Document Detail


Functional capacity, skeletal muscle strength, and skeletal muscle volume in patients with myocardial infarction.
MedLine Citation:
PMID:  17106143     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Previous studies have reported that skeletal muscle strength is closely related to exercise capacity in patients with myocardial infarction (MI). However, none of the previous studies have fully investigated the correlation between exercise capacity and the skeletal muscle volume (MV). Seventy patients with MI underwent symptom-limited cardiopulmonary exercise testing using a treadmill. The MV was evaluated by electrical impedance analysis and the maximal knee extension strength (Peak torque: PT) was measured by a Biodex. The subjects were divided into 2 groups according to the MV (group L, MV < 22 kg; group H, MV > or = 22 kg). The PT was positively and significantly correlated with the peak V(.)O(2) in both the L and H groups (r = 0.70 versus r = 0.71). The MV of the lower limbs was positively correlated with the peak V(.)O(2) in the L group (r = 0.57), but not in the H group. The lower limb MV was positively and significantly correlated with PT in the L group (r = 0.48), but not in the H group. The exercise capacity of patients with MI is thought to depend on both the strength and volume of the skeletal muscle. In MI patients with high muscle volume, exercise capacity was determined by skeletal muscle strength alone.
Authors:
Keisuke Kida; Naohiko Osada; Yoshihiro J Akashi; Hiromitsu Sekizuka; Masaki Izumo; Yuki Ishibashi; Takashi Shimozato; Akio Hayashi; Kihei Yoneyama; Eiji Takahashi; Kengo Suzuki; Masachika Tamura; Koji Inoue; Kazuto Omiya; Fumihiko Miyake
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International heart journal     Volume:  47     ISSN:  1349-2365     ISO Abbreviation:  -     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-11-19     Completed Date:  2007-10-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101244240     Medline TA:  Int Heart J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  727-38     Citation Subset:  IM    
Affiliation:
Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan.
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MeSH Terms
Descriptor/Qualifier:
Electric Impedance
Exercise Test
Exercise Tolerance / physiology*
Female
Humans
Male
Middle Aged
Muscle Strength / physiology*
Muscle, Skeletal / anatomy & histology*,  physiology*
Myocardial Infarction / physiopathology*
Organ Size

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