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
I can definitely help you with that! Let's break it down exercise by exercise:
1. Biceps Curl:
- Contraction Phase: The concentric contraction phase where the biceps muscle shortens to lift the weight and flex the elbow.
- Joints Involved: Elbow joint, and to a lesser extent, the shoulder joint.
- Muscles Involved: Primary muscle is the biceps brachii, along with assistance from the brachialis and brachioradialis.
2. Seated Row:
- Contraction Phase: The concentric contraction phase where the muscles of the upper back (such as the rhomboids and trapezius) contract to pull the weight towards the chest.
- Joints Involved: Shoulder joint and elbow joint.
- Muscles Involved: Primary muscles include the rhomboids, trapezius, latissimus dorsi, and posterior deltoids.
3. Press Up (also known as Push-Up):
- Contraction Phase: The concentric contraction phase where the muscles of the chest and arms contract to push the body away from the ground.
- Joints Involved: Shoulder joint, elbow joint, and wrist joint.
- Muscles Involved: Primary muscles include the pectoralis major (chest), anterior deltoids (shoulders), and triceps brachii (back of the arms).
4. Squat:
- Contraction Phase: The concentric contraction phase where the muscles of the legs contract to lift the body from a squatting position to a standing position.
- Joints Involved: Hip joint, knee joint, and ankle joint.
- Muscles Involved: Primary muscles include the quadriceps (front of thighs), hamstrings (back of thighs), gluteus maximus (buttocks), and calf muscles (gastrocnemius and soleus).
5. Calf Raise:
- Contraction Phase: The concentric contraction phase where the calf muscles contract to raise the heels off the ground.
- Joints Involved: Ankle joint.
- Muscles Involved: Primary muscles include the gastrocnemius and soleus muscles (calf muscles).
Whenever you are looking for information on exercises and their muscle involvement, it can be helpful to search for exercise anatomy diagrams or exercise descriptions provided by reputable sources, such as fitness websites, exercise physiology textbooks, or certified personal trainers.
Remember, these are general guidelines, and the exact muscles and joints involved can vary slightly based on individual differences and exercise variations.