scholarly journals Moderating Influence of Dominant Attentional Style and Exercise Intensity on Responses to Asynchronous Music

2013 ◽  
Vol 35 (6) ◽  
pp. 625-643 ◽  
Author(s):  
Jasmin C. Hutchinson ◽  
Costas I. Karageorghis
Keyword(s):  
Exercise Intensity ◽  
Attentional Focus ◽  
Moderate Intensity ◽  
Psychological Responses ◽  
Moderate Intensity Exercise ◽  
High Exercise Intensity ◽  
Motivational Condition ◽  
Attentional Style ◽  
And Control ◽  
Control State

We examined independent and combined influences of asynchronous music and dominant attentional style (DAS) on psychological and psychophysical variables during exercise using mixed methods. Participants (N = 34) were grouped according to DAS and completed treadmill runs at three intensities (low, moderate, high) crossed with three music conditions (motivational, oudeterous, no-music control). State attentional focus shifted from dissociative to associative with increasing intensity and was most aligned with DAS during moderate-intensity exercise. Both music conditions facilitated dissociation at low-to-moderate intensities. At high exercise intensity, both music conditions were associated with reduced RPE among participants with an associative DAS. Dissociators reported higher RPE overall during moderate and high intensities. Psychological responses were most positive in the motivational condition, followed by oudeterous and control. Findings illustrate the relevance of individual differences in DAS as well as task intensity and duration when selecting music for exercise.

scholarly journals Objective and subjective measures of exercise intensity during thermo-neutral and hot yoga

2018 ◽  
Vol 43 (4) ◽  
pp. 397-402 ◽  
Author(s):  
Corinne N. Boyd ◽  
Stephanie M. Lannan ◽  
Micah N. Zuhl ◽  
Ricardo Mora-Rodriguez ◽  
Rachael K. Nelson
Keyword(s):  
Oxygen Consumption ◽  
Light Intensity ◽  
Exercise Intensity ◽  
Perceived Exertion ◽  
Maximal Oxygen Consumption ◽  
Rating Of Perceived Exertion ◽  
Moderate Intensity ◽  
Subjective Measures ◽  
Moderate Intensity Exercise ◽  
Constant Intensity

While hot yoga has gained enormous popularity in recent years, owing in part to increased environmental challenge associated with exercise in the heat, it is not clear whether hot yoga is more vigorous than thermo-neutral yoga. Therefore, the aim of this study was to determine objective and subjective measures of exercise intensity during constant intensity yoga in a hot and thermo-neutral environment. Using a randomized, crossover design, 14 participants completed 2 identical ∼20-min yoga sessions in a hot (35.3 ± 0.8 °C; humidity: 20.5% ± 1.4%) and thermo-neutral (22.1 ± 0.2 °C; humidity: 27.8% ± 1.6%) environment. Oxygen consumption and heart rate (HR) were recorded as objective measures (percentage of maximal oxygen consumption and percentage of maximal HR (%HRmax)) and rating of perceived exertion (RPE) was recorded as a subjective measure of exercise intensity. There was no difference in exercise intensity based on percentage of maximal oxygen consumption during hot versus thermo-neutral yoga (30.9% ± 2.3% vs. 30.5% ± 1.8%, p = 0.68). However, exercise intensity was significantly higher during hot versus thermo-neutral yoga based on %HRmax (67.0% ± 2.3% vs. 60.8% ± 1.9%, p = 0.01) and RPE (12 ± 1 vs. 11 ± 1, p = 0.04). According to established exercise intensities, hot yoga was classified as light-intensity exercise based on percentage of maximal oxygen consumption but moderate-intensity exercise based on %HRmax and RPE while thermo-neutral yoga was classified as light-intensity exercise based on percentage of maximal oxygen uptake, %HRmax, and RPE. Despite the added hemodynamic stress and perception that yoga is more strenuous in a hot environment, we observed similar oxygen consumption during hot versus thermo-neutral yoga, classifying both exercise modalities as light-intensity exercise.

scholarly journals Exercise intensity and the protection from postprandial vascular dysfunction in adolescents

2015 ◽  
Vol 308 (11) ◽  
pp. H1443-H1450 ◽  
Author(s):  
B. Bond ◽  
P. E. Gates ◽  
S. R. Jackman ◽  
L. M. Corless ◽  
C. A. Williams ◽  
...  
Keyword(s):  
Endothelial Function ◽  
Exercise Intensity ◽  
Acute Exercise ◽  
Vascular Dysfunction ◽  
Reactive Hyperemia ◽  
Total Antioxidant Status ◽  
Doppler Imaging ◽  
Moderate Intensity ◽  
Moderate Intensity Exercise ◽  
High Intensity Interval

