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Titolo:
CHANGES IN PLASMA-VOLUME AND BAROREFLEX FUNCTION FOLLOWING RESISTANCEEXERCISE
Autore:
PLOUTZ LL; TATRO DL; DUDLEY GA; CONVERTINO VA;
Indirizzi:
OHIO UNIV,DEPT BIOL SCI,IRVINE HALL ATHENS OH 45701 BIONET CORP KENNEDY SPACE CTR FL 00000 NASA KENNEDY SPACE CTR FL 00000
Titolo Testata:
Clinical physiology
fascicolo: 4, volume: 13, anno: 1993,
pagine: 429 - 438
SICI:
0144-5979(1993)13:4<429:CIPABF>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
BARORECEPTOR-CARDIAC REFLEX; BLOOD-VOLUME; PROLONGED EXERCISE; RESPONSES; OSMOLALITY; PRESSURE; STRESS; HUMANS; RENIN;
Keywords:
CAROTID-CARDIAC BAROREFLEX; EVANS BLUE DYE; HEMATOCRIT; HEMOGLOBIN; HYPOVOLEMIA; HYPERVOLEMIA; BENCH PRESS; LEG PRESS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
L.L. Ploutz et al., "CHANGES IN PLASMA-VOLUME AND BAROREFLEX FUNCTION FOLLOWING RESISTANCEEXERCISE", Clinical physiology, 13(4), 1993, pp. 429-438

Abstract

The dynamics of change in plasma volume (PV) and baroreflex responseshave been reported over 24 h immediately following maximal cycle exercise. The purpose of this study was to determine if PV and baroreflex showed similar changes for 24 h after resistance exercise. Eight men were studied on 2 test days, 1 week apart. On 1 day, per cent change (%DELTA) in PV was estimated at 0, 3, and 6 h after resistance exercise using haematocrit and haemoglobin. Baseline PV was measured 24 h afterexercise using Evans blue dye. The carotid baroreceptor-cardiac reflex response was measured before, and 3, 6, 9,12, and 24 h post-exercise. Each subject performed six sets of the bench press and leg press with 10 repetitions per set with a load that induced failure within each set. On a control day, the protocol was used without exercise. Plasma volume did not change during the control day. There was a 20% decreasein PV immediately post-exercise; the recovery of the PV was rapid andcomplete within 3 h. PV was 20% greater 24 h post-exercise than on the control day. There were no differences in any of the baroreflex measurements. Therefore, it is suggested that PV shifts may occur without altering baroreflex sensitivity.

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Documento generato il 27/11/20 alle ore 02:12:24