Chapter 13: Resistance Training Concepts Flashcards
general adaption syndrome
a term used to describe how the body responds and adapts to stress
alarm reaction
- the alarm reaction is the initial reaction to a stressor
- initial reaction to a stressor such as increased oxygen and blood supply to the necessary areas of the body
delayed-onset muscle soreness
pain or discomfort often felt 24 to 72 hours after intense exercise or unaccustomed physical activity
resistance development
- the body increases its functional capacity to adapt to the stressor
- increased functional capacity to adapt to stressor such as increased motor recruitment
exhaustion
- prolonged stress or stress that is intolerable and will produce exhaustion or distress to the system
- a prolonged or intolerable stressor produces fatigue and leads to a breakdown in the system or injury
periodization
division of a training program into smaller, progressive stages
principle of specificity or specific adaptation to imposed demands (SAID principle)
principle that states that the body will specifically adapt to the type of demand placed on it
mechanical specificity
refers to the weight and movements placed on the body
neuromuscular specificity
refers to the speed of contraction and exercise selection
metabolic specificity
refers to the energy demand placed on the body
muscular endurance
the ability to produce and maintain force production for prolonged periods of time
muscular hypertrophy
- enlargement of skeletal muscle fibers in response to overcoming force from high volumes of tension
- enlargement of skeletal muscle fibers in response to being recruited to develop increased levels of tension, as seen in resistance training
strength
the ability of the neuromuscular system to produce internal tension (in the muscles and connective tissues that pull on the bones) to overcome an external load
power
ability of the neuromuscular system to produce the greatest force in the shortest time
vertical loading
alternating body parts trained from set to set, starting from the upper extremity and moving to the lower extremity
horizontal loading
performing all sets of an exercise or body part before moving on to the next exercise or body part
tempo
speed of repetition
rest interval
amount of rest between each exercise
adaptation is a function of what?
general adaptation syndrome + principle of specificity
what is the primary goal of most exercise training programs?
some form of adaptation
what is one of the most important concepts of training and conditioning?
- the ability of the human body to respond and adapt to an exercise stimulus
- the human body’s ability to adapt or adjust its functional capacity to meet the desired needs
what is the optimal sate for the human movement system to be in?
one of physiologic balance or homeostasis
what is the stress being placed on the body during resistance training?
the weight being lifted
Hans Selye
- a Canadian physician
- general adaptation syndrome
- stated that exercise, including resistance training, can be considered a good form of stress called “eustress” that allows the human movement system to adapt and thus be able maintain homeostatic states under a variety of conditions
for adaptation to occur, what must the body be confronted with?
a stressor or some form of stress that creates the need for a response
3 stages of response to stress
- alarm reaction
- resistance development
- exhaustion
adaptive benefits of resistance training - physiologic
- improved cardiovascular efficiency
- beneficial endocrine (hormone) and serum lipid (cholesterol) adaptations
- increased bone density
- increased metabolic efficiency (metabolism)
adaptive benefits of resistance training - physical
- increased tissue (muscle, tendons, ligaments) tensile strength
- increased cross-sectional area of muscle fibers
- decreased body fat
adaptive benefits of resistance training - performance
- increased neuromuscular control (coordination)
- increased endurance
- increased strength
- increased power
during the initial sessions of resistance training programs, what is the body forced to try and adapt to?
increased amounts of force on bones, joints, muscles, connective tissues, and the nervous system
physiologic responses during the alarm stage of resistance training
- increase in blood oxygen and blood supply
- increase in neural recruitment to the working muscles
true or false: initially, an individual’s body may be very inefficient at responding to the demands placed on it during resistance training
TRUE
gradually over time and by applying the principle of ____, the body increases its ability’s to meet the demands being placed on it
progressive overload
how to minimize DOMS
starting a progressive training program at a low intensity and introducing overload gradually
true or false: during this period of DOMS, any attempt at replicating or advancing the soreness-inducing exercise will be limited by the factors contributing to the soreness
TRUE
true or false: DOMS can be considered an “alarm reaction”
TRUE
after repeated training sessions, what will the human movement system increase its capability to do?
efficiently recruit muscle fibers and distribute oxygen and blood to the proper areas in the body
once adaptation has occurred, what will the body require to produce a new response and a higher level of fitness?
increased stress or overload
how to personal trainers often use the adaptation response improperly?
by only manipulating the amount of weight the client uses when, in fact, this is but one of many ways to increase stress on the body
when a stressor is too much for any one of the physiologic systems to handle, it causes a breakdown or injury such as:
-stress fractures
-muscle strains
-joint pain
-emotional fatigue
(in turn, many of these types of injuries can lead to the initiation of the cumulative injury cycle)
what is one of the main reasons for using the OPT model?
