TY - JOUR
T1 - Accelerometer-derived Total Activity Counts, Bouted Minutes of Moderate to Vigorous Activity, and Insulin Resistance
T2 - NHANES 2003-2006
AU - Boyer, William R.
AU - Wolff-Hughes, Dana L.
AU - Bassett, David R.
AU - Churilla, James R.
AU - Fitzhugh, Eugene C.
N1 - Boyer, Wolff-Hughes, D. L., Bassett, D. R., Churilla, J. R., & Fitzhugh, E. C. (2016). Accelerometer-Derived Total Activity Counts, Bouted Minutes of Moderate to Vigorous Activity, and Insulin Resistance: NHANES 2003–2006. Preventing Chronic Disease, 13, E146–E146. https://doi.org/10.5888/pcd13.160159
PY - 2016/10/20
Y1 - 2016/10/20
N2 - Introduction The objective of this study was to compare the associations of accelerometer- derived total activity counts per day and minutes of bouted moderate to vigorous physical activity (MVPA) with insulin resistance. Methods The sample included 2,394 adults (aged ≥20 y) from the 2003-2006 National Health and Nutrition Examination Survey. Time spent in MVPA, measured by using 2 cutpoints (≥2,020 counts/min [MVPA2,020] and ≥760 counts/min [MVPA760]), was calculated for bouts of at least 8 to 10 minutes. Total activity counts per day reflects the total amount of activity across all intensities. Insulin resistance was measured via the homeostatic model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI). Two nested regression models regressed HOMA-IR and QUICKI, respectively, on minutes of bouted MVPA and total activity counts per day. We used an adjusted Wald F statistic to illustrate strength of association. Results After adjustment for covariates, total activity counts per day was more strongly associated with both HOMA-IR (adjusted Wald F = 36.83, P < .001) and QUICKI (adjusted Wald F = 29.44, P < .001) compared with MVPA2,020 (HOMA-IR, adjusted Wald F = 4.00, P = .06; QUICKI, adjusted Wald F = 1.08, P = .31).Total activity counts per day was more strongly associated with both HOMA-IR (adjusted Wald F = 13.64, P < .001) and QUICKI (adjusted Wald F = 12.10, P < .001) compared with MVPA760 (HOMA-IR, adjusted Wald F = 1.13, P = .30; QUICKI, adjusted Wald F = 0.97, P = .33).
AB - Introduction The objective of this study was to compare the associations of accelerometer- derived total activity counts per day and minutes of bouted moderate to vigorous physical activity (MVPA) with insulin resistance. Methods The sample included 2,394 adults (aged ≥20 y) from the 2003-2006 National Health and Nutrition Examination Survey. Time spent in MVPA, measured by using 2 cutpoints (≥2,020 counts/min [MVPA2,020] and ≥760 counts/min [MVPA760]), was calculated for bouts of at least 8 to 10 minutes. Total activity counts per day reflects the total amount of activity across all intensities. Insulin resistance was measured via the homeostatic model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI). Two nested regression models regressed HOMA-IR and QUICKI, respectively, on minutes of bouted MVPA and total activity counts per day. We used an adjusted Wald F statistic to illustrate strength of association. Results After adjustment for covariates, total activity counts per day was more strongly associated with both HOMA-IR (adjusted Wald F = 36.83, P < .001) and QUICKI (adjusted Wald F = 29.44, P < .001) compared with MVPA2,020 (HOMA-IR, adjusted Wald F = 4.00, P = .06; QUICKI, adjusted Wald F = 1.08, P = .31).Total activity counts per day was more strongly associated with both HOMA-IR (adjusted Wald F = 13.64, P < .001) and QUICKI (adjusted Wald F = 12.10, P < .001) compared with MVPA760 (HOMA-IR, adjusted Wald F = 1.13, P = .30; QUICKI, adjusted Wald F = 0.97, P = .33).
UR - https://doi.org/10.5888/pcd13.160159
U2 - 10.5888/pcd13.160159
DO - 10.5888/pcd13.160159
M3 - Article
SN - 1545-1151
VL - 13
JO - Preventing Chronic Disease
JF - Preventing Chronic Disease
IS - E146
M1 - 160159
ER -