These days at college a↑₽₩✔nd professional level, 12 minutes of runn♦₽←ing has been popular. Instead of choosinσ♠g endurance running, coacheσ ↓​s choose to use stopwatch to do "$↑↕sprint test, believing that shorter distance can∏♠" better reproduce the experience and reduce wea£∞πr. Football has alwa•¶✘ys maintained the dynamism♦≈§☆ of the test, from the col"×lege team to the FIFλβA referee to the Euro©δ pean top league players. Last fall, one of₽≠≥λ Cooper's friends communicated ₹±♣with the famous coach of the run≠₹ning club. He asked the t"π≈δrainer team to judge the fitness situation≤≠

We always use sportsλ↓≈  stopwatch for 12 minutes in third days of cros♦₩♦s-country training, which is definitely the ×β→pleasure of the end of spring. My α®<♦high school coach will bring dozens o≥​≤f students to the local trac±&k. In our suburb of Kansas, at 6 o♦≤♠γ9;clock in the morning, with his stopwatch,  "λ>he forced us to run on₹₽→ the oval runway and r‍☆→₽un in circles, as many as we coul​₹d do. The local police β←have their training centers on ₩±★a nearby hill.And under it, ourε✘↔♣ track is like a prison, the conte ♣stant is trapped, the driveway is s¶Ωcattered, and after a few minutes. When Wilson ₹¶calls the loudspeaker ≠≥≠↔to stop, even a better conditi↓≠×₽on is bending over the waist. Whet♣÷&↔her you are one of the fastes←♥t or the slowest runner 'εs, it doesn't discriminate£π₩♦ against the pain of running fo≠₽r 12 minutes with stopwatch.

For years I thought the coach had≥♥ made this unbearable stopwa←σtch. In fact, my pain is common.

Setting up a 12 minute run with stopwatch is↕Ω the most effective and mo₹∞®πst popular reflex test i₩★n the world. I put up with the same torture, like‌↔>± Bailey as a football ÷"§star, like Michael Jordan ÷→in a college basketball match. I'm aγ₩ player. All the pain came from the in‍​≤∏vention of Dr. Kenneth Cooper.

Cooper gained international fame by st ↔‍∞imulating modern move∞ ment through his book "aerobics". He∑₹9;s not well known because he s←↑αet up 12 minute run ★♠±↕with stopwatch, or, as others cλ♣β≈all it, Cooper tests. Tilly Cooper publishe≤σd this month is the 50th anπεniversary test, during this time, 12 m<☆inutes for the Champions Leagueλ•< , stopwatch time to run the univers→σ∑ity basketball team, as FIFA referee,The poli★δ♥✘ce use sports stopwatch. Many thousands σ of high school and amateur athletes all  >over the world, like those in senior  πhigh school, do not know what the exam is and✔↑ what makes it an ideal condition.