What are the risks and precautions related to specific exercises in strength training? 10.2 LEG PRESS (CORRECT POSITIONS) 10.3 DEADLIFT 10.4 PARTIA...
What are the risks and precautions related to specific exercises in strength training?
10.2 LEG PRESS (CORRECT POSITIONS)
10.3 DEADLIFT
10.4 PARTIAL MOVEMENT EXERCISES
10.5 KNEELING ELBOW FLEXION IN LOW PULLEY
10.6 SEATED EXERCISES WITHOUT BACK SUPPORT AT 75º AND 85º INCLINATION
10.7 STANDING ROW UP TO CHIN HEIGHT
10.8 SHOULDER DEVELOPMENT BY LIFTING WEIGHTS ABOVE THE HEAD
10.2 - There are doubts about the best foot position during leg press exercise. The knee joint becomes somewhat compromised when the movement is performed at certain angles of execution. The analysis of muscle strength by the 1 RM test in relation to the joint angles adopted during the leg press exercise was studied by Moura et al. (2004). This research found a significant difference in relation to the tests performed at 80º, 90º, and 100º. The recruitment of the quadriceps is better activated when the feet remain in the intermediate or low area of the device in the distant position from the greater flexion of the knees in relation to the hip. Regarding the recruitment of the rectus femoris muscle, Tassi et al. (1998) recommend performing the movement in the leg press with the feet in dorsiflexion, in the intermediate area of the device, and apart from each other.
10.3 - The execution of the deadlift shows that an incorrect technique is easy to acquire but difficult to correct. Sometimes, the incorrect technique is the result of a minor physical abnormality and, consequently, increased by the force of movements. However, performing this movement correctly has a significant relationship with the prevention and rehabilitation of the lumbar region. The analysis of the vertebral column of basic weightlifters, by means of videofluoroscopy, during the execution of the deadlift with maximum loads, showed that although the vertebral column is in total flexion in the exercise, each vertebra remains 2° to 3° from the maximum range of flexion, demonstrating accurate motor control of the stabilizers. This explains how these athletes can lift extremely high loads without causing injury (McGill, 2001).
10.4 - Partial exercises imply a lower degree of flexibility (shortening of muscle length) in relation to full exercises; consequently, the degree of strength will be greater at the joint angle that presents the greatest demand. Thus, partial exercises do not contribute to the biomechanical capacity of the body segments in relation to the desired movement (Jensen and Fisher, 1979).
10.5 - During the progressive execution of this movement, the risk of injury is observed in the shoulder region, specifically characterized by the inflammatory process that affects the bursa, i.e., bursitis. The main characteristic to detect an inflammatory process resulting from this type of exercise, being poorly prescribed or poorly performed, is the symptom of local pain (Takahashi et al., 1992).
10.6 - When we perform exercises without correct posture and back support, we may be exposed to two postural problems: herniated disc and osteophytosis (bony spur). Thus, any type of seated exercise should be performed with the support of a bench between 75º and 85º inclination.
10.7 - During the progressive execution of this movement, the risk of injury is observed in the shoulder region, specifically characterized by the inflammatory process that affects the bursa, i.e., bursitis. The main characteristic to detect an inflammatory process resulting from this type of exercise, being poorly prescribed or poorly performed, is the symptom of local pain (Takahashi et al., 1992).
10.8 - The main risk related to this exercise is the excessive rotation of the humerus head, which can cause acromion fracture, leading to shoulder dislocation. The dislocation of the shoulder occurs in the anterior, posterior, superior, and inferior directions. However, the anterior direction occurs more frequently, a fact that is related to the movement of abduction, external rotation, and extension. Most dislocations occur due to traumatic factors; thus, axillary nerve injury, rotator cuff ruptures, and vascular injury may occur (Brown et al., 2001).
a) All exercises have the same risks and precautions.
b) Partial movement exercises are the safest and most recommended.
c) Each exercise has specific risks and precautions that must be taken into account.
