title: The effect of exercise on affective and self-efficacy responses in older and younger women.
abstract: BACKGROUND
  This study examined the self-efficacy and affective responses to an acute exercise bout in sedentary older and younger women to determine whether aging has an effect on affective states.
  
  
  METHODS
  Twenty-five sedentary younger (mean age = 19.9 yrs) and 25 older (mean age = 55.7 yrs) women completed an acute bout of exercise. Affective responses were measured before, during, and immediately following exercise. Self-efficacy responses were measured before and immediately following exercise.
  
  
  RESULTS
  Positive engagement, revitalization, tranquility, Felt Arousal and Feeling Scale responses, and self-efficacy were all higher immediately following compared with before or during exercise for both groups of women. In addition, older women experienced higher overall positive engagement and lower physical exhaustion compared with younger women as well as higher tranquility and Feeling Scale responses immediately following exercise.
  
  
  CONCLUSIONS
  This investigation found that an acute bout of moderate-intensity exercise produced more positive and fewer negative affective states in both younger and older women.
authors.affiliation: Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland, Australia.
authors.forename: Fiona
authors.initials: F
authors.lastname: Barnett
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect; D000368:Aged; D000375:Aging / Q000523:psychology; D015992:Body Mass Index; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D005082:Physical Exertion; D057185:Sedentary Behavior; D020377:Self Efficacy; D012959:Socioeconomic Factors