MedicalResearch.com Interview with:
Dorothy D. Dunlop Ph.D.
Professor of Medicine and Preventive Medicine
Northwestern University Feinberg School of Medicine
Institute for Public Health and Medicine
Center for Healthcare Studies
Chicago, IL 60611
MedicalResearch.com: What is the background for this study?
- We know is being active is good for health.
- Good evidence supports the current federal guidelines of doing 150 minutes of moderate physical activity each week to prevent serious conditions such as heart disease
- But only 1 in 10 older US adults with arthritis in their lower limb joints (e.g., knees) meet federal physical activity guidelines
- Inadequate physical activity is a major public health concern because It can lead to poor function, which threatens a person’s ability to live independently.
These issues motivated our study to investigate the minimum time commitment needed to improve function (or sustain high function) for adults with lower joint osteoarthritis.
MedicalResearch.com: What are the main findings?
- 45 minutes of moderate physical activity per week was the minimum threshold to improve or sustain high future function in adults with lower limb joint symptoms for osteoarthritis.
- We evaluated more than 1600 participants in the Osteoarthritis Initiative. People who met this 45 minute/week threshold were 80% more likely to improve or sustain high function over two years than those who did not.
- The threshold held for both men and women.
MedicalResearch.com: What should readers take away from your report?
- This evidence-based 45 minutes/week moderate physical activity threshold provides an intermediate goal towards the federal guideline.
- Even a little activity is better than none.
MedicalResearch.com: What recommendations do you have for future research as a result of this study?
- Evaluate if meeting this 45 minutes/week moderate physical activity threshold extends to other health outcomes (e.g., mental health) or extends to adults with other chronic conditions
- Evaluate if it matters if this threshold is done in one session or is spread over the week
MedicalResearch.com: Is there anything else you would like to add?
- The bottom line is to stay active as possible.
- Spending time in moderate activity is beneficial to maintain good function
MedicalResearch.com: Thank you for your contribution to the MedicalResearch.com community.
Dorothy D. Dunlop PhD, Jing Song MS1,Jungwha Lee PhD1, Abigail L. Gilbert MD1,Pamela A. Semanik PhD APN2, Linda Ehrlich-Jones PhD APN3, Christine A. Pellegrini PhD1, Daniel Pinto PhD1,Barbara Ainsworth PhD4 and Rowland W. Chang MD MPH1
2016, American College of Rheumatology
Note: Content is Not intended as medical advice. Please consult your health care provider regarding your specific medical condition and questions.