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Thursday, July 23, 2020 | History

3 edition of Alterations in human skeletal muscle properties through isokinetic cycle ergometry found in the catalog.

Alterations in human skeletal muscle properties through isokinetic cycle ergometry

Alterations in human skeletal muscle properties through isokinetic cycle ergometry

  • 149 Want to read
  • 19 Currently reading

Published .
Written in English

    Subjects:
  • Muscles,
  • Exercise -- Physiological aspects,
  • Dynamometer

  • Edition Notes

    Statementby Charles E. Meacci
    The Physical Object
    FormatMicroform
    Paginationviii, 134 leaves
    Number of Pages134
    ID Numbers
    Open LibraryOL14413385M

    The primary goal of this study was to determine the effects of prolonged space flight (∼ days) on the structure and function of slow and fast fibres in human skeletal muscle. Subjects. The present study used previously collected muscle samples from two larger studies. In study 1, 24 healthy males volunteered to participate (age: RES, ± yr; END, ± yr).Subjects were assigned to an acute exercise protocol based on their training history, either high-intensity eccentric contractions (RES; n = 12) or high-intensity cycle ergometry to .

    Trishan Gajanand, Sonia Conde Alonso, Joyce S. Ramos, Jean-Philippe Antonietti, Fabio Borrani, Alterations to neuromuscular properties of skeletal muscle are temporally dissociated from the oxygen uptake slow component, Scientific Reports, /s, 10, 1, (). Aging is associated with a reduction in skeletal muscle mass—sarcopenia—the etiology of which is multifactorial. One mechanism is that aging has, as one of its hallmarks, a reduced sensitivity of skeletal muscle to the normally potent anabolic effects of protein feeding and resistance exercise, and to the anticatabolic effects of insulin, the combination of which has been termed.

      Cycle training is widely performed as a major part of any exercise program seeking to improve aerobic capacity and cardiovascular health. However, the effect of cycle training on muscle size and strength gain still requires further insight, even though it is known that professional cyclists display larger muscle size compared to controls. REFERENCES. 1 Adams GR, Hather BM, Dudley GA. Effect of short-term unweighting on human skeletal muscle strength and size. Aviat Space Environ Med –, PubMed Google Scholar; 2 Alkner BA, Tesch PA. Knee extensor and plantar flexor muscle size and function following 90 days of bed rest with or without resistance exercise.


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Alterations in human skeletal muscle properties through isokinetic cycle ergometry Download PDF EPUB FB2

Get this from a library. Alterations in human skeletal muscle properties through isokinetic cycle ergometry. [Charles E Meacci].

Also in an in vivo study using cycle ergometry, If alterations to neuromuscular properties are not Ramos, J.S. et al. Alterations to neuromuscular properties of skeletal muscle Author: Trishan Gajanand, Trishan Gajanand, Sonia Conde Alonso, Joyce S.

Ramos, Jean Philippe Antonietti, Fa. Results. There were more (P muscle fibers coexpressing two or more myosin heavy chains in the HF patients (30% ± 7%) compared to the control subjects (13% ± 2%).IGF-1 and IGFBP-5 expression was fivefold and fold lower in patients with in HF compared to control subjects (P muscle Cited by: Summary.

To investigate the influence of strength training on the mechanical characteristics of human skeletal muscle, 14 male subjects went through training of combined heavy concentric and eccentric contractions three times a week for 16 by: The book first addresses the mechanical behavior of single muscles—from the sarcomere level up to the entire muscle.

The architecture of human muscle, the mechanical properties of tendons and passive muscles, the biomechanics of active muscles, and the force transmission and shock absorption aspects of muscle are explored in detail.

Skeletal muscle architecture is the structural property of whole muscles that dominates their function. This review describes the basic architectural properties of human upper and lower extremity muscles.

The designs of various muscle groups in humans and other species are analyzed from the point of view of optimizing function.

