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 exercise and identify the relevant contraction phases, joints, and muscles involved:
1. Biceps Curl:
- Contraction Phases: The biceps curl involves two main phases: the concentric phase and the eccentric phase. The concentric phase is when the bicep muscle shortens as you lift the weight up towards your shoulder. The eccentric phase is when the muscle lengthens as you lower the weight back down.
- Joints: The primary joint involved in the biceps curl is the elbow joint, as it is responsible for flexion and extension.
- Muscles: The primary muscle involved is the biceps brachii, which is located in the upper arm. The brachialis and brachioradialis muscles also assist in the movement.
2. Seated Row:
- Contraction Phases: The seated row exercise involves two main phases: the concentric phase and the eccentric phase. The concentric phase is when you pull the weight towards your body, contracting the upper back muscles. The eccentric phase is when you return the weight to the starting position.
- Joints: The primary joints involved in the seated row are the shoulder joints and the elbow joints.
- Muscles: The primary muscles involved are the latissimus dorsi (lats) and the rhomboids, which are located in the upper back. The biceps brachii and the brachialis muscles also assist in the movement.
3. Press Up (Push-up):
- Contraction Phases: The press up exercise primarily involves the concentric phase. This is when you push your body away from the floor, contracting the muscles involved.
- Joints: The primary joints involved in the press up are the shoulder joints and the elbow joints.
- Muscles: The primary muscles involved are the pectoralis major (chest muscles), deltoids (shoulders), triceps brachii (back of arms), and the serratus anterior (chest and shoulder stabilizer).
4. Squat:
- Contraction Phases: The squat exercise involves two main phases: the concentric phase and the eccentric phase. The concentric phase is when you stand up from a squatting position, contracting the muscles. The eccentric phase is when you lower your body back down.
- Joints: The primary joints involved in the squat are the hip joints, knee joints, and ankle joints.
- Muscles: The primary muscles involved are the quadriceps (front of thighs), hamstrings (back of thighs), gluteus maximus (buttocks), and the erector spinae (back muscles). Additionally, other muscles like the calves, adductors, and core muscles also assist in stabilizing the body during the exercise.
5. Calf Raise:
- Contraction Phases: The calf raise exercise primarily involves the concentric phase. This is when you rise up on your toes, contracting the calf muscles.
- Joints: The primary joint involved in the calf raise exercise is the ankle joint.
- Muscles: The primary muscles involved are the gastrocnemius and soleus muscles, which are located in the calf region.
I hope this helps you with your assignment! Don't forget to double-check the information to ensure its accuracy. If you need further assistance, feel free to ask.