NASM Flashcards
Where is the rectus abdominis muscle? What does it do?
The ab muscles. Spinal flexion/extension, lateral flexion, and STABILIZES THE LUMBO-PELVIC-HIP (LPHC) complex
What do platelets do?
Blood clotting
What do red blood cells do?
carry oxygen
what do white blood cells do?
fight infections
Respiratory rate range (BPM) and the average resting rate
12-20; 15 is average BPM
Where is the transverse abdominis? What does it do?
Under the abs. Stabilizes the lumbo-pelvic-hip complex.
What is homeostasis?
The process by which the human body strives to maintain a relatively stable equilibrium.
What does the gluteus medius do? Where is it?
Hip abduction and internal/external rotation
also stabilizes the lumbo-pelvic-hip complex
Very top muscle of the butt
What is the brachioradialis? Where is it?
Helps flex/extend the elbow. Along the outer elbow/forearm
What is the latissimus dorsi? Where is it?
Large back muscle. Shoulder extension, flexion, abduction, adduction, and rotation.
What is the serratus anterior? Where is it?
Around rib cage. Scapular protraction (extending out) and retraction.
What are the rhamboids? Where are they? The types?
Middle back below neck. Major and minor. Retraction, protraction, and rotation off the scapula.
What is the sartorius? Where is it?
runs from the bottom of the top of the pelvis to the knee. extension, flexion and rotation of the knee. hip flextion/ext, rotation and abduction.
What is the Jackson and Pollack 3 Site protocol? Where is it used. What are the locations for men and women?
measures the thickness of skinfolds in 3 places for body fat percent estimate.
In healthy populations.
Men - chest, abdomen, thigh
Women - triceps, suprailiac, thigh
What sites are used for men and women in the Jackson and Pollack 7 site protocol?
Men and women - Chest, mid-axillary, sub scapular, triceps, abdomen, suprailiac, thigh
What is hypertrophy?
the enlargement of an organ or tissue. in the context of fitness, it is often used to describe the enlargement of skeletal muscle.
What is the 4 site Durnin-Womersley protocol? What are the sites?
Measures the thickness of skin folds at 4 different places within the body to estimate body fat percentage. The sites are biceps, triceps, sub scapular, and suprailic.
What are the 3 stages of OPT training?
Stabilization, strength and power
What are the training phases?
Stabilization end, strength end, hypertrophy, max strength, and power
What are the three parts of a neuron?
cell body, axon, dendrites
What are the three joint motions?
roll, slide, spin
What are the functions of the skeletal system?
Shape, protection, movement, blood production and store minerals
What are the layers of a muscle?
epimysium, perimysium, endomysium (deepest)
What are the types of muscle fibers? What are they also referred to as?
Type 1 - slow twitch
Type 2 - fast twitch
Slow twitch (type 1) fibers facts and why are these fibers important?
have large number of capillaries, so they deliver oxygen
they’re smaller in size
they’re slower to fatigue due to the oxygen (more resistant to fatigue)
generate lower amounts of force.
important for muscles that need to produce long-term contractions necessary for stabilization and postural control (deep musculature of the spine)
type 2 (fast twitch) fiber facts and what they are used for?
larger is size and produce maximal tension faster. Quick to fatigue bc they have lower oxygen capacity. They are important for muscles that produce movements requiring high levels of force and power, such as quads when sprinting.
What is the All-or-nothing principle?
Motor units are the amount of force they generate, they either contract maximally or not at all.
What is ATP? What does it do?
Adenosine Triphosphate, a high energy molecule that serves as the main form of energy in the human body, know as the energy currency of the body.
Types of joints
Synovial, non axial and nonsynovial.
What are synovial joints?
Joint with fluid
Most common joint in the body. Have multiple layers. Produce synovial fluid.
What are non axial joints? What do they do?
Simplest movements of all joints. Move back and forth or side to side. (Wrist).
What are nonsynovial joints?
no joint capsules, connective tissue or cartilage. little to no movement. such as the skull.
What are muscle spindles? What do they do?
Sensory receptors sensitive to change in length of the muscle and the rate of that change. When the specific muscle is stretched, the spindles within the muscle are also stretched, which in turn conveys info to the CNS about the position of various body parts.
What are Golgi tendon organs and what do they do?
A specialized sensory receptor located at the point where skeletal muscle fibers insert into the tendons of the muscle,
sensitive to change in muscular tension and rate of change. They cause the muscle to relax, which prevents stress and injury.