Agency Crew Strength Training 575 views 1 likes ESA / Education / Expedition: Home Perform body-weight squats and push-ups to develop upper and lower body strength in muscles and bones. Download: Keywords: Squats, push-ups, bone and muscle strengths, cardiac vascular, repetition, endurance, team work, resistance, heart rate Like Thank you for liking You have already liked this page, you can only like it once!