The aim of this study is to looking the contribution of flexibility shoulder muscle as well as the muscular power of the hands in relation to the skill of butterfly stroke. The population or research subjects used are students of study Program PJKR FKIP Unsyiah 2015 number of 132 MHS. Sample or data source selected using Purposive Sampling technique with consideration of value for MK TP. Renang Lanjutan Category A is B a number of 25 people. Data collection is carried out using the Flexibility shoulder test and measurement approach, the leg muscle explosive power, and the butterfly swimming ability test. The collected data is processed using the mean statistical approach, deviation standard, regression analysis, as well as test F. Data processing results obtained score rx1y worth 0.91 contribution worth 82.81%, rx2y worth of 0.87 contributed worth 75.69%, and Rx1x2y Worth 0.86 But the value of Fcount is greater than that of Ftabel with significance worth. Abstrak Tujuan dari penelitian yang dilakukan ini adalah untuk mengetahui kontribusi flexibilitas otot bahu serta daya ledak otot tungkai dalam kaitannya dengan keterampilan berenang gaya kupu atau butterfly stroke. Populasi atau subjek penelitian yang digunakan yaitu Mahasiswa Program Studi PJKR FKIP Unsyiah angkatan 2015 sejumlah 132 Mhs. Sampel atau sumber data dipilih dengan menggunakan teknik Purposive Sampling dengan pertimbagan nilai untuk MK Renang Lanjutan kategori A samapi B sejumlah 25 orang. Pengumpulan data dilakukan menggunakan pendekatan tes dan pengukuran kelentukan bahu, daya ledak otot tungkai, serta tes kemampuan renang gaya kupu. Data yang terkumpul diolah mengunakan pendekatan statistik mean, standar deviasi, analisis regresi, serta uji F. Hasil pengolahan data diperoleh score rx1y senilai 0,91 berkontribusi senilai 82,81%, rx2y senilai 0,87 berkontribusi senilai 75,69%, dan Rx1x2y senilai 0,86 namun nilai Fhitung lebih besar dari pada Ftabel dengan signifikansi senilai 95% (db= n-k-1) yaitu= 25 – 2 – 1 = 22, oleh sebab itu didapati Ftabel=3.54, serta Fhitung=36. Sehubungan dengan itu dapat digambarkan bahwa kelentukan bahu dan daya ledak otot tungkai berkontribusi signifikan terhadap kemampuan renang gaya kupu-kupu. Kata Kunci:  Kelentukan, Power, Gaya Kupu-kupu

The human will be energetic in doing daily life activities as the impact practicing sport consistently and consequently. Practicing sport instills moral values, noble character, sportivity, discipline, avoid discrimination such religion discrimination, tribe, difference social status, and other form of discrimination. The purpose of this research was to find out the Physicalal fitness level of female students of Sukamakmur 1 Junior High School. This research was a descriptive research. The population was female students of Sukamakmur 1 Junior High School. The sample was the female students of VIII Grade which was 30 people. The data collection technique was by using Aceh Physicalal Fitness Testing or well known as tes Kebugaran Jasmani Aceh (TKJA), such as; 1) the speed test (run 40 meter), 2) the strength endurance test (push up), 3) Flexibility test (sit and reach), 4) Power (jump forward one leg). 5) cardiovascular Endurance test (bufagon run 800 meter). The data analysis technique was by calculating the average score and its percentage. The result of this research indicated that in the push-up test, more than half of the female students were having good category, while in the 'Sit and reach' were in lacking category.

When a person reaches the elderly phase, the function of the body's organs decreases, which causes an increased risk of disease and death. Including dental infections such as caries and periodontal disease which are the main factors for tooth loss. Tooth loss does not only affect the impact of mastication but also affects a person's cognitive function. This condition occurs because when a person loses teeth, the function of the Periodontal Mechanoreceptors decreases, disrupting the function of the hippocampus which is important for memory in the brain. Loss of a large number of teeth tends to indicate low cognitive function, but several factors affect cognitive function, namely education level, Diabetes Mellitus, Hypertension, heart disease, depression, sleep disorders, head injury, physical activity, and a history of smoking. Mini-Mental State Examination (MMSE) is a tool to assess a person's cognitive function. This study aims to see the description of cognitive function in the elderly at the Geunaseh Sayang Nursing Home with variations in the number of tooth losses. This study was conducted with 43 research subjects with interviews and intra-oral examination methods. Based on the results of the study, it can be concluded that the elderly who only have fewer teeth show a higher decline in cognitive function compared to the elderly with more teeth in the oral cavity. This is following the theory which states that the more teeth you lose, the lower your cognitive function will be.