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Exercise intensity and physical fitness modulate lipoproteins profile during acute aerobic exercise session.

ABSTRACT: Physical inactivity has emerged as an important cardiometabolic risk factor; however, the beneficial impacts of physical exercise according physical fitness status are still unclear. To analyze the lipoproteins and immune-endocrine response to acute aerobic exercise sessions performed at different intensities according physical fitness status and evaluated the gene expression in monocyte cells. Twelve individuals, divided into Low and High VO2max, performed three randomized acute exercise sessions at low (<60% VO2max), moderate (60-75% VO2max), and high (>90% VO2max) intensities. Blood samples were collected pre, immediately post, and 60?minutes post-exercise to analyze NEFA, triacylglycerol, non-HDL-c, HDL-c, PAI-1, leptin and adiponectin concentrations. Blood samples were collected from another set of twelve individuals for use in monocyte cell cultures to analyze L-CAT, CETP, and AMPK gene expressions. Low VO2max group pre-exercise exhibited higher postprandial leptin and total cholesterol concentrations than High VO2max group (p?

SUBMITTER: Antunes BM

PROVIDER: S-EPMC7058045 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Exercise intensity and physical fitness modulate lipoproteins profile during acute aerobic exercise session.

Antunes B M BM Rossi F E FE Oyama L M LM Rosa-Neto J C JC Lira F S FS

Scientific reports 20200305 1

Physical inactivity has emerged as an important cardiometabolic risk factor; however, the beneficial impacts of physical exercise according physical fitness status are still unclear. To analyze the lipoproteins and immune-endocrine response to acute aerobic exercise sessions performed at different intensities according physical fitness status and evaluated the gene expression in monocyte cells. Twelve individuals, divided into Low and High VO<sub>2max,</sub> performed three randomized acute exer ...[more]

PMID: 32139762

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Project description:ObjectivesThe aims of this study were to use functional near-infrared spectroscopy (fNIRS) to determine whether cardiovascular fitness levels modulate the activation of the mirror neuron system (MNS) under table-setting tasks in non-exercise situation, to replicate the study that positive effect of acute moderate-intensity exercise on the MNS and investigate whether cardiovascular fitness levels modulates the effect of exercise on the activation of the MNS.MethodsThirty-six healthy college-aged participants completed a maximal graded exercise test (GXT) and were categorized as high, moderate, or low cardiovascular fitness. Participants then performed table-setting tasks including an action execution task (EXEC) and action observation task (OBS) prior to (PRE) and after (POST) either a rest condition (CTRL) or a cycling exercise condition (EXP). The EXP condition consisted of a 5-min warm-up, 15-min moderate-intensity exercise (65% VO2 max), and 5-min cool-down.ResultsNo significant differences were observed for Oxy-Hb and Deoxy-Hb between different cardiovascular fitness levels in the EXEC or OBS tasks in the non-exercise session. But there were significant improvements of oxygenated hemoglobin (Oxy-Hb) in the inferior frontal gyrus (IFG) and pre-motor area (PMC) regions under the OBS task following the acute moderate exercise. Particularly, the improvements (Post-Pre) of Δ Oxy-Hb were mainly observed in high and low fitness individuals. There was also a significant improvement of deoxygenated hemoglobin (Deoxy-Hb) in the IPL region under the OBS task. The following analysis indicated that exercise improved Δ Deoxy-Hb in high fitness individuals.ConclusionThis study indicated that the activation of MNS was not modulated by the cardiovascular fitness levels in the non-exercise situation. We replicated the previous study that moderate exercise improved activation of MNS; we also provided the first empirical evidence that moderate-intensity exercise positively affects the MNS activation in college students of high and low cardiovascular fitness levels.

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Exercise intensity and physical fitness modulate lipoproteins profile during acute aerobic exercise session.

Publications

Exercise intensity and physical fitness modulate lipoproteins profile during acute aerobic exercise session.

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