title: Impact of a supervised strength training or walking training over a subsequent unsupervised therapy period on walking capacity in patients with claudication.
abstract: Previous studies have demonstrated that supervised strength training (ST) or walking training (WT) improve walking capacity in patients with claudication. However, it remains unknown whether these improvements would be sustained over a subsequent unsupervised period. This article reports the findings of a study to analyze whether the improvements in walking capacity, achieved with a supervised ST or WT, would be sustained over a subsequent unsupervised therapy period in patients with claudication. Patients were initially randomized to supervised exercise consisting of ST (n = 15) or WT (n = 15) for 12 weeks. After this period, 12 patients in each group consented to be followed for an additional 12 weeks of unsupervised therapy. Initial claudication distance (ICD) and total walking distance (TWD) were measured at baseline, after the supervised period (Week 12) and after the unsupervised period (Week 24). In comparison with baseline values, both groups similarly increased ICD and TWD at Week 12. From Week 12 to Week 24, both groups similarly decreased ICD (ST: -55 ± 110 m and WT: -82 ± 142 m, P =.04) and TWD (ST: -68 ± 186 m and WT: -128 ± 112 m, P < .01). However, in both groups, ICD (ST: +126 ± 149 m and WT: +50 ± 167 m, P = .01) and TWD (ST: +104 ± 162 m and WT: +45 ± 139 m, P =.01) at Week 24 remained greater than baseline values. The conclusion is that supervised ST or WT followed by an unsupervised therapy period similarly decreased walking capacity in patients with claudication. However, after the unsupervised period, walking capacity remained at a higher level than before the onset of the supervised exercise-training period.
authors.affiliation: University of Pernambuco, Recife, Santo Amaro, Brazil.
authors.forename: Annelise Lins
authors.initials: AL
authors.lastname: Menêses
authors.forename: Gustavo Henrique Correia
authors.initials: GH
authors.lastname: de Lima
authors.forename: Cláudia Lúcia de Moraes
authors.initials: CL
authors.lastname: Forjaz
authors.forename: Aluísio Henrique Rodrigues de Andrade
authors.initials: AH
authors.lastname: Lima
authors.forename: Gleyson Queiroz de Moraes
authors.initials: GQ
authors.lastname: Silva
authors.forename: Gabriel Grizzo
authors.initials: GG
authors.lastname: Cucato
authors.forename: Sérgio Luiz Cahú
authors.initials: SL
authors.lastname: Rodrigues
authors.forename: Nelson
authors.initials: N
authors.lastname: Wolosker
authors.forename: Maria de Fátima Nunes
authors.initials: Mde F
authors.lastname: Marucci
authors.forename: Raphael Mendes Ritti
authors.initials: RM
authors.lastname: Dias
mesh_terms: D000368:Aged; D005081:Exercise Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D007383:Intermittent Claudication / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation*; D008297:Male; D008875:Middle Aged; D058729:Peripheral Arterial Disease / Q000503:physiopathology*; D020127:Recovery of Function; D055070:Resistance Training / Q000379:methods*; D016896:Treatment Outcome; D016138:Walking