Final answer:
CSEP recommends muscle and bone strengthening activities with major muscle groups at least 2 days per week.
Step-by-step explanation:
The Canadian Society for Exercise Physiology (CSEP) recommends that adults engage in muscle and bone strengthening activities that use major muscle groups at least 2 days per week. These activities should be of at least moderate intensity and include examples such as push-ups, sit-ups, squats, and lifting weights. The CSEP guidelines are in line with other evidence-based recommendations, such as the 2018 Physical Activity Guidelines for Americans from the Department of Health and Human Services (HHS), which similarly advise muscle-strengthening activities on 2 or more days per week for additional health benefits. Regular engagement in such activities can improve health by increasing muscle strength, bone density, and overall physical fitness.