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Related Concept Videos

Exercise and Muscle Performance01:27

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Isotonic and Isometric Muscle Contractions01:22

Isotonic and Isometric Muscle Contractions

Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while the...
Design Consideration01:22

Design Consideration

Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key aspect...
Strength of Cement01:20

Strength of Cement

Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...

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Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis
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Published on: January 29, 2016

Choosing a strength training program for kids.

Holly J Benjamin1, Kimberly M Glow, Patricia D Mees

  • 1Departments of Pediatrics and Orthopedic Surgery and Rehabilitation Medicine, University of Chicago, Chicago, IL, 60612, USA.

The Physician and Sportsmedicine
|January 21, 2010
PubMed
Summary
This summary is machine-generated.

Youth strength training enhances athletic performance, coordination, and confidence. It also improves bone health and aids in weight management for children. Ensure safety by understanding proper program guidelines.

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Area of Science:

  • Pediatrics
  • Sports Medicine
  • Youth Fitness

Background:

  • Strength training is a component of youth fitness programs.
  • It can improve athletic performance and prevent injuries.
  • Benefits include enhanced self-confidence, social skills, bone health, and weight management.

Purpose of the Study:

  • To outline the benefits of strength training for children.
  • To provide guidance on safe and effective strength training programs for youth.

Main Methods:

  • This is a review and guidance document, not an experimental study.
  • Focuses on established principles of youth strength training.

Main Results:

  • Strength training improves muscle coordination, leading to better athletic performance.
  • Programs can boost self-esteem and social skills.
  • Bone health is positively impacted, and it aids in weight loss for overweight children.

Conclusions:

  • Safe and well-structured strength training is beneficial for overall youth development.
  • Parents and guardians should be informed about key considerations for initiating youth strength training programs.