Comparison of affective responses during and after low volume high-intensity interval exercise, continuous moderate- and continuous high-intensity exercise in active, untrained, healthy males

Background: This study analyzed the effect of walking breaks or low-volume high-intensity interval exercise (LV-HIIE) on markers of metabolic syndrome relative to a day of prolonged sitting. Methods: Twenty-five adults with excess body fat participated in this crossover trial: (1) 10-hour sitting day (SIT), (2) LV-HIIE followed by a sitting day (EX+SIT), and (3) sitting day with 5-minute walking breaks for every 20 minutes (SIT+WB). Glucose and blood pressure (BP) were measured before and 1 hour after 4 meals and 2 hours after lunch. Triglycerides were measured at baseline, 2, and 3.5 hours after lunch. Generalized mixed models were used to identify differences in the area under the curve (AUC) of BP and incremental AUC (iAUC) of glucose and triglycerides among the sessions. Results: iAUC-glucose was lower in SIT+WB than SIT (β = −35.3 mg/dL·10 h; 95% confidence interval, −52.5 to −8.2). AUC-diastolic BP was lower in SIT+WB than SIT (β = −14.1 mm Hg·10 h; 95% confidence interval, −26.5 to −1.6) and EX+SIT (β = −14.5 mm Hg·10 h; 95% confidence interval, −26.9 to −2.1). There were no differences in triglycerides and systolic BP levels among the sessions. Conclusion: Adults with excess body fat present lower glucose and diastolic BP during a day with breaks in sitting time compared with a prolonged sitting day with or without an LV-HIIE session.

Download Full-text

Intensity Matters: High-intensity Interval Exercise Enhances Motor Cortex Plasticity More Than Moderate Exercise

Cerebral Cortex ◽

10.1093/cercor/bhz075 ◽

2019 ◽

Vol 30 (1) ◽

pp. 101-112 ◽

Cited By ~ 9

Author(s):

Sophie C Andrews ◽

Dylan Curtin ◽

Ziarih Hawi ◽

Jaeger Wongtrakun ◽

Julie C Stout ◽

...

Keyword(s):

Motor Cortex ◽

High Intensity ◽

Therapeutic Potential ◽

Intracortical Inhibition ◽

High Intensity Exercise ◽

Moderate Intensity ◽

Moderate Intensity Exercise ◽

Exercise Interventions ◽

Interval Exercise ◽

High Intensity Interval

Abstract A single bout of cardiovascular exercise can enhance plasticity in human cortex; however, the intensity required for optimal enhancement is debated. We investigated the effect of exercise intensity on motor cortex synaptic plasticity, using transcranial magnetic stimulation. Twenty healthy adults (Mage = 35.10 ± 13.25 years) completed three sessions. Measures of cortico-motor excitability (CME) and inhibition were obtained before and after a 20-min bout of either high-intensity interval exercise, moderate-intensity continuous exercise, or rest, and again after intermittent theta burst stimulation (iTBS). Results showed that high-intensity interval exercise enhanced iTBS plasticity more than rest, evidenced by increased CME and intracortical facilitation, and reduced intracortical inhibition. In comparison, the effect of moderate-intensity exercise was intermediate between high-intensity exercise and rest. Importantly, analysis of each participant’s plasticity response profile indicated that high-intensity exercise increased the likelihood of a facilitatory response to iTBS. We also established that the brain-derived neurotrophic factor Val66Met polymorphism attenuated plasticity responses following high-intensity exercise. These findings suggest that high-intensity interval exercise should be considered not only when planning exercise interventions designed to enhance neuroplasticity, but also to maximize the therapeutic potential of non-invasive brain stimulation. Additionally, genetic profiling may enhance efficacy of exercise interventions for brain health.

Download Full-text

Acute Low-Volume High-Intensity Interval Exercise and Continuous Moderate-Intensity Exercise Elicit a Similar Improvement in 24-h Glycemic Control in Overweight and Obese Adults

Frontiers in Physiology ◽

10.3389/fphys.2016.00661 ◽

2017 ◽

Vol 7 ◽

Cited By ~ 7

Author(s):

Lewan Parker ◽

Christopher S. Shaw ◽

Lauren Banting ◽

Itamar Levinger ◽

Karen M. Hill ◽

...

Keyword(s):

Glycemic Control ◽

High Intensity ◽

Moderate Intensity ◽

Moderate Intensity Exercise ◽

Obese Adults ◽

Interval Exercise ◽

Similar Improvement ◽

Low Volume ◽

High Intensity Interval

Download Full-text

Affective Responses during High-Intensity Interval Exercise Compared with Moderate-Intensity Continuous Exercise in Inactive Women

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18105393 ◽

2021 ◽

Vol 18 (10) ◽

pp. 5393

Author(s):

I-Hua Chu ◽

Pei-Tzu Wu ◽

Wen-Lan Wu ◽

Hsiang-Chi Yu ◽

Tzu-Cheng Yu ◽

...

Keyword(s):

High Intensity ◽

Well Being ◽

Affective Responses ◽

Rating Of Perceived Exertion ◽

Moderate Intensity ◽

Exercise Session ◽

Normal Body Mass Index ◽

Interval Exercise ◽

Continuous Exercise ◽

High Intensity Interval

This study aimed to investigate the effects of an acute bout of high-intensity interval exercise (HIIE) and moderate-intensity continuous exercise (MICE) on affective responses in inactive women. Thirty women with normal body mass index (BMI) and 30 women with BMI ≥ 24 kg/m2 participated in the study. All participants completed a graded exercise test and performed two exercise sessions (HIIE and MICE) in random order. Affective responses were assessed during and after each exercise session, using the rating of perceived exertion (RPE), Self-Assessment-Manikin (SAM), and Subjective Exercise Experience Scale (SEES). The results showed that the RPE scores were significantly higher in HIIE than in MICE. HIIE resulted in significantly lower pleasure scores using the SAM while arousal and dominance scores were significantly higher with HIIE compared to MICE. Positive well-being scores using the SEES were significantly lower with HIIE and both psychological distress and fatigue scores were significantly higher with HIIE. The results showed that affective responses with MICE were more positive than with HIIE, but no differences were found between normal and overweight/obese women. Based on these results, MICE may be a more acceptable exercise program for inactive women regardless of their weight status.

Download Full-text