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Fitness Exam 2 5
Fitness Exam 2
| Question | Answer |
|---|---|
| Flexibility | The ability to move joints freely through their full range of motion |
| Five structural limitations to movement | 1. The shape of bones 2. Stiff muscles 3. Connective tissues (ligaments & cartilage) 4. Tendons 5. Tight skin |
| Benefits of Flexibility | • Increased joint mobility • More efficient body movement • Better posture • Prevents lower back pain (LBP) –Hypokinetic disease |
| Posture | The position of your joints that you hold while standing or sitting |
| Good posture: body in alignment | Holding positions that place the least amount of strain on supporting muscles and ligaments of a joint |
| Bad posture: body out of alignment | Holding positions that stretch muscles on one side of joint, while shortening them on other side (over time leads to pain/joint damage) |
| Routine strength and flexibility exercises help | correct imbalances and prevent future problems |
| Benefits of good posture:(1) | –Minimizes joint wear and prevents arthritis –Reduces stress on the ligaments in the spine –Prevents spinal nerve stress/associated pains –Prevents muscle fatigue(2) |
| Benefits of good posture:(2) | –Prevents strains or overuse problems –Prevents backache and muscular pain –Contributes to good appearance (2) |
| Assessing Flexibility | No single test can measure total body flexibility |
| Sit-and-reach test | –Measures ability to flex the trunk –Focuses on lower back muscles & hamstrings |
| Shoulder flexibility test | –Measures range of motion at the shoulder |
| FITT for Flexibility | • Prescription will vary depending on initial flexibility level • Exercises should be static or PNF stretches |
| • Starter phase | – Frequency: 2 sessions per week – Intensity: 5-minute session/hold for 10 seconds/mild discomfort – Time/duration: 3 weeks |
| • Slow progression phase | – Frequency: 3–4 sessions per week – Intensity: 10–30-minute sessions/hold for 15–30 seconds/mild discomfort – Time/duration: 6–12 weeks |
| • Maintenance phase | – Frequency: 4–5 sessions per week – Intensity: 30-minute sessions/hold stretches up to 30 seconds – Time/duration: start after about week 16 depending on progress |
| • Dynamic stretching | – Goal is to prepare body to exercise – Conducted prior to exercise and highly recommended – Fluid, controlled motion of joint through full ROM – Increases blood flow to muscles/joints – Increases neuromuscular activity between CNS and PNS |
| • Ballistic stretching | – Rapid, forceful, bouncing movements – More likely to cause injury and thus not recommended |
| • Static stretching | – Goal is to increase flexibility and recover from exercise – Most effective method to increase flexibility at end of exercise, not prior to exercise – Slow lengthening of muscles, held for fixed periods |
| • Proprioceptive neuromuscular facilitation (PNF) | – Series of motions combining stretching with alternately contracting and relaxing muscles • Relies on contract-relax (CR) and contract- relax/antagonist contract (CRAC) stretching |