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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04554355
Other study ID # PHDSPE17482062
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 1, 2018
Est. completion date June 30, 2019

Study information

Verified date December 2020
Source Hong Kong Baptist University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The proposed study will be a 12-week school-based physical activity (PA) program with a 2-armed randomized controlled trial (RCT) design. It will target overweight and obese children with intellectual disability (ID). The primary outcomes will be both fatness-related and fitness-related outcomes. In addition, the effect of the intervention on blood pressure will be evaluated as the secondary outcomes.


Description:

Childhood obesity and lower HRPF levels are major threats to public health. The previous research finds that children with ID are more vulnerable to be obesity and lower HRPF levels than general pediatric population. In addition, the transition from adolescence to young adulthood is recognized as a particularly high-risk period for weight gain. However, Interventions to reduce obesity and improve HRPF levels among adolescents with ID are scarce. The main purpose of this study is to implement and evaluate a fun game-based PA program to reduce overweight/obesity and improve health-related physical fitness (HRPF) levels among adolescents with ID (aged 12-18 years old). The study consists of a 3-month intervention and a 3-month follow-up. Totally Forty-eight overweight/obese adolescents with mild intellectual disability (ID) will be recruited from special schools in China and then randomly assigned into two groups (n=24 for each group). Selection criteria for participants are: (1) children with mild ID; (2) aged 12-18 years old; (3) being overweight or obese; (4) without physical disability and other relevant health conditions. Participants in the experimental group will receive a fun game-based PA program (60 min/time, 2 sessions/week, 24 sessions totally) at school. No intervention will be provided to participants in the control group. All participants in the two groups (N=48) will undertake repeated measurements on a set of study outcomes for three times. All measurements are non-invasive and no potential consequences are expected. In addition, questionnaires will be used to collect each participant's information of socio-demographic characteristics, physical activity level and eating habits (about 15 minutes). The investigators expect the findings from the study would make up the knowledge gap and help eliminate existing health inequities among children with ID. It would serve as an example for use of other researchers, policy-makers, and the public to tackle off obesity among adolescents with ID in a global scale. If effective, this program would be welcomed and adopted by other special schools in the future. In addition, the effective model can also be extended to reach students with ID in normal schools.


Recruitment information / eligibility

Status Completed
Enrollment 86
Est. completion date June 30, 2019
Est. primary completion date June 30, 2019
Accepts healthy volunteers No
Gender All
Age group 12 Years to 18 Years
Eligibility Inclusion Criteria: - children with mild ID; - aged 12-18 years old; - overweight or obese; - at least one family member who is able to attend the program with them. Exclusion Criteria: - with physical disability; - with a medical predisposition towards obesity (such as genetic syndrome) that could interfere with the results of the study; - with contraindications for PA (e.g. severe heart disease).

Study Design


Intervention

Behavioral:
School-based PA intervention
Provide moderate to vigorous fun-game based exercises for adolescents with ID in schools to help them reduce obesity and improve fitness levels.

Locations

Country Name City State
China Hong Kong Bapist University Hong Kong

Sponsors (1)

