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Plan for Week 7 (Oct 5 & 7)

This detailed plan outlines effective methods for selecting resistive exercise equipment based on scientific principles and relevant criteria. It covers a range of devices, including stationary bicycles, rowers, and various weight machines, providing advantages and disadvantages for each type. The guide emphasizes the importance of considering factors such as safety, versatility, motivation-enhancing features, and scientific evidence supporting manufacturers' claims. It offers practical tips for evaluating equipment, consulting experts, and using product reviews to inform decisions. The comprehensive list of questions and considerations can help individuals make informed choices tailored to their specific needs and goals.

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Plan for Week 7 (Oct 5 & 7)

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  1. Plan for Week 7 (Oct 5 & 7) • Tuesday • Review exam • Review powerpoint on resistive exercise equipment • Thursday • Visit rec center • Derek Walters, Associate Director

  2. Cost of Aerobic Exercise Equipment at Rec Complex • Stationary Bicycles • Uprights $1436-$2471 • Recumbents $1798-$3634 • Treadmills $4695-$7995 • Rowers $680 • Stepping machines $1779-$3199 • Elliptical $2850-$4000 • Cybex Arc Trainer ($4600.00) LifeFitness • CrossTrainer ($3995.00) SciFit Total Body

  3. Methods for Resistive Equipment Selection • Apply relevant scientific principles to evaluate claims • Biomechanical • Physiological • Psychological • Use it yourself at conferences or health clubs • Product reviews in fitness magazines (Club Industry, Athletic Business, Fitness Management) • Try it yourself and take a tall or short person with you • Consult with experts who supervise its use, or other professionals (e.g., professors in area of expertise) • Look at research available, if any • Evaluate quality of research • Who sponsored research? • Peer-reviewed presentation?

  4. Relevant Questions for Resistive Equipment Selection (Criteria) • Can you apply specificity principles appropriately? • Type of contraction, movement pattern, speed • Carryover to living in gravitational environment? • Is resistance enough to accomodate your strength? • Does it fit different sized people? • Is it safe? • Is it uncomplicated to use (user friendly) • Is there scientific evidence to support manufacturer’s claims? • Does the equipment follow a normal neuromuscular pattern? • If variable resistance, does resistance follow normal strength-position curve? • Does it have motivation-enhancing features?

  5. Resistive Exercise Equipment • Simple and handy devices (plastic bottles, rubber tubing, springs) • adv - cheap, convenient • disadv - no versatility in direction, force, speed • Constant resistance training devices (free wts, body wt) • adv – convenient to use, cheap, balance needed, portable, motivation • disadv - safety, inconvenient to change wts, no versatility indirection, speed • Gravity-dependent resistance machines (circular pulleys) • adv - safety, convenient to change wts, versatility in force direction, motivation • disadv - cost, balance not required

  6. Gravity-dependent Resistance Wt Machine Concentric and eccentric contraction of agonists only!

  7. Resistive Equipment (cont’d) • Variable resistance wt machine (CAMS or roller on bar) • adv - variable resistance as well as direction of force app, motivation • disadv - cost, no versatility in speed • Isokinetic devices (same speed) • Adv - speed specific, vary force during movement (great for rehab) • Disadv - motivation, cost • Computer-assisted devices (can control either speed or resistance) • adv - variable resistance & speed, motivation, permanent record • disadv - cost

  8. Variable Resistance Weight Machine Concentric and eccentric contraction of agonists only!

  9. ComputerizedExercise Machine Agonists and antagonists Concentric contraction only!

  10. Pneumatic Resistance(air, two-way) Agonists and antagonists Concentric contraction only!

  11. Isokinetic (accomodating) Resistance (one-way) Agonists concentric contraction only!

  12. Hydraulic Resistance Agonists and antagonists Concentric contraction only!

  13. Elastic Resistance Agonists only, concentric & eccentric contraction Bowflex: Soloflex:

  14. Exercise Equipment of Questionable Value • Devices to vibrate, melt, or massage away fat • Stretching, pulling, or pushing devices • Wearing or carrying weights • Rebounders or minitrampolines - Exerlopers • Exerlopers Fitness Systems - Home Page • Healthrider: • Fitness Equipment: Index • Gazelle, or healthstrider: • Fitnessquest home page • Electrical stimulation • Electrical Muscle Stimulator

  15. Websites for Abdominal Exercise Equipment • Ace Home Page

  16. Abdominal Muscle Review

  17. Situp Exercises: Which methods are Potentially harmful? In what way?

  18. Costs of Resistive Equipment at Rec Center • Free weights • Benches $660; dumbbell set $1,300; Rack for dumbbells $585; Olumpic weight set $1,650 • Plate loaded weight machines - $1,500-$1,700 • VRI station (variable resistance one axis) - $1,700-$3,900 • VRII station (variable resistance, 2 axes) - $2,300-$4,000 • Isokinetic (accomodating resistance) - $10,000 • Computer-controlled - $20,000

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