- avoiding the pitfalls of the exhaustion stage
- it is a systematic, progressive training program that is based on science and proven application
true or false: resistance training must be cycled through different stages hat increase stress placed on the human movement system, but also allow for sufficient rest and recuperation periods
TRUE
if resistance is continually increased with the intention of stressing specific muscles or muscle groups to produce an increase in size or strength, what can this lead to?
injury of the muscle joint, or connective tissue, especially if the resistance is added to quickly or inadequate rest and recovery periods are not planned for
do training-related injuries occur more to connective tissue (such as ligaments and tendons) or muscles? why?
connective tissues, because they lack blood supply
true or false: all the tissues in the body have the same adaptive potential to stresses
FALSE
-different tissues in the body (muscle fibers vs. connective tissue) each have their own adaptive potential to stress
what should training programs provide to optimize the adaptation of tissue to ensure the best possible results?
a variety of intensities and stresses
what is the basis of the principle of specificity?
adaptation can be more specifically applied to certain aspects of the human movement system depending on training technique(s) used
who does overtraining syndrome commonly occur in?
athletes or fitness enthusiasts who are training beyond the body’s ability to recover
side effects of overtraining syndrome
- decreased performance
- fatigue
- altered hormonal states
- poor sleeping patterns
- reproductive disorders
- decreased immunity
- loss of appetite
- mood disturbances
if someone repeatedly lifts heavy weights, that person will produce higher levels of _____
maximal strength
if a person repeatedly lifts lighter weights for many repetitions, that person will develop higher levels of ________
muscular endurance
according to the principle of specificity, what should training programs reflect?
the desired outcome(s)
when applying the SAID principle to any training program, what is it important to remember?
that the body is made up of many types of tissues, and these tissues may respond differently to the same stimulus
type I muscle fibers
- slow-twitch
- smaller in diameter
- slower to produce maximal tension
- more resistant to fatigue
type II muscle fibers
- fast-twitch
- larger in size
- quick to produce maximal tension
- fatigue more quickly
what are type I fibers important for?
for muscles that need to produce long-term contractions necessary for stabilization, endurance, and postural control
what are type II fibers important for?
for muscles producing movements requiring force and power such as performing a sprint
what is the specific purpose behind periodization and the OPT model?
- to train with higher intensities, proper postural stabilization is required
- therefore, tissues need to be trained differently to prepare them for higher levels of training
the degree of adaptation that occurs during training is directly related to what?
the mechanical, neuromuscular, and metabolic specificity of the training program
true or false: the body can only adapt if it has a reason to adapt
TRUE
mechanical specificity examples
- to develop muscular endurance of the legs requires light weights and high repetitions when performing leg-related exercises
- to develop maximal strength in the chest, heavy weights must be used during chest-related exercises
neuromuscular specificity examples
- to develop higher levels of stability while pushing, chest exercises will need to be performed with controlled, unstable exercises, at slower speeds
- to develop higher levels of strength, exercises should be performed in more stable environments with heavier loads to place more of an emphasis on the prime movers
- to develop higher levels of power, low-weight, high-velocity contractions must be performed in a plyometric manner
metabolic specificity examples
- to develop endurance, training will require prolonged bouts of exercise, with minimal rest periods between sets (endurance training primarily uses aerobic pathways to supply energy for the body)
- to develop maximal strength or power, training will require longer rest periods, so the intensity of each bout of exercise remains high (energy will be supplied primarily via anaerobic pathways)
concept of specificity for a client whose goal is body fat reduction
- mechanically, the body burns more calories when movements are performed while standing and using moderate weights
- from a neuromuscular standpoint, the body burns more calories when more muscles are being used for longer periods in controlled, unstable environments
- metabolically, the body burns more calories when rest periods are short to minimize full recuperation
a well-designed, integrated training program produces optimal levels of:
- flexibility
- endurance
- neuromuscular control
- alterations in body composition
- strength
- power
to achieve optimal training results, what must the body adapt to?
specifically imposed demands and stresses
what is the ability to adapt to stress known as?
the general adaptation syndrome
3 stages of response to stress
- alarm reaction (or initial activation of protective processes within the body)
- resistance development (or an increase in the functional capacity to adapt to a stressor)
- exhaustion (or stress that is too much for the system and causes an injury)
resistance training programs are designed to produce changes that result in what?
various adaptations
main adaptations that occur from resistance training
- stabilization
- muscular endurance
- hypertrophy
- strength
- power
stabilization
- the human movement system’s ability to provide optimal dynamic joint support to maintain correct posture during all movements
- getting the right muscles to fire, with the right amount of force, in the proper plane of motion, at the right time
what does stabilization require?
high levels of muscular endurance for optimal recruitment of prime movers to increase concentric force production and reduce eccentric force
how to increase the body’s ability to stabilize and balance itself
repeatedly training with controlled, unstable exercises
what happens if training is not performed with controlled unstable exercises?
clients will not gain the same level of stability and may even worsen
true or false: improper stabilization can negatively affect a muscle’s force production
TRUE
why is stability an important training adaptation?
it increases the ability of the kinetic chain to stabilize the LPHC and joints during movement to allow the arms and legs to work more efficiently
developing muscular endurance helps to increase what?
core and joint stabilization, which is the foundation on which hypertrophy, strength, and power are built
training for muscular endurance of the core focuses on what?
the recruitment of muscles responsible for postural stability, namely, type I muscle fibers
what is the most effective way to improve muscular endurance?
-training protocols using high repetitions
what kind of program can enhance local muscular endurance?
a periodization training program
true or false: after an initial training effect in previously untrained individuals, single-set training may prove superior to multiple sets of periodized training for improving muscular endurance
FALSE
-multiple sets of periodized training may prove superior to single-set training for improving muscular endurance
what is muscle hypertrophy characterized by?
an increase in the cross-sectional area of individual muscle fibers resulting from an increase in myofibril proteins (myofilaments)