Walking Speed in Patients With First Acute Myocardial Infarction Who Participated in a Supervised Cardiac Rehabilitation Program After Coronary Intervention

Shuhei Yamamoto; Atsuhiko Matsunaga; Kentaro Kamiya; Kazumasa Miida; Yukari Ebina; Kazuki Hotta; Ryosuke Shimizu; Ryota Matsuzawa; Yoshifumi Abe; Masahiko Kimura; Shinobu Shimizu; Hiroyuki Watanabe; Chiharu Noda; Minako Yamaoka-Tojo; Takashi Masuda; Tohru Izumi

doi:10.1536/ihj.53.347

Clinical Studies

Walking Speed in Patients With First Acute Myocardial Infarction Who Participated in a Supervised Cardiac Rehabilitation Program After Coronary Intervention

Shuhei Yamamoto, Atsuhiko Matsunaga, Kentaro Kamiya, Kazumasa Miida, Yukari Ebina, Kazuki Hotta, Ryosuke Shimizu, Ryota Matsuzawa, Yoshifumi Abe, Masahiko Kimura, Shinobu Shimizu, Hiroyuki Watanabe, Chiharu Noda, Minako Yamaoka-Tojo, Takashi Masuda, Tohru Izumi

Author information

Shuhei Yamamoto
Graduate School of Medical Sciences, Kitasato University
Atsuhiko Matsunaga
Graduate School of Medical Sciences, Kitasato University
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Kentaro Kamiya
Graduate School of Medical Sciences, Kitasato University
Cardiovascular Center, Kitasato University Hospital
Kazumasa Miida
Cardiovascular Center, Kitasato University Hospital
Yukari Ebina
Cardiovascular Center, Kitasato University Hospital
Kazuki Hotta
Graduate School of Medical Sciences, Kitasato University
Ryosuke Shimizu
Graduate School of Medical Sciences, Kitasato University
Ryota Matsuzawa
Graduate School of Medical Sciences, Kitasato University
Yoshifumi Abe
Graduate School of Medical Sciences, Kitasato University
Masahiko Kimura
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Shinobu Shimizu
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Hiroyuki Watanabe
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Chiharu Noda
Department of Internal Medicine and Cardiology, School of Medicine, Kitasato University
Minako Yamaoka-Tojo
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Takashi Masuda
Graduate School of Medical Sciences, Kitasato University
Department of Rehabilitation, School of Allied Health Sciences, Kitasato University
Tohru Izumi
Department of Internal Medicine and Cardiology, School of Medicine, Kitasato University

Keywords: Standing balance, Leg strength

JOURNAL FREE ACCESS

2012 Volume 53 Issue 6 Pages 347-352

DOI https://doi.org/10.1536/ihj.53.347

Details

Abstract

This study aimed to evaluate the degree of reduction in walking speed in patients with acute myocardial infarction (AMI) compared to age-matched community-dwelling people and identify factors associated with walking speed. The subjects were 210 middle-aged and 188 elderly patients with a first AMI (AMI group) and 198 age-matched community-dwelling people with no medical events (non-AMI group). We measured maximum walking speed in all subjects and collected clinical data, including that related to motor function, at the end of a supervised cardiac rehabilitation program in the AMI group. Data were analyzed based on age and sex. Walking speed in men and women in the middle-aged AMI subgroup decreased to 77.9% and 75.7% relative to that of the non-AMI subgroup matched by sex, respectively; walking speed in men and women in the elderly AMI subgroup decreased to 78.7% and 74.2% relative to that of the non-AMI subgroup matched by sex, respectively. Moreover, 6.4% of men and 23.8% of women in the middle-aged AMI subgroup, and 28.8% of men and 43.5% of women in the elderly AMI subgroup, had a slower walking speed compared to their respective non-AMI groups, which may contribute to an increased risk for cardiovascular mortality. Stepwise multiple regression analysis for motor function revealed that only leg strength in the middle-aged AMI subgroup, and both leg strength and standing balance in the elderly AMI subgroup, were associated with walking speed, regardless of sex after adjusting for clinical characteristics. These results suggest that evaluation and management of walking speed are necessary in implementing effective disease management for patients with first AMI.

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