Adapting the exercises to suit an individual's present fitness level helps prevent unnecessary strain or potential injuries, said Aminder Singh, a fitness expert
How to Do a Plank With 4 Variations: Position & Form - NASM
How to Do a Perfect Push Up
What's the Best Way to Plank?
Planks vs Push Ups: What Would You Rather? - ClassPass Blog
The Health Benefits of Plank Exercises and How to Do a Plank Properly
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Planks or Push Ups? Bodily Exercise, by Chris O., Wisdom team
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Want a stronger core – skip the sit-ups - Harvard Health
Benefits of Plank Workout: How To Do Plank Exercise
7 Effective Push-up Alternatives + How to Do Them - FitOn
Muscles Worked Doing Pushups - FitBar Grip, Obstacle, Strength
How to Do the Perfect Plank Exercise - Best Abs Workout Moves