Running involves a series of movements in the ankles, knees, hips and shoulders during every stride. The knee, for example, involves knee extension activated by the quadriceps muscle -- and knee flexion activated by the hamstrings. With each...
Glucosamine is a naturally occurring substance involved in cartilage formation. Cartilage is a type of connective tissue that pads bones within joints. Glucosamine supplements are taken to reduce the symptoms of arthritis and other joint...
Pushups are a popular exercise among military personnel, athletes and those interested in general fitness. According to Kyle Brown of the National Strength and Conditioning Association, pushups are among the most versatile strength training...
During a chin-up, the movement of the shoulder joint allows you to pull your body from a hanging position to an elevated position. The exact range of movement by the shoulder joint depends on whether your grip is narrow, with your hands just wider...
Upright row is a compound weight-training exercise, which means that it requires movement around more than one joint. The exercise can be completed with either a barbell or a set of dumbbells. It develops a variety of muscles that are situated...
In the human body, joints are the crucial skeletal elements that allow movement to take place. Joints are located at the site where two bones meet. The types of joints in the human body are classified by the level of movement they enable and...
The SI joint, or sacroiliac joint, connects your sacrum to ilium of your pelvis. Its functions are to stabilize your spine and pelvis and to absorb shock when you move. Although there is limited movement of the SI joint, there should be some...
Kicking a soccer ball requires orchestrating everything just so: feet, legs, hips, torso, head and even the arms out to provide balance. The hip joint, which connects the femur or thighbone to the pelvis, serves as the crossroads for a kinetic...
Yoga and tai-chi are ancient practices meant to balance body, mind and spirit. When done in alignment, both offer many health benefits that include strengthening your knees. According to MayoClinic.com, weak muscles are a leading cause of knee...
The range of motion (ROM) of a joint is an angular measure of that joint's movement between the fully extended and fully flexed position. The measurement of a joint's ROM is a common method of assessing a joint's recovery after an injury or...
Synovial joints are where two bones meet. The space between the bones is referred to as a joint cavity, consisting of ligaments connecting bones to bone. Tendons, connecting muscles to bones also cross the joints. Spongy pads, known as cartilage,...
The skeletal system consists of bone and joints. Bones support the body, allow for movement, are the site of blood cell production and protect the soft internal structures. Joints are the places where bones meet and work as levers so muscle...
Author Andrew Biel notes in "The Trail Guides to the Body", that a pivot joint allows one bone to rotate around another. The first and second cervical vertebrae pivot to allow neck movement from side to side, and the ulna and radius in the forearm...
For total fitness, it's important to include aerobic, flexibility and strength training in your weekly workout routines. You can build strength in a variety of ways, including performing exercises using your body weight and working out with free...
In isometric exercises, your muscles remain the same length as they contract. This type of exercise produces little or no joint movement once you have assumed the starting position of the exercise. Because of the lack of joint movement, isometric...
The shoulder joint is a ball-and-socket joint providing great range of motion and mobility, although as joint flexibility increases, joint stability is threatened. There are several muscle groups that cross the joint and provide stability, but...
The main goal of a warm-up before exercise is to raise the core temperature of the body. The higher the temperature, the more easily the body is able to move and respond to movement. Research, especially in strength and conditioning, has found...
Range of motion refers to the maximum amount of movement a joint is capable of. Basic joint movements include flexion, extension, abduction, adduction and rotation. Range of motion is assessed using a goniometer, which looks like a compass and...
The hack squat and lying leg curl both are lower body strength exercises that involve the hamstrings, but this is where the similarities end. The hack squat is a compound, multi-joint exercise and the lying leg curl is an isolation, single-joint...
You can design a more balanced workout regimen by identifying the antagonistic muscles for individual exercises. Antagonistic muscle groups move the same joint in opposite directions. Pullup antagonists tend to lengthen as the primary movers...
Osteoarthritis is a very common joint complaint leading to pain, swelling and difficulty moving joints. The four findings of osteoarthritis on x-rays are subchondral sclerosis or thickening of the bone, joint space narrowing, cysts and...
A bench press is a compound exercise that works the chest, shoulders and triceps all at the same time. Compound exercises are also known as multi-joint exercises because they involve more than one joint movement. This in turn fires up a high...
Resistance-training exercises are classified according to the number of joints at which movement takes place. Isolation, or single-joint, exercises involve motion at one joint only. Compound, or multiple-joint, exercises require movement at...
Trampolining is a competitive Olympic sport in which athletes perform advanced gymnastics skills while bouncing on a trampoline. Simply jumping on a trampoline and performing basic skills is a beneficial way to increase your level of physical...
When it comes to getting fit, there are countless exercise options. Learning about different types of exercise and identifying your goals can help you design an exercise program that meets your individual needs. Combining isometric and isotonic...
Joint muscles work in synergy to produce movement in your body. Your body needs several muscles working properly to produce even the simplest joint movement in your knee, for example. The overall effect of all muscles acting at a joint...
A single-joint movement, or isolation exercise, occurs at only one joint. The bicep curl is a single-joint exercise that targets the biceps, the muscles on the front of your upper arm. Although the bicep curl is a simple movement that only...
For most patients seeking to strengthen or rehabilitate an injured hip joint, many lower body movements prove uncomfortable and painful if done incorrectly. In order to reap the benefits associated with exercising the hip joint following trauma,...
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