Results Physical activity was associated with numerous health benefits .
The dose-response relations observed in observational studies indicate that the more physical activity , the greater the health benefit .
Results from experimental studies indicate that even modest amounts of physical activity can have health benefits in high-risk youngsters ( e.g. , obese ) .
Vigorous intensity activities may provide even greater benefit .
Aerobic-based activities had the greatest health benefit , other than for bone health , in which case high-impact weight bearing activities were required .
Some of the health benefits can be achieved through an average of 30 minutes per day . [
Level 2 , Grade A ] .
Background The purpose was to : 1 ) perform a systematic review of studies examining the relation between physical activity , fitness , and health in school-aged children and youth , and 2 ) make recommendations based on the findings .
The effects of physical activity and exercise training on psychological stress and well-being in an adolescent population.
To determine whether participating in physical activity affects psychological well-being in an adolescent population , 147 adolescents completed self-reports of exercise and psychological stress and well-being . Analysis revealed that those who reported greater physical activity also reported less stress and lower levels of depression . Adolescents who experienced a higher incidence of life events also demonstrated a strong association between stress and anxiety/depression/hostility . To investigate the effects of exercise training on psychological well-being , adolescents were assigned to either high or moderate intensity aerobic training , flexibility training or a control group . The training groups met twice per week for 25 - 30 min . Aerobic fitness levels , heart rate , blood pressure and self-report of stress and well-being were measured prior to and following 10 weeks of training . Post-training fitness measures confirmed the effectiveness of the high intensity aerobic exercise and between groups differences for physiological and some psychological measures were found . Subjects undergoing high intensity exercise reported significantly less stress than subjects in the remaining three groups . The relationship between stress and anxiety/depression/hostility for the high intensity group was considerably weakened at the end of the training period . For the remaining subjects , however , this relationship was , if anything , strengthened . This experiment provides evidence to suggest that in an adolescent population , high intensity aerobic exercise has positive effects on well-being
Results Physical activity was associated with numerous health benefits .
The dose-response relations observed in observational studies indicate that the more physical activity , the greater the health benefit .
Results from experimental studies indicate that even modest amounts of physical activity can have health benefits in high-risk youngsters ( e.g. , obese ) .
Vigorous intensity activities may provide even greater benefit .
Aerobic-based activities had the greatest health benefit , other than for bone health , in which case high-impact weight bearing activities were required .
Some of the health benefits can be achieved through an average of 30 minutes per day . [
Level 2 , Grade A ] .
Background The purpose was to : 1 ) perform a systematic review of studies examining the relation between physical activity , fitness , and health in school-aged children and youth , and 2 ) make recommendations based on the findings .