Processes and Strategies for Collaboratively Purchasing Electronic Resources

Academic libraries collaborate to enhance and expand library services. However, libraries may not pursue collaborative electronic resource acquisitions due to complexity and the lengthy negotiation process. Two University of Minnesota campus libraries conducted a year-long pilot project to investigate intentional and proactive cooperative e-resource acquisitions. This article discusses the key strategies, processes, and lessons learned for collaboratively purchasing content, along with recommended best practices

Motivational profiles and change in physical activity during a weight loss intervention: a secondary data analysis

Background High levels of moderate-to-vigorous intensity physical activity (MVPA) are strongly associated with sustained weight loss, however the majority of adults are unsuccessful in maintaining high levels of MVPA long-term. Our goal was to identify profiles based on exercise motives, and examine the association between motivational profile and longitudinal changes in MVPA during a weight loss intervention. Methods Adults with overweight or obesity (n&thinsp;=&thinsp;169, mean&thinsp;&plusmn;&thinsp;SE; age 39&thinsp;&plusmn;&thinsp;0.7&thinsp;years, BMI 34.4&thinsp;&plusmn;&thinsp;0.3&thinsp;kg/m2, 83% female) underwent an 18-month behavioral weight loss program, including 6&thinsp;months of supervised exercise, followed by 6&thinsp;months of unsupervised exercise. Participants self-reported behavioral regulations for exercise at baseline (BREQ-2). Latent profile analysis identified subgroups from external, introjected, identified, and intrinsic regulations measured at baseline. Mean differences in device-measured total MVPA were compared across motivational profiles at baseline, after 6&thinsp;months of supervised exercise and after a subsequent 6&thinsp;months of unsupervised exercise. Results Three motivational profiles emerged: high autonomous (high identified and intrinsic, low external regulations; n&thinsp;=&thinsp;52), high combined (high scores on all exercise regulations; n&thinsp;=&thinsp;25), and moderate combined (moderate scores on all exercise regulations; n&thinsp;=&thinsp;92). Motivational profile was not associated with baseline level of MVPA or the increase in MVPA over the 6-month supervised exercise intervention (high autonomous: 21&thinsp;&plusmn;&thinsp;6&thinsp;min/d; high combined: 20&thinsp;&plusmn;&thinsp;9&thinsp;min/d; moderate combined: 33&thinsp;&plusmn;&thinsp;5&thinsp;min/d; overall P&thinsp;&gt;&thinsp;0.05). However, during the transition from supervised to unsupervised exercise, MVPA decreased, on average, within all three profiles, but the high autonomous profile demonstrated the least attenuation in MVPA (&minus;&thinsp;3&thinsp;&plusmn;&thinsp;6&thinsp;min/d) compared to the moderate combined profile (&minus;&thinsp;20&thinsp;&plusmn;&thinsp;5&thinsp;min/d; P&thinsp;=&thinsp;0.043). Conclusions Results were in alignment with the Self-Determination Theory. Adults motivated by autonomous reasons (value benefits of exercise, intrinsic enjoyment) may be more likely to sustain increases in MVPA once support is removed, whereas participants with moderate-to-high scores on all types of exercise regulations may need additional long-term support in order to sustain initial increases in MVPA.</p

Physical Activity Energy Expenditure and Total Daily Energy Expenditure in Successful Weight Loss Maintainers

International audienceObjective: The objective of this study was to compare physical activity energy expenditure (PAEE) and total daily energy expenditure (TDEE) in successful weight loss maintainers (WLM) with normal weight controls (NC) and controls with overweight/obesity (OC). Methods: Participants were recruited in three groups: WLM (n = 25, BMI 24.1 ± 2.3 kg/m 2 ; maintaining ≥ 13.6-kg weight loss for ≥ 1 year), NC (n = 27, BMI 23.0 ± 2.0 kg/m 2 ; similar to current BMI of WLM), and OC (n = 28, BMI 34.3 ± 4.8 kg/m 2 ; similar to pre-weight loss BMI of WLM). TDEE was measured using the doubly labeled water method. Resting energy expenditure (REE) was measured using indirect calorimetry. PAEE was calculated as (TDEE − [0.1 × TDEE] − REE). Results: PAEE in WLM (812 ± 268 kcal/d, mean ± SD) was significantly higher compared with that in both NC (621 ± 285 kcal/d, P < 0.01) and OC (637 ± 271 kcal/d, P = 0.02). As a result, TDEE in WLM (2,495 ± 366 kcal/d) was higher compared with that in NC (2,195 ± 521 kcal/d, P = 0.01) but was not significantly different from that in OC (2,573 ± 391 kcal/d). Conclusions: The high levels of PAEE and TDEE observed in individuals maintaining a substantial weight loss (−26.2 ± 9.8 kg maintained for 9.0 ± 10.2 years) suggest that this group relies on high levels of energy expended in physical activity to remain in energy balance (and avoid weight regain) at a reduced body weight