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Sponsor study identifier
interventional
48
1 country
1
Study Start
October 8, 2018
Actual (reported)Primary Completion
June 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
The overall objective of this study is to examine physical exercise as an intervention for ADHD. The rationale for the proposed study is that physical exercise could serve as an effective treatment for college students with ADHD that has low costs, low risks, and ancillary health benefits and may address the limitations of existing treatments. The central hypothesis is that college students with ADHD will exhibit greater degrees of improvement in executive functioning (i.e., sustained attention, working memory) immediately following sprint interval training (SIT), relative to non-ADHD peers. This hypothesis was formulated based on preliminary studies demonstrating reduced ADHD symptoms and improved executive functioning following physical exercise. Multiple 2 (ADHD vs. control) x 2 (male vs. female) x 2 (exercise vs. none) repeated measures ANOVAs will be conducted to compare students with ADHD (n = 24) to controls (n = 24). The expected outcomes are to confirm this hypothesis and demonstrate the need for further study of physical exercise. If confirmed, the results will provide pilot data for a larger NIH grant proposal aimed at further examining the acute effects of physical exercise (i.e., improved cognitive functioning immediately following exercise) and also the chronic effects of physical exercise (i.e., improved functioning after engaging in regular exercise for an extended period). This outcome is expected to have an important positive impact because physical exercise may serve as an effective treatment for college students with ADHD that is less risky than stimulants, less time-consuming than therapy, and provides ancillary health benefits (i.e., increasing physical fitness, decreasing obesity).
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
August 31, 2018
Actual (reported)September 11, 2018
Actual (reported)October 8, 2018
Actual (reported)June 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
December 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Change in Continuous Performance Test (CPT) from appointment 1 to 2
The CPT is a standardized computer-administered test consisting of four-digit numbers that are presented for 200ms on a white screen with 1500ms between the presentation of each number. Participants must press the spacebar as quickly as possible when the preceding four-digit number matches the current four-digit number Participants will complete the CPT as a measure of sustained attention at each experimental appointment. For the SIT appointment, participants will complete the CPT 15 minutes after exercise termination.
Completed at each experimental appointment over a period of two weeks
Change in Digit Span from appointment 1 to 2
The Digit Span (Wechsler, 2008) subtest of the Wechsler Adult Intelligence Scale (WAIS-IV) is an auditory working memory task. The researcher will say numbers aloud at a rate of one number per second. The participant will be tasked with remembering and repeating the numbers in a prescribed (forward, backward, sequencing) order. Participants will complete the Digit Span (forward, backward and sequencing) auditory working memory task at each experimental appointment. For the SIT appointment, participants will complete the Digit Span (forward, backward and sequencing) tasks approximately 15 minutes after exercise termination.
Completed at each experimental appointment over a period of two weeks
Depression, Anxiety, and Stress Scale-Modified (DASS-M)
Completed the day after each experimental appointment over a period of two weeks
Barkley Adult ADHD Rating Scale-Modified (BAARS-M)
Completed the day after each experimental appointment over a period of two weeks
Participants will be scheduled for two in-lab experimental appointments: sprint interval training (SIT) and Non-SIT. During the SIT appointment, the researcher will lead the participant through a set of stretches and three minutes of low-intensity cycling on a Schwinn AD2 Airdyne leg-cycling and arm-cranking ergometer to warm up and increase blood flow to active muscles. Participants will then complete 16 minutes of SIT, consisting of eight bouts of 20 seconds of cycling followed by 100 seconds of rest. Participants will complete computer-based tests of sustained attention and working memory during both the SIT (15 minutes following the exercise) and Non-SIT appointments.
Participants will attend two experimental appointments, during which they will complete two identical executive functioning tasks (i.e., sustained attention, working memory). During one appointment, participants will receive the sprint interval training manipulation prior to completing the tasks.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
University of Wyoming
Laramie, Wyoming, 82071, United States
Hoza B, Smith AL, Shoulberg EK, Linnea KS, Dorsch TE, Blazo JA, Alerding CM, McCabe GP. A randomized trial examining the effects of aerobic physical activity on attention-deficit/hyperactivity disorder symptoms in young children. J Abnorm Child Psychol. 2015 May;43(4):655-67. doi: 10.1007/s10802-014-9929-y.
Chang YK, Liu S, Yu HH, Lee YH. Effect of acute exercise on executive function in children with attention deficit hyperactivity disorder. Arch Clin Neuropsychol. 2012 Mar;27(2):225-37. doi: 10.1093/arclin/acr094. Epub 2012 Feb 3.
Cynthia M Hartung, Ph.D.
University of Wyoming
First Submitted
August 31, 2018
First Posted
September 11, 2018
Study Start
October 8, 2018
Actual (reported)Primary Completion
Change in Letter-Number Sequencing from appointment 1 to 2
The Letter-Number Sequencing (Wechsler, 2008) task is a supplemental subtest of the Wechsler Adult Intelligence Scale (WAIS-IV) that measures auditory working memory. Researchers will read a sequence of letters and numbers, and the participant will attempt to recall the numbers in ascending order and the letters in alphabetical order. Participants will complete the Letter-Number Sequencing auditory working memory task at each experimental appointment. For the SIT appointment, participants will complete the Letter-Number Sequencing task approximately 15 minutes after exercise termination.
Completed at each experimental appointment over a period of two weeks
Change in Spatial Span (SS) from appointment 1 to 2
The Spatial Span (SS) is a computer-administered task assessing visuospatial working memory. Participants will be tasked with remembering the order of stimuli that are presented in forward and backward sequences. Participants will complete the SS visuospatial working memory task at each experimental appointment. For the SIT appointment, participants will complete the SS task approximately 15 minutes after exercise termination.
Completed at each experimental appointment over a period of two weeks
Contact the study team to confirm eligibility.
Choi JW, Han DH, Kang KD, Jung HY, Renshaw PF. Aerobic exercise and attention deficit hyperactivity disorder: brain research. Med Sci Sports Exerc. 2015 Jan;47(1):33-9. doi: 10.1249/MSS.0000000000000373.
Neudecker C, Mewes N, Reimers AK, Woll A. Exercise Interventions in Children and Adolescents With ADHD: A Systematic Review. J Atten Disord. 2019 Feb;23(4):307-324. doi: 10.1177/1087054715584053. Epub 2015 May 11.
Gapin, J. I., Labban, J. D., Bohall, S. C., Wooten, J. S., & Chang, Y. (2015). Acute exercise is associated with specific executive functions in college students with ADHD: A preliminary study. Journal of Sport and Health Science, 4, 89-96. doi:10.1016/j.jshs.2014.11.003
Faul F, Erdfelder E, Lang AG, Buchner A. G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods. 2007 May;39(2):175-91. doi: 10.3758/bf03193146.
Borg, G. A. (1998). Borg's perceived exertion and pain scales. Champaign, IL: Human Kinetics.
Howell, D. C. (2011). Confidence intervals on effect size. http://www.uvm.edu/~dhowell/methods8/Supplements/Confidence%20Intervals%20on%20Effect%20Size.pdf. Accessed August 23, 2013.
Hedges, L. V. (1982). Fitting categorical models to effect sizes from a series of experiments. Journal of Educational Statistics, 7, 119-37. doi: 10.2307/1164961
Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum.
June 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 30, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
June 10, 2024
Record last verified: 2024-06
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Source: ClinicalTrials.gov.
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