Improvement in knee extension strength through training by means of combined electrical stimulation and voluntary muscle contraction

The Tohoku Journal of Experimental Medicine
Toshihiro IwasakiJeffrey R Basford

Abstract

Weight training (WT) is the most common method of maintaining and increasing muscle strength. WT, however, is not always useful as it requires the external resistance and stabilization. We have developed a "hybrid training" (HYB) approach that avoids these problems by using electrically stimulated muscles to provide resistance to the motion of a muscle undergoing training. Here we report the efficacy of HYB compared with conventional WT for increasing the muscle strength around the knee at both slow and fast joint speeds (at 30 and 180 degrees /sec). Two matched groups, each of 8 healthy men aged 22 years, exercised 3 times/week for six weeks. Both groups showed significantly increased strength in concentric torque at 30 degrees /sec (HYB +28%, WT +33%) and at 180 degrees /sec (HYB +33%, WT +38%), and also in eccentric torque at 30 degrees /sec (HYB +25%, WT +24%) and at 180 degrees /sec (HYB +19%, WT +30%) (p < 0.001). HYB is comparable with WT exercising with the exception of high-speed contractions, while HYB has a clear advantage in not needing external resistance equipment or stabilization. HYB is therefore considered a useful approach for strengthening muscles when a person is restricted to bed rest or during space flight.

Associated Clinical Trials

Citations

Feb 26, 2008·European Journal of Applied Physiology·Jerrold PetrofskyMichael Laymon
May 26, 2011·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Takumi KawaguchiMichio Sata
Jan 5, 2010·The Tohoku Journal of Experimental Medicine·Kazuhiro YoshimitsuKensei Nagata
Mar 12, 2008·The Kurume Medical Journal·Takeshi NagoJeffrey R Basford
Jul 23, 2011·The Kurume Medical Journal·Toru MatsugakiKensei Nagata
Dec 15, 2012·World Journal of Gastroenterology : WJG·Carmine Finelli, Giovanni Tarantino
Nov 3, 2015·The Tohoku Journal of Experimental Medicine·Masayuki OmotoNaoto Shiba
Apr 12, 2016·Journal of Physical Therapy Science·You-Sin KimMin-Seong Ha
Jul 8, 2008·Annales de réadaptation et de médecine physique : revue scientifique de la Société française de rééducation fonctionnelle de réadaptation et de médecine physique·P DehailM Barat
Apr 11, 2008·Medical Engineering & Physics·Jerrold Petrofsky
Nov 22, 2013·Journal of Physical Therapy Science·Yoo Jung KwonKyoung Kim
Aug 3, 2014·Magnetic Resonance Imaging·Yoshikazu OkamotoManabu Minami
Feb 18, 2017·Journal of Physical Therapy Science·Jeong-Il KangYoung-Jun Moon
Jan 18, 2008·Revista de saúde pública·F M SantosE M Trindade-Filho
Jul 3, 2020·International Journal of Environmental Research and Public Health·Soul CheonEunwook Chang
Jan 2, 2021·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Koji HaraNaoto Shiba
Jun 18, 2021·The Kurume Medical Journal·Masafumi BekkiNaoto Shiba

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.