Lead Sponsor Collaborator
Hong Kong Baptist University

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Weight It will be measured with a TANITA digital scale (TBF-410), which is accurate to 0.1 kg. The scale will be cleared before each participant is weighed, and the participants will be asked to remove any 'heavy' items from their pockets (keys, wallets etc.) and remove any heavy items of clothing or apparel (jackets, shoes, woollen jerseys etc.). up to 2 months
Primary Weight It will be measured with a TANITA digital scale (TBF-410), which is accurate to 0.1 kg. The scale will be cleared before each participant is weighed, and the participants will be asked to remove any 'heavy' items from their pockets (keys, wallets etc.) and remove any heavy items of clothing or apparel (jackets, shoes, woollen jerseys etc.). up to 5 months
Primary Weight It will be measured with a TANITA digital scale (TBF-410), which is accurate to 0.1 kg. The scale will be cleared before each participant is weighed, and the participants will be asked to remove any 'heavy' items from their pockets (keys, wallets etc.) and remove any heavy items of clothing or apparel (jackets, shoes, woollen jerseys etc.). up to 8 months
Primary BMI It will be calculated as weight (in kilograms) divided by the square of height (in metres) (kg/m2). up to 2 months
Primary BMI It will be calculated as weight (in kilograms) divided by the square of height (in metres) (kg/m2). up to 5 months
Primary BMI It will be calculated as weight (in kilograms) divided by the square of height (in metres) (kg/m2). up to 8 months
Primary Waist circumference It will be measured midway between the lowest rib margin and the top of the iliac crest at the end of a gentle expiration. The measure will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 2 months
Primary Waist circumference It will be measured midway between the lowest rib margin and the top of the iliac crest at the end of a gentle expiration. The measure will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 5 months
Primary Waist circumference It will be measured midway between the lowest rib margin and the top of the iliac crest at the end of a gentle expiration. The measure will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 8 months
Primary Hip circumference It will be measured at the widest part of the body below the waist. The measurement of the waist circumference will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 2 months
Primary Hip circumference It will be measured at the widest part of the body below the waist. The measurement of the waist circumference will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 5 months
Primary Hip circumference It will be measured at the widest part of the body below the waist. The measurement of the waist circumference will be performed with a flexible metre ribbon accurate to 0.1 cm. up to 8 months
Primary Waist to height ratio The waist to height ratio will be calculated as waist circumference (in centimetres) divided by height (in centimetres). up to 2 months
Primary Waist to height ratio The waist to height ratio will be calculated as waist circumference (in centimetres) divided by height (in centimetres). up to 5 months
Primary Waist to height ratio The waist to height ratio will be calculated as waist circumference (in centimetres) divided by height (in centimetres). up to 8 months
Primary Percent body fat The percent body fat will be estimated with the TANITA digital scale (TBF-410) using foot-to-foot bioelectrical impedance analysis (BIA). After entering the participant's gender, race, height and age, the participant will be instructed to stand with bare feet on the metal footplates. The data will be displayed automatically. up to 2 months
Primary Percent body fat The percent body fat will be estimated with the TANITA digital scale (TBF-410) using foot-to-foot bioelectrical impedance analysis (BIA). After entering the participant's gender, race, height and age, the participant will be instructed to stand with bare feet on the metal footplates. The data will be displayed automatically. up to 5 months
Primary Percent body fat The percent body fat will be estimated with the TANITA digital scale (TBF-410) using foot-to-foot bioelectrical impedance analysis (BIA). After entering the participant's gender, race, height and age, the participant will be instructed to stand with bare feet on the metal footplates. The data will be displayed automatically. up to 8 months
Primary 6-min walk test Testing procedures will follow Chow's study protocol (2018). The participants will be instructed and encouraged to cover the greatest possible distance on a flat surface 25 m in length. They will be instructed to keep a steady pace, whether running or walking. At the end of the test, the participants will be instructed to keep walking to aid in the recovery process. The distance will be measured by the number of laps around the track, adding extra distance as required (VOLEK et al., 2003). A trained examiner will measure and record the distance covered by each participant. Each participant will be assigned a trained partner (university student helper) based on his or her special physical condition and cognitive ability to give verbal direction and encouragement during the test. up to 2 months
Primary 6-min walk test Testing procedures will follow Chow's study protocol (2018). The participants will be instructed and encouraged to cover the greatest possible distance on a flat surface 25 m in length. They will be instructed to keep a steady pace, whether running or walking. At the end of the test, the participants will be instructed to keep walking to aid in the recovery process. The distance will be measured by the number of laps around the track, adding extra distance as required (VOLEK et al., 2003). A trained examiner will measure and record the distance covered by each participant. Each participant will be assigned a trained partner (university student helper) based on his or her special physical condition and cognitive ability to give verbal direction and encouragement during the test. up to 5 months