These data suggest that changes to the exercise countermeasure program are required to more fully protect human skeletal muscle while crewmembers are in space for extended periods. The in-flight exercise program performed among the crewmembers we tested had a large disparity in volume and mode of activity that was impacted by operational constraints outside.

contractile forces generated in skeletal muscle tissue through the tendons to the skeleton. Thus, age-related alterations in mobility are not only a function of changing skeletal muscle contractile properties but also of the mechanical properties of the tendons which operate in series with the muscle.

A loss in tendon stiffness with age. Skeletal muscle is one of the three types of muscles in the human body- the others being visceral and cardiac muscles. In this lesson, skeletal muscles, its definition, structure, properties, functions, and types are explained in an easy and detailed manner.

Skeletal muscle is a muscle tissue that is attached to the bones and is involved in the. The extent of skeletal muscle power loss with age has been confirmed by studies of cycle ergometry in which the cycle velocity at maximal power was measured.

In a study of human volunteers ranging in age from 20 to 90 years, Kostka et al. found that velocity at maximal power decreased by roughly 18% between ages 20–29 and 50–59 and by a further.

The interests and limits of the different methods and protocols of maximal (anaerobic) power (P max) assessment are reviewed: single all-out tests versus force-velocity tests, isokinetic ergometers versus friction-loaded ergometers, measure of P max during the acceleration phase or at peak effects of training, athletic practice, diet and.

The steady-state and small-scale dynamic mechanical properties of human rectus abdominis and intercostal muscle have been investigated by testing small biopsies in vitro, taken during normal surgery. Skeletal muscle fibers are organized into groups called fascicles.

Blood vessels and nerves enter the connective tissue and branch in the cell. Muscles attach to bones directly or through tendons or aponeuroses. Skeletal muscles maintain posture, stabilize bones and joints, control internal movement, and generate heat.

A euglycemic–hyperinsulinemic clamp procedures revealed that glucose uptake was impaired by downhill running but not CON muscle actions from cycle ergometry (which disappeared by 48 h) suggesting that the eccentric-contraction-induced muscle damage was the cause of reduced insulin sensitivity, but there was no relationship with cortisol.

• This study investigated the effects of 7 weeks of sprint training on changes in electrolyte concentrations and acid-base status in arterial and femoral venous blood, during and.

Evaluation of the adolescent’s skeletal muscle is important to understand body movement, especially including those involved in sports. Strength, power and endurance capacity are defined as parameters of skeletal muscle biomechanical properties. The isokinetic dynamometer is an important toll for making this type of evaluation.

The metabolic properties of skeletal muscle are highly adaptive More direct evidence of structural alterations of skeletal muscle in patients with COPD comes from studies at the cellular level.

(, ) and the fact that vitamin E protects human skeletal muscle from damage during surgical ischemia-reperfusion support this theory. We identified significant alterations in exercise trained muscle compared to sedentary controls related to glyoxylate metabolism, citric acid metabolism, and linoleic metabolism (Figure 4).

These findings complement prior studies using targeted metabolomics approaches to determine the metabolic changes in exercise-trained human skeletal muscle. The purpose of this study was to determine the effects of summation of contraction on acceleration signals in human skeletal muscle.

The torque parameters of dorsiflexion and acceleration signals. In rats, slow muscles are more affected than fast muscles and slow fibers more than fast fibers, but this hierarchy does not always apply in human muscles. Muscle mass primarily reflects the amount of contractile proteins, which are manifested ultrastructurally as thick (primarily myosin) and thin (primarily actin) filaments.

The purpose of this study was to compare the effects of warm-up protocols using either whole-body vibration (WBV) or cycle ergometry (CE) on peak torque at 3 different isokinetic. In all there are somewhere between and muscles in the human body, but an exact number is hard.

Many muscles are obscurely small or are sometimes grouped together with similar muscles. Skeletal muscle is found between bones, and uses tendons to connect the epimysium to the periosteum, or outer covering, of bone. The paralyzed vastus lateralis muscle showed significant alterations in skeletal muscle characteristics after the training, indicated by an improvement in total work output (52– kJ; P.