Lactate exchange and removal abilities in rowing performance

Messonnier, Laurent; Freund, H.; Bourdin, M.; Belli, Alain; Lacour, Jean‐René

doi:10.1097/00005768-199703000-00016

Cited by 54 publications

(57 citation statements)

References 20 publications

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“…Speci®cally, these authors observed, during incremental exercises (IE) leading to 75% of _ V O 2max , lower blood lactate concentrations after 9 weeks of endurance training, and attributed this decrease to the training-induced elevation of the lactate metabolic clearance rate (MCR). The results of Bassett et al (1991) also contrast with a recent study of Messonnier et al (1997), who found a positive correlation among high level oarsmen between the relative work rate corresponding to the 4 mmolál ±1 blood lactate concentration obtained during an IE (anaerobic threshold) and the recovery lactate removal ability. In view of these opposing results, the eect of training on the lactate removal ability during recovery from highintensity exercises performed at the same relative work rate before and after training deserves to be re-examined.…”

contrasting

confidence: 97%

Blood lactate exchange and removal abilities after relative high-intensity exercise: effects of training in normoxia and hypoxia

Messonnier

Freund

Féasson³

et al. 2001

European Journal of Applied Physiology

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The effects of 4 weeks of endurance training in conditions of normoxia or hypoxia on muscle characteristics and blood lactate responses after a 5-min constant-load exercise (CLE) at 90% of the power corresponding to the maximal oxygen uptake were examined at sea-level in 13 sedentary subjects. Five subjects trained in normobaric hypoxia (HT group, fraction of oxygen in inspired gas = 13.2%), and eight subjects trained in normoxia at the same relative work rates (NT group). The blood lactate recovery curves from the CLE were fitted to a biexponential time function: La(t) = La(0) + A1(1 - e- gamma 1.t) + A2(1 - e- gamma 2.t), where the velocity constants gamma 1 and gamma 2 denote the lactate exchange and removal abilities, respectively, A1 and A2 are concentration parameters that describe the amplitudes of concentration variations in the space represented by the arterial blood, La(t) is the lactate concentration at time t, and La(0) is the lactate concentration at the beginning of recovery from CLE. Before training, the two groups displayed the same muscle characteristics, blood lactate kinetics after CLE, and gamma 1 and gamma 2 values. Training modified their muscle characteristics, blood lactate kinetics and the parameters of the fits in the same direction, and proportions among the HT and the NT subjects. Endurance training increased significantly the capillary density (by 31%), citrate synthase activity (by 48%) and H isozyme proportion of lactate dehydrogenase (by 24%), and gamma 1 (by 68%) and gamma 2 (by 47%) values. It was concluded that (1) endurance training improves the lactate exchange and removal abilities estimated during recovery from exercises performed at the same relative work rate, and (2) training in normobaric hypoxia results in similar effects on lactate exchange and removal abilities to training in normoxia performed at the same relative work rates. These results, which were obtained non-invasively in vivo in humans during recovery from CLE, are comparable to those obtained in vitro or by invasive methods during exercise and subsequent recovery.

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confidence: 97%

Blood lactate exchange and removal abilities after relative high-intensity exercise: effects of training in normoxia and hypoxia

Messonnier

Freund

Féasson³

et al. 2001

European Journal of Applied Physiology

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“…It integrates possible alterations in lactate production by active muscles (Chesley et al 1996) and in lactate exchange with plasma and clearance from the organism. Messonnier et al (1997) reported a significant relationship between both _ VO 2 La 4 and _ VO 2 La 4 % in rowers, and overall ability to remove lactate from the organism.…”

Section: Physiological Capacities During the International Competitiomentioning

confidence: 94%

Physiological correlates of performance. Case study of a world-class rower

2009

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This report describes the changes in physiological capacity of a heavy-weight rower who obtained seven medals in World Championships and Olympic Games. The investigation was carried out over the last 6 years of the rower's international competition career in comparison with peer champions, and the following 4 years. Over the first period, maximal oxygen uptake (VO(2max)) remained above 6 l min(-1) which is an outstanding value. The training load measured over the last 18 months of the period increased from 119 to 142 km wk(-1) of rowing. Four years after the international competition period, VO(2max) had only declined by 3.6% although the training load had declined by 35%. These data suggest that the ability of this rower to compete at top level for years was related to ability to maintain an outstanding VO(2max). Gross efficiency and ability to rely on anaerobic glycolysis did not emerge as relevant factors.

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“…Rowing performance is dependent upon the functional capacity of both aerobic and anaerobic energy pathways (Secher 1973), with the amount of energy derived from anaerobic metabolism amounting to 21-30% (Secher 1993), and 70-86% from aerobic metabolism (Messonnier et al 1997).…”

Section: Introductionmentioning

confidence: 99%

Physiological factors to predict on traditional rowing performance

Izquierdo-Gabarren¹,

Expósito²,

Villarreal

et al. 2009

Eur J Appl Physiol

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The purpose of this study was to determine the best prediction factors of traditional rowing performance in traditional elite (ER) and amateur (AR) rowers. Average power during the 20-min all-out test (W(20 min)), average power output which elicited a blood lactate concentration of 4 mmol l(-1) (W(4 mmol l(-1))), power output in 10 maximal strokes (W(10 strokes)), maximal strength and muscle power output during a bench pull (BP) and anthropometric values were all measured for 46 trained male rowers aged 21-30 with 8-15 years of rowing training experience. The ER group showed greater body mass (5%, p < 0.05), greater fat free body mass (5%, p < 0.05), greater 1RM(BP) (13%, p < 0.001), longer training experience (43%, p < 0.001), and a shorter time in the 2,000 m test (4%, p < 0.05) than the AR group. The ER group showed higher power output values in W(10 strokes) (9%, p < 0.01), W(20 min) (15.4%, p < 0.01) and (W(4 mmol l(-1))) (17.8%, p < 0.01) compared with the AR group. Significant relationships were observed between (W(4 mmol l(-1))) and W(20 min) (r = 0.65 and 0.80; p < 0.01 in ER and AR, respectively). The indices for rowing performance suggested that W(20 min), (W(4 mmol l(-1))), W(10 strokes) and 1RM(BP) were the most important predictors of traditional rowing performance in elite and amateur rowers.

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Lactate exchange and removal abilities in rowing performance

Cited by 54 publications

References 20 publications

Blood lactate exchange and removal abilities after relative high-intensity exercise: effects of training in normoxia and hypoxia

Blood lactate exchange and removal abilities after relative high-intensity exercise: effects of training in normoxia and hypoxia

Physiological correlates of performance. Case study of a world-class rower

Physiological factors to predict on traditional rowing performance

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