Are Our Bodies Supposed To Move Like This
Are Our Bodies Supposed to Move Like This? Unpacking Natural Human Biomechanics and Modern Maladaptations
The human body is an evolutionary marvel, engineered over millennia for efficient, powerful, and adaptable movement. Understanding what constitutes "natural" human biomechanics is crucial for diagnosing and rectifying prevalent musculoskeletal issues that plague modern society. This exploration delves into the foundational principles of human locomotion, the impact of sedentary lifestyles, and how reclaiming our innate movement patterns can foster greater health and resilience.
At its core, natural human movement is a complex symphony of integrated actions. Consider the fundamental act of walking. It’s not merely about placing one foot in front of the other. A properly executed gait involves a coordinated interplay of hip rotation, core stabilization, arm swing, and subtle adjustments in the ankle and foot. The pelvis acts as a pivotal link, transferring force from the legs to the torso and vice versa. The core muscles, including the abdominals, obliques, and erector spinae, engage to maintain a stable trunk, preventing excessive rotation and allowing the limbs to move freely and efficiently. The arms swing in opposition to the legs, providing counterbalance and contributing to forward momentum. The feet, designed with arches that act as natural shock absorbers, distribute impact forces across a wide network of bones and connective tissues. This intricate dance of muscles, bones, and joints allows for a smooth, energy-efficient stride that can be sustained over long distances.
Contrast this with the typical modern gait. Due to prolonged sitting, many individuals experience hip flexor tightness, leading to a shortened stride and reduced hip extension. This can cause the pelvis to tilt anteriorly, placing undue stress on the lower back. Weakened gluteal muscles, often a consequence of inactivity, result in a less powerful push-off and an increased reliance on hamstrings and lower back muscles for propulsion, further exacerbating back pain. The lack of natural arm swing, often due to carrying bags or simply a lack of conscious awareness, disrupts the body’s natural rotational patterns and can contribute to upper back stiffness and shoulder impingement. Foot mechanics are also compromised. Shoes that are overly rigid or lack arch support can lead to the weakening of intrinsic foot muscles and a loss of natural pronation and supination, the subtle rolling motions that are essential for shock absorption and adaptation to uneven terrain. This can cascade into issues up the kinetic chain, affecting the knees, hips, and even the spine.
Beyond walking, consider squatting. The deep squat, a fundamental human movement pattern, allows for efficient load bearing and provides access to the full range of motion in the hips, knees, and ankles. Historically, humans would have spent significant time in deep squat positions for various activities, from defecation to resting to crafting tools. This natural position promotes flexibility and strength in the posterior chain, including the glutes and hamstrings, and encourages proper lumbar spine neutral positioning. The modern tendency to utilize chairs for sitting, even for short periods, drastically limits ankle dorsiflexion and hip flexion, leading to the aforementioned hip flexor tightness and reduced ankle mobility. This makes achieving a deep, pain-free squat a challenge for many. When forced to squat, individuals often compensate by rounding their lower back, lifting their heels prematurely, or relying on a narrow stance, all of which are indicative of a loss of natural biomechanical proficiency.
The concept of spinal mobility is another area where modern habits diverge significantly from our evolutionary design. The human spine is comprised of a series of vertebrae designed to allow for flexion (forward bending), extension (backward bending), and rotation. These movements, when performed within a healthy range and with proper muscle engagement, are essential for everyday activities, from reaching for an object to looking over one’s shoulder. However, prolonged sitting, particularly in ergonomically poor positions, leads to a flattening of the natural lumbar curve and encourages a kyphotic (rounded) thoracic spine. This sustained flexion can lead to disc compression and a loss of the spine’s ability to extend and rotate effectively. The result is often a feeling of stiffness, restricted movement, and an increased susceptibility to back injuries. Our bodies are meant to move dynamically through all planes of motion, and a sedentary lifestyle effectively locks down this vital mobility.
Pushing and pulling are also fundamental human movements that are often compromised. Reaching for an object overhead, for instance, involves coordinated shoulder flexion, scapular upward rotation, and thoracic extension. Lifting a heavy object from the ground requires hip and knee flexion, a neutral spine, and the engagement of powerful leg and core muscles for leverage. In contrast, many daily tasks involve repetitive, constrained movements. Typing on a keyboard, for example, leads to prolonged shoulder adduction and internal rotation, potentially contributing to impingement syndromes. Lifting groceries often involves a rounded back and a reliance on arm strength rather than proper body mechanics. This lack of diverse pushing and pulling activities, especially those involving full range of motion and significant load, leads to imbalances in the musculature surrounding the shoulder girdle and the torso, impacting posture and overall functional capacity.
The development of grip strength and hand dexterity is another area where natural human movement patterns are declining. Our ancestors would have utilized their hands for a vast array of tasks: climbing, grasping tools, manipulating food, and building shelters. This constant engagement of the intrinsic and extrinsic muscles of the hands and forearms fostered robust grip strength and fine motor control. Today, our hands are largely engaged in passive activities like holding phones, using keyboards, and manipulating smaller, lighter objects. This reduced demand leads to a weakening of grip, which has been linked to broader health indicators. Furthermore, the loss of varied tactile experiences, from rough natural surfaces to intricate manipulation, may impact sensory processing and proprioception within the hands.
The impact of technology and urbanization on natural movement patterns is undeniable. We are a species that evolved to walk, run, climb, and crawl over varied terrain, exposed to the elements, and engaged in activities that required constant physical exertion and adaptation. Modern life, however, has largely insulated us from these demands. We commute in cars, sit at desks, and engage with the world through screens. This disconnect from our evolutionary biomechanical blueprint has led to a host of issues, including increased rates of obesity, cardiovascular disease, diabetes, and a pervasive increase in musculoskeletal pain. The human body is not designed to be static for extended periods. It craves movement, variation, and the challenges that stimulate adaptation and resilience.
Reclaiming natural movement involves a conscious effort to reintroduce these foundational patterns into our daily lives. This doesn’t necessarily mean adopting an ascetic lifestyle, but rather incorporating targeted exercises and habits that address our modern maladaptations. Examples include practicing deep squats regularly, even without weight, to improve hip and ankle mobility. Incorporating crawling exercises can re-engage the core and promote contralateral movement patterns. Spending time barefoot on varied surfaces can help re-strengthen foot muscles and improve balance. Incorporating exercises that mimic natural pushing and pulling motions, such as overhead presses and rows with proper form, can improve shoulder and upper back health. Prioritizing movement throughout the day, breaking up prolonged sitting with short walks or stretches, is also paramount. The goal is not to achieve a specific aesthetic, but to restore the body’s innate capacity for efficient, pain-free, and resilient movement, allowing it to function as it was inherently designed. Understanding are our bodies supposed to move like this? is the first step in answering the more critical question: how can we move them better?
