1.1: Kinesiology and its Subdisciplines

Learning Objectives

• Identify the historical figures and key contributions that shaped the development of kinesiology as a profession.
• Describe the major sub-disciplines within kinesiology and explain their roles in promoting human movement and overall health.

Human movement is a fundamental aspect of life, from the simple actions of daily living to the dynamic movements of competitive sports. Yet, while these movements may appear similar, they fall into distinct categories: movement, physical activity, exercise, and sport. Movement refers to any action of the body, whether voluntary or involuntary, such as standing, sitting, or even breathing. Physical activity, on the other hand, is any purposeful movement that requires energy expenditure, like walking, climbing stairs, or doing household chores. Exercise is a more specific form of physical activity, structured and repetitive, aimed at improving or maintaining physical fitness, such as running or lifting weights. Finally, sport involves organized, rule-governed physical activity, often competitive, where the primary focus is on performance and skill enhancement.

At the heart of these concepts is kinesiology, a multidisciplinary field that explores the complex relationship between human movement and overall health, well-being, and performance. Kinesiology integrates knowledge from disciplines such as anatomy, physiology, biomechanics, psychology, and sociology to understand how the human body moves and functions in different contexts. Whether it’s examining the mechanics behind a perfect golf swing or understanding the mental and emotional factors that drive athletic performance, kinesiology provides a comprehensive framework for studying movement. Its applications are far-reaching, influencing fields like sports and exercise science, physical therapy, rehabilitation, ergonomics, and public health.

The Historical Roots of Kinesiology as a Profession 

The historical foundation of the development of Kinesiology as a profession traces its roots to various disciplines and movements that contributed to the understanding of human movement and physical activity. The term kinesiology, itself, is derived from the Greek words "kinesis" (movement) and "logos" (study).  

Early Contributions: Leonardo da Vinci (1452–1519)

Leonardo da Vinci made notable contributions to the field of kinesiology through his keen observations and anatomical studies during the Renaissance. He conducted meticulous dissections of human cadavers, documenting detailed anatomical structures and their functions. Da Vinci's early work in kinesiology focused on understanding the mechanics of human movement, including the musculoskeletal system and the interactions between bones, muscles, and joints. His anatomical drawings and sketches, such as the famous Vitruvian Man, provided valuable insights into the principles of biomechanics and human kinetics. His interdisciplinary approach, combining art and science, laid the foundation for future advancements in kinesiology and our understanding of human physiology and movement.

The Integration of Science and Physical Education: Dudley Sargent (1849–1924)

The emergence of kinesiology as a distinct field can be linked to the early 20th century, where key figures like Dudley Sargent played an instrumental role. Sargent, a physical education professor at Harvard University, emphasized a scientific approach to physical education and fitness. He developed physical fitness programs that integrated anatomy, physiology, and biomechanics to improve overall human movement and performance. Sargent's contribution marked the early integration of science into physical education, a cornerstone in the development of kinesiology as a profession.

The Fitness and Wellness Movement: Dr. Hans Kraus and Bonnie Prudden (Mid-20th Century)

The mid-20th century saw a shift towards a more holistic understanding of exercise and its impact on health, largely due to researchers like Dr. Hans Kraus and Bonnie Prudden. Dr. Kraus, a renown physician, and Bonnie Prudden, a fitness pioneer, conducted influential studies that raised awareness about physical fitness deficits in the American population. Their landmark Kraus-Weber Test (see Figure \(\PageIndex{1}\)), conducted in the 1950s, revealed alarming weaknesses in American children’s physical fitness compared to their European counterparts.

Bonnie Prudden was instrumental in advocating for physical education programs in schools and developing fitness programs aimed at addressing widespread fitness issues. Her fitness advocacy contributed to a broader recognition of the importance of physical activity for health, laying essential groundwork for the modern understanding of kinesiology.

Figure \(\PageIndex{1}\):

Kraus-Weber Test. The images shown are the six tests of key muscle groups represent the minimal performance necessary for healthy living. Because this is a MINIMUM test, you will need to be able to perform ALL SIX PARTS successfully.

Position 1: Lie down on back, legs straight, feet held down, hands behind neck. Action: Roll to a sitting position once.

Position 2: Lie down on back, knees bent, feet held down, hands behind neck. Action: Roll to sitting position once.

Position 3: Lie on back, hands behind neck. Action: Lift both legs up 8-10 inches from floor, hold for a count of 10 seconds.

Position 4: Lie face down. Place small pillow under hips. Lower body held down, hands behind neck. Action: Lift upper body off floor and hold for a count of 10 seconds.

Position 5: Life face down. Place small pillow under hips. Upper body held down, head resting on hands. Action: Lift lower body from hips and hold for a count of 10 seconds.

Position 6: Stand, feet together, knees straight. Action: Bend slowly forward and see how close you can come to touch the floor. If you can touch, hold for count of three. If you can’t touch, measure distance from finger to floor.

