Heart rate indices of the anaerobic threshold

Dwyer, James H.; Bybee, Ronald F.

doi:10.1249/00005768-198315010-00013

Cited by 62 publications

(27 citation statements)

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“…This value is similar to findings of Parkhouse et al (1982), Dressendorfer et al (1981) and Dwyer and Bybee (1983) who observed that HRs at AT expressed as a percentage of maximal cardiac frequency were 84, 86, 88 and 86.3% for trained, highly trained, normal males and normal women respectively. Other investigators, using rowing ergometers, found that the mean HR values at AT were 167 and 168 beats.min-1 for international and national rowers (Mahler et al, 1984;Mickelson and Hagerman, 1982).…”

Section: Discussion Lactic Acid Removalsupporting

confidence: 90%

Lactic acid removal and heart rate frequencies during recovery after strenuous rowing exercise.

Koutedakis¹,

Sharp²

1985

Br J Sports Med

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Three tests were conducted to assess the effectiveness of three different intensities of exercise both in reducing blood lactic acid (LA) levels and in influencing subjects' heart rate (HR), following a 2000 m race in a rowing boat. In the first and second tests these variables were investigated during a 13 min recovery exercise at 60% and 40% of the preceding maximum rowing speed respectively. In the third test the subjects had a resting recovery.The results include a significant increase (P < 0.001) in the rate of lactate removal following the 40% recovery compared with the 60% and resting recoveries. The HRs were significantly lower during the last minute of resting recovery compared with 40% and 60% recoveries (P < 0.001). The same was true when 40% recovery was compared with 60% recovery (P < 0.001).The present data suggest firstly that 40% of the maximum rowing speed is an appropriate pace for effective LA removal and secondly that, at least for trained rowers, 86% of their maximum HR can be taken as an indication of work of an intensity at or above anaerobic threshold.

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Section: Discussion Lactic Acid Removalsupporting

confidence: 90%

Lactic acid removal and heart rate frequencies during recovery after strenuous rowing exercise.

Koutedakis¹,

Sharp²

1985

Br J Sports Med

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“…Second, this solution does not take into account the balance between the underlying metabolic processes (aerobic and anaerobic), which may differ between two individuals exercising at the same percentage of their maximal capacity, even if these individuals are of the same sex and of similar age, health and activity status (e.g. Dwyer & Bybee, 1983;Katch, Weltman, Sady, & Freedson, 1978). Consequently, it does not provide an adequate standardization of the exercise stimulus across individuals, particularly if one considers the multitude of cardiovascular, biochemical, neuroendocrine and, as we will show, affective changes that take place as the organism transitions between the aerobic and anaerobic modes of operation.…”

Section: Two Methodological Pitfallsmentioning

confidence: 99%

Variation and homogeneity in affective responses to physical activity of varying intensities: An alternative perspective on dose – response based on evolutionary considerations

Ekkekakis

Hall

Petruzzello

2005

Journal of Sports Sciences

307

325

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A model for systematic changes in patterns of inter-individual variation in affective responses to physical activity of varying intensities is presented, as a conceptual alternative to the search for a global dose -response curve. It is theorized that trends towards universality will emerge in response to activities that are either generally adaptive, such as moderate walking, or generally maladaptive, such as strenuous running that requires anaerobic metabolism and precludes the maintenance of a physiological steady state. At the former intensity the dominant response will be pleasure, whereas at the latter intensity the dominant response will be displeasure. In contrast, affective responses will be highly variable, involving pleasure or displeasure, when the intensity of physical activity approximates the transition from aerobic to anaerobic metabolism, since activity performed at this intensity entails a trade-off between benefits and risks. Preliminary evidence in support of this model is presented, based on a reanalysis of data from a series of studies.

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“…Recommendations based on the relative-percentage concept may induce multiple training stimuli in subjects, which have been thought to result in a wide range of improvements in cardiorespiratory and metabolic variables (Dwnyer and Bybee 1983). This would suggest that an exercise intensity based on this concept has limited usefulness in ensuring that a desired level of metabolic stress is attained for all subjects.…”

Section: Introductionmentioning

confidence: 99%

Effects of interval training at the ventilatory threshold on clinical and cardiorespiratory responses in elderly humans

Ahmaidi

Massé-Biron

Adam

et al. 1998

European Journal of Applied Physiology

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This study assessed clinical and cardiorespiratory responses after an interval training programme in sedentary elderly adults using the ventilatory threshold (Vth) as the index of exercise training intensity. A selection of 22 subjects were randomized into two groups: 11 subjects served as the training group (TG) and the others as controls (CG). Maximal exercise tests were performed on a treadmill before (T0), each month (T1, T2) and after the 3-month interval training programme period (T3). The TG subjects were individually trained at the heart rate corresponding to Vth measured at T0, T1 and T2 as the breakpoint in the oxygen uptake-carbon dioxide production relationship. Their training programme consisted of walking/jogging sessions on a running track twice a week. The sessions consisted of varying durations of exercise alternating with active recovery in such a way that the subjects slowly increased their total exercise time from an initial duration of 30 min to a final duration of 1 h. During training the heart rate was continuously monitored by a cardiofrequency meter. Compared with the daily activities of the controls, no training programme-related injuries were observed in TG. Moreover, programme adherence (73%) and attendance (97.3%) were high. The maximal oxygen uptake and Vth were increased in TG, by 20% (P<0.05) and 26% (P<0.01), respectively. Interval training at Vth also significantly increased maximal O2 pulse (P<0.05) and maximal ventilation (P<0.01). A significant decrease in submaximal ventilation (P<0.05) and heart rate (P<0.01) was also noted. These results would suggest that for untrained elderly adults, an interval training programme at the intensity of Vth may be well-tolerated clinically and may significantly improve both maximal aerobic power and submaximal exercise tolerance.

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Heart rate indices of the anaerobic threshold

Cited by 62 publications

References 0 publications

Lactic acid removal and heart rate frequencies during recovery after strenuous rowing exercise.

Lactic acid removal and heart rate frequencies during recovery after strenuous rowing exercise.

Variation and homogeneity in affective responses to physical activity of varying intensities: An alternative perspective on dose – response based on evolutionary considerations

Effects of interval training at the ventilatory threshold on clinical and cardiorespiratory responses in elderly humans

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