resistance exercise Flashcards
key elements x3
strength, power, endurance
resistance exercise
activity in which muscle contraction is resisted by & outside force
functional strength
ability of NM system to produce the appropriate amount of force to accomplish functional tasks smoothly
strength training
space using muscle force to raise, lower, or control heavy load over a short period of time
power training
ballistic movements involving strength + and speed
muscle endurance
the ability of a muscle to contract repeatedly against an external load & resist fatigue over time
endurance training
using muscle force over an extended period of time
overload principle
resistance > metabolic capacity to improve muscle performance
SAID principle
- task-specific training = practice of actual task
reversibility principle
adaptive changes in response to a resistance exercise program are transient
- if you don’t use it, you lose it
- reg. exercising to keep mm
- detraining = 1-2 weeks
type I mm fibers
slow twitch
high resistance to fatigue (postural mm)
type II mm fibers
fast twitch
low resistance to fatigue
hypertrophy
increase in size of mm fibers
- 4 to 8 weeks
hyperplasia
increase # of mm fibers
external stabilization
therapist/equipment
- pta holds hip down
internal stabilization
contraction of adjacent mm group
- within the pts
isometric exercise : used to decrease pain/spasms & promote relaxation/circulation @ ACUTE stage
muscle setting
isometric exercise : submax but sustained contraction against reistance in antigravity of WB positions
stabilization
Isometric exercise : resistance applied @ multiple jt positions, used when goal is to improve strength throughout ROM when dynamic RT is painful/not allowed
multiple angle
manual resistant
therapist or self-regulated
mechanical resistance
equipment/machine
isometric exercise
static mm contraction w/o visible jt movement
concentric
shortened mm
eccentric
lengthened mm
variable resistance
bands, different levels
constant resistance
weights, same level
isokinetic exercise
predetermined, constant velocity (same speed)
open kinetic chain
the terminal segment is free to move in an unrestricted manner
closed kinetic chain
the terminal segment is restrained
Capacity of muscle to do work (force x distance)
muscle performance
Extent that the contractile elements of muscle produce force
strength
strength + speed
power
Ability to perform activities over prolonged period of time
- cardiopulmonary
- muscle
endurance
contraindications x4
severe jt/mm pain during active movement w no load
acute inflammation
severe cardiopulmonary disease
inflammatory NM/mm disease
- polymyositis
- dermatomyositis
- guillain-barre: temp problem