Categories
Change Password!
Reset Password!
Physicians can recommend at least 45 minutes of MV‐total activity in a week to
improve low function or endure high function over 2 years‘.
The
study mentioned here was performed to elucidate an evidence-based minimum
physical activity threshold to estimate improved or sustained high function for
adults with lower-extremity joint symptoms.
A
total of 1,629 adults, age ≥49 years with symptomatic lower-extremity joint pain/aching/stiffness
were considered for this study. They were participating in the Osteoarthritis
Initiative accelerometer monitoring substudy were clinically assessed 2 years
apart. Prospective multiside data was collected from these patients. Improved/high
function in 2-year gait speed and patient-reported consequences (PROs) were
based on improving or remaining in the best (i.e., maintaining high) function
quintile as compared to baseline status. Classification trees were used to
assess the optimal thresholds predicting improved/high function. These were
used for the legacy federal guideline metric which required 150 minutes/week of
moderate-vigorous (MV) activity in bouts lasting 10 minutes or more (MV-bout)
and other metrics (total MV, sedentary, light intensity activity, nonsedentary
minutes/week).
The
optimal thresholds based on total MV minutes/week speculated improved/high
function outcomes more strongly than the legacy or other investigated metrics.
Meeting the 45 total MV minutes/week threshold had elevated relative risk (RR)
for improved/high function (gait speed RR 1.8, 95% confidence interval [95% CI]
1.6, 2.1 and PRO physical function RR 1.4, 95% CI 1.3, 1.6) compared to less
active adults. Consistent thresholds were observed across sex, body mass index,
knee osteoarthritis status, and age.
The
results obtained from this study supported a physical activity minimum
threshold of 45 total MV minutes/week. These promote improved or sustained high
function for adults with lower-extremity joint symptoms. This evidence-based
threshold is less rigid than federal guidelines (≥150 MV-bout minutes/week).
These provide an intermediate goal towards the federal guideline for adults
with lower-extremity symptoms.
Arthritis care and research
Physical Activity Minimum Threshold Predicting Improved Function in Adults With Lower-Extremity Symptoms
Dorothy D. Dunlop et al.
Comments (0)