Acute exercise transiently improves endothelial function and protects the vasculature from the deleterious effects of a high-fat meal (HFM). We sought to identify whether this response is dependent on exercise intensity in adolescents. Twenty adolescents (10 male, 14.3 ± 0.3 yr) completed three 1-day trials: 1) rest (CON); 2) 8 × 1 min cycling at 90% peak power with 75 s recovery [high-intensity interval exercise (HIIE)]; and 3) cycling at 90% of the gas exchange threshold [moderate-intensity exercise (MIE)] 1 h before consuming a HFM (1.50 g/kg fat). Macrovascular and microvascular endothelial function was assessed before and immediately after exercise and 3 h after the HFM by flow-mediated dilation (FMD) and laser Doppler imaging [peak reactive hyperemia (PRH)]. FMD and PRH increased 1 h after HIIE [ P < 0.001, effect size (ES) = 1.20 and P = 0.048, ES = 0.56] but were unchanged after MIE. FMD and PRH were attenuated 3 h after the HFM in CON ( P < 0.001, ES = 1.78 and P = 0.02, ES = 0.59). FMD remained greater 3 h after the HFM in HIIE compared with MIE ( P < 0.001, ES = 1.47) and CON ( P < 0.001, ES = 2.54), and in MIE compared with CON ( P < 0.001, ES = 1.40). Compared with CON, PRH was greater 3 h after the HFM in HIIE ( P = 0.02, ES = 0.71) and MIE ( P = 0.02, ES = 0.84), with no differences between HIIE and MIE ( P = 0.72, ES = 0.16). Plasma triacylglycerol concentration and total antioxidant status concentration were not different between trials. We conclude that exercise intensity plays an important role in protecting the vasculature from the deleterious effects of a HFM. Performing HIIE may provide superior vascular benefits than MIE in adolescent groups.

scholarly journals Great Expectations: A Qualitative Analysis of the Factors That Influence Affective Forecasts for Exercise

2020 ◽  
Vol 17 (2) ◽  
pp. 551 ◽  
Author(s):  
Amanda J. Calder ◽  
Elaine A. Hargreaves ◽  
Ken Hodge
Keyword(s):  
Qualitative Analysis ◽  
Thematic Analysis ◽  
Exercise Intensity ◽  
Moderate Intensity ◽  
Exercise Session ◽  
Design Strategies ◽  
Moderate Intensity Exercise ◽  
Great Expectations ◽  
Exercise Participation ◽  
Exercise Environment

The extent to which people expect to feel pleasure during exercise is proposed to influence an individual’s decision to be active. In order to identify the factors that shape this affective forecast for exercise, this study explored what people think about when creating their affective forecast for exercise. Thirty-one inactive participants provided an affective forecast for a moderate intensity exercise session using the global affective forecast questionnaire. Immediately after, they were asked a series of questions to verbally explain what they were thinking about in order to generate their forecast. Thematic analysis identified four themes relating to the exercise intensity, the exercise outcomes, the exercise environment, and the enjoyment of exercise that influenced affective forecast creation. Exercise practitioners should design strategies to manipulate these factors, and structure exercise environments to support a positive affective forecast and better motivate exercise participation.

Exercise intensity dependent relevance of protective textile properties for human thermo-physiology

2016 ◽  
Vol 87 (12) ◽  
pp. 1425-1434 ◽  
Author(s):  
Piero Fontana ◽  
Fabio Saiani ◽  
Marc Grütter ◽  
Jean-Philippe Croset ◽  
André Capt ◽  
...  
Keyword(s):  
Functional Properties ◽  
Exercise Intensity ◽  
Human Subject ◽  
Core Body Temperature ◽  
Physiological Responses ◽  
Moderate Intensity ◽  
Moderate Intensity Exercise ◽  
Exercise Tests ◽  
Physiological Relevance ◽  
Low Intensity Exercise

