Role of physical activity in cancer prevention: An update

Table 1 Summary of evidence linking physical activity and cancer risk reduction

Cancer type	Evidence strength	Type of physical activity	Risk reduction (%)	Ref.
Breast	Strong	Aerobic, resistance	9%	Drummond et al[7], Poorolajal et al[9]
Liver	Strong	Aerobic	17.1%	Diao et al[35]
Lung	Strong	Aerobic, walking	5.9%	Diao et al[35]
Colorectal	Strong	Aerobic, walking, resistance	7.1%	Ahechu et al[18]
Endometrial	Strong	Aerobic, resistance	10%	Joshi et al[6]
Esophageal (adenocarcinoma)	Moderate	Aerobic, resistance	6%	McTiernan et al[36]
Renal	Moderate	Aerobic	8%	Friedenreich et al[11]
Bladder	Moderate	Walking, aerobic	4%	McTiernan et al[36]
Gastric	Moderate	Aerobic	5.1%	Diao et al[35]
Hematologic	Limited	Resistance, walking	Not specified	McTiernan et al[36]
Head and neck	Limited	Aerobic, walking	Not specified	McTiernan et al[36]
Ovarian	Limited	Aerobic, walking	Not specified	McTiernan et al[36]
Pancreas	Limited	Aerobic	Not specified	McTiernan et al[36]
Prostate	Limited	Vigorous, resistance	5%-10%	Shephard (2017)
Brain	Limited	Aerobic, resistance	Not specified	McTiernan et al[36]
Thyroid	Limited	Aerobic	Not specified	McTiernan et al[36]
Rectal	Limited	Aerobic, resistance	3%	McTiernan et al[36]