Source: https://bonnieprudden.com/the-fitness-of-you/

 

Institutionalization of Kinesiology: Dr. Franklin Henry and the Rise of Academic Programs (1960s–1980s)

Kinesiology's evolution as an academic discipline gained momentum through the work of Dr. Franklin Henry. Henry, often regarded as the "father of modern kinesiology," was a psychologist and professor at the University of California, Berkeley. His research on motor learning and human movement underscored the importance of a scientific foundation for kinesiology. Henry’s work helped to expand kinesiology beyond physical education, framing it as a discipline rooted in research and scientific inquiry.

In the latter half of the 20th century, institutions began to formally recognize kinesiology as an academic discipline. Universities established dedicated programs and degrees focusing on sub-disciplines such as exercise physiology, biomechanics, motor learning, and sports psychology. This period saw kinesiology emerge from its physical education origins to become a multidisciplinary academic field that integrates health sciences, psychology, and physiology.

Formation of the American Kinesiology Association (1983)

The academic institutionalization of kinesiology was further solidified with the formation of the American Kinesiology Association (AKA) in 1983. The AKA played a key role in advocating for the recognition of kinesiology as a legitimate academic and professional field, promoting research, education, and professional standards within the discipline. The establishment of this organization reflected a broader recognition of kinesiology's value in addressing both the scientific and practical aspects of human movement and health.

Kinesiology as a profession evolved through the integration of scientific principles, advancements in physical education, and a growing recognition of the multifaceted impact of physical activity on health. This trajectory laid the groundwork for kinesiology to emerge as a comprehensive field of study and profession, most notably, for careers in helping individuals enhance their physical performance, prevent injuries, and rehabilitate from various conditions or traumas.

Modern Day: Kinesiology Guides Physical Activity Recommendations

A landmark moment in the field occurred with the publication of Physical Activity and Health: A Report of the Surgeon General (1996), which fundamentally reshaped the understanding of physical activity's role in promoting health and preventing disease. The report emphasized that regular physical activity is crucial for maintaining and improving health, reducing the risk of chronic diseases like heart disease, diabetes, and certain cancers, and improving quality of life. It underscored the value of moderate-intensity activities, such as brisk walking for at least 30 minutes on most days, showing that even small increases in daily movement can significantly enhance health. In addition, the report highlighted the importance of physical activity in managing conditions like osteoporosis and cardiovascular disease, while addressing disparities in physical activity participation, particularly in underserved populations. Its recommendations have since shaped public health guidelines and inspired initiatives such as Healthy People 2030, which continues to prioritize physical activity across all age groups and demographics.

The Surgeon General's report not only reinforced the critical role of physical activity in health but also further solidified the importance of kinesiology in guiding individuals and communities toward more active and healthy lifestyles. Kinesiology professionals play a pivotal role in promoting safe and effective movement practices to enhance health outcomes, reduce injury risk, and improve overall well-being. Whether in the context of professional sports, rehabilitation, or everyday life, kinesiology provides the tools and knowledge to foster a healthier, more active society.

In the field of kinesiology, professionals and students alike can enhance their knowledge and career prospects by engaging with reputable organizations that set standards for research, education, and practice. Organizations such as the American College of Sports Medicine (ACSM), the National Strength and Conditioning Association (NSCA), and the American Council on Exercise (ACE) play pivotal roles in advancing the field of kinesiology. These organizations provide certifications, publish cutting-edge research, and offer continuing education opportunities that ensure professionals stay current with the latest evidence-based practices. Membership in such organizations not only grants access to valuable resources like scientific journals, conferences, and networking opportunities but also establishes credibility and professional recognition in the field. For kinesiology professionals, becoming a member of these organizations helps keep them aligned with industry standards, enhances career advancement, and fosters a deeper connection with the community of experts dedicated to improving health and human performance.

Sub-disciplines

Kinesiology is an ever-evolving field, continually influenced by advancements in technology, research, and our understanding of the human body.  With this evolution has come the development of multiple sub-disciplines. It offers a wide range of career opportunities, from sports coaching and personal training to clinical rehabilitation and scientific research. Kinesiology encompasses several sub-disciplines, including:

Exercise Science: This branch focuses on understanding how physical activity and exercise influence the body's physiological processes. Exercise scientists design fitness programs, conduct research on the benefits of exercise, and help individuals improve their physical health and fitness.

Biomechanics: Biomechanics involves the study of the mechanical aspects of human movement, including the forces, torque, and motion patterns during physical activities. It is essential for improving athletic performance, designing ergonomic equipment, and preventing injuries.

Sports Psychology: Kinesiologists in this area explore the psychological factors that affect an individual's performance in sports and physical activities. They work with athletes to enhance motivation, mental toughness, and focus.

Physical Therapy and Rehabilitation: Kinesiology plays a vital role in the rehabilitation process by helping individuals recover from injuries, surgeries, or chronic conditions. Kinesiologists design personalized exercise programs to improve strength, flexibility, and function.

Public Health: In the context of public health, kinesiology is concerned with promoting physical activity, preventing chronic diseases, and improving overall community health. This includes interventions such as designing activity-friendly urban environments and creating public health campaigns.

Collectively, these sub-disciplines are central to enhancing human movement, health, and well-being, making them crucial to the pursuit of a healthier and more active society.  In the upcoming chapters we will explore each of these sub-disciplines and related career fields.