Effects of an Acute Bout of Exercise on Cognitive Aspects of Stroop Performance

2006 ◽  
Vol 28 (3) ◽  
pp. 285-299 ◽  
Author(s):  
Benjamin A. Sibley ◽  
Jennifer L. Etnier ◽  
Guy C. Le Masurier

Recent reviews of the literature have demonstrated that exercise has a positive impact on cognitive performance. The purpose of this study was to assess the impact of an acute bout of aerobic exercise on executive functioning in college-age adults. For the experimental intervention, the effects of 20 min of self-paced moderate-intensity exercise on a treadmill were compared to the effects of a 20-min sedentary control period. Executive functioning was assessed using Stroop color-word interference and negative priming tests. Results indicated that the bout of exercise led to improved performance on the Stroop color-word interference task but no change in performance on the negative priming task. This finding suggests that exercise may facilitate cognitive performance by improving the maintenance of goal-oriented processing in the brain.

Author(s):  
Douglas Lopes Almeida ◽  
Gabriel Sergio Fabricio ◽  
Laize Peron Tófolo ◽  
Tatiane Aparecida Ribeiro ◽  
Camila Cristina Ianoni Matiusso ◽  
...  

Abstract Exercise counteracts obesity effects, but information on how early-life obesity may affect long-term adaptation to exercise is lacking. This study investigates the impact of early-life postnatal overfeeding (PO) on animals’ adaptation to exercise. Only male Wistar rats were used. On postnatal day (PN) 30, rats from control (NL-9 pups) or PO (SL-3 pups) litters were separated into four groups: NL-sedentary (NL-Se), NL-exercised (NL-Ex), SL-sedentary (SL-Se), and SL-exercised (SL-Ex). Exercised groups performed moderate-intensity exercise, running on a treadmill, from PN30 to PN90. Further experiments were carried out between PN90 and PN92. PO promoted obesity in SL versus NL rats (P < 0.05). Exercise reduced body weight (P < 0.001), body fat (P < 0.01), and improved glucose homeostasis in SL-Ex versus SL-Se. SL-Ex presented lower VO2max (P < 0.01) and higher post-exercise LDH (P < 0.05) compared to NL-Ex rats. Although moderate exercise counteracted obesity in SL rats, early-life overnutrition restricts fitness gains in adulthood, indicating that early obesity may impair animals’ adaptation to exercise.


2021 ◽  
Vol 33 (2) ◽  
pp. 82-89
Author(s):  
Yasmeen Mezil ◽  
Joyce Obeid ◽  
Inna Ushcatz ◽  
Sandeep Raha ◽  
Brian W. Timmons

Purpose: In girls and women, the authors studied the effects of an acute bout of low-impact, moderate-intensity exercise serum on myoblast and osteoblast proliferation in vitro. Methods: A total of 12 pre/early pubertal girls (8–10 y old) and 12 women (20–30 y old) cycled at 60% VO2max for 1 hour followed by 1-hour recovery. Blood samples were collected at rest, mid-exercise, end of exercise, mid-recovery, and end of recovery. C2C12 myoblasts and MC3T3E1 osteoblasts were incubated with serum from each time point for 1 hour, then monitored for 24 hours (myoblasts) or 36 hours (osteoblasts) to examine proliferation. Cells were also monitored for 6 days (myoblasts) to examine myotube formation and 21 days (osteoblasts) to examine mineralization. Results: Exercise did not affect myoblast or osteoblast proliferation. Girls exhibited lower cell proliferation relative to women at end of exercise (osteoblasts, P = .041; myoblasts, P = .029) and mid-recovery (osteoblasts, P = .010). Mineralization was lower at end of recovery relative to rest (P = .014) in both girls and women. Myotube formation was not affected by exercise or group. Conclusion: The systemic environment following one acute bout of low-impact moderate-intensity exercise in girls and women does not elicit osteoblast or myoblast activity in vitro. Differences in myoblast and osteoblast proliferation between girls and women may be influenced by maturation.


2019 ◽  
Vol 34 (6) ◽  
pp. 879-879
Author(s):  
T Slonim ◽  
L Haase-Alasantro ◽  
C Murphy

Abstract Objective Metabolic syndrome (MetS) is associated with increased rates of mortality and increased risk for developing dementia. Changes in brain structure and executive functioning have been reported within the literature. However, research examining cognitive performance in individuals with metabolic syndrome focuses primarily on older cohorts. As such, the effect of metabolic syndrome on cognitive functioning earlier in the lifespan is unclear. This research examined neuropsychological test performance and self-report measures in young, middle-aged, and older adults with and without MetS. Method Participants (n = 128) were categorized by age and metabolic status as follows: Young: n = 42, 52.4% Metabolic; Middle-Age: n = 41, 56.1% Metabolic; Older: n = 45, 51.1% Metabolic. Participants were administered the following cognitive assessments as part of a larger study: Delis-Kaplan Executive Function System (DKEFS) Color-Word Interference Test and Trail Making. Multivariate analyses of variance were used to examine the relationship between age group, metabolic status, and cognitive performance. Results As expected, older adults performed more poorly than young and middle-aged adults across neurocognitive assessments (p < .05). MetS adults performed more slowly on Color-Word Interference: Inhibition [F(1,114) = 5.26, p = .024, η2 = .05]; however, there were no additional significant differences between groups on cognitive tests in this sample size. Conclusions These findings suggest that aspects of inhibition might be impaired in MetS adults. Future studies aimed at investigating relationships between metabolic risk factors and inhibition may provide insight into effective intervention targets to delay or prevent metabolic syndrome.


