Fitness, Sports & Recreation FEATURE MUSCLE FRONT BACK DELTOID WARM UP, COOL DOWN INFORMATION • • • • The Deltoid muscle forms the cap which cover the area above the upper arm. It is the largest shoulder muscle and contains 3 heads which are made up of distinct sets of muscle fibers, each with their own origins. The anterior, lateral and posterior heads of the deltoid all meet and attach at the top of the humorous (upper arm) bone. The main function of the deltoid is to move the arm away from the body (to the front, side and back). It also assists in overhead movements, such as shoulder presses, as well as internal and external rotation of the arm. • • • The anterior, or front deltoid originates from the lower end of the collar bone. Its main responsibility is to raise the arm upward and to the front (shoulder flexion) and internal rotation (turning the arm inward). & STRETCHING • Alternate swinging arms over and under each other, from wide with an open chest, to crossed in front of the chest. Do 10-15 of each. Gradually move from small arm circles to medium and then large. Perform circles forward and backwards. Do 15-30 times each way. • • The lateral deltoid originates at the acromion process of the scapula. Its main function is to move the arm upward and to the side (abduction). To isolate this portion of the deltoid, be sure to keep movement in the frontal plane. The posterior, or rear deltoid originates from the inner, lower edge of the shoulder blade. It moves the arm backwards and away from the body (extension). It also aids in external rotation (turning the arm outward). Before your workout: Perform a light aerobic warm up such as jogging, skipping or jumping jacks. Do dynamic stretches that move your arms in a controlled manor, through a full range of motion. • After your Workout: Static stretching after your workout is essential to achieve and maintain flexibility and prevent DOMS (delayed onset muscle soreness). Hold the stretch for 45-60 sec and repeat 1-2 times per arm. Avoid overstretching by taking the stretch to mild discomfort, but not to pain. Place your arm behind the back and use the other arm to gently pull it towards the opposite hip. To progress clasp both arms behind the back and pull both arms up and away from the body. • Press your arm against the wall and gently rotate your body away. Perform with the elbow straight and bent. • Reach your arm across the front of your chest, keeping it level with the shoulder, gently pull it towards you with the opposite arm. Maintain proper posture and avoid turning the body to the side. • Overhead Press: 1. Grasp the weight with an under hand grip. Keep the back straight and elbows raised to align with the shoulder. 2. Press the weight up over head by extending the arms. Do not lock out the elbows and ensure that the core is engaged and proper spinal alignment is maintained. 3. Return to starting position and repeat, completing the appropriate rep and set range for your personal strength goals. - Use a barbell, dumbbell, kettlebell, cable pulley, machines (plate or pin loaded), resistance band or land mine (barbell anchored in a corner). - Perform with both arms simultaneously or one arm at a time, elbows pointed forward or out to the side (dependant on equipment). - Position of the lower body can be seated or standing. Explosive lifts can be from a gentle knee bend (push press) or a squat (thruster/squat press). - Incorporating an explosive movement that engages the lower body for the lift such as the push press and thruster, are advanced versions of this exercise and will generally allow you to lift more weight than from a static position. - Ensure that proper form is mastered and base strength is achieved before increasing the load or progressing the exercise. High Pull: 1. Stand up tall and grasp the weight with an overhand grip, hands should be roughly shoulder width apart and arms at full extension 2. Initiate an upward drive with the elbows, pulling the weight as high as you can (chin level). Allow the wrists to stay neutral and ensure proper spinal alignment is maintained. 3. Return to starting position and repeat, completing the appropriate rep and set range for your personal strength goals. - Use a barbell, dumbbell, kettlebell, cable pulley or resistance band. - Perform with both arms simultaneously or one arm at a time. - Starting position of the lower body can be from standing, a gentle knee bend or squatted. - To progress this exercise incorperate an explosive heel raise at the end of the lift. - Ensure that proper form is mastered and base strength is achieved before increasing the weight or progressing the exercise. Front Raise: 1. Grasp the weight with an overhand hand grip and let the arm hang in front or at the side of the thigh. 2. Lift the weight up, and to the front, until the hands are in line with the shoulder (no higher). Aim to keep the arms fairly straight but not locked at the elbow. Keep the core tight and spine neutral. Do not bend the back to create force for the lift. 3. Return to starting position and repeat, completing the appropriate rep and set range for your personal strength goals. - Use a barbell, dumbbells, kettlebells, cable pulley or resistance band. - Perform with both arms simultaneously or one arm at a time. Side Raise: 1. Grasp the weights with an overhand hand grip and let them hang at the side of the thigh. 2. With palms down, lift the weight out to the side, until the hands are in line with the shoulder (no higher). Aim to keep the arms straight (not locked) or slightly bent. Keep the core tight and spine neutral. 3. Return to starting position and repeat, completing the appropriate rep and set range for your personal strength goals. - Use dumbbells, kettlebells, a cable pulley or resistance band. - Perform with both arms simultaneously or one arm at a time. Rear fly: 1. Bend the knees and hinge forward at the hip. Grasp the weight with palms facing each other and arms hanging below the shoulders. 2. Lift the weight up and out to the side, until the hands are in line with the shoulder. Keep the head up, shoulders back, spine neutral and core tight. Arms should be straight (not locked) or slightly bent. 3. Return to starting position and repeat, completing the appropriate rep and set range for your personal strength goals. - Use a dumbbells, kettlebells or a resistance band. - Perform with both arms simultaneously or one arm at a time. - Perform seated or, to avoid unsupported forward flexion, rest the chest on a bench (lying or incline).