Claim Missing Document
Check
Articles

Found 3 Documents
Search

KONTRIBUSI POWER OTOT LENGAN DAN KELENTUKAN TOGOK TERHADAP KETERAMPILAN BERMAIN BOLA VOLI PADA ATLET SMA NEGERI 5 BANDA ACEH Muhajir, M.; Saifuddin, .; Ifwandi, .
Jurnal Ilmiah Mahasiswa Pendidikan Jasmani, Kesehatan dan Rekreasi Vol 2, No 3 (2016): WISUDA PERIODE MEI - JULI 2016
Publisher : Jurnal Ilmiah Mahasiswa Pendidikan Jasmani, Kesehatan dan Rekreasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian yang berjudul “Kontribusi Power Otot Lengan Dan Kelentukan Togok Terhadap Keterampilan Bermain Bola Voli Pada Atlet SMA Negeri 5 Banda Aceh”. Menurut para pakar olahraga Power otot lengan dan kelentukan togok dapat memberi kontribusi pada keterampilan bermain bola voli. Penelitian ini mengangkat masalah apakah terdapat kontribusi power otot lengan dan kelentukan togok pada keterampilan bermain bola voli. Penelitian ini bertujuan untuk mengetahui apakah terdapat kontribusi power otot lengan dan kelentukan togok terhadap keterampilan bermain bola voli pada atlet SMA Negeri 5 Banda Aceh tahun pelajaran 2015/2016. Jenis penelitian ini dinamakan penelitian deskriptif. Populasi dalam penelitian ini adalah seluruh atlet SMA Negeri 5 Banda Aceh yang berjumlah 18 orang. Mengingat jumlah populasi yang relative kecil, maka semua anggota populasi dijadikan sampel dalam penelitian ini, Teknik pengumpulan data dilakukan dengan cara: (1) tes power otot lengan, diukur dengan tes Medicine ball pass, (2) tes pengukuran kelentukan togok, diukur dengan alat pengukur fliximaicure (3) tes keterampilan bermian bola voli, diukur dengan tes servis, passing dan smash. Pengeolahan data dilakukan dengan menggunakan rumus analisis kolerasi sederhana dan korelasi ganda. Hasil penelitian yang diperoleh adalah sebagai berikut: (1) power otot lengan memberikan kontribusi sebesar 2,34% terhadap keterampilan bermain bola voli, dan terdapat hubungan positif dan signifikan antara power otot lengan dengan keterampilan bermain bola voli sebesar (r= 0,61). (2) kelentukan togok memberikan kontribusi sebesar 23,52% terhadap keterampilan bermain bola voli dan terdapat hubungan yang positif dan signifikan terhadap keterampilan bermain bola voli sebesar (r= 0,485). (3) power otot lengan dan kelentukan togok memberikan kontribusi sebasar 24,90% terhadap keterampilan bermain bola voli, selanjutnya power otot lengan dan kelentukan togok juga memiliki hubungan yang positif dan signifikan terhadap keterampilan bermian bola voli sebesar (r= 0,499) Hal tersebut membuktikan bahwa benar adanya kontribusi pada variabel power otot lengan dan variabel kelentukan togok terhadap variabel keterampilan bermain bola voli.
Studi Pengaruh Penambahan Abu Batu Sebagai Pengganti Pasir Pada Beton Mutu K-250 Listiawaty, H.; Namira, S.A.; Aryasin, M.; Muhajir, M.; Martani, S.W.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 6 Issue 1 (March 2025)
Publisher : Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v6i1.712

Abstract

The handling of stone ash waste from the by-product of the Quarry C crushed stone factory with the number of factories along the Palu-Donggala road has not been handled properly until now. The potential for utilization for building materials such as lightweight concrete, paving blocks and rosters as well as fillers for asphalt concrete mixtures and rigid pavements at airports is still large to be developed. Based on this, stone ash waste can be used as a building material to build structures and infrastructure. However, the characteristics of the basic materials and building materials made from stone ash waste must be re-tested. The analysis was carried out on the results of the concrete compressive strength test (SNI 03-1974-2011), which is a comparative analysis of various conditions of the age of the test object and the percentage of stone ash addition to the weight of fine aggregate obtained from the laboratory. The addition of stone ash as a partial replacement for fine aggregate can increase the compressive strength of concrete by up to 9.64% compared to the compressive strength of normal concrete. The optimum level of stone ash addition as a partial replacement for fine aggregate occurs at a variation of 20% stone ash from the weight of fine aggregate. The compressive strength of 28-day concrete that occurs in this variation is 23.590 MPa, while the compressive strength of concrete without the addition of stone ash is 21.515 MPa. The compressive strength value of concrete with 50% rock ash content has the lowest compressive strength value of 21.137 MPa, where there is a decrease in the compressive strength value of 1.75% compared to the compressive strength value of concrete without the addition of stone ash..
Effects of Variations in the Application of Cocoa Pod Shell Compost and Mexican Lilac Liquid Organic Fertilizer on the Growth and Production of Yellow Bell Pepper Plants in Lowland Hairuddin, Rahman; Muhajir, M.; Hamdani, Ulfah Zakiyah
Agrotech Journal Vol 8, No 2 (2023): Agrotech Journal
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/atj.v8i2.2100

Abstract

A research study aimed at evaluating the efficacy and determining the optimal dosage of cocoa pod shell compost fertilizer for enhancing the growth and production of yellow pepper plants in the lowland was conducted. This research was carried out at Experimental Field II, Faculty of Agriculture, Cokraminoto University, Palopo, located on Jalan Lamaranginang, Batu Pasi Village, North Wara District, Palopo City, from July to October 2023. The experimental design employed was Randomized Block Design, encompassing six treatments with four replications. The level treatments used were designed as follows: P0 (no treatment), P1 (135 gr cocoa husk compost and 100 ml/L of liquid organic fertilizer of mexican lilac), P2 (185 gr cocoa husk compost and 150 ml/L of liquid organic fertilizer of mexican lilac), P3 (235 gr cocoa husk compost and 150 ml/L of liquid organic fertilizer of mexican lilac + 200 ml/L of liquid organic fertilizer (gamal), P4 (cocoa pod husk compost 285 gr and liquid organic fertilizer of mexican lilac 250 ml/L, P5 (cocoa pod husk compost 335 gr and liquid organic fertilizer of mexican lilac 300 ml/L).  The parameters observed included plant height, flowering age, number of flowers, number of fruit, fruit weight and fruit diameter. Upon conducting research and data analysis, it was revealed that the P3 treatment exerted a highly significant effect on the parameters of fruit weight (449.78 grams).  Conversely, P3 demonstrated no significant impact on the parameters of the number of fruits (4.00), fruit diameter (135.20 cm), plant height (39.38 cm), number of flowers (7.88 florets) and flowering age (34.63 HST). In light of these findings, it is recommended to consider an increase in the dosage of cocoa pod husk compost and liquid organic fertilizer (Mexican lilac) to optimize the growth and production of yellow bell pepper plants in subsequent research endeavors