Light-intensity PA was found to be beneficially associated with obesity , markers of lipid and glucose metabolism , and mortality .
Conclusions Observational evidence that light-intensity PA can confer health benefits is accumulating .
Background The health effects of light-intensity physical activity ( PA ) are not well known today .
Objective We conducted a systematic review to assess the association of accelerometer-measured light-intensity PA with modifiable health outcomes in adults and older adults .
Light physical activity determined by a motion sensor decreases insulin resistance, improves lipid homeostasis and reduces visceral fat in high-risk subjects: PreDiabEx study RCT
Objective : To examine physical activity ( PA ) thresholds affecting glucose , insulin and lipid concentrations and body fat composition in high-risk patients for type 2 diabetes (T2D).Intervention : A total of 113 subjects of both genders having abnormal glucose levels in the oral glucose tolerance test were contacted . A total of 78 subjects with age 58.8±10.4 years and body mass index 31.7±5.3 kg m−2 were r and omly assigned to intervention and control groups . Intervention consisted of a supervised walking ( 60 min three times weekly ) for 3 months . All the subjects received st and ard care for PA and weight reduction and wore an accelerometer during the whole wakeful time . Results : Over 80 % of the daily steps clustered at an acceleration level of 0.3–0.7 g ( 2–3 km h−1 of walking ) and were 5870 in the intervention and 4434 in the control group ( P<0.029 ) . Between 0 and 3 months no significant changes were observed in fasting and 2-h glucose , body weight or maximal oxygen uptake . In contrast , changes in fasting and 2-h insulin ( −3.4 mU l−1 , P=0.035 and −26.6 , P=0.003 , respectively ) , homeostasis model assessment -estimated insulin resistance ( −1.0 , P=0.036 ) , total cholesterol ( −0.55 mmol l−1 , P=0.041 ) , low-density lipoprotein ( LDL ) cholesterol ( −0.36 mmol l−1 , P=0.008 ) and visceral fat area ( −5.5 cm2 , P=0.030 ) were significantly greater in the intervention than in control subjects . The overall effects of PA were analyzed by quartiles of daily steps of all subjects . There were significant reductions in total and LDL cholesterol and visceral fat area between the highest ( daily steps over 6520 ) and the lowest quartile ( 1780–2810 daily steps ) . The changes associated with PA remained significant after adjustments of baseline , sex , age and body weight change . Conclusion : Habitual and structured PAs with the acceleration levels of 0.3–0.7 g and daily steps over 6520 , equivalent to walking at 2–3 km h−1 for 90 min daily , st and ing for the relative PA intensity of 30–35 % of the maximal oxygen uptake , are clinical ly beneficial for overweight/obese and physically inactive individuals with a high risk for T2D
Light-intensity PA was found to be beneficially associated with obesity , markers of lipid and glucose metabolism , and mortality .
Conclusions Observational evidence that light-intensity PA can confer health benefits is accumulating .
Background The health effects of light-intensity physical activity ( PA ) are not well known today .
Objective We conducted a systematic review to assess the association of accelerometer-measured light-intensity PA with modifiable health outcomes in adults and older adults .