Quality of U15 Gatra Semarang Badminton Club Players in 2019

Abstract

Gatra Semarang Badminton Club players at low achievement are suspected of having quality problems. This research is to describe the technical and physical quality of them. This research is a quantitative study with descriptive results. The population as well as the research sample of nine male players housed under the age of 15 years. This research variable is the quality of Gatra Semarang Badminton Club in 2019. Retrieval of data using technical instruments (clear service, lop, smash and drop shot) and physical (vertical jump, curtyard agility, skipping rope, sit ups, push ups and beep test). The results showed, 1). The quality of technical is very good 1, good 2, medium 3, less 2, very less 1 players. 2). Physical quality is very good 0, good 3, medium 3, less 2 and very less 1 players. Based on the results of research that concludes the average quality of moderate technique and average physical quality rating. To players who support technical training with truly physical training that is sufficient for quality as a badminton player can improve to become very good.

Identification and quantification of minerals and vitamins of purple sweet potato (Ipomoea batatas) leave

“…This study identified and quantified minerals and vitamins in purple sweet potato leaf flour that can provide health benefits, being a good source of nutrition. Previous research has found minerals (K, Na, Ca, µg, Cu, Zn, Fe, and Mn) in purple sweet potato leaves [30]. In addition, previous research also found the fact that purple sweet potato leaves contained minerals (Fe, Zn, Cu, Mn, Ca, K, µg, Na, P, and Vitamin C and Betacarotene [7].…”

“…In addition, copper supports the function of blood vessels, the nervous system, and the immune system, as well as bone growth [29]. The copper content of these purple sweet potato leaves (is 5 µg/100g), while the copper requirement for children and adults is 1-3 µg/day [6], and for pregnant and lactating women 50 -120 µg/day [30].…”

“…This study revealed potassium in purple sweet potato leaf flour (1,786,556 µg/100g). The need for potassium according to the AKG is 4500-4700 µg/ day [31], so purple sweet potato leaves are an excellent source of potassium for people with hypertension, especially pregnant women who are prone to high blood pressure before childbirth and after childbirth or the postpartum period [6,30].…”