Form cues and tips:
Air squats: Stand with feet hip-width or slightly wider, and toes slightly turned out. Focus on sitting back, while keeping your chest lifted and a tight core. Inhale to lower, exhale to rise. Make sure that your knees go towards your toes, but not far past your toes. Sink your hips as low as your flexibility allows, whether it’s a small squat, or to hips just above knee level. You can squat lower than knee level if it works for you, but generally it’s not something that I recommend.
Air squat
Walking lunges: For your lunge setup, make sure your feet are hip distance apart, and think about sinking down instead of forward as you lunge. Watch the front knee to make sure it doesn’t extend past your toes. When you lift up to come to standing and switch legs, lift the back leg up behind you (squeeze your booty!) before bringing it forward.
Walking lunge
Triceps dips: Place your hands on a bench behind you. Either bend your knees with your feet flat on the floor or straighten your legs in front of you for more of a challenge. For even more of a challenge, place a flat plate on your legs. Bend your elbows straight back and keep your back close to the bench. Keep your chest lifted and shoulders down. Push back to start.
Triceps dip
Push-ups: On your knees, toes, or modified against a wall. Keep your hips down in line with your spine, and exhale, squeezing your chest, to rise.