Movement pattern blueprint
The primary focus of this exercise lies in one of the key movement patterns, bending (bending and extending in the hip joint). The ground-lifting movement, commonly utilized in daily activities, is refined during training to ensure correct and safe operation of the motion system. It is essential to emphasize that, in order to achieve the anticipated results, the movement pattern in this exercise must be performed flawlessly.
What muscles partake in this activity?
The dead sequence engages almost all of the muscles in our body, with a focus on the lower part, in particular: - the gluteal muscles, - the hamstring muscles, - the quadriceps muscles, - the back and abdominal muscles, - the shoulder muscles. It is often stated that the main muscle group targeted by the dead sequence is the back muscles. However, an EMG study has shown that in this exercise, the abdominal muscles (55-60%) are the most active, followed by the quadriceps (20-58%) and the hamstring and gluteal muscles (38-48%). The back muscles have a moderate level of activity at 10-43%.
Functional capability
Upon contemplating the two previously mentioned factors, it becomes evident that exercise fits ideally within the definition of a functional muscle group as outlined by W. Mayers. The functional muscle group is a set of muscles that play a critical role in athletic activities, but equally so in the most ordinary walking, since one side of the body stabilizes the other. These muscles are activated, among other things, during the act of ball/javelin throwing, racket/racquet swinging, changing the direction of a run, and rowing. The functional muscle group comprises: - the latissimus dorsi muscle, - the gluteus maximus muscle, - the vastus lateralis muscle, as well as - the lower edge of the pectoralis major muscle, - the lateral section of the rectus abdominis muscle, - the long adductor muscle. Considering the muscle activity during the deadlift and the intricacy of the exercise, this translates into the development mainly of the posterior functional muscle group, which directly correlates with maximizing athletic performance and enhancing human agility. Individuals who appreciate physical agility, irrespective of whether they engage in recreational sports or are professional athletes, should perform deadlifts to attain optimal results.
Restoration of functionality
This variant of exercises can be utilized as targeted training during the process of restoring functionality after certain spinal injuries. It should be noted that a sequence of disappearance can only become a goal-oriented exercise after an earlier process of restoring functionality and appropriate reinforcement. To perform this, a flawless mastery of the technique is required. The entire process must be closely monitored and recommended by a specialist in restoring functionality, physiotherapist, or physician.
Decrease or muscle mass
Due to its universality, this type of exercise is suitable for both fat tissue reduction and muscle mass increase. In the case of fat tissue reduction, the high number of muscles involved in the exercise results in a high level of energy expenditure, which supports the process of fat reduction. In the case of wanting to increase muscle mass, the exercise allows the use of a high load, leading to an increase in intensity, which in turn intensifies the pathways of muscle hypertrophy. 2. Deadlift - different execution methods: Due to the complexity of this exercise, there are many variants of this training, which consider the type of barbell and execution technique.
The classification of the bar in use
In exercise, we can utilize two categories of bars - straight and hexagonal, also known as the trap bar. The difference in the category of bar predominantly impacts the starting position and the arrangement of the individual body parts, which affects the muscle activation during these two variations of the deadlift. It is presumed that the deadlift with the use of a trap bar is safer due to the position of the load being in the axis of the center of gravity compared to the same exercise performed with a straight bar.
Implementation methods
Depending on the technique employed, we can distinguish several fundamental variations of training:, , , and the Romanian deadlift. These primary variants can be modified by introducing additional changes such as introducing a deficit, performing a deadlift from the bases, changing the bar to dumbbells, increasing the grip width. Each variant can influence the engagement of specific muscles during the deadlift, making it a very versatile exercise. Within the main goal of recreational training aimed at maintaining health, this exercise must be executed safely. Therefore, we should follow several essential rules: the bar should be as near to the body as possible during movement, the back should be rigid, the spine should maintain its natural curvatures, the head should be a natural extension of the spine, and with each repetition, a readjustment of the weight should occur. The above guidelines are merely fundamental instructions, and most technical elements should be considered individually depending on the specific technique. An essential aspect is also selecting the appropriate weight, which is often the source of errors.
Fables and uncertainties
Here are a few fables related to this activity.
Lifting dead weight can harm my back/spine
In actual fact, it can adversely affect the condition and health of our spine, similarly to any other inappropriately performed exercise. Oscillating a bar or throwing it during bending the arms can also lead to an insufficient load transmission through the vertebrae, potentially causing injuries. The technique and precise mechanics during this exercise assure proper operation and fortify the buttocks, abdomen, and back muscles that stabilize our spine during each exercise. The apprehension of executing deadlifts is frequently linked to using a wrong technique. Properly executed deadlifts guarantee sound backs for many years.
A dead line not for beginners, but it is feasible
Many individuals believe that a dead line is too difficult for beginners. However, it is indeed a complex exercise, but not too difficult to master. The mechanics itself is based on a simple principle, and the effort is mainly focused on a single hip joint. To learn the correct movement in a dead line, one can use a very simple method: - place your hands on your thighs; - lift your chin and direct your gaze forward; - push out your chest; - after assuming this position, slide your hands down your thighs, and after crossing your knees, guide your hands outside your legs until you reach a depth that allows you to grasp the bar. The following video demonstrates this method and is a very easy and natural way to perform a dead line.
Deadlift - muscles in action
Based on the studies described in the first point, we can observe the activity of individual muscles when performing a dead pull in the classical version or sumo version. Additionally, considering the mechanics of movement, the main works are carried out around the hip and knee joints. Their movement is due to specific muscles in which the gluteal muscles play a dominant role: - hip joint: flexors - e.g. straight thigh muscle, lumbar-sacral muscle; extensors - large gluteal muscle, ischial-calf muscles; - knee joint: flexors - e.g. group ischial-calf muscles, broad muscle; extensors - e.g. calf muscle, straight thigh muscle. The following film excellently shows the entire mechanics and involvement of individual muscles in the dead pull.
Compendium of the benefits of the deadlift
The advantage of performing the deadlift is indisputable. Starting from functionality and health to muscle hypertrophy, not only those directly involved in movement. This exercise should be included in every training plan, irrespective of physical or athletic goals. It is worth mentioning that the weight used during this exercise is not the most important factor - precision, mechanics, and proper motor control are crucial. Long-term and appropriate execution of the deadlift will ensure strength and agility not only in our younger years - it is worth refining the technique of this exercise.