i really need help for an assignment. it askes to name the contraction phases, joints and muscles involved in the following exercises: biceps curl, seated row, press up, squat and calf raise. iv been searching everywehere. ne extra help would be great
Sure! I'd be happy to help you with your assignment. Let's go through each of the exercises you mentioned and identify the contraction phases, joints, and muscles involved.
1. Biceps Curl:
- Contraction Phases: There are two main phases - the concentric phase and the eccentric phase. The concentric phase is when you are lifting the weight, and your biceps are contracting. The eccentric phase is when you are lowering the weight and your biceps are elongating.
- Joints: The primary joint involved in a biceps curl is the elbow joint.
- Muscles: The main muscle targeted in a biceps curl is the biceps brachii, which is located in the upper arm. Additionally, the brachialis, another muscle in the upper arm, and the brachioradialis, a muscle in the forearm, are also involved.
2. Seated Row:
- Contraction Phases: Similar to the biceps curl, there are two phases - the concentric phase and the eccentric phase. The concentric phase is when you are pulling the weight towards your torso, engaging your back muscles. The eccentric phase is when you are extending your arms and returning to the starting position.
- Joints: The main joints involved in a seated row exercise are the shoulder joints and the elbow joints.
- Muscles: The primary muscles targeted in a seated row are the latissimus dorsi (located in the back), the rhomboids (located between the shoulder blades), and the rear deltoids (located at the back of the shoulders).
3. Press Up (also known as a push-up):
- Contraction Phases: The push-up exercise primarily involves one phase, the concentric phase. This is when you are pushing your body up from the ground.
- Joints: The joints involved in a push-up are the shoulder joints and the elbow joints.
- Muscles: The main muscles targeted in a push-up are the pectoralis major and minor (chest muscles), anterior deltoids (front of shoulders), triceps brachii (back of upper arms), and the core muscles (including the rectus abdominis and the transversus abdominis).
4. Squat:
- Contraction Phases: Similar to the biceps curl, there are two phases - the concentric phase and the eccentric phase. The concentric phase is when you are standing up from a squatting position. The eccentric phase is when you are lowering yourself down into a squat.
- Joints: The primary joint involved in a squat is the hip joint.
- Muscles: The main muscles targeted in a squat are the quadriceps (front of thighs), hamstrings (back of thighs), gluteus maximus (buttocks), and the calf muscles (gastrocnemius and soleus).
5. Calf Raise:
- Contraction Phases: There are two phases - the concentric phase and the eccentric phase. The concentric phase is when you are raising your body up onto your toes. The eccentric phase is when you are slowly lowering your body back down.
- Joints: The main joint involved in a calf raise is the ankle joint.
- Muscles: The primary muscles targeted in a calf raise are the gastrocnemius and soleus muscles, which are located in the calf area.
I hope this overview helps you with your assignment! Remember to further research and consult reliable sources for more detailed information on each exercise.