caa a22 4500 469054654 CHVBK 20180323132840.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF00243513 doi (NATIONALLICENCE)springer-10.1007/BF00243513 Effect of very low calorie diet on body composition and exercise response in sedentary women [Elektronische Daten] [R. Eston, S. Shephard, S. Kreitzman, A. Coxon, D. Brodie, K. Lamb, V. Baltzopoulos] Summary: The effect of very low calorie diet (VLCD) on fat-free mass (FFM) and physiological response to exercise is a topic of current interest. Ten moderately obese women (aged 23-57 years) received VLCD (1695 kJ·day−1) for 6 weeks. FFM, estimated by four conventional techniques, and heart rate (f c), blood lactate (lab), mean arterial pressure (MAP), respiratory exchange ratio (R) and rating of perceived exertion (RPE) were measured during a submaximal cycle ergometry test 1 week bevore, in the 2nd and 6th week, and 1 week after VLCD treatment. Strength and muscular endurance of the quadriceps and hamstrings were tested by isokinetic dynamometry. The 11.5-kg reduction in body mass was approximately 63% fat and 37% FFM. The latter was attributed largely to the loss of water associated with glycogen. Whilst exercise f c increased by 9-14 beats·min−1 (P<0.01), there were substantial decreases (P<0.01) in submaximal MAP (1.07-1.73 kPa), lab (0.75-1.00 mmol·1−1 and R (0.07-0.09) during VLCD. R and f c returned to normal levels after VLCD. Gross strength decreased (P<0.01) by 9 and 13% at 1.05 rad·s−1 and 3.14 rad·ss−1, respectively. Strength expressed relative to body mass (Nm·kg−1) increased (P<0.01) at the lower contraction velocity, but there was no change at the faster velocity. Muscular endurance also decreased (P<0.01) by 62 and 82% for the hamstrings and quadriceps, respectively: We concluded that the strength decrease was a natural adaptation to the reduction in body mass as the ratio of strength to FFM was maintained. Despite the physiological alterations, subjects could tolerate short-term, steady-state exercise during VLCD, with only slight increases in RPE. However, greater fatigue is associated with long duration strength training exercises during VLCD. Springer-Verlag, 1992 Very low calorie diet nationallicence Cycle ergometry nationallicence Steady state exercise nationallicence Strength nationallicence Fatigue nationallicence Eston R. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut Shephard S. Department of Physical Education and Sports Science, University of New England, Northern Rivers, Australia aut Kreitzman S. Department of Physical Education, Cambridge University, Cambridge, England aut Coxon A. 97, Harley St., London, England aut Brodie D. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut Lamb K. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut Baltzopoulos V. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/5(1992-11-01), 452-458 0301-5548 65:5<452 1992 65 421 https://doi.org/10.1007/BF00243513 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00243513 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eston R. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut NATIONALLICENCE 700 1- Shephard S. Department of Physical Education and Sports Science, University of New England, Northern Rivers, Australia aut NATIONALLICENCE 700 1- Kreitzman S. Department of Physical Education, Cambridge University, Cambridge, England aut NATIONALLICENCE 700 1- Coxon A. 97, Harley St., London, England aut NATIONALLICENCE 700 1- Brodie D. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut NATIONALLICENCE 700 1- Lamb K. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut NATIONALLICENCE 700 1- Baltzopoulos V. Department of Movement Science and Physical Education, University of Liverpool, PO Box 147, L69 3BX, Liverpool, England aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/5(1992-11-01), 452-458 0301-5548 65:5<452 1992 65 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer