Athena Vale
Walking is a rhythmic, dynamic, aerobic activity that provides many health benefits. It is considered a full-body workout, engaging muscles throughout the body. The muscles involved in walking include the gluteus maximus, gluteus medius, vasti, hamstrings, gastrocnemius, and soleus. The rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius work together to extend the knee while walking. The gluteus medius and minimus help to control the position of the pelvis and keep it stable when body weight is on one leg. The erector spinae muscles help to stabilise the spine during motion. Walking speed influences the level of muscle activity, with faster walking speeds generally resulting in increased muscle contributions.
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What You'll Learn
Gluteus maximus, medius and minimus
Walking is a rhythmic, dynamic, aerobic activity that involves the use of many muscles. The gluteal muscles, or glutes, are the main muscles in the buttocks and play a large role in stabilising, balancing, and controlling lower body movements and posture. There are three gluteal muscles: gluteus maximus, gluteus medius, and gluteus minimus. These muscles are responsible for various functions that enable walking.
The gluteus maximus is the largest of the glute muscles and helps to extend the leg. It is responsible for slowing down the leg as the foot strikes the ground. The gluteus maximus also works with the hamstrings to extend the hip of the rear leg during a stride. Both of these muscles are worked more intensely when walking on an incline.
The gluteus medius and gluteus minimus are smaller glute muscles that work together to abduct the thigh (move it away from the trunk) and to rotate it inward and outward. They also stabilise the hips and pelvis during locomotion, preventing the 'dropping' of the pelvis on the side opposite the raised leg. These muscles are part of the lateral sling, which starts from the hip and travels down the thigh to the knee. The lateral sling is responsible for stabilising, balancing, rotating, and abducting the hips.
The gluteal muscles receive nerve supply from the superior gluteal nerve, which originates from the dorsal branches of the L4, L5, and S1 nerve roots of the sacral plexus. Injury to the superior gluteal nerve can weaken or paralyse the gluteal muscles, affecting an individual's ability to walk, sit, and stand.
Walking provides many health benefits, including increased cardiovascular capacity and endurance, improved posture, and long-term weight control. It is an excellent form of exercise to work the muscles of the legs, limb girdle, and lower trunk, strengthening these muscles and preserving the flexibility of their cardinal joints.
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Hamstrings
Walking is a rhythmic, dynamic, aerobic activity of large skeletal muscles that confers many health benefits. It is also the most common weight-bearing activity, which increases bone strength.
The hamstring muscle group is one of the muscle groups that enable walking. Hamstrings are skeletal muscles at the back of the thigh, between the hip and the knee. They are biarticular muscles, which means they cross and act upon two joints – the hip and the knee. The three hamstring muscles are the biceps femoris, semitendinosus, and semimembranosus. These muscles work together to bend the knee of the leading leg while walking. The biceps femoris is on the outside of the back of the thigh, and its function is to flex the knee, extend the thigh at the hip, and rotate the lower leg from side to side when the knee is bent. The semitendinosus and semimembranosus extend the hip when the trunk is fixed, flex the knee, and medially (inwardly) rotate the lower leg when the knee is bent. The long head of the biceps femoris extends the hip, as when beginning to walk; both short and long heads flex the knee and laterally (outwardly) rotate the lower leg when the knee is bent.
The hamstrings play an important role in the complex gait cycle during walking, which includes the absorption of kinetic energy and protection of the knee and hip joints. During the swing phase of walking, the hamstrings decelerate the forward motion of the tibia and are crucial as an antagonist to the quadriceps in the deceleration of knee extension.
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Hip flexors
Walking is a rhythmic, dynamic, aerobic activity that offers many health benefits. It is also the most common weight-bearing activity, which increases bone strength. During walking, the muscles that support or propel the body are the most active and demonstrate the greatest force magnitudes.
The hip flexors are a group of muscles responsible for flexing the hip, or bringing the leg upward toward the body. The hip flexors include the iliopsoas, pectineus, rectus femoris, sartorius, iliacus, and psoas major. The iliopsoas is the body's most important hip flexor and is made up of the psoas major and the iliacus, which meet and insert at the top of the femur. The rectus femoris is one of the quadriceps and has two functions: flexing at the hip and extending the knee. The sartorius is the longest muscle in the body and crosses the hip and knee joints. It functions to flex the hip, adduct the thigh, and externally rotate the leg. The pectineus acts as a hip flexor and secondary adductor, originating on the superior pubic ramus and inserting on the pectineal line of the femur. The iliacus and psoas major are the primary hip flexors, working together to flex and stabilize the hip and pull the thigh and torso together during walking, running, sitting, or standing. The hip flexors make larger contributions to swing initiation and trunk propulsion at faster walking speeds.
