About this trial
This randomized controlled study aims to compare the effects of different periodization-based strength training approaches in individuals with type 2 diabetes mellitus. Participants will be allocated to non-linear periodization, linear periodization, or control groups. The intervention program will be conducted for 8 weeks and will evaluate exercise capacity, muscle strength, quality of life, body composition, and metabolic parameters.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults aged between 18 to 65 years
Diagnosis of Type 2 Diabetes Mellitus (T2DM)
Not having participated in any structured exercise program within the last 6 months
Willingness to participate in the study and provide written informed consent
Disqualifiers
Presence of nephropathy, retinopathy, or peripheral neuropathy
Presence of neurological, cognitive, or orthopedic disorders that may affect outcome measurements
Severe respiratory disease (Forced Expiratory Volume in the first second [FEV1] <35% or Forced Vital Capacity [FVC] <50%)
Presence of ischemic heart disease or peripheral arterial disease
Trial design
Parallel
Treatments tested in this trial
Non-linear Periodization-Based Strength Training
BehavioralParticipants will perform supervised non-linear periodization-based strength training three times per week for 8 weeks.
Linear Periodization-Based Strength Training
BehavioralParticipants will perform supervised linear periodization-based strength training three times per week for 8 weeks.
Usual Care
Other interventionParticipants will receive usual care and no structured exercise intervention during the study period.
Treatment groups
Trial outcomes
Primary outcomes
Exercise Capacity
Exercise capacity will be assessed using the 6-Minute Walk Test (6MWT)
Secondary outcomes
Change in Peripheral Muscle Strength
Peripheral muscle strength will be assessed using handheld dynamometry for upper and lower extremity muscle groups and reported in Newton (N).
Change in Hand Grip Strength
Hand grip strength will be assessed using a hand dynamometer and reported in kilograms (kg).
Change in Diabetes Quality of Life Questionnaire Score
Change in the Turkish version of the Diabetes Quality of Life Questionnaire (DQOL) total score and subscale scores from baseline to 8 weeks will be evaluated. The DQOL consists of 45 items assessing treatment satisfaction, psychological impact, concerns about future effects of diabetes, and social/vocational concerns. Each item is scored on a 1-5 scale, and higher scores indicate better diabetes-related quality of life.
Change in Body Fat Percentage
Body fat percentage (%) will be assessed using bioelectrical impedance analysis (BIA).
Sponsors and contacts
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