Article Text

other Versions

PDF
Physical fitness and indices of lifestyle-related diseases before and after interval walking training in middle-aged and older males and females
  1. M Morikawa1,2,
  2. K Okazaki1,
  3. S Masuki1,
  4. Y Kamijo1,
  5. T Yamazaki2,
  6. H Gen-no2,
  7. H Nose1,2
  1. 1Department of Sports Medical Sciences, Shinshu University Graduate School of Medicine, Matsumoto, Japan
  2. 2Jukunen Taiikudaigaku Research Center, 3-1-1 Asahi, Matsumoto 390-8621, Japan
  1. Correspondence to Professor Hiroshi Nose, Department of Sports Medical Sciences, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan; nosehir{at}shinshu-u.ac.jp

Abstract

Hypothesis Whether increasing peak aerobic capacity for walking (GraphicO2peak) by interval walking training (IWT) is closely linked with decreasing the indices of lifestyle-related diseases (LSDs) in middle-aged and older people were examined.

Methods For 4 months from April to September 2005 or 2006, 246 males and 580 females (∼65 years) performed IWT consisting of ≥5 sets of fast walking at ≥70% GraphicO2peak for 3 min followed by slow walking at ≤40% GraphicO2peak for 3 min ≥4 days/week. Before and after IWT, we measured GraphicO2peak, body mass index (BMI), %body fat, arterial blood pressure, thigh muscle strength and blood parameters. We analysed 198 males and 468 females who had undergone all the measurements both before and after IWT. To examine the hypothesis, we divided the subjects equally into three groups according to their pretraining GraphicO2peak: low, middle and high groups for each sex.

Results Before training, it was found that thigh muscle strength and blood high-density lipoprotein cholesterol concentration were lower, whereas body weight, BMI, %body fat, arterial blood pressure and blood glucose were higher in the low group than the high group (all, p<0.05). After training, although GraphicO2peak and thigh muscle strength increased and body weight, BMI, %body fat, blood pressure and blood glucose concentration decreased in all groups (all, p<0.05), the changes were greatest in the low group for both sexes.

Conclusion GraphicO2peak at baseline and changes in response to training were closely linked with indices of LSDs.

Statistics from Altmetric.com

Footnotes

  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the Review Board of Human Experiments of the Shinshu University School of Medicine.

  • Provenance and peer review Not commissioned; externally peer reviewed.

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.