Effects of High Intensity Interval Training on Physiological Variables of University Students

The aim of this study was to examine the physical and selected performance characteristics of 9-week High-Intensity Interval Training (HIIT) on sedentary university students. Participants were separated two groups as HIIT and control group (CG). HIIT group applied training 3 times a week for 9 weeks. CG was not applied any training. Before and after HIIT training program, the subjects were applied to age, height, body weight (BW), body mass index (BMI) tests for physical parameters and standing long jump (SLJ), vertical jump (VJ), 10-20 m sprint, T agility test (TAT), star excursion balance test (SEBT), running-based anaerobic sprint test (RAST) for performance parameters. Multiple analysis of variance (MANOVA) was used to analyze of inter-group, intra group and the effect of training in repeated measurements. Bonferroni test was used for Post Hoc comparisons; the significance level was accepted as 0.05. There was a significant difference in BW, BMI and all performance parameters in favor of HIIT group. HIIT provided effective development to physical and performance characteristics of university students.

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Effects of High-Intensity Interval Training on Improving Arterial Stiffness in Chinese Normal Weight Obese Female University Students: A Pilot Randomized Controlled Trial

10.21203/rs.3.rs-920357/v1 ◽

2021 ◽

Author(s):

Jingyun Hu ◽

Lei Zhu ◽

Ruoyu Yang ◽

Liyan Wang ◽

Leichao Liang ◽

...

Keyword(s):

Body Composition ◽

Arterial Stiffness ◽

University Students ◽

Lipid Profile ◽

High Intensity ◽

Blood Lipids ◽

Interval Training ◽

Normal Weight ◽

High Intensity Interval Training ◽

High Intensity Interval

Abstract Background: High intensity interval training (HIIT) has been reported to exert better effects on cardiovascular fitness in obesity, but little known about the arterial stiffness (AS) in normal weight obesity (NWO) females. Thus, this study investigated the changes of body composition, heart rate (HR), blood pressure (BP), blood lipids as well as the parameters of propensity for AS (arterial velocity pulse index (AVI) and arterial pressure volume index (API)).Methods: Forty NWO female university students were randomly assigned to the control group (n=20) or the HIIT group (30 minutes at 90% HRmax, n=20). The participants in HIIT group accepted a four-week HIIT intervention for five days a week. The above parameters of body composition, cardiometabolic biomarkers, lipid profile, and AS were assessed before and after the HIIT intervention. Results: HIIT significantly improved the body composition in decreasing the BMI (p=0.001), BF% (p<0.001), BFM (p<0.001), LBFM (p<0.001), LMC (p=0.016), and Obesity degree (p=0.001), and increased the SMM (p=0.020), Protein content (p=0.035), TBW (p=0.017), FFM (p=0.019), BCM (p=0.020), and Inbody score (p<0.001). HIIT also affected the cardiometabolic biomarkers by decreasing the HR (p=0.001), SBP (p<0.001), and DBP (p<0.001). As for the lipid profile, HIIT obviously ameliorated the blood lipids metabolism by decreasing the levels of TC (p=0.001), TG (p<0.001), LDL (p<0.001), and TC/HDL (p<0.001), and increasing the levels of HDL (p<0.001). In addition, the AS was improved by HIIT intervention through decreasing the AVI (p<0.001) and API (p<0.001).Conclusions: Our results provided herein demonstrate that this pattern of a 4-week HIIT had a positive impact on physical fitness in the aspect of body composition, lipid profile, and cardiovascular function in NWO female university students.Trial registration: ChiCTR2100050711. Registered 3 September 2021. Retrospectively registered.

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Effect of high intensity interval training under hypoxic conditions in a normobaric environment on moderately trained university students’ antioxidant status

Physical Education of Students ◽

10.15561/20755279.2019.0501 ◽

2019 ◽

Vol 23 (5) ◽

pp. 217-222 ◽

Cited By ~ 1

Author(s):

M.S. Akgul ◽

M. Koz

Keyword(s):

Oxidative Stress ◽

University Students ◽

High Intensity ◽

Interval Training ◽

High Intensity Interval Training ◽

Dietary Practices ◽

Hypoxic Conditions ◽

Antioxidant Defence System ◽

Significant Change ◽

High Intensity Interval

Purpose: The effects of high intensity interval exercises on antioxidant defence system are not clear. Since there is an evident lack of studies focused on oxidative stress in moderately trained males following high intensity interval training, we investigated oxidative stress markers (malondialdehyde [MDA], catalase [CAT], glutathione peroxidase [GPX], superoxide dismutase [SOD]) by completing a high intensity interval training program (HIITP) under hypoxic and normoxic conditions in a normobaric environment. Material: The study was carried out on moderately trained university students who had regular exercising habits. The participants completed 8-week wingate based high intensity interval training under normoxic and hypoxic conditions (2500 m.) in the normobaric environment. They were instructed to maintain their normal dietary practices during the study not to take any antioxidant containing vitamin tablets. Results: The interaction effect (time×group) for SOD (p=0.230), CAT (p=0.736), GPX (p=0.517), and MDA (p=0.596), revealed no significant change in repeated response. Conclusions: Although 8 weeks of high-intensity interval training significantly affected only SOD and GPX (p<0.05), the normoxic and hypoxic conditions did not present any significant change between treatments.

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