Ch 7 Designing a Complete Fitness Program: Principles, Prescription, and Lifespan Considerations

A comprehensive set of vocabulary flashcards covering the core principles of fitness program design, the six-stage architecture, goal-setting hierarchies, FIT exercise prescriptions, and lifespan programming considerations.

Tendon

Fibrous connective tissue bands that anchor skeletal muscle to bone, transmitting mechanical force to generate joint motion.

Muscle Fiber

A single, elongated cylindrical multinucleated cell containing myofibrils that contracts when stimulated by a somatic motor neuron.

Myofibrils

Microscopic, thread-like contractile structures running longitudinally through muscle cells, composed of repeating sarcomeres containing actin and myosin filaments.

Nucleus

A cellular organelle housing genetic material ($\text{DNA}$) that regulates gene expression, protein synthesis, and cellular repair within skeletal muscle.

Satellite Cells

Quiescent stem cells located along the periphery of muscle fibers that activate, proliferate, and donate nuclei to assist in regeneration and repair.

Hypertrophy

An increase in the total cross-sectional area and size of preexisting skeletal muscle fibers resulting from net positive protein synthesis.

Hyperplasia

An increase in the total number of distinct muscle fibers within a tissue, rather than the enlargement of preexisting fibers.

Atrophy

The structural wasting, shrinking, and loss of skeletal muscle tissue mass caused by disuse, denervation, immobilization, or severe malnutrition.

Slow-Twitch Muscle Fibers

Type I muscle fibers characterized by high mitochondrial density, high capillary content, slow contractile speeds, and superior resistance to fatigue during sustained aerobic workloads.

Fast-Twitch Muscle Fibers

Type II muscle fibers capable of generating rapid, high-force contractions through glycolytic metabolism, but subject to rapid fatigue.

Power

The rate at which physical work is performed, mathematically represented as force multiplied by velocity ($P = F \times v$).

Motor Unit

A single alpha motor neuron and all of the specific muscle fibers that its axonal branches innervate and stimulate.

Axon

A long, slender projection of a nerve cell that conducts electrical impulses away from the neuronal soma toward target neuromuscular junctions.

Myelin

A lipid-rich insulating sheath surrounding nerve axons that accelerates the transmission speed of action potentials via saltatory conduction.

Muscle Learning

Neuromuscular motor pattern adaptations that enhance recruitment, rate coding, and synchronization of motor units prior to measurable morphological changes.

Testosterone

A primary endogenous androgenic-anabolic steroid hormone that promotes muscle protein synthesis, bone density maintenance, and erythropoiesis.

Purposeful Strength Training

A structured, goal-directed resistance exercise program systematically designed to improve force-generating capacity, functional performance, and musculoskeletal health.

Repetition Maximum (1 RM)

The maximum amount of external weight that can be lifted through a full range of motion with sound technique for exactly $1$ complete repetition.

Repetitions

The number of consecutive, uninterrupted executions of a specific exercise movement within a single bout of training.

Isometric (Static) Exercise

A muscular action in which internal tension is developed against an immovable resistance without producing joint movement or altering overall muscle length.

Core Muscles

The complex network of trunk and lumbo-pelvic musculature that stabilizes the spine, pelvis, and kinetic chain during dynamic movements.

Ligament

A dense band of fibrous connective tissue linking bone to bone across a joint to stabilize articulating surfaces and prevent abnormal translation.

Cartilage

A firm, resilient, avascular connective tissue that lines articulating bone surfaces to reduce friction and absorb mechanical compressive forces.

Isotonic (Dynamic) Exercise

A resistance training modality involving muscle actions that move an external load through a designated range of motion, featuring concentric shortening and eccentric lengthening.

Concentric Muscle Contraction

A dynamic phase of muscle action wherein contractile tension exceeds external resistance, resulting in muscle shortening.

Eccentric Muscle Contraction

A dynamic muscle action wherein external resistance exceeds internal tension, causing the muscle to lengthen while under tension.

Constant Resistance Exercise

A dynamic strength training modality where the absolute external load remains fixed throughout the movement, such as lifting standard free weights.

Variable Resistance Exercise

A resistance training method utilizing specialized cams, levers, or elastic bands that alter mechanical resistance to match the joint's natural musculoskeletal leverage changes.

Eccentric Loading

A resistance training method emphasizing the lengthening phase of an exercise under supra-maximal or slow, controlled tempos to maximize mechanical tension and structural adaptation.

Plyometrics

An explosive conditioning system utilizing the stretch-shortening cycle to rapidly transition from an eccentric deceleration phase to an immediate concentric acceleration phase.

Speed Loading

An exercise technique where an external resistance is moved as rapidly and explosively as possible to enhance rate of force development and power output.

Kettlebell

A cast-iron or steel ball-shaped weight with a top handle, commonly utilized for ballistic, swinging, and multi-planar momentum-based strength training.

Isokinetic Exercise

A muscular action performed on specialized dynamometers that maintain a constant angular velocity of joint movement regardless of user force output.

Spotter

A designated training partner who assists during free-weight exercises to safeguard proper technique, assist with lift completion, and prevent injury.

Blood Flow Restriction Training

A training protocol that applies an external pneumatic cuff to proximal limbs to restrict venous return during low-intensity lifting ($20 - 30\%$ of $1\,\text{RM}$).

