Aerobic Exercise for Cognitive Functioning in Patients With Substance Use Disorder (SO_CogEx)

St. Olavs Hospital

Status: Completed

Conditions: Cognitive Dysfunction; Substance Abuse

Treatments: Behavioral: High-intensity interval training; Behavioral: Treatment as usual

Study type: Interventional

Funder types: Other

Identifiers

NCT05324085

3253020430 (Other Grant/Funding Number)

171845

Details and patient eligibility

About

Impaired cognitive function is common among patients with substance use disorder (SUD). This is particularly related to executive functions (EF), which includes abilities like decision-making, consequence analysis and impulse/self-control. EF is recognized as an important determinant of treatment outcome as it is associated with dropout rate, attendance to therapy sessions and absence of relapse following treatment termination. Exercise seem to improve cognitive/executive functions, particularly in individuals with cognitive impairments. Aerobic exercise also affects signaling substances and growth factors known to inhibit neural degeneration, and improves cerebral insulin sensitivity and blood flow, contributing to improved brain function. There is a lack of knowledge regarding how to improve EF in SUD patients, and whether such improvements can benefit other parts of the treatment, such as psychotherapy. Aerobic exercise is a well-recognized and cost-effective intervention for cardiovascular and metabolic health, with promising effects on cognitive/executive functions. A randomized controlled trial will be carried out to investigate the effects of aerobic exercise on EF, molecular markers of neuroplasticity and brain function, and treatment outcome in SUD patients. The investigators expect to achieve new knowledge regarding cognitive impairment among SUD patients and to what extent aerobic exercise can improve cognitive abilities and treatment outcome.

Enrollment: 84 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Diagnosed substance use disorder (SUD) by ICD-10
• Being in residential inpatient treatment for SUD at Lade Addiction Treatment Center

Exclusion criteria

• Recent participation in regular aerobic high-intensity interval training (HIIT)
• Admissions shorter than 12 weeks
• Pregnant
• History of brain injury (except concussions)
• Any acute or chronic somatic or psychiatric condition (e.g. heart disease or psychosis) or a medication that would limit the ability to participate in the exercise training and testing procedures, or any of the other assessments.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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84 participants in 2 patient groups

Exercise intervention group

Experimental group

Description:

Participants will undergo supervised treadmill exercise three times each week for eight weeks, in addition to treatment as usual (TAU).

Treatment:

Behavioral: Treatment as usual

Behavioral: High-intensity interval training

Control group

Other group

Description:

Participants will undergo TAU. The content of TAU is broadly individualized but most often includes various forms of group therapy, psychotherapy, psychoeducation and physical activity. The physical activity schedule for the patients typically includes gym-based exercises, individualized by preference of each patient, and various outdoors activities, four times per week all together.

Treatment:

Behavioral: Treatment as usual