I've already confessed that I slacked off lifting for nearly a month. Yesterday, I resumed the iron sport, doing my leg workout. I cut back to minimal repetitions but kept my sets at five. Today, there is no doubt in my mind about what the deadlift and squat work. I know the former emphasizes the posterior chain: glutes, hamstrings, and spinal erectors. The latter emphasizes the anterior chain: glutes, quads, adductors, and calves, with less emphasis on the hamstrings. But what endears these movements so much to me is what else is sore today. I feel yesterday's workout in my traps, rear deltoids, pecs, obliques, and abs, too. This is why strength athletes debate which is the "king" of exercises, squats, or deadlifts. I'd never consider doing only one of these movements because the anterior and posterior legs both need to be worked. But leg day can be considered full body day.
The ability to lift an object off the ground is a foundational functional exercise and basic to health and well-being. They are my starting point in strength training.