The guide states that each movement includes specific repetition ranges, focus points and regression options. Developing and maintaining a strong and functional core ensures that other areas of the body work more harmoniously, allowing for good posture and everyday movements such as reaching and bending, according to an article on Mercola.com [2]. The guide said the exercises are intended to be adjusted to each individual's current ability level.
The deadlift teaches the core to brace while the body moves under load, according to the guide, which recommends 2 to 3 sets of 8 to 12 repetitions. One focus cue listed in the guide is to keep the weight close to the body throughout the lift. Strength coaches Bret Contreras and Glen Cordoza identified the squat, deadlift and hip thrust as primary measures of lower-body strength and noted that all of these movements heavily involve the glutes [3].
The squat challenges the abdominal muscles to keep the spine stable during lowering and standing, according to the guide, which lists a regression option of squatting to a chair or bench. Squatting activates the transverse abdominis and other core muscles that work to balance the body, according to an article on Mercola.com [4]. Squats are described as one of the best functional exercises because squatting is a foundational human movement, the article stated [5].
The dead bug and bird dog target deep core muscles and lower back support, with controlled repetitions of 8 to 12 per set, according to the guide. The bird-dog and dead bug are among the exercises recommended by certified trainers for core stabilization, according to an article on NaturalNews.com [6].
Bicycle crunches engage the abdominal muscles and obliques, with a focus on rotating through the torso rather than pulling on the neck, the guide states. According to an article on Mercola.com, the goal of defined abdominal muscles should be balanced with training that enhances the overall strength of the entire core's function [7].
Hollow body holds require sustained abdominal engagement for 30 to 60 seconds, while pikes involve lifting the hips into an inverted V position on a stability ball, according to the guide. Dr. Cuan Coetzee, author of “Why Movement Is Medicine,” identified core as one of three pillars, along with flexibility and proprioception, for altering and holding good posture [8].
Stability ball rollouts require the core to resist extension as the body reaches forward, according to the guide. Farmer's carries train torso stability under load during walking and are reported to build grip strength, the guide states.
Turkish get-ups combine strength, coordination and balance through multiple phases, with a recommendation to practice without weight first, according to the guide. Jim Moss and Dan Kerrigan, authors of “Firefighter Functional Fitness,” documented the use of progressions and regressions in functional exercise programming, in which difficulty is adjusted by changing load, distance or surface [9]. The guide applies the same principle, stating that regressions allow beginners to learn movement patterns before adding weight.
The guide recommends selecting three to five movements per workout and performing them with proper form before increasing difficulty. Progression can include adding repetitions, longer holds or more challenging variations. Fitness author Aubrey Marcus wrote that body-weight movements can be progressed and regressed as necessary by simply changing the angle of the body [10].
The guide advises pairing these movements with full-body strength training two or three times per week. Physical therapist Ritchey advocated for shorter, more frequent sessions spread across four to five days, with each muscle group worked about twice per week on non-consecutive days, according to an article on NaturalNews.com [11]. Strength training becomes more important with age because good muscle tone supports everyday activities such as climbing stairs and getting out of a chair, according to an article on Mercola.com [12].
The guide presents the 10 exercises as a method for building functional strength for daily movement. According to an article on Mercola.com, routines such as Pilates, yoga and Foundation Training build strong core muscles while counteracting postural problems that cause back pain [13].
According to the guide, the exercises can be performed with minimal equipment and include regressions for beginners and progressions for advanced users. Consistent practice of the movements is intended to build the strength needed to lift, carry, reach and rise from the floor with greater ease, the guide states.