Patterns of recovery following isometric and isotonic strength decrement

The influence of body fat on isometric exercise performance

“…The overweight group could sustain a second isometric contraction for 64% of the time of the first contraction while the control group could sustain the tension only 52% of the initial endurance after 3 min recovery intervals. The recovery after 3 min, therefore, was similar to that reported by Lind (Funderburk et al 1974, Lind 1959) while the overweight group had a recovery similar to Kearney (Stull andClarke 1971, Stull andKearney 1978). It is tempting to speculate that part or all of the difference in recovery between these studies is related to differences in body fat between the 2 groups of subjects by Lind's (Funderburk et al 1974, Lind 1959) and our own subjects were trained while Stull and Kearney's Clarke 1971, Stull andKearney 1978) were not and this may also influence the results.…”

“…The recovery after 3 min, therefore, was similar to that reported by Lind (Funderburk et al 1974, Lind 1959) while the overweight group had a recovery similar to Kearney (Stull andClarke 1971, Stull andKearney 1978). It is tempting to speculate that part or all of the difference in recovery between these studies is related to differences in body fat between the 2 groups of subjects by Lind's (Funderburk et al 1974, Lind 1959) and our own subjects were trained while Stull and Kearney's Clarke 1971, Stull andKearney 1978) were not and this may also influence the results. Downloaded by [Columbia University] at 13:55 08 December 2014 Dans cet article on etudie l'effet de la graisse corporelle sur la capacite de fournir une contraction isometrique fatigante et sur la recuperation de la force et de l'endurance qui fait suite aces contractions.…”

“…For example, when a tension of 25% MVC is held to fatigue, the endurance time is typically about 8 min whereas the endurance time for a contraction at a tension of 55% MVC is typically less than 1 min (Funderburk et al 1974, Lind 1959, Stull and Clarke 1971, Stull and Kearney 1978, Rohmert 1968). The ability to sustain contractions at a given tension is highly dependent on the temperature of the exercising muscles.…”

Respiratory Muscles Performance Is Related to Oxygen Kinetics During Maximal Exercise and Early Recovery in Patients With Congestive Heart Failure

“…This may be due to the slower recovery of muscle energy stores, 22 because the time course of energy stores resynthesis resembles the recovery of maximum strength after exhaustive exercise in man. 24,25 The pathophysiological mechanism of the slower recovery of muscles' energy stores is not yet clear. Supinski et al, 37 in an animal model of heart failure, found that the maximum phrenic arterial flow achieved during electrically induced diaphragmatic fatigue was appreciably less and the duration of postocclusive hyperemia in diaphragmatic muscle was significantly longer in animals with heart failure.…”

“…22 These findings agree with the results of experiments in isolated perfused canine muscles, which showed that the recovery of V O 2 follows the same time course as the recovery of high-energy phosphates. 23 Because the time course of energy-store resynthesis resembles the recovery of maximum strength after exhaustive exercise in humans, 24,25 we hypothesized that the recovery of muscle energy stores, as expressed by early exercise recovery in oxygen kinetics, is associated with respiratory muscle performance. The objective of this study was to examine the relationship between maximal respiratory mouth pressures, before and after exercise, and early recovery oxygen kinetics.…”