Article: Run on a track (outdoors or indoors) if possible; if not, find a field with grass or astroturf. Avoid running on concrete or pavement, as these surfaces cannot absorb your body's impact as well as tracks and fields. While it is fine to train on treadmills, it's best to begin outdoors, where you will have a greater flexibility to work on your form. Before any sprinting or running session, take some time to warm up your muscles. Start by jogging for at least 5 minutes, and then incorporate some dynamic stretching drills, including high knees, butt kicks, walking lunges, and skips. Once your body is warm, stretch your major muscle groups. Devote certain training days to speed training by running a series of short sprints, under 100m each. Your sprint speed will increase when you devote workouts to pushing yourself to sprint as fast as you possibly can. On speed training days, you should focus on short, timed sprints, where you can track your progress and try to beat your previous speeds. Try a sample speed day workout to get started: Start by running 80m five times (5x80m), with a 3-minute recovery in-between. If you're running on a track, run based on the markings the straight side of the oval track (the straightaway is 100m total); if not, be sure to measure and mark this distance. Follow your 80m sprints with 4x70m, 3x60m, 2x20m sprints, each with 3 minute recovery periods in-between sprints. Take 10 min break, drink some water, and let your pulse go down when you have finished the reps of each different sprint distance (i.e. between your 5x80m and 4x70m). Perform endurance workouts to improve your heart rate, and thus your ability to sprint for longer periods of time. Devote certain training days to improving your stamina by pushing yourself to sustain your sprint pace for extended distances, with sprint lengths between 400-1200m meters. Try the following workout to get started: Jog a mile to warm up. Sprint one lap (400m) at a fast, controlled speed. Jog/walk until you catch your breath. Sprint two laps (800m) at a fast, controlled speed, and then three laps (1200m), taking time to jog/walk in between sets. Sprint two more laps at the same fast speed, and finish with one final lap. By the end of the workout, you will have counted both up and down from three full laps (1-2-3-2-1). After each workout, cool down by jogging for a few minutes, and performing dynamic and static stretching routines. Doing so will help prevent tightness in your muscles, which can cause pain or joint problems.
Question: What is a summary of what this article is about?
Train on a track or field. Begin with a warm-up. Run short-distance sprints. Practice long distance running drills. Cool down.

If you are experiencing any of the symptoms mentioned above, you also need to consider if you fall into the high risk group of ectopic pregnancies. Certain factors increase a woman's likelihood of experiencing an ectopic pregnancy. Generally, women who have had an ectopic pregnancy in the past are more likely to experience such pregnancies in the future too. Other risk factors include: pelvic infections (sexually transmitted infections), multiple sexual partners (as this increases the chance of unknown STI's), fallopian tube tumors or abnormalities, previous abdominal or pelvic surgery, having an IUD, endometriosis, or smoking. Also, if a woman has had "sterilization" (also known a "tubal ligation" surgery, when her "tubes are tied" in an effort to prevent future pregnancy), although this is normally very successful in preventing pregnancy if one were to become pregnant the risk of it being an ectopic pregnancy is notably higher. This is the first step towards the diagnosis of an ectopic pregnancy. -HCG is a hormone that is secreted by the developing embryo and placenta, so it rises as the pregnancy progresses and is a more definitive (and reliable) form of pregnancy test. If the -HCG level is above 1500 IU/L (often between 1500-2000 IU/L is suspicious), but no pregnancy is seen with ultrasound, doctors will worry about you having an ectopic pregnancy. This is because the -HCG levels are normally higher in ectopic pregnancy than in normal intrauterine pregnancies, so it is certainly a cause for suspicion. If an ectopic pregnancy is suspected due to your -HCG levels, your doctor will follow this up with a transvaginal ultrasound to see if she can visualize a pregnancy, and its location. These ultrasounds can detect 75-85% of ectopic pregnancies (the growing fetus will be able to be seen on ultrasound in that percentage of cases, which confirms its location). Note that a negative ultrasound does not rule out an ectopic pregnancy. A positive ultrasound (one that confirms the presence of a pregnancy in the fallopian tubes or elsewhere outside the uterus), however, is enough to make the diagnosis. If the ultrasound is negative (i.e. inconclusive), but the -HCG level is high and your symptoms are enough to concern your doctor that you may have an ectopic pregnancy, your doctor will likely recommend a "diagnostic laparoscopy," which is a simple surgery with very small incisions where they can insert cameras into your abdomen to have a clearer look. If your blood tests and ultrasounds seem inconclusive, and an ectopic pregnancy is still suspected, your doctor may perform a diagnostic laparoscopy to visualize your pelvic and abdominal organs internally to look for the spot of implantation. This procedure usually lasts for 30 minutes to an hour.
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One-sentence summary --
Consider whether any of the risk factors for ectopic pregnancy apply to you. Have your -HCG levels checked in a blood test. Undergo a transvaginal ultrasound. Allow your doctor to perform a diagnostic laparoscopy.