I love core work and I love planks. There are so many different ways to modify and progress them, which makes them very accessible. This is a sequence I will throw into my yoga classes as part of the core sequence.
I will usually progress exercises by lifting the top leg in side planks, and alternating leg lifts in the forearm planks and dolphin poses. You can also increase the time that you hold each posture.
Get ready for some core and shoulder strength!
Disclaimer: Any exercise comes with a risk of injury. Always consult with your physician or trusted healthcare professional before beginning a new exercise routine and modify as needed to keep yourself safe.