Different types of muscle contractions: Isometric- muscle contraction without a change in the length of muscle Concentric- Muscle applies force as it shortens (lifting) Eccentric- Muscle applies force as it lengthens (lowering) Difference between type 1 and type 2 muscle fibers * Slow-twitch fibers * Type-I fibers * Fatigue resistant * Contract slowly and with relatively little force * Rely primarily on oxidative energy system * Fast-twitch fibers
Premium Muscle Muscle contraction Myosin
AGONIST- Prime mover‚ the muscle responsible for producing a particular joint movement. It is responsible for the movement you see. EX- Pectoralis Major in bench press. ANTAGONIST- Opposing muscle to the prime mover that passively elongates or shortens to permit motion to occur. EX- Hamstring in leg extension SYNERGIST- Any muscle assisting the prime mover. EX- Deltoids assist the pectoralis major in bench press MEDIAL- Closer to the midline. LATERAL- Further from the midline.
Premium Muscle Muscle contraction Muscular system
8. Isotonic contraction (“same tone” or tension) - In isotonic contractions‚ myofilaments are successful in their sliding movements‚ the muscle shortens‚ and movement occurs. Contractions in which the muscles do not shorten are called isometric contractions (“same measurement” or length). In isometric contractions‚ the myosin mysofilaments are “skidding their wheels‚” and the twnaion in the muscle keeps increasing. 9. Muscle tone is a state of continuous partial contractions. Muscle tone is the
Premium
ankles‚ feet‚ wrists‚ and the fingers. They are cube shaped‚ very light and strong. The flat bones are strong‚ flat plated‚ and provide protection for all the major organs‚ such as the brain‚ heart and the lungs. They can also provide attachment for muscles. Irregular bones are bones that don’t fit into any category‚ they help to support and protect joints‚ and an example of this would be the vertebrae. And finally‚ the sesamoid bones‚ they are usually short or irregular bones that are placed / imbedded
Premium Blood Muscle Heart
techniques used by athletes in all types of sports to increase strength and explosiveness. Plyometrics consists of a rapid stretching of a muscle (eccentric action) immediately followed by a concentric or shortening action of the same muscle and connective tissue. The stored elastic energy within the muscle is used to produce more force than can be provided by a concentric action. Researchers have shown that plyometric training‚ when used with a periodized strength-training program‚ can contribute to
Premium Muscle
Yoga → Sanskrit word “yuj” : to yoke‚ unite‚ join Refers to union of the individual self with the universal self. Union of the mind‚ body‚ spirit. → Philosophical or mystical system found in India; some dates the beginning of yoga back to Shamanism from 25‚000 BCE‚ pre-dating written history. → 4 main yoga systems: Jnana Yoga: Path of wisdom. Explores the human mind through self-study and pursuit of knowledge‚ and to inquire into one’s own nature. (EX: Who am I?) Bhakti Yoga: Path of devotion
Premium Yoga Meditation Muscle contraction
CARDIAC SMOOTH Elongated Branching Spindle-shpaed Multiple Peripheral N Single Central Single Central Nucleus Visible Visible Wala Striations Voluntary Involuntary Involuntary Hierarchy Bone → Tendon → Skeletal Muscle → Epimysium → Perimysium → Packs of Muscle Fibers → Endomysium → Muscle fibers → Sarcolemma → Myofibrils → Sarcomere → Actin & Mysoin myofilament ARRANGMENT OF MYOFILAMENTS A Bands Dark areas‚ w/ thick filaments I Bands Light area‚ w/ thin filaments Z Line Within the I band H Zone
Premium Muscle
to enhance performance in non-endurance activities to promote strength‚ speed and power and also to strengthen muscles in a shorter amount of time. Anaerobic training triggers two main energy systems: the high energy phosphate systems‚ (adenine triphosphate (ATP) and creatine phosphate (CP)) and the anaerobic glycolysis system. High energy phosphates are used in small doses within muscle cells and the anaerobic glycolysis system is used in the absence of oxygen inside the cells or when ATP is needed
Premium Muscle Heart rate Exercise
squats are one of the best exercises to strengthen the lower-body while also strengthening the postural muscles holding that barbell up while squatting up and down in a straight line. This reason alone should be sufficient in putting this as the number one exercise on this list‚ but for arguments sake‚ another reason is because squats directly strengthen the lower-body and the trunk’s core muscles which limit the risk of injury when performing other exercises or participating in sports such as basketball
Premium Knee Flexion Extension
approach steps usually consist of three steps. These steps are the jab step‚ the drive step‚ and the foot that is placed laterally of the football. The lower leg muscles play a huge role in kicking a field goal. It is recommended that the athlete has strong quadricep muscles. The psoas major‚ erector spinae‚ abdominals‚ and the spinal postural muscles are usually stable. The body has two hip bones. However‚ the psoas major‚ psoas minor‚ adductor longus‚ adductor brevis‚ iliacus‚ and the rectus femoris helps
Premium