Primary 6-min walk test Testing procedures will follow Chow's study protocol (2018). The participants will be instructed and encouraged to cover the greatest possible distance on a flat surface 25 m in length. They will be instructed to keep a steady pace, whether running or walking. At the end of the test, the participants will be instructed to keep walking to aid in the recovery process. The distance will be measured by the number of laps around the track, adding extra distance as required (VOLEK et al., 2003). A trained examiner will measure and record the distance covered by each participant. Each participant will be assigned a trained partner (university student helper) based on his or her special physical condition and cognitive ability to give verbal direction and encouragement during the test. up to 8 months
Primary 30-second sit-to-stand It will be used to assess participants' lower limb strength and endurance. It measures the maximum number of times a participant can rise to a full standing position from a seated position in a 30-second period, without pushing off with their arms. This test is administered using a school chair without arms, with a seat height around 14 inches (35.6 cm). The back of the chair will be placed against a wall to prevent it from moving. The participants will be instructed to sit in the middle of the chair, back straight, feet approximately shoulder width apart and placed on the floor at an angle slightly back from the knees, with one foot slightly in front of the other to help maintain balance. Arms are crossed at the wrists and held against the chest. up to 2 months
Primary 30-second sit-to-stand It will be used to assess participants' lower limb strength and endurance. It measures the maximum number of times a participant can rise to a full standing position from a seated position in a 30-second period, without pushing off with their arms. This test is administered using a school chair without arms, with a seat height around 14 inches (35.6 cm). The back of the chair will be placed against a wall to prevent it from moving. The participants will be instructed to sit in the middle of the chair, back straight, feet approximately shoulder width apart and placed on the floor at an angle slightly back from the knees, with one foot slightly in front of the other to help maintain balance. Arms are crossed at the wrists and held against the chest. up to 5 months
Primary 30-second sit-to-stand It will be used to assess participants' lower limb strength and endurance. It measures the maximum number of times a participant can rise to a full standing position from a seated position in a 30-second period, without pushing off with their arms. This test is administered using a school chair without arms, with a seat height around 14 inches (35.6 cm). The back of the chair will be placed against a wall to prevent it from moving. The participants will be instructed to sit in the middle of the chair, back straight, feet approximately shoulder width apart and placed on the floor at an angle slightly back from the knees, with one foot slightly in front of the other to help maintain balance. Arms are crossed at the wrists and held against the chest. up to 8 months
Primary One minute sit-up will be adopted to evaluate participants' abdominal muscular strength and endurance. The task is to perform as many sit-ups as possible in one minute, or until the participant experiences muscle fatigue and cannot try any more. The participants will be instructed to cross their arms on their chests with hands on shoulders, and to tighten their abdominal muscles and rise up to touch elbows to thighs. Then, they return to the start position and repeat. up to 2 months
Primary One minute sit-up will be adopted to evaluate participants' abdominal muscular strength and endurance. The task is to perform as many sit-ups as possible in one minute, or until the participant experiences muscle fatigue and cannot try any more. The participants will be instructed to cross their arms on their chests with hands on shoulders, and to tighten their abdominal muscles and rise up to touch elbows to thighs. Then, they return to the start position and repeat. up to 5 months
Primary One minute sit-up will be adopted to evaluate participants' abdominal muscular strength and endurance. The task is to perform as many sit-ups as possible in one minute, or until the participant experiences muscle fatigue and cannot try any more. The participants will be instructed to cross their arms on their chests with hands on shoulders, and to tighten their abdominal muscles and rise up to touch elbows to thighs. Then, they return to the start position and repeat. up to 8 months
Primary Handgrip strength It will be used to assess participants' hand and forearm muscular strength. During the test, the participant will be instructed to adopt a standing position, with arms at his/her side, not touching the body. The participant will be asked to squeeze the dynamometer with as much force as possible, being careful to squeeze only once for each measurement. Three trials will be made with a pause of 10-20 s between each to avoid the effects of muscular fatigue. Right and left hands will be alternated. The best score will be recorded. up to 2 months