During firefighting, thermoregulation is challenged due to a combination of harsh environmental conditions, high metabolic rates and personal protective clothing (PPC). Consequently, investigations of thermoregulation in firefighters should not only consider climate and exercise intensity, but technical properties of textiles too. Therefore, laboratory textile performance simulations may provide additional insights into textile-dependent thermoregulatory responses to exercise. In order to investigate the thermo-physiological relevance of textile properties and to test how different garments affect thermoregulation at different exercise intensities, we analyzed the results of a standard laboratory test and human subject trials by relating functional properties of textiles to thermo-physiological responses. Ten professional, healthy, male firefighters (age: 43 ± 6 y, weight: 84.3 ± 10.3kg, height: 1.79 ± 0.05m) performed low and moderate intensity exercise wearing garments previously evaluated with a sweating torso system to characterize thermal and evaporative properties. Functional properties of PPC and the control garment differed markedly. Consequently, skin temperature was higher using PPC at both exercise intensities (low: 36.27 ± 0.32 versus 36.75 ± 0.15℃, P < 0.05; moderate: 36.53 ± 0.34 versus 37.18 ± 0.23℃, P < 0.001), while core body temperature was only higher for PPC at moderate (37.54 ± 0.24 versus 37.83 ± 0.27℃, P < 0.05), but not low-intensity exercise (37.26 ± 0.21 versus 37.21 ± 0.19, P = 0.685). Differences in thermal and evaporative properties between textiles are reflected in thermo-physiological responses during human subject trials. However, an appropriate exercise intensity has to be chosen in order to challenge textile performance during exercise tests.

Effects of sleep deprivation on thermoregulation during exercise

1984 ◽  
Vol 246 (1) ◽  
pp. R72-R77 ◽  
Author(s):  
M. N. Sawka ◽  
R. R. Gonzalez ◽  
K. B. Pandolf
Keyword(s):  
Sleep Deprivation ◽  
Sweat Rate ◽  
Thermal Conductance ◽  
Cycle Ergometer ◽  
Moderate Intensity ◽  
Control Test ◽  
Moderate Intensity Exercise ◽  
Ergometer Exercise ◽  
Total Body ◽  
And Control

Five fit men completed a practice, control, and sleep deprivation exercise test. Two nights of normal sleep preceded the control test, and 33 h of wakefulness preceded the sleep deprivation test. These tests consisted of 20 min of rest followed by 40 min of cycle-ergometer exercise (50% of peak O2 uptake, VO2) in a temperate (ambient temperature, 28 degrees C; relative humidity, 30%)-environment. Esophageal temperature (Tes), local sweat rate (mds), and chest thermal conductance (kch) were continuously measured. During exercise a 0.7 and 0.5 degrees C rise in Tes was found for the sleep deprivation and control tests, respectively. This increase in Tes values from rest to the end of exercise was greater (P = 0.08) for the sleep deprivation than control test. Total body sweat rate, calculated from Potter balance measurements, was 27% less (P less than 0.01) for the sleep deprivation than the control test. Both mds and kch values were lower (P less than 0.05) during the final 20 min of exercise for the sleep deprivation than control test. Final exercise mds values were 19% lower (P less than 0.05) for the sleep deprivation than control test. An asynchronous rather than a normal synchronous mds pattern was frequently observed during the sleep deprivation test. During the sleep deprivation test, the mds sensitivity (delta mds X delta Tes-1) was 38% lower (P less than 0.01) and kch sensitivity (delta kch X delta Tes-1) was 42% lower (P less than 0.05) than during the control test. These data indicate that sleep deprivation decreases evaporative and dry heat loss during moderate-intensity exercise.

scholarly journals High-intensity exercise and cognitive function in cognitively normal older adults: a pilot randomised clinical trial

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Belinda M. Brown ◽  
Natalie Frost ◽  
Stephanie R. Rainey-Smith ◽  
James Doecke ◽  
Shaun Markovic ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Cardiorespiratory Fitness ◽  
Exercise Intensity ◽  
High Intensity ◽  
Randomised Clinical Trial ◽  
Trial Registration ◽  
Moderate Intensity ◽  
Moderate Intensity Exercise ◽  
Cognitively Normal ◽  
Exercise Interventions

