Journal of Vascular Surgery
Volume 47, Issue 2 , Pages 303-309, February 2008

Effects of a long-term exercise program on lower limb mobility, physiological responses, walking performance, and physical activity levels in patients with peripheral arterial disease

  • Robert G. Crowther, BSpExSc (Hons)

      Affiliations

    • Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland, Australia.
    • Corresponding Author InformationReprint requests: Mr Robert Crowther, Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland 4811 Australia.
    • ,
  • Warwick L. Spinks, PhD

      Affiliations

    • Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland, Australia.
    • ,
  • Anthony S. Leicht, PhD

      Affiliations

    • Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland, Australia.
    • ,
  • Kunwarjit Sangla, MBBS

      Affiliations

    • Townsville Hospital, Townsville, Queensland, Australia
    • ,
  • Frank Quigley, MBBS, MS, FRACS

      Affiliations

    • Townsville Hospital, Townsville, Queensland, Australia
    • ,
  • Jonathan Golledge, MA, Mchir, FRCS, FRACS

      Affiliations

    • The Vascular Biology Unit, James Cook University, Townsville, Queensland, Australia.

Received 14 August 2007; accepted 22 October 2007.

Objective

The purpose of the study was to examine the effects of a 12-month exercise program on lower limb mobility (temporal-spatial gait parameters and gait kinematics), walking performance, peak physiological responses, and physical activity levels in individuals with symptoms of intermittent claudication due to peripheral arterial disease (PAD-IC).

Methods

Participants (n = 21) with an appropriate history of PAD-IC, ankle-brachial pressure index (ABI) <0.9 in at least one leg and a positive Edinburgh claudication questionnaire response were prospectively recruited. Participants were randomly allocated to either a control PAD-IC group (CPAD-IC) (n = 11) that received standard medical therapy and a treatment PAD-IC group (TPAD-IC) (n = 10), which also took part in a 12-month supervised exercise program. A further group of participants (n = 11) free of PAD (ABI >0.9) and who were non-regular exercisers were recruited from the community to act as age and mass matched controls (CON). Lower limb mobility was determined via two-dimensional video motion analysis. A graded treadmill test was used to assess walking performance and peak physiological responses to exercise. Physical activity levels were measured via a 7-day pedometer recording. Differences between groups were analyzed via repeated measures analysis of variance (ANOVA).

Results

The 12-month supervised exercise program had no significant effect on lower limb mobility, peak physiological responses, or physical activity levels in TPAD-IC compared with CPAD-IC participants. However, the TPAD-IC participants demonstrated significantly greater walking performance (171% improvement in pain free walking time and 120% improvement in maximal walking time compared with baseline).

Conclusion

The results of this study confirm that a 12-month supervised exercise program will result in improved walking performance, but does not have an impact on lower limb mobility, peak physiological responses, or physical activity levels of PAD-IC patients.

 

 Competition of interest: none.

PII: S0741-5214(07)01740-5

doi:10.1016/j.jvs.2007.10.038

Journal of Vascular Surgery
Volume 47, Issue 2 , Pages 303-309, February 2008

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