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chapter Learning Objectives 7 Flexibility Assessment and Training • Describe flexibility. • List the factors that affect flexibility. • Understand the importance of flexibility. • Know your optimal level of flexibility. • Assess a person’s flexibility. • Know how to improve or maintain flexibility. Bob Weathers What Is Flexibility? • Flexibility: The ROM possible in a joint or group of joints—highly specific. • Static flexibility: Holding a stretched position. • Dynamic flexibility: Moving slowly and rhythmically through a full ROM—speed highly specific. • Ballistic flexibility: Moving through a ROM with bobbing (not recommended). • Laxity and hypermobility: Excessive ROM. Importance of Flexibility • Back pain—one part suffering . . . • Sit-and-reach test as predictor? • Between ages 20 and 70 there is a typical decrease of 20 to 30% in flexibility. • Living abundantly? (continued) Factors That Affect Flexibility • Bone structure • Elbows (hinge joint) • Shoulders (ball-and-socket joint) • Ligament strength—sprains occur when a ligament is stretched • Muscle and tendon elongation • Joint restriction—by large abdomen • All created unique Importance of Flexibility • 10 benefits (continued) • • • • • • • • • • Union of body, mind, and spirit Relaxation of stress and tension Muscular relaxation Self-discipline and self-knowledge Body fitness, posture, and symmetry Relief of low back pain Relief of muscle cramps Relief of muscle soreness Alter, 2004, pp. 8-14. Injury prevention Enjoyment and pleasure 1 How Much Flexibility Is Enough? Stretching • Questionable value before activity (unless movements expected to go well beyond normal ROM) • Best done following activity—needs to be regular • Earn flexibility, and abundant life, as the body ages • Never forget the unique creation of each person. Assessing Your Flexibility • Hamstrings and back: sit-and-reach test Not helpful • “Stiff as a board” • Hypermobility Assessing Your Flexibility (continued) • Shoulder flexibility: pass─fail shoulder flexibility test © Human Kinetics (continued) Assessing Your Flexibility (continued) (continued) Improving and Maintaining • Activities like yoga, tai chi, and Pilates Your Flexibility • Specific stretches • Static • Dynamic • Ballistic (muscle spindles) • PNF (Golgi tendon organ) © Human Kinetics (continued) 2 Improving and Your • HowMaintaining should you stretch? • Stretch after your body is warm (three to Flexibility (continued) five minutes warm-up) • Stretch two to three days per week (ideally five to seven days) • Stretch to the point of tightness (no discomfort). • Hold each stretch for 15 to 30 seconds. • Perform two to four repetitions of each stretch. ACSM, 2006. (continued) Improving and Maintaining Your • Stretching guidelines(continued) Flexibility • • • • • • • • Move into the stretch slowly. Hold the stretch. Feel mild tension in the middle of the stretched muscle. Ease off immediately when you feel pain. Relax all parts of the body. Don’t fight against the muscle. If you’re comfortable, increase the stretch gently. Gently ease out Harris of the stretch. Byl, 2004; & Elbourn, 2002. Alternatives to High-Risk Stretches High-risk stretches Alternative stretches Standing toe touch Seated toe touch or modified hurdler’s stretch Barre stretch Seated toe touch or modified hurdler’s stretch Hurdler’s stretch Modified hurdler's stretch Neck circle Nontwisting directional stretch Knee hyperextension Kneeling hip and thigh stretch Yoga plow Seated toe touch 3