Set

A discrete group of consecutive repetitions executed continuously without intermittent rest.

Hinge

A fundamental movement pattern characterized by primary flexion and extension at the acetabulofemoral joints with minimal knee flexion and a neutral spine.

Rhabdomyolysis

A clinical condition marked by rapid necrosis of skeletal muscle tissue, which spills myoglobin and intracellular enzymes into systemic circulation, potentially damaging the kidneys.

Ergogenic Aids

Substances, nutritional techniques, or specialized equipment implemented to augment athletic performance, energy utilization, or physical recovery.

Arrhythmia

Any disturbance or irregularity in the normal rhythm, rate, or sequence of cardiac electrical conduction.

Glucose Intolerance

A metabolic state characterized by elevated postprandial blood sugar concentrations resulting from impaired physiological insulin sensitivity or inadequate insulin secretion.

Caffeine

A central nervous system stimulant and adenosine receptor antagonist that attenuates perceived exertion and enhances endurance and neuromuscular alertness.

Range of Motion

The complete angular or linear distance traversed by a joint throughout its structural planes of movement.

Joint Capsules

Fibrous sac-like envelopes that enclose synovial joint cavities, retain synovial fluid, and provide structural integrity to articulating bones.

Arthritis

An acute or chronic inflammation of one or more joints, resulting in articular pain, stiffness, swelling, and reduced functional mobility.

Soft Tissues

Non-mineralized anatomical tissues—including muscles, tendons, ligaments, fascia, adipose tissue, and synovial membranes—that connect and support bodily structures.

Collagen

The most abundant structural fibrous protein in connective tissues, providing high tensile strength and structural resistance to mechanical elongation.

Elastin

An extracellular matrix structural protein that imparts elasticity, flexibility, and recoil capabilities to tissues such as arteries, skin, and ligaments.

Elastic Elongation

Temporary, reversible lengthening of connective tissues during tensile loading, recovering to baseline resting dimensions upon load release.

Plastic Elongation

Permanent morphological lengthening of connective tissues resulting from consistent, prolonged tensile loading past the elastic limit.

Proprioceptor

A specialized sensory receptor, such as a muscle spindle or Golgi tendon organ, that monitors muscular tension, position, and spatial orientation.

Antagonist Muscle

A muscle that provides an opposing anatomical action to the prime mover, relaxing or lengthening to enable fluid joint action.

Osteoporosis

A systemic skeletal disease characterized by low bone mineral density and architectural deterioration of bone tissue, increasing fracture susceptibility.

Static Stretching

A flexibility technique in which a muscle or tendon is slowly taken to its end-range tension and held stationary for $10 - 30\,\text{seconds}$.

Ballistic Stretching

A dynamic stretching approach involving repetitive, jerky bouncing movements that trigger the stretch reflex and increase strain injury risk.

Dynamic Stretching

A functional flexibility method utilizing controlled, momentum-free movements that gently move joints through their full functional range of motion.

Passive Stretching

A technique in which an external force, such as gravity, a partner, or an elastic band, creates the mechanical force to stretch the target muscle.

Active Stretching

A flexibility method where tension generated by contracting the agonist muscle group stretches the opposing antagonist group through reciprocal inhibition.

Vertebrae

The $33$ individual bony segments that articulate to form the spinal column, protect the spinal cord, and support upright posture.

Intervertebral Disk

A fibrocartilaginous structure positioned between adjacent spinal bones composed of an outer annulus fibrosus and a hydrated inner nucleus pulposus.

Nerve Roots

The initial segments of spinal nerves emerging directly from the spinal cord through the intervertebral foramina.

Metabolic Syndrome

A constellation of interrelated metabolic risk factors—including abdominal obesity, hypertension, hypertriglyceridemia, low $\text{HDL}$, and insulin resistance—that heighten cardiovascular risk.

Insulin Resistance

A condition in which target tissues such as skeletal muscle and the liver exhibit diminished responsiveness to insulin, leading to impaired cellular glucose uptake.

Chronic Inflammation

A prolonged, non-resolving systemic immune response involving persistent cytokine production that contributes to tissue degradation and vascular disease.

Fatty Liver

The pathological accumulation of excessive triglycerides within hepatocytes, often linked with obesity, insulin resistance, and metabolic disorders.

Amenorrhea

The abnormal cessation or absence of regular menstrual periods for $3$ or more consecutive cycles, commonly tied to energy deficiency in female athletes.

Body Mass Index (BMI)

A screening metric calculated as body mass in kilograms divided by the square of body height in meters ($\text{kg}/\text{m}^2$).

Female Athlete Triad

A clinical condition involving three interrelated components: low energy availability, menstrual dysfunction, and diminished bone mineral density.

Caliper

A mechanical instrument used to measure subcutaneous skinfold thickness across designated anatomical sites to estimate body fat percentage.

Interval Training

A training protocol that alternates repeated bouts of high-intensity exercise with periods of lower-intensity activity or passive rest.

Arc Trainer

A stationary non-impact cardiovascular machine that utilizes a patented arcuate foot motion to engage lower body musculature with minimal patellofemoral loading.

Elliptical Trainer

A stationary cardiovascular fitness machine providing a continuous, closed-kinetic-chain oval foot path that reduces joint impact during simulated running or walking.