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Unlabelled: Many adults with major depressive disorder (MDD) do not receive effective treatment. The potential benefits of resistance exercise training (RET) are understudied and may be mechanistically related to cerebral blood flow changes.
Purpose: To assess feasibility, acceptability, and preliminary efficacy of a 16-week, theory-informed RET trial for the treatment of MDD and explore changes in cerebral blood flow.
Methods: Ten adults with DSM-5-diagnosed MDD were enrolled in a single-arm, 16-week, twice-weekly, whole-body RET intervention, consistent with US and WHO Physical Activity resistance exercise guidelines. To build intrinsic motivation and develop exercise-preparatory habits, motivators and commitment were discussed weekly. Screening, enrollment, and intervention attendance and compliance rates documented feasibility. At baseline and weeks 8, 16, and 26, current MDD diagnosis, clinician-rated, and self-reported symptom severity were evaluated along with cerebral blood flow which was assessed as middle cerebral artery (MCA) mean blood velocity, conductance, and pulsatility.
Results: Nine participants completed the intervention. Strong feasibility and acceptability (98 % adherence, 93 % compliance, and 90 % retention) were found. MDD remission was reached by 8/9 participants at week 16 and persisted through week 26. There were large decreases in clinician-rated and self-reported symptoms at each assessment (Hedges' g = 0.84-2.13). There were small-to-moderate increases in MCA velocity (g = 0.32-0.57) and conductance (g = 0.20-0.76) across time, with minimal changes in pulsatility (all g < 0.21).
Conclusions: Preliminary results suggest RET for MDD treatment is feasible and plausibly efficacious, finding large antidepressant effects. A sufficiently powered randomized controlled trial to assess RET's efficacy for treating MDD via potential cerebrovascular mechanisms is warranted.
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http://dx.doi.org/10.1016/j.psychsport.2024.102642 | DOI Listing |
JAMA Psychiatry
September 2025
School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia.
Importance: Cannabis is the most commonly used illicit drug, with 10% to 30% of regular users developing cannabis use disorder (CUD), a condition linked to altered hippocampal integrity. Evidence suggests high-intensity interval training (HIIT) enhances hippocampal structure and function, with this form of physical exercise potentially mitigating CUD-related cognitive and mental health impairments.
Objective: To determine the impact of a 12-week HIIT intervention on hippocampal integrity (ie, structure, connectivity, biochemistry) compared with 12 weeks of strength and resistance (SR) training in CUD.
J Sports Sci
September 2025
Faculty of Health and Sports Science, Doshisha University, Kyoto, Japan.
This study aimed to investigate the acute changes in the passive stiffness of biarticular hamstring muscles after passive stretching and eccentric-only resistance exercise performed at different loads. Thirteen healthy young male participants performed four exercise sessions (on separate days) that comprised passive knee extension (0% of maximal eccentric torque) and eccentric-only knee flexion at different loads (25%, 50% and 75%). Maximal knee joint range of motion, passive torque, shear moduli of the biarticular hamstring muscles, and maximal isometric torque were measured before, 5 min, and 30 min after completing each session.
View Article and Find Full Text PDFSleep
September 2025
Center for Sleep Medicine, Hospices Civils de Lyon, Lyon 1 University, Lyon, F-69000, France.
Current treatments for narcolepsy type 1 (NT1) have little impact on psychiatric, cognitive and metabolic comorbidities. Here, we evaluated the feasibility, safety and efficacy of a prospective Exercise Training (ET) program on sleep-related symptoms and comorbidities in NT1. Sedentary adult with NT1 participated in a 6-week supervised ET program followed by a 18-week self-directed program.
View Article and Find Full Text PDFJ Cachexia Sarcopenia Muscle
October 2025
Department of Sports Science, College of Natural Science, Jeonbuk National University, Jeonju, Republic of Korea.
Background: Fine particulate matter has developmental toxicity, and midgestation is an important period for the development of foetal skeletal muscle. The ability of exercise to modulate skeletal muscle damage in mice exposed to PM during gestation remains unclear.
Methods: Pregnant C57BL/6 mice were exposed to 50 μg/m PM for 2 h on five consecutive days starting at embryonic day 12.
Front Physiol
August 2025
Department of Sports Medicine, Wuhan Sports University, Wuhan, China.
With the intensification of population aging, sarcopenia in older adults has become a significant public health issue affecting quality of life. Sarcopenia is a progressive and systemic skeletal muscle disorder characterized by reduced muscle mass, decreased muscle strength, and diminished physical function. Although conventional exercise interventions have shown some efficacy in managing sarcopenia, their effects are limited and often insufficient to effectively halt disease progression.
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