Sitting for long periods can cause the hip flexor muscles to shorten and tighten, leading to functional problems such as anterior pelvic tilt and lumbar hyperlordosis. Weak hip flexors can also cause the pelvis to tilt. This can impact the rotation of the pelvis and cause lower back pain, hip pain, and injury. Hip flexor strengthening exercises may worsen hip tension, so it is important to work with a physical therapist to address any hip flexor issues. To keep the hip flexors supple, it is recommended to get up and move throughout the day, performing stretches to increase flexibility and mobility.
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Erector spinae
Walking is a dynamic, rhythmic, and aerobic activity that offers numerous health benefits. It involves the use of multiple muscle groups, including the erector spinae.
The erector spinae is a large, superficial muscle group that lies deep to the thoracolumbar fascia and arises from the erector spinae aponeurosis (ESA). It is one of the core and paraspinal muscles, playing a crucial role in spinal stability. The erector spinae is composed of three muscles: iliocostalis, longissimus, and spinalis. These muscles can be remembered using the mnemonic "I Love Spine."
The iliocostalis is the most lateral part of the erector spinae, attaching to the ribs and the sacrum. It helps control the position of the rib cage and pelvis. The longissimus forms the middle and thickest portion of the erector spinae, attaching along the transverse processes of the vertebrae. It is the main muscle of the group and helps extend and laterally flex the spine. The spinalis is the smallest and most medial column of the erector spinae, attaching to the spinous processes of the vertebrae. It assists in extending and laterally flexing the cervical and thoracic regions of the spine.
During walking, the erector spinae muscles are essential for controlling trunk movements and maintaining posture. They help to stabilize the spine and pelvis, especially when the body's weight is on one leg. Additionally, they enable movements such as standing up from a crouched position and leaning back. The erector spinae also compensate for delays in increasing the stiffness of the lumbar spine, although this increased activity can lead to a higher risk of injury.
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Rectus femoris
The rectus femoris is a muscle in the human body that is part of the quadriceps group. It is located in the superior, anterior middle compartment of the thigh, and is the only muscle in the quadriceps group that crosses the hip. The word "rectus" in its name comes from the Latin word for "straight", as the muscle runs straight down the thigh. It is a two-way acting muscle as it crosses over the hip and knee joints, allowing it to flex the hip and extend the knee. This makes it a hip flexor, with the ability to lift the foot off the ground and prevent tripping and falls. It is also known as the "kicking muscle" because of its role in forceful knee extension.
The rectus femoris is a fusiform-shaped muscle with superficial bipenniform fibres and deep, vertically oriented fibres. It has two origins: the direct head, which originates from the anterior inferior iliac spine, and the indirect head, which originates from the superior acetabular ridge. The rectus femoris is the most superficial and nearly vertically oriented muscle in the anterior thigh compartment. It is a component of the quadriceps muscle complex, which is one of the knee's most important dynamic stabilizers.
The rectus femoris is prone to injury because it crosses both the knee and the hip. A rectus femoris strain, also known as a hip flexor strain, is a common injury at the tendon that attaches to the patella or in the muscle itself. This injury is often caused by forceful movements related to sprinting, jumping, or kicking, and is frequently seen in sports such as football or soccer. Symptoms of a rectus femoris tear include sudden sharp pain at the front of the hip or groin, swelling and bruising, and an inability to contract the muscle with a full tear.
The rectus femoris is innervated by the femoral nerve, which originates from lumbar nerve roots L2 to S2. When the rectus femoris receives a nerve signal from the medial side of the precentral gyrus, it contracts, extending the knee and flexing the thigh at the hip. This nerve signal travels through the corticospinal tract, synapsing from upper motor neurons to lower motor neurons at spinal nerve L4.
The blood supply to the rectus femoris comes from the descending branch of the lateral circumflex femoral (LCF) artery, a branch of the femoral artery.
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Frequently asked questions
The gluteus maximus, the largest of the glute muscles, is involved in walking. It is responsible for slowing down the leg as the foot strikes the ground. The gluteus medius and minimus work to pull the leg sideways away from the body and help control the pelvis. The hamstring muscle group (biceps femoris, semitendinosus and semimembranosus) work together to bend the knee of the leading leg while walking.
Walking is a full-body workout, engaging muscles throughout the body. The erector spinae, multifidus, and the quadratus lumborum (QL)—which are muscles of the back and pelvis—are hard at work while walking. The hip flexors, abs, and back are all helping support your stride and keep you upright.
Walking is one of the simplest and most effective forms of exercise. It is a rhythmic, dynamic, aerobic activity of large skeletal muscles that confers many health benefits. Walking helps to sustain physical fitness and can aid in long-term weight control.
To get the most out of walking, you can try speed walking, walking uphill, or taking the stairs. Walking with wrist weights or light weights can help get an upper body workout.