2014 ◽  
Vol 39 (7) ◽  
pp. 835-841 ◽  
Author(s):  
Jonathan P. Little ◽  
Mary E. Jung ◽  
Amy E. Wright ◽  
Wendi Wright ◽  
Ralph J.F. Manders

The purpose of this study was to examine the impact of acute high-intensity interval training (HIIT) compared with continuous moderate-intensity (CMI) exercise on postprandial hyperglycemia in overweight or obese adults. Ten inactive, overweight or obese adults (41 ± 11 yrs, BMI = 36 ± 7 kg/m2) performed an acute bout of HIIT (10 × 1 min at approximately 90% peak heart rate (HRpeak) with 1-min recovery periods) or matched work CMI (30 min at approximately 65% HRpeak) in a randomized, counterbalanced fashion. Exercise was performed 2 h after breakfast, and glucose control was assessed by continuous glucose monitoring under standardized dietary conditions over 24 h. Postprandial glucose (PPG) responses to lunch, dinner, and the following day’s breakfast were analyzed and compared with a no-exercise control day. Exercise did not affect the PPG responses to lunch, but performing both HIIT and CMI in the morning significantly reduced the PPG incremental area under the curve (AUC) following dinner when compared with control (HIIT = 110 ± 35, CMI = 125 ± 34, control = 162 ± 46 mmol/L × 2 h, p < 0.05). The PPG AUC (HIIT = 125 ± 53, CMI = 186 ± 55, control = 194 ± 96 mmol/L × 2 h) and the PPG spike (HIIT = Δ2.1 ± 0.9, CMI = Δ3.0 ± 0.9, control = Δ3.0 ± 1.5 mmol/l) following breakfast on the following day were significantly lower following HIIT compared with both CMI and control (p < 0.05). Absolute AUC and absolute glucose spikes were not different between HIIT, CMI, or control for any meal (p > 0.05 for all). We conclude that a single session of HIIT has greater and more lasting effects on reducing incremental PPG when compared with CMI.


2016 ◽  
Vol 237 ◽  
pp. 264-270 ◽  
Author(s):  
Markus J. Duncan ◽  
Guy Faulkner ◽  
Gary Remington ◽  
Kelly Arbour-Nicitopoulos

2016 ◽  
Vol 38 (4) ◽  
pp. 396-408 ◽  
Author(s):  
Christopher J. Brush ◽  
Ryan L. Olson ◽  
Peter J. Ehmann ◽  
Steven Osovsky ◽  
Brandon L. Alderman

The purpose of this study was to examine possible dose–response and time course effects of an acute bout of resistance exercise on the core executive functions of inhibition, working memory, and cognitive flexibility. Twenty-eight participants (14 female; Mage = 20.5 ± 2.1 years) completed a control condition and resistance exercise bouts performed at 40%, 70%, and 100% of their individual 10-repetition maximum. An executive function test battery was administered at 15 min and 180 min postexercise to assess immediate and delayed effects of exercise on executive functioning. At 15 min postexercise, high-intensity exercise resulted in less interference and improved reaction time (RT) for the Stroop task, while at 180 min low- and moderate-intensity exercise resulted in improved performance on plus–minus and Simon tasks, respectively. These findings suggest a limited and task-specific influence of acute resistance exercise on executive function in healthy young adults.


2016 ◽  
Author(s):  
Joanie Caron ◽  
Gregory R. duManoir ◽  
Lawrence Labrecque ◽  
Audrey Chouinard ◽  
Annie Ferland ◽  
...  

AbstractThe aim of this study was to examine the impact of well-controlled uncomplicated type 2 diabetes (T2D) on exercise performance. Six obese sedentary men with T2D and 7 control participants without diabetes matched for age, sex and body mass index were recruited. Anthropometric characteristics, blood samples, resting cardiac and pulmonary functions and maximal oxygen uptake (VO2max) and ventilatory threshold were measured on a first visit. On the four subsequent visits, participants performed step transitions (6 min) of moderate-intensity exercise on an upright cycle ergometer from unloaded pedaling to 80 % of ventilatory threshold. VO2(τVO2) and HR (τHR) kinetics were characterized with a mono-exponential model. VO2max (27.8±4.0 vs. 27.5±5.3 ml kg-1min-1; p=0.95), τVO2(43±6 vs. 43±10 s; p=0.73) and τHR (42±17 vs. 43±13 s; p=0.94) were similar between diabetics and controls respectively. The remaining variables were also similar between groups. These results suggest that well-controlled T2D is not associated with a reduction in VO2max or slower τVO2and τHR.


Author(s):  
Mohibullah Khan ◽  
Alamgir Khan ◽  
Muhammad Zafar Iqbal Butt ◽  
Badar Mohy ud Din ◽  
Abdul Manan ◽  
...  

Purpose: The main purpose of the study was to examine the impact of moderate intensity exercise on blood serum creatinine concentration among the male. Method & Materials: A randomized control trails were conducted for purpose to evaluate the effects of moderate intensity exercise on creatinine level among the subjects (Experimental Group (EG) = 10, Control group (CG). A written informed consent from all the subjects and ethical approval was taken from Gomal University Ethical Review Committee before initiating the study protocols. 5ml blood were taken from all the subjects and each blood sample was marked with separate identification code. Twelve weeks exercise (moderate intensity exercise) protocols was employed on the selected subjects. The collected blood samples were tested and thus the collected results were processed through Statistical Package for Social Sciences (SPSS, Version, 24) by applying Mean and Standard deviation etc. Results & Conclusion: On the basis of analysis, the researcher concluded that inferentially there is no significant effect of moderate intensity exercise on BMI and Creatinine of the subjects but descriptively the experimental group shows better results in BMI and Creatinine (after the treatment)


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