Abstract Background Physical inactivity has been consistently linked to increased risk of cognitive decline; however, studies examining the impact of exercise interventions on cognition have produced inconsistent findings. Some observational studies suggest exercise intensity may be important for inducing cognitive improvements; however, this has yet to be thoroughly examined in older adult cohorts. The objective of the current study was to evaluate the effect of systematically manipulated high-intensity and moderate-intensity exercise interventions on cognition. Methods This multi-arm pilot randomised clinical trial investigated the effects of 6 months of high-intensity exercise and moderate-intensity exercise, compared with an inactive control, on cognition. Outcome measures were assessed at pre- (baseline), post- (6 months), and 12 months post-intervention. Ninety-nine cognitively normal men and women (aged 60–80 years) were enrolled from October 2016 to November 2017. Participants that were allocated to an exercise group (i.e. high-intensity or moderate-intensity) engaged in cycle-based exercise two times per week for 6 months. Cognition was assessed using a comprehensive neuropsychological test battery. Cardiorespiratory fitness was evaluated by a graded exercise test. Results There was a dose-dependent effect of exercise intensity on cardiorespiratory fitness, whereby the high-intensity group experienced greater increases in fitness than the moderate-intensity and control groups. However, there was no direct effect of exercise on cognition. Conclusions We did not observe a direct effect of exercise on cognition. Future work in this field should be appropriately designed and powered to examine factors that may contribute to individual variability in response to intervention. Trial registration This study is registered with the Australian New Zealand Clinical Trials Registry (ACTRN12617000643370). Registered on 3 May 2017—retrospectively registered. https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=372780

scholarly journals Comparable effects of moderate intensity exercise on changes in anorectic gut hormone levels and energy intake to high intensity exercise

2009 ◽  
Vol 203 (3) ◽  
pp. 357-364 ◽  
Author(s):  
Shin-ya Ueda ◽  
Takahiro Yoshikawa ◽  
Yoshihiro Katsura ◽  
Tatsuya Usui ◽  
Shigeo Fujimoto
Keyword(s):  
Energy Intake ◽  
Exercise Intensity ◽  
High Intensity ◽  
Peptide Yy ◽  
Moderate Intensity ◽  
Exercise Session ◽  
Moderate Intensity Exercise ◽  
Intensity Effect ◽  
Hormone Levels ◽  
Gut Hormone

There is growing interest in the effects of exercise on plasma gut hormone levels and subsequent energy intake (EI) but the effects of mode and exercise intensity on anorectic hormone profiles on subsequent EI remain to be elucidated. We aimed to investigate whether circulating peptide YY3–36 (PYY3–36) and glucagon-like peptide-1 (GLP-1 or GCG as listed in the HUGO Database) levels depend on exercise intensity, which could affect subsequent EI. Ten young male subjects (mean±s.d., age: 23.4±4.3 years, body mass index: 22.5±1.0 kg/m2, and maximum oxygen uptake (VO2 max): 45.9±8.5 ml/kg per min) received a standardized breakfast, which was followed by constant cycling exercise at 75% VO2 max (high intensity session), 50% VO2 max (moderate intensity session), or rest (resting session) for 30 min. At lunch, a test meal was presented, and EI was calculated. Blood samples were obtained during three sessions for measurements of glucose, insulin, PYY3–36, and GLP-1, which includes GLP-1 (7–36) amide and GLP-1 (9–36) amide. Increases in blood PYY3–36 levels were dependent on the exercise intensity (effect of session: P<0.001 by two-way ANOVA), whereas those in GLP-1 levels were similar between two different exercise sessions. Of note, increase in area under the curve values for GLP-1 levels was negatively correlated with decrease in the EI in each exercise session (high: P<0.001, moderate: P=0.002). The present findings raise the possibility that each gut hormone exhibits its specific blood kinetics in response to two different intensities of exercise stimuli and might play differential roles in regulation of EI after exercise.

scholarly journals Affective Response to Exercise and Preferred Exercise Intensity Among Adolescents

2015 ◽  
Vol 12 (4) ◽  
pp. 546-552 ◽  
Author(s):  
Margaret Schneider ◽  
Priel Schmalbach
Keyword(s):  
Exercise Intensity ◽  
Perceived Exertion ◽  
Cardiovascular Health ◽  
Affective Response ◽  
Work Rate ◽  
Moderate Intensity ◽  
Ratings Of Perceived Exertion ◽  
Moderate Intensity Exercise ◽  
Fitness Benefits ◽  
Response To Exercise

Background:Little information exists as to the exercise intensity that adolescents enjoy and whether identifiable subgroups of adolescents will choose higher-intensity exercise.Methods:Healthy adolescents (N = 74; mean age = 11.09 years) completed a cardiorespiratory fitness test, a moderate-intensity exercise task, and an exercise task at an intensity that felt “good.” Heart rate (HR), work rate (WR), and ratings of perceived exertion (RPE) were assessed every 3 minutes.Results:During the “feels good” task, adolescents exercised at a HR recognized as beneficial for cardiovascular health (mean HR = 66% to 72% of HR at VO2peak). Adolescents who experienced a positive affective shift during the moderate-intensity task engaged in higher-intensity exercise during the feels-good task as compared with those whose affective response to moderate-intensity exercise was neutral or negative (76% of peak HR vs. 70% of peak HR, P < .01).There was no difference between groups in RPE.Conclusions:Adolescents tend to select an exercise intensity associated with fitness benefits when afforded the opportunity to choose an intensity that feels good. An identified subgroup engaged in higher-intensity exercise without a commensurate perception of working harder. Encouraging adolescents to exercise at an intensity that feels good may increase future exercise without sacrificing fitness.

