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dc.contributor.authorHomer-Vanniasinkam, Shervanthi*
dc.contributor.authorNaseem, Khalid M.*
dc.contributor.authorPasupathy, S.*
dc.date.accessioned2009-12-17T16:40:41Z
dc.date.available2009-12-17T16:40:41Z
dc.date.issued2004
dc.identifier.citationHomer-Vanniasinkam, S., Naseem, K.M. and Pasupathy, S. (2004). Effects of warm-up on exercise capacity, platelet activation and platelet-leucocyte aggregation in patients with claudication. British Journal of Surgery. Vol. 92, No. 1, pp. 50-55.en
dc.identifier.urihttp://hdl.handle.net/10454/4147
dc.descriptionNoen
dc.description.abstractThe effects of exercise and warm-up were investigated in patients with claudication. This case-control crossover study involved two treadmill exercise tests, one preceded by a warm-up. Exercise continued until maximal leg pain (patients with claudication) or exhaustion (controls). Blood was taken before, and 5 and 60 min after exercise for flow cytometric analysis of platelet activation and platelet-leucocyte aggregation. Both cohorts (eight patients with claudication of median age 63 years and eight healthy controls of median age 63·5 years) demonstrated improvement in exercise capacity after warm-up (13·1 per cent, P = 0·012 and 15·6 per cent, P = 0·008 respectively). Platelet activation increased after exercise in patients with claudication (fibrinogen binding: 1·11 per cent before exercise versus 2·63 per cent after exercise, P = 0·008; P-selectin: 0·68 versus 1·11 per cent, P = 0·028). Neither agonist stimulation nor warm-up altered this trend. Platelet-leucocyte (PLA) and platelet-neutrophil (PNA) aggregation were similarly increased immediately after exercise in patients with claudication (PLA: 7·6 versus 13·0 per cent, P = 0·004; PNA: 6·8 versus 10·2 per cent, P = 0·012). These remained high 60 min after exercise only in patients with claudication, but recovered to baseline levels when preceded by warm-up. Warm-up significantly desensitized PNA after stimulation with 10 µmol/l adenosine 5-diphosphate at all time points. Warm-up increased the exercise capacity of patients with claudication. Exercise induced a thromboinflammatory response, with PLA and PNA persistently increased after 60 min in patients with claudication, an effect diminished after warm-up.en
dc.language.isoenen
dc.relation.isreferencedbyhttp://dx.doi.org/10.1002/bjs.4798en
dc.subjectClaudationen
dc.subjectExerciseen
dc.subjectWarmupen
dc.titleEffects of warm-up on exercise capacity, platelet activation and platelet-leucocyte aggregation in patients with claudicationen
dc.status.refereedYesen
dc.typeArticleen
dc.type.versionNo full-text available in the repositoryen


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