathy (CIPN). Using a broad search strategy, PubMed was searched for clinical trials on WBV interventions aimed at improving strength, balance or pain in patients with peripheral neuropathies, which were published in English until 5th June 2014. The search was performed by the first author and generated a total of 505 results, which yielded 5 articles that met the inclusion criteria, being studies: i) published in English; ii) involving adult human subjects’ peripheral neuropathies; iii) evaluating the effect of WBV as a therapeutic intervention; and iv) reporting findings for at least one of the following outcomes: strength, balance or pain. Methodological quality of included studies was assessed independently by first and second author, using the physiotherapy evidence database scale. The overall methodological quality of included studies was low. Two studies found a beneficial effect of WBV on neuropathic pain, but another study failed to find the same effect. One study found significant improvements in both muscle strength and balance, while another study found improvements only in some, but not all, of the applied tests to measure muscle strength and balance. The results of this literature search suggest insufficient evidence to assess the effectiveness for the effects of WBV on neuropathic pain, muscle strength and balance in patients with peripheral neuropathies. More high-quality trials are needed to guide the optimization of rehabilitation programs for cancer survivors with CIPN in particular.

scholarly journals Efecto de un programa de acondicionamiento físico supervisado virtualmente sobre la condición física y el estrés percibido en docentes universitarios durante el confinamiento por COVID-19

2022 ◽  
Vol 11 ◽  
pp. 9
Author(s):  
Alejandro Manito Quintero ◽  
Yaira Barranco Ruiz
Keyword(s):  
Muscle Strength ◽  
Physical Fitness ◽  
Perceived Stress ◽  
Whole Body ◽  
Effective Strategy ◽  
Post Intervention ◽  
Fitness Program ◽  
University Teachers ◽  
General Physical

The objective of this study was to analyze the effect of a virtually supervised fitness program on physical fitness and perceived stress in university teachers during lockdown due to COVID-19. A total of 15 university teachers participated in a virtual fitness program based on new fitness trends (4-weeks / 2-days / week / 45-minutes / session) during COVID-19 lockdown. Perceived physical fitness using the International-Fitness-Scale (IFiS) and perceived stress using the Perceived-Stress-Questionnaire (PSQ-30) were evaluated pre and post intervention. The virtual fitness program significantly improved the perception of general physical fitness (p = 0.011) and muscle strength (p = 0.024), and generated a significant decrease in the perception of stress (p <0.001). A virtually supervised fitness program based on the “whole-body HIIT” fitness trend could be an effective strategy to ensure healthy levels of physical fitness and stress in university teachers during confinement situations. El objetivo de este estudio fue analizar el efecto de un programa de acondicionamiento físico supervisado virtualmente sobre la condición física y el estrés percibido en docentes universitarios durante la situación de confinamiento por COVID-19. Un total de 15 docentes universitarios participaron un programa de acondicionamiento físico virtual basado en nuevas tendencias fitness (4-semanas/2-días/semana/45-minutos/sesión) durante el confinamiento por COVID-19. La condición física percibida mediante la International-Fitness-Scale (IFiS) y el estrés percibido mediante el Perceived-Stress-Questionnaire (PSQ-30) fueron evaluados pre y post intervención. El programa de acondicionamiento físico virtual mejoró significativamente la percepción de la condición física general (p=0,011) y de la fuerza muscular (p=0,024), y generó una disminución significativa de la percepción de estrés (p<0.001). Un programa de acondicionamiento físico supervisado virtualmente basado en la tendencia fitness “HIIT whole-body” podría ser una estrategia eficaz para garantizar niveles saludables de condición física y estrés en docentes universitarios durante situaciones de confinamiento.

scholarly journals Instrumental diagnosis of osteosarcopenia in diagrams and tables

2021 ◽  
pp. 358-364
Author(s):  
A. V. Naumov ◽  
D. V. Demenok ◽  
Yu. S. Onuchina ◽  
N. O. Khovasova ◽  
V. I. Moroz ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Physical Performance ◽  
Assessment Tool ◽  
Mass Function ◽  
Dual Energy ◽  
Whole Body ◽  
Mineral Density ◽  
X Ray ◽  
Fracture Risk Assessment Tool ◽  
History Of

Osteoporosis and sarcopenia are age-associated diseases of the musculoskeletal system. Osteosarcopenia, the presence of osteopenia/osteoporosis and sarcopenia. The prevalence of osteosarcopenia in older adults with failing was 37% and associated with higher rate of death. Diagnosis of osteosarcopenia consists of describing medical history of fractures, providing x-ray of the spine (if it is needed) and bone densitometry, calculation of Fracture Risk Assessment Tool (FRAX), evaluating muscle strength, mass, function. The most common exam which is used to measure bone mineral density (BMD) is dual-energy x-ray absorptiometry (DXA or DEXA). Screening using the FRAX is recommended in all postmenopausal women and mеn over 50 in order to identify individuals with high probability of fractures. It is recommended to diagnose osteoporosis in patients with fragility fracture of large bones of the skeleton. Diagnosis of sarcopenia is consist of measures for three parameters: muscle strength, muscle quantity/quality and physical performance as an indicator of severity. Muscle strength can be measured with carpal dynamometry. Muscle mass can be evaluated dual-energy X-ray absorptiometry (program «Whole body»). Muscle function can be evaluated with short physical performance battery (SPPB) tests. In this article described algorithm of diagnosis of osteosarcopenia.

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