Relation of Low and Moderate Intensity Exercise with Acute Mood Change in College Joggers

1998 ◽  
Vol 87 (2) ◽  
pp. 611-621 ◽  
Author(s):  
Bonnie G. Berger ◽  
David R. Owen
Keyword(s):  
Exercise Intensity ◽  
Mood States ◽  
Moderate Intensity ◽  
Profile Of Mood States ◽  
State Trait Anxiety Inventory ◽  
Maximum Heart Rate ◽  
Short Term ◽  
Moderate Intensity Exercise ◽  
Post Exercise ◽  
Before And After

This study investigated a possible relationship between exercise intensity and mood alteration that commonly is associated with physical activity. 91 college students completed the Profile of Mood States before and after 20 min. of jogging at three intensities: 55%, 75%, and 79% of age-adjusted maximum heart rate on different occasions. Exercisers also completed a demographic inventory, a Lie Scale, and the State-Trait Anxiety Inventory. Contrary to our expectations, the interaction between exercise intensity and pre-post mood benefits was not significant. Supporting the manipulation of exercise intensity, the univariate interaction between exercise intensity and pre-post exercise scores on Fatigue was significant. Joggers reported short-term mood benefits on the combined subscales of the Profile of Mood States, and each subscale contributed to the benefits. Thus, regardless of the low- or moderate-intensity, participants reported that they “felt better” after exercising.

scholarly journals Measuring Moderate-Intensity Exercise with the Apple Watch: Validation Study (Preprint)

2017 ◽  
Author(s):  
Grant Abt ◽  
James Bray ◽  
Amanda Clare Benson
Keyword(s):  
Oxygen Consumption ◽  
Exercise Intensity ◽  
Intraclass Correlation ◽  
Maximal Oxygen Consumption ◽  
Mean Difference ◽  
Moderate Intensity ◽  
Validity And Reliability ◽  
Moderate Intensity Exercise ◽  
Green Exercise ◽  
Left Hand

BACKGROUND Moderate fitness levels and habitual exercise have a protective effect for cardiovascular disease, stroke, type 2 diabetes, and all-cause mortality. The Apple Watch displays exercise completed at an intensity of a brisk walk or above using a green “exercise” ring. However, it is unknown if the exercise ring accurately represents an exercise intensity comparable to that defined as moderate-intensity. In order for health professionals to prescribe exercise intensity with confidence, consumer wearable devices need to be accurate and precise if they are to be used as part of a personalized medicine approach to disease management. OBJECTIVE The aim of this study was to examine the validity and reliability of the Apple Watch for measuring moderate-intensity exercise, as defined as 40-59% oxygen consumption reserve (VO2R). METHODS Twenty recreationally active participants completed resting oxygen consumption (VO2rest) and maximal oxygen consumption (VO2 max) tests prior to a series of 5-minute bouts of treadmill walking at increasing speed while wearing an Apple Watch on both wrists, and with oxygen consumption measured continuously. Five-minute exercise bouts were added until the Apple Watch advanced the green “exercise” ring by 5 minutes (defined as the treadmill inflection speed). Validity was examined using a one-sample t-test, with interdevice and intradevice reliability reported as the standardized typical error and intraclass correlation. RESULTS The mean %VO2R at the treadmill inflection speed was 30% (SD 7) for both Apple Watches. There was a large underestimation of moderate-intensity exercise (left hand: mean difference = -10% [95% CI -14 to -7], d=-1.4; right hand: mean difference = -10% [95% CI -13 to -7], d=-1.5) when compared to the criterion of 40% VO2R. Standardized typical errors for %VO2R at the treadmill inflection speed were small to moderate, with intraclass correlations higher within trials compared to between trials. CONCLUSIONS The Apple Watch threshold for moderate-intensity exercise was lower than the criterion, which would lead to an overestimation of moderate-intensity exercise minutes completed throughout the day.

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