10.2 LEG PRESS (CORRECT POSITIONS)
10.3 DEADLIFT
10.4 PARTIAL MOVEMENT EXERCISES
10.5 KNEELING ELBOW FLEXION IN LOW PULLEY
10.6 SEATED EXERCISES WITHOUT BACK SUPPORT AT 75º AND 85º INCLINATION
10.7 STANDING ROW UP TO CHIN HEIGHT
10.8 SHOULDER DEVELOPMENT BY LIFTING WEIGHTS ABOVE THE HEAD
10.2 - There are doubts about the best foot position during leg press exercise. The knee joint becomes somewhat compromised when the movement is performed at certain angles of execution. The analysis of muscle strength by the 1 RM test in relation to the joint angles adopted during the leg press exercise was studied by Moura et al. (2004). This research found a significant difference in relation to the tests performed at 80º, 90º, and 100º. The recruitment of the quadriceps is better activated when the feet remain in the intermediate or low area of the device in the distant position from the greater flexion of the knees in relation to the hip. Regarding the recruitment of the rectus femoris muscle, Tassi et al. (1998) recommend performing the movement in the leg press with the feet in dorsiflexion, in the intermediate area of the device, and apart from each other.
10.3 - The execution of the deadlift shows that an incorrect technique is easy to acquire but difficult to correct. Sometimes, the incorrect technique is the result of a minor physical abnormality and, consequently, increased by the force of movements. However, performing this movement correctly has a significant relationship with the prevention and rehabilitation of the lumbar region. The analysis of the vertebral column of basic weightlifters, by means of videofluoroscopy, during the execution of the deadlift with maximum loads, showed that although the vertebral column is in total flexion in the exercise, each vertebra remains 2° to 3° from the maximum range of flexion, demonstrating accurate motor control of the stabilizers. This explains how these athletes can lift extremely high loads without causing injury (McGill, 2001).
10.4 - Partial exercises imply a lower degree of flexibility (shortening of muscle length) in relation to full exercises; consequently, the degree of strength will be greater at the joint angle that presents the greatest demand. Thus, partial exercises do not contribute to the biomechanical capacity of the body segments in relation to the desired movement (Jensen and Fisher, 1979).
10.5 - During the progressive execution of this movement, the risk of injury is observed in the shoulder region, specifically characterized by the inflammatory process that affects the bursa, i.e., bursitis. The main characteristic to detect an inflammatory process resulting from this type of exercise, being poorly prescribed or poorly performed, is the symptom of local pain (Takahashi et al., 1992).
10.6 - When we perform exercises without correct posture and back support, we may be exposed to two postural problems: herniated disc and osteophytosis (bony spur). Thus, any type of seated exercise should be performed with the support of a bench between 75º and 85º inclination.
10.7 - During the progressive execution of this movement, the risk of injury is observed in the shoulder region, specifically characterized by the inflammatory process that affects the bursa, i.e., bursitis. The main characteristic to detect an inflammatory process resulting from this type of exercise, being poorly prescribed or poorly performed, is the symptom of local pain (Takahashi et al., 1992).
10.8 - The main risk related to this exercise is the excessive rotation of the humerus head, which can cause acromion fracture, leading to shoulder dislocation. The dislocation of the shoulder occurs in the anterior, posterior, superior, and inferior directions. However, the anterior direction occurs more frequently, a fact that is related to the movement of abduction, external rotation, and extension. Most dislocations occur due to traumatic factors; thus, axillary nerve injury, rotator cuff ruptures, and vascular injury may occur (Brown et al., 2001).
a) All exercises have the same risks and precautions.
b) Partial movement exercises are the safest and most recommended.
c) Each exercise has specific risks and precautions that must be taken into account.
💡 1 Resposta
Ed 
c) Cada exercício tem riscos e precauções específicas que devem ser levadas em consideração. O texto apresenta informações sobre os riscos e precauções relacionados a exercícios específicos de treinamento de força, como leg press, deadlift, exercícios de movimento parcial, flexão do cotovelo em polia baixa, exercícios sentados sem suporte para as costas, remada em pé até a altura do queixo, desenvolvimento do ombro levantando pesos acima da cabeça. Cada exercício apresenta riscos e precauções específicas que devem ser considerados para evitar lesões e garantir a segurança durante o treinamento.
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