Effects of a 24-week block-based versus circuit-based exercise program in overweight and obese Chilean adults

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN16284357

Enrollment

Registered

2026-07-06

Start date

2026-07-10

Completion date

Unknown

Last updated

2026-07-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiovascular autonomic regulation, body composition, and quality of life in Chilean adults with overweight and obesity Nutritional, Metabolic, Endocrine

Interventions

The study involved a 24-week resistance training program with three weekly sessions (Monday, Wednesday, and Friday), each lasting 48 to 57 minutes. Participants were randomly assigned to either an exp

Eligibility

Sex/Gender

Male

Age

18 Years to 44 Years

Inclusion criteria

Inclusion criteria: 1. Chilean adults aged 18 to 44 classified as overweight or obese based on body mass index 2. Participants must refrain from moderate- or vigorous-intensity physical activity for the 48 hours prior to each assessment or training session to avoid interfering with the acute physiological response 3. Punctual and regular attendance at all scheduled training sessions throughout the 24-week intervention 4. Sign an informed consent form 5. Proper understanding of the study's procedures, objectives, and potential risks

Exclusion criteria

Exclusion criteria: 1. Significant metabolic diseases or musculoskeletal conditions that limit physical exercise 2. Perform below 644 m on the 6-minute walk test 3. Simultaneously participating in another physical training program during the intervention period.

Design outcomes

Primary

Measure	Time frame
Body composition measured using Metabolic Equivalent of Task, Body Mass Index and waist circumference at 24 weeks	—

Secondary

Measure	Time frame
Muscle strength measured using right and left hand grip dynamometer at 24 weeks;Speed measured using running anaerobic sprint test at 24 weeks;Functional capacity measured using 6-minute walking test at 24 weeks;Recovery capacity measured using heart rate variability in the Low Frequency/High Frequency (LF/HF) ratio and Root Mean Square of Successive Differences (RMSSD) at 24 weeks;Physical activity level measured using the International Physical Activity Questionnaire – Short Form (IPAQ-SF) at 24 weeks;Quality of life measured using the World Health Organization Quality of Life Instrument – Brief version (WHOQOL-BREF) at 24 weeks	—

Measure

Time frame

Muscle strength measured using right and left hand grip dynamometer at 24 weeks;Speed measured using running anaerobic sprint test at 24 weeks;Functional capacity measured using 6-minute walking test at 24 weeks;Recovery capacity measured using heart rate variability in the Low Frequency/High Frequency (LF/HF) ratio and Root Mean Square of Successive Differences (RMSSD) at 24 weeks;Physical activity level measured using the International Physical Activity Questionnaire – Short Form (IPAQ-SF) at 24 weeks;Quality of life measured using the World Health Organization Quality of Life Instrument – Brief version (WHOQOL-BREF) at 24 weeks

—

Countries

Chile

Contacts

Public ContactHéctor Fuentes Barría

hefuentes_@unap.cl+56 (0)9996702455

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Jul 23, 2026