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Intensive aerobic and muscle endurance exercise in patients with systemic sclerosis: a pilot study.

ABSTRACT: No previous studies have examined the effect of intensive exercise in systemic sclerosis patients with pulmonary impairment. The objective of this study was to examine the effect of an eight-week intensive aerobic exercise and muscle endurance training program for patients with systemic sclerosis with 50-100% of forced vital capacity.A single-subject experimental design with repeated systematic measures during a six week A-phase (non-interventional baseline period) and an eight week B-phase (exercise intervention period) was used. Three women and one man with median age 66 years and median disease duration of 3.5?years completed aerobic exercise corresponding to 15 on the Borg RPE scale (strenuous) and muscular endurance training three times/week. Physical capacity (six-minute walk test), aerobic capacity (submaximal treadmill test) and muscle endurance in shoulder and hip flexion (Functional Index 2) were assessed every other week throughout the 14-week study. Activity limitation (Health Assessment Questionnaire), quality of life (Short Form 36), Raynaud, Fatigue and Global Health during the recent week (Visual Analogue Scales) were assessed at weeks 0, 6, 14.Three participants improved significantly in muscular endurance, and two participants improved significantly or clinically relevant in aerobic capacity. All other variables remained unchanged, except for a trend towards reduced fatigue.This eight week exercise program was largely successful with positive effects on aerobic capacity and muscle endurance.Clinicaltrials.gov Identifier: NCT01813578.

SUBMITTER: Alexanderson H

PROVIDER: S-EPMC3996139 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature

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Intensive aerobic and muscle endurance exercise in patients with systemic sclerosis: a pilot study.

Alexanderson Helene H Bergegård Jenny J Björnådal Lena L Nordin Annica A

BMC research notes 20140207

<h4>Background</h4>No previous studies have examined the effect of intensive exercise in systemic sclerosis patients with pulmonary impairment. The objective of this study was to examine the effect of an eight-week intensive aerobic exercise and muscle endurance training program for patients with systemic sclerosis with 50-100% of forced vital capacity.<h4>Methods</h4>A single-subject experimental design with repeated systematic measures during a six week A-phase (non-interventional baseline per ...[more]

PMID: 24507585

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Project description:OBJECTIVES:For people with end-stage renal disease requiring haemodialysis, exercise can improve aspects of quality of life (QoL). However, the relative benefits and risks of different types of exercise in this population are unknown. Therefore, this pilot study aimed to evaluate the feasibility of a main study evaluating the efficacy of cycling and resistance exercise each performed during the haemodialysis treatment on QoL. METHODS:In this factorial (2×2) pilot trial, 31 haemodialysis patients were randomised to cycling, resistance, cycling and resistance, or an attention control. Feasibility was defined a priori by criteria on recruitment, fidelity to the protocol and patient response to the intervention. To better understand feasibility, we conducted interviews with dialysis unit staff and trial participants. As secondary outcomes, we estimated the main effect of cycling and weights each compared with control on QoL, physical function and strength. FINDINGS:We exceeded the target accrual of 28 participants over 12?weeks. Irrespective of exercise group allocation, adherence was high; of the 1038 training sessions offered, 87% were initiated and over 80% of exercise sessions were performed as per protocol. Progression based on perceived exertion, individual instruction and interactions with the kinesiologist facilitated acceptability across exercise groups. Using an attention control, measures of contamination and attrition were low. Important barriers to unit staff readiness for the intervention were initial safety and workflow concerns, unit workload and onerous data collection. Secondary outcomes were not statistically significant. Adverse events were low and did not increase with a higher volume of exercise. CONCLUSIONS:The main study is feasible with minor modifications. In addition to practical assistance, involvement from unit staff could increase patient participation and improve trial implementation. Strategies to increase acceptability of the intervention for staff include improving workflow integration and using a prestudy demonstration phase to introduce the intervention. TRIAL REGISTRATION NUMBER:NCT02234232.

Dataset Information

Intensive aerobic and muscle endurance exercise in patients with systemic sclerosis: a pilot study.

Publications

Intensive aerobic and muscle endurance exercise in patients with systemic sclerosis: a pilot study.

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