Comparing HICT and MICT for Health Improvements in Overweight Young Adults

Overweight

high intensity circuit training, moderate intensity continuous training, overweight, young adult male

The increasing prevalence of overweight and obesity is becoming a concern worldwide as it is associated with the increased prevalence of non-communicable diseases. One of the main reasons for this problem is that more adults did not fulfill the weekly physical activity recommendations, with the lack of time and motivation as the main factor. This study aims to compare the effectiveness of a high-intensity circuit training program and the more familiar moderate-intensity continuous training in improving body composition, cardiorespiratory fitness, lipid profile, oxidative stress, and inflammatory markers in young adult males. At the same time, it also explores its adherence through its enjoyment scale and gradual changes in supervision. This experimental study compares pre- and post-tests in the two groups. 3-days food records and 7-days physical activity will be measured monthly as the confounding factors.

* Participants will be recruited consecutively via online forms distributed throughout universities and networks across Jakarta and its surrounding area. Interested individuals will go through early screening. Eligible candidates will then complete an initial assessment at the research site. * Research assistants will use standard operational procedures for each assessment. The training for research assistants will be done before data collection. One group of research assistants are responsible for main outcome data collection. The researcher is responsible for data analysis. Continuous evaluations will be done weekly to improve the research process. * Sample size is measured from the 6-research outcomes using the sample size calculation formula for evaluating the mean difference between two variables in repeated measurements. * Eligible candidates who passed the initial assessment will be randomly divided into HICT (intervention) and MICT (control). The 12-week exercise program in both groups will change gradually in volume, intensity, and supervision. Both volume and intensity will be increased according to heart rate targets. Supervision will decrease gradually from fully supervised in the first 4 weeks, partially supervised in the second 4 weeks, and no supervision in the third 4 weeks. * Data will be collected and electronically recorded during each training session at the research site by the researcher and research assistants. This data includes time, heart rate, blood pressure, rating of perceived exertion (Borg Scale), training intensity, weight used, and enjoyment (PACES). * Subjects are encouraged to report any problem during intervention via online messaging or during on-site sessions to the research assistants. The reports will be documented in a separate form. The research assistant leading the data collection will ensure that no data is missing by performing daily checking. * Data collection for the main outcomes will be done by a different group of research assistants and will be masked from the intervention groupings. * Data analysis will be done using SPSS 26.0 by the researcher. The analysis will be started after baseline measurements are completed. We will present all normally distributed numeric data as mean and standard deviations and non-normally distributed numeric data as median and minimum-maximum range. Bivariate analysis of normally distributed data will be done using repeated 2-way ANOVA test or mixed linear model in case of many dropouts. If data is not distributed normally, the Friedman test will be used. Any missing data will be stated and completed immediately. Close supervision for each subject will be done by research assistance to ensure all necessary reports are collected and analysed.

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