Excess Postexercise Oxygen Consumption Following Acute Aerobic and Resistance Exercise in Women Who Are Lean or Obese

Crommett, April D.; Kinzey, Stephen J.

doi:10.1519/11612.1

Cited by 5 publications

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“…Traditional STe use a relative percentage of a one repetition maximum (1RM) to define the load (Braun et al, 2005; Burleson et al, 1998; Crommett and Kinzey, 2004). In our view, pairing or matching % VO2max with % 1RM does not guarantee the same physiological intensity between both types of exercise (Bloomer 2005; Steele et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Comparison of oxygen uptake during and after the execution of resistance exercises and exercises performed on ergometers, matched for intensity

Vilaça-Alves

Freitas

Saavedra

et al. 2016

Journal of Human Kinetics

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The aim of this study was to compare the values of oxygen uptake (VO2) during and after strength training exercises (STe) and ergometer exercises (Ee), matched for intensity and exercise time. Eight men (24 ± 2.33 years) performed upper and lower body cycling Ee at the individual’s ventilatory threshold (VE/VCO2). The STe session included half squats and the bench press which were performed with a load at the individual blood lactate concentration of 4 mmol/l. Both sessions lasted 30 minutes, alternating 50 seconds of effort with a 10 second transition time between upper and lower body work. The averaged overall VO2 between sessions was significantly higher for Ee (24.96 ± 3.6 ml·kg·min-1) compared to STe (21.66 ± 1.77 ml·kg·min-1) (p = 0.035), but this difference was only seen for the first 20 minutes of exercise. Absolute VO2 values between sessions did not reveal differences. There were more statistically greater values in Ee compared to STe, regarding VO2 of lower limbs (25.44 ± 3.84 ml·kg·min-1 versus 21.83 ± 2·24 ml·kg·min-1; p = 0.038) and upper limbs (24.49 ± 3.84 ml·kg·min-1 versus 21.54 ± 1.77 ml·kg·min-1; p = 0.047). There were further significant differences regarding the moment effect (p<0.0001) of both STe and Ee sessions. With respect to the moment × session effect, only VO2 5 minutes into recovery showed significant differences (p = 0.017). In conclusion, although significant increases in VO2 were seen following Ee compared to STe, it appears that the load/intensity, and not the material/equipment used for the execution of an exercise, are variables that best influence oxygen uptake.

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Section: Introductionmentioning

confidence: 99%

Comparison of oxygen uptake during and after the execution of resistance exercises and exercises performed on ergometers, matched for intensity

Vilaça-Alves

Freitas

Saavedra

et al. 2016

Journal of Human Kinetics

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Excess Postexercise Oxygen Consumption After Aerobic Exercise Training

Sedlock

Man-Gyoon²,

Flynn³

et al. 2010

International Journal of Sport Nutrition and Exercise Metabolism

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Literature examining the effects of aerobic exercise training on excess postexercise oxygen consumption (EPOC) is sparse. In this study, 9 male participants (19-32 yr) trained (EX) for 12 wk, and 10 in a control group (CON) maintained normal activity. VO(2max), rectal temperature (T(re)), epinephrine, norepinephrine, free fatty acids (FFA), insulin, glucose, blood lactate (BLA), and EPOC were measured before (PRE) and after (POST) the intervention. EPOC at PRE was measured for 120 min after 30 min of treadmill running at 70% VO(2max). EX completed 2 EPOC trials at POST, i.e., at the same absolute (ABS) and relative (REL) intensity; 1 EPOC test for CON served as both the ABS and REL trial because no significant change in VO(2max) was noted. During the ABS trial, total EPOC decreased significantly (p < .01) from PRE (39.4 ± 3.6 kcal) to POST (31.7 ± 2.2 kcal). T(re), epinephrine, insulin, glucose, and BLA at end-exercise or during recovery were significantly lower and FFA significantly higher after training. Training did not significantly affect EPOC during the REL trial; however, epinephrine was significantly lower, and norepinephrine and FFA, significantly higher, at endexercise after training. Results indicate that EPOC varies as a function of relative rather than absolute metabolic stress and that training improves the efficiency of metabolic regulation during recovery from exercise. Mechanisms for the decreased magnitude of EPOC in the ABS trial include decreases in BLA, T(re), and perhaps epinephrine-mediated hepatic glucose production and insulin-mediated glucose uptake.

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Nutritional aspects of women strength athletes

Volek

Forsythe²,

Kraemer³

2006

Br J Sports Med

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Strength training elicits sports related and health benefits for both men and women. Although sexual dimorphism is observed in exercise metabolism, there is little information outlining the specific nutritional needs of women strength athletes. Many women athletes restrict energy intake, specifically fat consumption, in order to modify body composition, but this nutritional practice is often counterproductive. Compared to men, women appear to be less reliant on glycogen during exercise and less responsive to carbohydrate mediated glycogen synthesis during recovery. Female strength athletes may require more protein than their sedentary and endurance training counterparts to attain positive nitrogen balance and promote protein synthesis. Therefore, women strength athletes should put less emphasis on a very high carbohydrate intake and more emphasis on quality protein and fat consumption in the context of energy balance to enhance adaptations to training and improve general health. Attention to timing of nutrient ingestion, macronutrient quality, and dietary supplementation (for example, creatine) are briefly discussed as important components of a nutritionally adequate and effective strength training diet for women. Strength training for healthy women is endorsed by the American College of Sports Medicine 1 and has many beneficial effects on health 2 3 while also enhancing performance in other activities. 4 Women engaging in strength training range from young high school athletes, 5 to post-menopausal women, 2 to those competing in strength training sports (for example, weight lifting, power lifting, and bodybuilding). Nutrition has a major influence on the magnitude of adaptation to training. Proper food intake and sound nutritional strategies will result in strength and muscular endurance improvements, and will facilitate athletic performance.6 Nutritional needs are influenced by the metabolism of energy providing nutrients (that is, mobilisation, utilisation, and storage of energy substrates) at rest and during exercise. Nutritional recommendations for men and women strength athletes share many common elements and the reader is referred to other reports that discuss these in more detail.7 8 The main purpose of this review is to point out subtle, but potentially important, gender differences in metabolism and to suggest related nutritional approaches for women engaged in strength training whose goals are muscular hypertrophy, power, and strength. WOMEN AND STRENGTH TRAININGThe general benefits of strength training for both men and women include an increase in bone mass and lean mass, 9 improved body composition (due to decreased fat mass), cardiovascular fitness, strength, and an enhanced sense of well being.3 10-12 Alterations in muscle strength and size following resistance training in women are similar to those in men, [13][14][15][16] given that the exercise stimulus is the same.17 However, the relative increases in strength upon initiation of training may be greater in women partially because of lower base...

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Excess Postexercise Oxygen Consumption Following Acute Aerobic and Resistance Exercise in Women Who Are Lean or Obese

Cited by 5 publications

References 0 publications

Comparison of oxygen uptake during and after the execution of resistance exercises and exercises performed on ergometers, matched for intensity

Comparison of oxygen uptake during and after the execution of resistance exercises and exercises performed on ergometers, matched for intensity

Excess Postexercise Oxygen Consumption After Aerobic Exercise Training

Nutritional aspects of women strength athletes

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