Objective assessment of time spent being sedentary in bariatric surgery candidates.
BACKGROUND
Bariatric surgery candidates spend very little time in moderate-to-vigorous intensity physical activity (≥ 3 metabolic equivalents [METs]). This study examined (1) how much of their remaining time is spent in sedentary behaviors (SB < 1.5 METs) compared to light-intensity activities (1.5–2.9 METs) and (2) whether sedentary time varies by BMI.


METHODS
Daily time (hours, %) spent in SB was examined in 42 surgery candidates (BMI = 49.5 ± 7.9 kg/m2) using the SenseWear Pro2 Armband. Participants were stratified by BMI to assess the relationship between degree of obesity and SB.


RESULTS
Participants wore the armband for 5.4 ± 0.7 days and 13.3 ± 1.7 h/day. On average, 81.4% (10.9 ± 2.1 h/day)of this time was spent in SB. Participants with BMI ≥ 50 spent nearly an hour more per day in SB than those with BMI 35–49.9 (p = 0.01).


CONCLUSIONS
Bariatric surgery candidates spend over 80%of their time in SB. Reducing SB may help to increase physical activity in these patients.
Bond
Dale S
DS
Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, 196 Richmond Street, Providence, RI 02903, USA. dbond@lifespan.org
Unick
Jessica L
JL
Jakicic
John M
JM
Vithiananthan
Sivamainthan
S
Pohl
Dieter
D
Roye
G Dean
GD
Ryder
Beth A
BA
Sax
Harry C
HC
Giovanni
Jeannine
J
Wing
Rena R
RR
D000328:Adult; D050110:Bariatric Surgery; D015992:Body Mass Index; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity; D057185:Sedentary Behavior; D013997:Time Factors
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