Physiological Adaptations Caused by Weight Training

Neeraj Mehta

Physiological Adaptations Caused by Weight Training

Strength adaptations (heavy weight, lower reps)

• Hypertrophy of the muscle fiber.

• Hyperplasia of the muscle cell (seen in anabolic steroid users, high intensity training, and Zucker rats swimming to exhaustion).

• Increase in myofibril elements.

• Primarily innervates fast twitch fibers.

Endurance adaptations (low weight higher repetitions)

• Changes in the sarcoplasm and mitochondria.

• Increased capillary density (seen in cardiovascular training especially after myocardial infarction.

• Primarily innervates slow twitch fibers.

Maximal Volume of Oxygen Adaptations (Max V02)

• Increases with circuit aerobic training.

• Unchanged with heavy resistance.

Connective Tissue Adaptations

• Ligament strength increases.

• Tendon strength increases.

• Bone adaptations.

• Mineral content increases.

Body Composition Adaptations

• Increasing lean body mass.

• Increased basal metabolic.

Suggested By:
NEERAJ MEHTA, (Fitness Professional, Nutritionist and Inventor of BMXStrength ® Technique of exercise, Director of GFFI Fitness Academy)


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