Effects Of Exercise Programs On Affective And Enjoyment Responses For Overweight Adults Of Different Ages

Objective:This experiment explored the effects of MICE and three different modes of HIIE on the affective valence and enjoyment during and after exercise among overweight adults of different ages.Methods:The pre-study used the Physical Activity Rating Scale and the ACSM Health/Fitness Screening Questionnaire to screen out 30 study participants who were overweight and inadequate in physical activity,of whom 15 were aged 20-30 and 15were aged 35-45,Performed a maximal oxygen uptake test and determine the intensity of exercise intervention.Study 1（20-30 years old study participants）and Study 2（35-45 years old study participants）used within group experiment design,independent variable 1 was exercise program（30s-HIIE,60-HIIE,90-HIIE,MICE）,independent variable 2 was the measurement time point（at the beginning of the exercise,the completion of the exercise period and the recovery period 20%,40%,60%,80%,100%,10 minutes after completion）.The dependent variable was a scale score that measures affective valence and enjoyment.Study participants participated in four exercise interventions,one MICE(60%VO_2max,45 minutes)and three HIIE(80%VO_2max,during exercise and recovery time,respectively 30s,60s,90s,30 minutes).The intervention order was random and energy expenditure remained consistent.Results:1)Study 1:for affective valence in exercise,the main effect of exercise program was significant F（3,272）=3.767,p=.016,η_p²=.170,MICE and 30s-HIIE were higher than 90s-HIIE,the main effect of measurement time was significant F（5,270）=3.068,p=.010,η_p²=.053,the interaction between the two was not significant;for enjoyment in exercise,the main effect of exercise program was significant F（3,15）=4.081,p=.011,η_p²=.179,30s-HIIE was higher than MICE,60s-HIIE and 90s-HIIE,the main effect of measurement time was significant F（4,15）=21.880,p<.001,η_p²=.281,the interaction between the two was not significant;for enjoyment after exercise,the main effect of exercise program was significant F（3,52）=17.247,p<.001,η_p²=.485,30s-HIIE was higher than MICE,60s-HIIE and 90s-HIIE.2)Study 2:for affective valence in exercise,the main effect of exercise program was significant F（3,15）=12.505,p<.001,η_p²=.405,MICE and 30s-HIIE were higher than 60s-HIIE and90s-HIIE,the main effect of measurement time was significant F（5,15）=2.566,p=.027,η_p²=.045,the interaction between the two was significant F（3,15）=2.033,p=.013,η_p²=.100,90s-HIIE affective valence dropped fastest and to the greatest extent;for enjoyment in exercise,the main effect of exercise program was significant F（3,15）=4.067,p=.011,η_p²=.179,MICE was higher than 30s-HIIE,60s-HIIE and 90s-HIIE,the main effect of measurement time was significant F（4,15）=17.073,p<.001,η_p²=.234,the interaction between the two was not significant;for enjoyment after exercise,the main effect of exercise program was significant F（3,52）=8.331,p<.001,η_p²=.312,MICE was higher than 30s-HIIE,60s-HIIE and 90s-HIIE.Conclusion:1)For overweight adults with insufficient physical activity,the 1:1HIIE exercise with a duration of exercise of 30s has the most positive affective valence,and the highest enjoyment during and after exercise;the second is 60s-HIIE,90s-HIIE affective valence is the most negative,and the enjoyment is the lowest during and after exercise.2)Exercise programs have different effects on enjoyment during and after exercise for overweight adults of different ages.Adults 20-30 years old have higher enjoyment in 30s-HIIE;35-45 years old adults have higher enjoyment in MICE.This suggests that the exerciser’s emotional experience and age differences need to be considered when providing exercise prescriptions.