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Online behavioral intervention increases physical activity and improves depression in newly diagnosed multiple sclerosisCan online coaching help people newly diagnosed with MS get moving and feel better?

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Key Takeaway
Consider online behavioral support for PA in early MS, but note evidence is preliminary from a small pilot.

This pilot randomized controlled trial evaluated a COM-B-based behavioral intervention for physical activity promotion in 50 people newly diagnosed with multiple sclerosis (disease duration ≤2 years). Participants were randomized to receive the 16-week online intervention (coaching and newsletters) or a waitlist control. The primary outcome was physical activity measured by device and self-report.

At post-intervention (16 weeks), the intervention group showed significant improvements in device-measured moderate-to-vigorous physical activity (increase of 11.2 min/day, 95% CI: 8.8, 13.7; d=0.5) and self-reported activity on the IPAQ (increase of 11.4 units, 95% CI: 10.4, 12.3; d=0.7) compared to control. Secondary analyses showed significant improvements in depression scores (HADS-D decrease of 1.4 units, 95% CI: 1.3, 1.5; d=0.5) and mental health-related quality of life (SF-12 MCS increase of 5.6 units, 95% CI: 5.1, 6.1; d=0.6). Effects on device-measured steps/day, light physical activity, fatigue, and anxiety were not reported as significant.

Safety and tolerability data were not reported. Key limitations include the pilot nature with small sample size (n=50), unblinded design, and short-term follow-up only to 16 weeks. The study did not report on adverse events, serious adverse events, or discontinuations. Funding and conflicts of interest were not reported.

This provides preliminary evidence that an online behavioral intervention may increase physical activity and improve depression and mental quality of life in people newly diagnosed with MS. The RCT design supports causal inference, but the pilot status, small sample, and lack of blinding limit confidence. Effects on other important outcomes like fatigue and long-term maintenance remain unknown. These findings require replication in larger, longer-term trials before clinical implementation.

Imagine getting a life-changing diagnosis like multiple sclerosis. One of the first things you might hear is that staying active is crucial for managing the disease, but fatigue and low mood can make that advice feel out of reach. A new study tested whether a 16-week online program—combining coaching and newsletters—could help people newly diagnosed with MS build more movement into their lives.

The research involved 50 people who had been diagnosed within the last two years. Compared to a group that was simply waiting to start the program, those who received the online coaching added about 11 more minutes per day of moderate-to-vigorous physical activity, like brisk walking. They also reported being more active overall, felt less depressed, and said their mental health-related quality of life was better after the 16 weeks.

It's important to see this as a hopeful first step, not a final answer. This was a pilot study, which means it was designed to see if the approach was worth testing in a bigger group. With only 50 people, the results are preliminary. The study wasn't blinded, so participants knew which group they were in, which can sometimes influence how people report their feelings. The program didn't show a clear effect on daily step counts, lighter activity, fatigue, or anxiety in this analysis, and we don't know if the benefits last beyond the 16-week program.

What this means for you:
Online coaching shows early promise for boosting activity and mood in new MS patients, but larger studies are needed.

Study Details

Study typeRct
Sample sizen = 25
EvidenceLevel 2
Follow-up24.0 mo
PublishedApr 2026
View Original Abstract ↓
PURPOSE: This pilot randomized controlled trial (RCT) evaluated the efficacy of a behavioral intervention grounded in the Capability-Opportunity-Motivation-Behavior (COM-B) model delivered via online coaching and newsletters for promoting physical activity (PA) in people newly diagnosed with multiple sclerosis (PNDwMS). METHODS: This unblinded, parallel-group, RCT included 50 PNDwMS (disease duration ≤ 2 years) who were randomized into either PA intervention (n = 25) or waitlist control (WLC) (n = 25) conditions. The intervention was delivered over 16 weeks by a researcher uninvolved in randomization. Data were collected pre- and post-intervention. Primary outcomes included device-measured (steps/day, light PA [LPA], moderate-to-vigorous PA [MVPA]) and self-reported PA (Godin Leisure-Time Exercise Questionnaire [GLTEQ] and International Physical Activity Questionnaire [IPAQ]). Secondary outcomes included fatigue, depression, anxiety, and health-related quality of life (HRQOL). Data were analyzed (intent-to-treat) using condition-by-time mixed-effects ANOVA. RESULTS: There were significant condition-by-time interactions on device-measured (MVPA) and self-reported (IPAQ) PA as well as depression and mental HRQOL (all p ≤ .05). There were moderate and significant improvements in MVPA (Δ11.2 min/day, 95% CI: 8.8, 13.7, d = 0.5) and IPAQ (Δ11.4 units, 95% CI: 10.4, 12.3, d = 0.7), HADS-D (Δ1.4 units, 95% CI: 1.3, 1.5, d = 0.5), and SF-12 MCS (Δ5.6 units, 95% CI: 5.1, 6.1, d = 0.6) scores in the PA intervention condition, but not in the WLC condition. CONCLUSION: These findings provide preliminary evidence for the efficacy of the COM-B-based behavioral intervention for increasing PA and improving mental health outcomes in PNDwMS.
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