Importance of Resistance Training and Chronic Diseases

  • Chronic diseases become increasingly significant with aging.

    • Aging is associated with a higher likelihood of developing diseases and conditions due to prolonged exposure over time.

Frequency and Structure of Resistance Training

  • Focus on general muscular fitness rather than hypertrophy for untrained or recreationally trained individuals.

  • Recommendation for resistance training:

    • Major muscle groups should be trained 2 to 3 days a week.

    • Maintain at least 48 hours between training the same muscle group.

  • Major muscle groups as per ACCM:

    • Chest, shoulders, upper back, lower back, abdomen, hips, legs.

  • Options for training:

    • Full-body sessions

    • Splitting workouts over multiple days

    • Avoiding training the same muscle group on consecutive days.

Repetitions and Resistance Training

  • Reps to failure relationship chart aids in exercise prescription and understanding strength levels.

  • General rep recommendations based on 1RM (one-repetition maximum):

    • Approx. 10 reps at 75% of 1RM.

    • Approx. 5 reps at 87% of 1RM.

  • Tracking progress:

    • If a person moves from 6 reps to 10 reps at a specific weight, one can assess strength increases.

Types of Resistance Exercise

  • Multi-joint (compound) exercises:

    • Involve multiple muscle groups (e.g., chest press, rows, push-ups, squats).

  • Single joint exercises:

    • Target individual muscle groups (e.g., bicep curls, tricep extensions).

  • Emphasis on avoiding muscle imbalances to mitigate injury risks and enhance activities of daily living (ADL).

  • Core stability exercises:

    • Important for enhancing strength and preventing injuries (e.g., planks, bridges).

Overall Volume of Resistance Training

  • ACSM Recommendations:

    • 2 to 4 sets per muscle group.

    • Varies through different exercises for efficient training.

  • Encouragement to vary exercises to potentially activate different muscle fibers, prevent mental boredom, and ensure higher adherence.

    • Realistic approaches: 2 sets can be more beneficial than none.

Resistance Training Intensity and Volume

  • Inverse relation between intensity and reps:

    • Higher weights lead to fewer reps.

  • Recommendations for increasing strength/lean mass:

    • Maintain resistance in the 60-80% of 1RM range.

    • 8 to 12 repetitions per set as a general guideline.

  • Calls for sets to be performed to fatigue but not failure to reduce injury risk and muscle soreness.

  • Lower intensity for elderly or deconditioned individuals:

    • RPE (Rate of Perceived Exertion) of 5-6, 10-15 reps at 40-50% of 1RM.

Special Considerations for Elderly or Deconditioned Individuals

  • Caution in loading due to comorbidities (e.g., osteoporosis).

  • Focus on maintaining proper technique during resistance training sessions to avoid injuries and ensure adaptations.

Keys to Proper Technique in Resistance Training

  • Importance of teaching individuals proper movements:

    • Start with lighter weights or bodyweight to build confidence.

  • Emphasis on exhaling during the lifting phase to avoid the Valsalva maneuver, which can increase blood pressure risks.

  • Full range of motion and controlled movements are critical for effective resistance training.

Progression and Adaptation in Resistance Training

  • Need to progressively overload for continued strength adaptation.

  • For maintenance: 1 day of resistance training is sufficient if intensity is maintained.

  • Cardiorespiratory fitness needs to be maintained with 2-3 days of aerobic activity at the same intensity.

General Recommendations from ACSM

  • FitVP principles clear for strength training vary by goal:

    • Strength: >85% of 1RM

    • Power: differences in single vs. multiple efforts

    • Hypertrophy: focus on volume and varied exercise types.

Flexibility Training

  • Goals include improving range of motion and overall physical function.

  • Static stretching:

    • Some negative impacts on strength if not performed appropriately.

    • Acute improvements in flexibility seen after a single session but require continued practice for long-term benefits.

  • Recommendations:

    • 2-4 sets of 10-30 seconds stretches, with potential for longer stretches in older adults to achieve significant benefits on flexibility.

Types of Stretching

  • Static stretching: Holding muscle at a certain length.

  • Dynamic stretching: Gradually transitioning between body positions.

  • PNF (Proprioceptive Neuromuscular Facilitation) stretching: Involves contracting and relaxing muscles to increase range of motion.

  • Ballistic stretching to be applied with caution due to the potential risk for injuries from rapid movements.

Neuromotor Exercise/Functional Training

  • Recommendation for all populations, especially the elderly, to enhance balance, agility, and coordination.

  • Suggested volume: 2-3 days a week for about 30 minutes.

Sedentary Behavior Considerations

  • Addressing sedentary time as a critical factor for physical health beyond exercise recommendations.

  • Strategies for preventing prolonged sedentary behavior:

    • Encourage brief activity breaks throughout the day.

Weight Management Overview

  • Importance of addressing obesity and maintaining a healthy weight.

  • Risks associated with being overweight, including cardiovascular, metabolic, and pulmonary diseases.

  • BMI Curve: J-curve representing mortality risk concerning weight categories.

Body Composition Understanding

  • Types of obesity: Android (apple-shaped) vs. gynoid (pear-shaped) fat distribution, with different health implications.

  • Fat cell dynamics:

    • Hyperplasia and hypertrophy as mechanisms influencing body composition changes.

  • Twin studies indicating significant environmental influences on weight despite shared genetics.

Designing a Weight Management Program

  • Assess current body composition and caloric intake to inform guidance on weight goals.

  • Establish realistic goals for body weight and composition, mindful of age-related changes.

Assessment of Body Composition

  • Avoid outdated measures such as height-weight tables and excessive reliance on BMI alone.

  • Calculation of ideal body weight based on current composition and desired body fat percentage.