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Completed

NCT Number: NCT07046871

Effectiveness of Adapted Basketball Programs in Adolescents With Obesity (ABBA)

This study aims to evaluate the effects of different basketball training programs on adolescents with obesity. The objective is to assess how these programs influence body weight, physical fitness, motivation to exercise, and basketball skills.

Three types of programs are being compared:

* A specially adapted basketball program with pre-session instructional video lessons. * The same adapted program without video supplementation. * A regular basketball program without pedagogical modifications.

Participants are adolescents aged 15 to 17 years with moderate obesity who will engage in one of the programs for seven weeks, with one training session per week.

Body weight, physical fitness, motivation, and basketball skills will be measured before and after the intervention to determine which approach is most effective.

The study aims to identify engaging and effective methods for promoting physical activity, health, and basketball skill development in adolescents with obesity.

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Key information

Conditions

Obesity Behavior Body Weight Motor Activity Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

15 year–17 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Sfax

Sfax, 300, Tunisia

About this study

This randomized controlled trial (RCT) includes three parallel intervention arms designed to evaluate the effects of different basketball teaching programs on adolescents with obesity. The intervention spans seven consecutive weeks and consists of one structured basketball session per week, each lasting 60 minutes and delivered during regular physical education (PE) classes.

A total of 55 adolescents (33 females and 22 males), aged 15 to 17 years and classified as having moderate obesity (BMI: 30-34.9 kg/m²), were recruited from a secondary school in the Sidi Bouzid region of Tunisia. Participants were randomly assigned using a computer-generated sequence to one of the following groups:

  • ADAPT+VID Group (n = 19): An adapted basketball program enriched with pre-session instructional video summaries.
  • ADAPT Group (n = 18): The same adapted basketball program without video supplementation.
  • CONT Group (n = 18): A traditional basketball program without pedagogical modifications.

Pre- (T0) and post-intervention (T1) assessments included: (i) anthropometric measurements (BMI), (ii) physical fitness tests, (iii) evaluations of technical basketball performance (passing, dribbling, shooting), and (iv) assessments of motivation. Motivation was assessed following the first and final sessions.

Each session was structured into three phases: a standardized warm-up (15 minutes), a main instructional phase (40 minutes), and a cool-down period (5 minutes). The adapted program was tailored to the specific needs of adolescents with obesity by modifying drills, reducing competitiveness, and incorporating extended recovery and instructional periods. Pre-session videos in the ADAPT+VID group were uploaded to a private Facebook group 48 hours prior to each session and engagement was monitored.

The study received approval from the appropriate institutional ethics committee and was conducted in accordance with the Declaration of Helsinki. Written informed consent was obtained from all participants and their legal guardians prior to enrollment.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age between 15 and 17 years
  • Body mass index (BMI) within the moderate obesity range (30-34.9 kg/m²)
  • No history of musculoskeletal, neurological, or orthopedic disorders that could impair physical performance in the six months preceding the study
  • Normal or corrected-to-normal vision
  • Regular attendance in physical education (PE) classes

Exclusion criteria

•

  • History of musculoskeletal, neurological, or orthopedic disorders that could impair physical performance in the six months preceding the study
  • Visual impairments not corrected to normal vision
  • Irregular attendance or absence from physical education (PE) classes

Treatment and study plan

1. Intervention Name (Arm 1) Name: Adapted Basketball Program with Video Support Type: Behavioral Description: A 7-week basketball intervention for adolescents with obesity, combining pedagogically a

Behavioral

A 7-week basketball intervention for adolescents with obesity, combining pedagogically adapted activities with pre-session video instruction delivered via a private Facebook group.

Other names: Adapted Basketball Program with Video Support (ADAPT+VID)

ADAPT Adapted Basketball Program

Behavioral

A 7-week adapted basketball intervention including non-competitive, inclusive drills tailored to adolescents with obesity, without any video supplementation.

Other names: Adapted Basketball Program

Primary outcomes

  1. Change in Body Mass Index (BMI) in kg/m²

    Time frame: From baseline (pre-intervention) to after 7 weeks of intervention

    Body Mass Index (BMI) will be calculated using the formula: weight (kg) / height (m²). Weight will be measured using a calibrated digital scale and height using a wall-mounted stadiometer. BMI will be assessed at baseline and after 7 weeks to evaluate the effects of the basketball training intervention on body composition in adolescents with moderate obesity.

Secondary outcomes

  1. Change in Cardiorespiratory Fitness Assessed by Intermittent Fitness Test 15-15. -Unit of Measure: Meters (total distance covered)(Spartacus Test). -Unit of Measure: Meters (total distance covered)

    Time frame: Baseline (pre-intervention)and after 7 weeks

    Cardiorespiratory fitness will be assessed using the 15-15 intermittent fitness test (Spartacus Test), a shuttle run test designed for overweight and obese adolescents. The test involves 15-second running intervals alternated with 15-second passive recovery over a 40-meter distance, with progressive speed increases starting at 5 km/h and increasing by 0.5 km/h per stage. The test concludes when the participant fails to maintain pace for two consecutive intervals or stops due to fatigue. The total distance covered will be used to estimate cardiorespiratory fitness (VO₂peak). The Spartacus test is validated for this population and demonstrates high test-retest reliability (ICC > 0.90).

  2. Change in Situational Motivation (SIMS) Scores. - Unit of Measure: Units on the Situational Motivation Scale (SIMS), a 7-point Likert scale with minimum score 1 and maximum score 7.

    Time frame: Baseline (Session 1) and post-intervention (Session 7, 7 weeks after baseline)

    Motivation was assessed using the Situational Motivation Scale (SIMS), a validated 16-item questionnaire evaluating four subdimensions: intrinsic motivation, identified regulation, external regulation, and amotivation. Each item is rated on a 7-point Likert scale (1 = "does not correspond at all" to 7 = "corresponds exactly"). The average score for each subscale was calculated by averaging the corresponding four items (e.g., intrinsic motivation: items 1, 5, 9, 13). Higher scores indicate greater intensity of the respective motivation type.

Other outcomes

  1. Change in Passing Accuracy in Basketball. -Unit of Measure: Points (maximum possible score based on protocol)

    Time frame: From baseline to after 7 weeks of intervention

    Passing accuracy was evaluated using the AAHPERD Passing Test, which requires participants to perform chest passes at six wall targets within 30 seconds. Points are awarded based on precision and rule compliance. The total score is the sum of two scored trials, after one practice attempt. This test has demonstrated strong reliability (r = 0.84-0.97).

  2. Change in Shooting Accuracy in Basketball -Unit of Measure: Points (0 to 50 maximum)

    Time frame: Baseline and after 7 weeks

    Shooting accuracy was assessed using a standardized 10-shot free-throw test from the 4.57-meter line, using FIBA-approved size 6 basketballs. Each shot was scored using a 6-level scale (0-5 points), considering precision and shot quality. Total score was calculated by summing the scores of the 10 attempts.

  3. Change in Dribbling Performance in Basketball. -Unit of Measure: Seconds

    Time frame: Baseline and after 7 weeks

    Dribbling proficiency was evaluated using a timed zigzag cone course (5 cones, 2 meters apart). Participants completed a round-trip dribbling trial; the best of two attempts was retained. Performance was measured in seconds using a stopwatch accurate to 0.01 seconds.

Sponsors and collaborators

Lead sponsor

University of Sfax

Other

Registry information

Official study title

Effectiveness of an Adapted Basketball Program With and Without Video Support in Adolescents With Obesity: A Randomized Controlled Trial

Acronym: ABBA

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Jul 2, 2025
Registry last updated
Jul 2, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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