Association Between Wake-Time Movement Behaviors and Weight Loss Maintenance

Area of Science:

• Behavioral science
• Exercise physiology
• Obesity research

Background:

• Weight loss maintenance is a significant public health challenge.
• Understanding the role of daily movement patterns is crucial for long-term success.
• Previous research has not fully explored the compositional aspects of wake-time behaviors.

Purpose of the Study:

• To investigate the association between the composition of wake-time movement behaviors and weight loss maintenance.
• To determine if reallocating time between sedentary time (ST), light physical activity (LPA), and moderate-to-vigorous physical activity (MVPA) impacts weight regain.
• To analyze these associations using compositional data analysis.

Main Methods:

• Secondary analysis of a behavioral weight loss maintenance intervention.
• 153 participants with clinically meaningful weight loss (>5%) were studied over 12 months.
• Wake-time behaviors (ST, LPA, MVPA) were measured via accelerometry; compositional data analysis was employed.

Main Results:

• Wake-time movement composition significantly predicted weight regain (p=0.001).
• Increased moderate-to-vigorous physical activity (MVPA) was associated with less weight regain.
• Shifting 10 minutes daily from ST or LPA to MVPA correlated with reduced weight regain (-0.32 kg and -0.37 kg, respectively).

Conclusions:

• The composition of daily physical activity, particularly higher MVPA, is key for weight loss maintenance.
• Behavioral interventions should focus on increasing MVPA to support long-term weight management.
• Optimizing the balance of wake-time behaviors can effectively reduce weight regain.