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To evaluate the effects of 12-weeks of walk training with self-selected intensity on lipid profile and anthropometric variables in women with obesity. Forty-eight women volunteers with obesity were randomly assigned into two training groups: self-selected walking group (SSWG; n = 25) and control group (CG; n = 23). There was improvement in biochemical markers only in the SSWG post-intervention (p < 0.05), however no changes were verified in anthropometric variables (p > 0.05). This study demonstrates that walking at self-selected intensity improved the lipid profile in women with obesity. [ABSTRACT FROM AUTHOR]

The article discusses a study which was aimed to verify the self-selected intensity during resistance training (RT) in older women. The study included 20 healthy women who underwent a 2-week familiarization period followed by 3 experimental sessions. The study concluded that the use of self-selection strategy during an exercise program can have greater advantages because of its easy applicability and its positive relation with exercise adherence.

Adults engage in exercise programs not only to improve health, but also to lose or maintain body fat mass. There is the tendency for subjects to exercise at a self-selected a pace rather than a prescribed intensity. The purpose of this study was to determine if sedentary women could self-select a walking intensity that corresponds to Fatmax. This study consisted of 22 adult women with an average age of 42.91 ± 44 y rs. Each subject performed a maximal incremental test to exhaustion and a session of exercise at their self-selected walking pace. Data from the maximal test were used to determine Fatmax and Fatzone. The t test was used to determine differences between the subjects' self-selected walking pace and the predicted walking speed at Fatmax. Fatmax occurred at 51.3 ± 7.2% of VO2 max and Fatzone between 46% and 56% of VO2 max. The intensity of the self-selected walking pace was 5.06 ± 0.65 km·h-1, which corresponded to 51.3% VO2 max and to 66.8% HR max. These findings indicate that sedentary women can self-select a walking intensity that corresponds to an exercise intensity that elicits maximal fat oxidation (Fatmax). [ABSTRACT FROM AUTHOR]

The article presents the results of a study which investigated the accuracy of an OMNI rating upon perceived exertion by women conducting bench stepping exercises. An overview of related previous research is provided, detailing the use of palpation measurement procedure and associated potential complications. Details of the experiment protocol are also presented, including interval oxygen consumption and perceived intensity measurements.

The aim of this study was to compare acute affective responses at exercise intensities based on the ventilatory threshold between normal weight, overweight, and obese women. 66 sedentary women (22 in each Body Mass Index group) performed a maximal graded treadmill test to measure their maximal oxygen uptake and ventilatory thresholds. Affective valence was compared at intensities spanning the ventilatory threshold (below, at, and above threshold). Affective valence below ventilatory threshold did not differ among the Body Mass Index groups. The obese group had a lower affective response at ventilatory threshold and above ventilatory threshold than the normal weight and overweight groups; the latter two groups did not differ. The obese group had a lower affective response than the normal and overweight groups, which corresponds to a less pleasant experience. Exercise prescriptions for obese subjects targeting intensities below ventilatory threshold can provide a more pleasant experience and may facilitate exercise adherence. [ABSTRACT FROM AUTHOR]

To investigate the relationships between race performance and parameters at the optimal power output for lactate removal, 10 male triathletes were examined. Exercise intensities for lactate removal were defined by calculating 50% of difference (ΔT) between running velocity (Vr) at individual anaerobic threshold (IAT) and at individual ventilatory threshold (IVT), then choosing 3 Vr: at IVT plus 50% ΔT (IVT+50%ΔT), at IVT, and at IVT minus 50% ΔT (IVT-50%ΔT). After a 6-minute treadmill run at 75% of difference between IAT and O2max, all triathletes performed a 30-minute active recovery run at IVT+50%ΔT, IVT, and IVT-50%ΔT. Capillary blood lactate was determined at 1, 3, 6, 9, 12, 15, 20, 25, and 30 minutes of recovery. The IVT-50%ΔT recovery was the most efficient Vr for lactate removal. Running velocities at IVT and IVT-50%ΔT were highly (p × 0.01) related to cycle, run, and overall race time. O2 values at IAT, IVT+50%ΔT, and IVT were less (p × 0.05) related to split and overall race time. The variable most related to overall race time, as determined by stepwise multiple linear regression analysis, was the Vr at IVT-50%ΔT (r = 0.87, p = 0.001). The R2 value of 0.76 indicated that Vr at IVT-50%ΔT could account for 76% of the variance in triathlon race time. This study shows that the race performances of triathletes are highly related to the Vr at which the most efficient lactate removal (IVT-50%ΔT) occurs. These findings suggest that the assessment of Vr at IVT and IAT (from which Vr at IVT-50%ΔT are calculated) may be a useful method for monitoring training-induced adaptations and performance improvements in athletes who participate in Olympic triathlons. [ABSTRACT FROM AUTHOR]