Primary Handgrip strength It will be used to assess participants' hand and forearm muscular strength. During the test, the participant will be instructed to adopt a standing position, with arms at his/her side, not touching the body. The participant will be asked to squeeze the dynamometer with as much force as possible, being careful to squeeze only once for each measurement. Three trials will be made with a pause of 10-20 s between each to avoid the effects of muscular fatigue. Right and left hands will be alternated. The best score will be recorded. up to 5 months
Primary Handgrip strength It will be used to assess participants' hand and forearm muscular strength. During the test, the participant will be instructed to adopt a standing position, with arms at his/her side, not touching the body. The participant will be asked to squeeze the dynamometer with as much force as possible, being careful to squeeze only once for each measurement. Three trials will be made with a pause of 10-20 s between each to avoid the effects of muscular fatigue. Right and left hands will be alternated. The best score will be recorded. up to 8 months
Primary Sit to reach test Each participant will begin the test by removing his/her shoes (very thin footwear will be permitted) and sitting down at the test apparatus. One leg will be fully extended with the foot flat against the end of the testing instrument. The other knee will be bent, with the sole of the foot flat on the floor 5-8 cm to the side of the straight knee. The arms will be extended forward over the measuring scale with hands palms down, one on top of the other. Each participant will be instructed to reach directly forward with both hands along the scale four times and to hold the position of the fourth reach for at least 1 s. After measuring one side, the participant will be asked to switch the position of his/her legs and reach again. The participant can allow the bent knee to move to the side if necessary as the body moves forward. up to 2 months
Primary Sit to reach test Each participant will begin the test by removing his/her shoes (very thin footwear will be permitted) and sitting down at the test apparatus. One leg will be fully extended with the foot flat against the end of the testing instrument. The other knee will be bent, with the sole of the foot flat on the floor 5-8 cm to the side of the straight knee. The arms will be extended forward over the measuring scale with hands palms down, one on top of the other. Each participant will be instructed to reach directly forward with both hands along the scale four times and to hold the position of the fourth reach for at least 1 s. After measuring one side, the participant will be asked to switch the position of his/her legs and reach again. The participant can allow the bent knee to move to the side if necessary as the body moves forward. up to 5 months
Primary Sit to reach test Each participant will begin the test by removing his/her shoes (very thin footwear will be permitted) and sitting down at the test apparatus. One leg will be fully extended with the foot flat against the end of the testing instrument. The other knee will be bent, with the sole of the foot flat on the floor 5-8 cm to the side of the straight knee. The arms will be extended forward over the measuring scale with hands palms down, one on top of the other. Each participant will be instructed to reach directly forward with both hands along the scale four times and to hold the position of the fourth reach for at least 1 s. After measuring one side, the participant will be asked to switch the position of his/her legs and reach again. The participant can allow the bent knee to move to the side if necessary as the body moves forward. up to 8 months
Secondary Blood pressure (both diastolic and systolic blood pressure) It will be measured using an Omron blood pressure monitor. (It will be calibrated before using.) During the test, the participant will be asked to sit quietly for about 5 minutes, and then to remove outer garments and roll up their shirt sleeves if necessary to bare the upper right arm. The measurements will be taken on the right arm whenever possible. The participant's arm will be resting on the desk so that the antecubital fossa is at the level of the heart and with the palm relaxed and facing upwards. Then, the cuff will be placed on the right arm, with the bottom edge 1-2 cm above the antecubital fossa. The top edge of the cuff cannot be restricted by clothing. up to 2 months
Secondary Blood pressure (both diastolic and systolic blood pressure) It will be measured using an Omron blood pressure monitor. (It will be calibrated before using.) During the test, the participant will be asked to sit quietly for about 5 minutes, and then to remove outer garments and roll up their shirt sleeves if necessary to bare the upper right arm. The measurements will be taken on the right arm whenever possible. The participant's arm will be resting on the desk so that the antecubital fossa is at the level of the heart and with the palm relaxed and facing upwards. Then, the cuff will be placed on the right arm, with the bottom edge 1-2 cm above the antecubital fossa. The top edge of the cuff cannot be restricted by clothing. up to 5 months
Secondary Blood pressure (both diastolic and systolic blood pressure) It will be measured using an Omron blood pressure monitor. (It will be calibrated before using.) During the test, the participant will be asked to sit quietly for about 5 minutes, and then to remove outer garments and roll up their shirt sleeves if necessary to bare the upper right arm. The measurements will be taken on the right arm whenever possible. The participant's arm will be resting on the desk so that the antecubital fossa is at the level of the heart and with the palm relaxed and facing upwards. Then, the cuff will be placed on the right arm, with the bottom edge 1-2 cm above the antecubital fossa. The top edge of the cuff cannot be restricted by clothing. up to 8 months
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