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Titolo:
EFFECTS OF ISCHEMIC TRAINING ON LOCAL AEROBIC MUSCLE PERFORMANCE IN MAN
Autore:
SUNDBERG CJ; EIKEN O; NYGREN A; KAIJSER L;
Indirizzi:
KAROLINSKA INST,DEPT PHYSIOL,ENVIRONM PHYSIOL LAB,BOX 60400 S-10401 STOCKHOLM 60 SWEDEN HUDDINGE HOSP,DEPT CLIN PHYSIOL S-14186 HUDDINGE SWEDEN
Titolo Testata:
Acta Physiologica Scandinavica
fascicolo: 1, volume: 148, anno: 1993,
pagine: 13 - 19
SICI:
0001-6772(1993)148:1<13:EOITOL>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERIPHERAL ARTERIAL INSUFFICIENCY; HUMAN SKELETAL-MUSCLE; BLOOD-FLOW; METABOLIC-ACTIVITY; ONE-LEG; EXERCISE; ADAPTATIONS; WORK;
Keywords:
BLOOD-FLOW RESTRICTION; ENDURANCE EXERCISE; HEALTHY SUBJECTS; HYPOXIA; INTERMITTENT CLAUDICATION; ISCHEMIC TRAINING; LEG POSITIVE PRESSURE; LOWER BODY POSITIVE PRESSURE; ONE-LEGGED CYCLE EXERCISE; PERFUSION PRESSURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
C.J. Sundberg et al., "EFFECTS OF ISCHEMIC TRAINING ON LOCAL AEROBIC MUSCLE PERFORMANCE IN MAN", Acta Physiologica Scandinavica, 148(1), 1993, pp. 13-19

Abstract

The aim of the study was to compare the effects of ischaemic and non-ischaemic training on aerobic performance. In 10 subjects, peak oxygenuptake (peak VO2) and time to fatigue (TTF) for one-legged exercise were measured before and after 4 weeks (4 times week-1) of one-legged training. Each training session started with one leg training for 45 min with 20% blood-flow reduction induced by local application of a supra-atmospheric external pressure of 50 mmHg (ischaemic leg; I-leg). We have previously shown that this decreases leg blood flow by about 20%. The contralateral leg (non-restricted-flow leg; N-leg), serving as a control, then trained with an identical power-output profile for 45 min but without flow restriction. In the I-leg the average training-induced increments in TTF and peak VO2 were 27 and 24%, respectively. In the N-trained leg TTF and peak-VO2 increased 10 and 14%, respectively. Both increments were significantly greater (P < 0.05) in the I-trainedleg. Moreover, the performance increase in the I-trained leg was exaggerated (P < 0.05) in the ischaemic test condition, i.e. there was a specificity in the training response. In conclusion, ischaemia acts as an additive stimulus to training leading to an exaggerated increase inendurance and peak-VO2 compared to identical training without blood-flow restriction. The main explanation is probably an enhanced local adaptation in the I-trained leg.

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Documento generato il 31/10/20 alle ore 10:30:08