Key result
Women significantly overestimated their moderate-to-vigorous physical activity by a mean difference of 19.1 minutes per day at 48 months post-Roux-en-Y Gastric Bypass compared to objective accelerometer measurements.
Why the study?
Data were lacking on the discrepancy between self-reported and accelerometer-measured moderate-to-vigorous physical activity beyond nine months after Roux-en-Y Gastric Bypass.
Does self-reported physical activity accurately reflect accelerometer-measured physical activity in women before and up to 48 months after Roux-en-Y Gastric Bypass?
Cohort (n=26)
Yes
Does self-reported physical activity accurately reflect accelerometer-measured physical activity in women before and up to 48 months after Roux-en-Y Gastric Bypass?
Mean Difference: 19.1 (95% CI 8.6–29.6)
Absolute Event Rate: 19.1% vs 3.8%
p-value: p=0.003
Women significantly overestimate their moderate-to-vigorous physical activity after Roux-en-Y Gastric Bypass surgery compared to objective accelerometer measurements, highlighting the need for objective physical activity tracking in post-bariatric care.
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Self-reported MVPA may overestimate activity in post-RYGB women; leaves open the validity of subjective measures in future bariatric studies.
Possmark et al. (2020) conducted a cohort in Obesity (undergoing Roux-en-Y Gastric Bypass) (n=26). Roux-en-Y Gastric Bypass (RYGB) vs. Pre-surgery baseline was evaluated on Difference between self-reported and accelerometer-measured moderate-to-vigorous physical activity (MVPA) at 48 months (MD 19.1 min/day, 95% CI 8.6-29.6, p=0.003). Women significantly overestimated their moderate-to-vigorous physical activity by a mean difference of 19.1 minutes per day at 48 months post-Roux-en-Y Gastric Bypass compared to objective accelerometer measurements.
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