Intervening on spontaneous physical activity to prevent weight regain in older adults: design of a randomized, clinical trial.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Nicklas BJ, Gaukstern JE, Legault C, Leng I, Rejeski WJ. Intervening on spontaneous physical activity to prevent weight regain in older adults: design of a randomized, clinical trial. Contemp Clin Trials. 2012 Mar; 33(2):450-5.