Research Paper 3-7
Annotated bibliography 8
Problem: Does throwing a weighted baseball increase your arm strength while not hampering your mechanics? Hypothesis: If the weight of the baseball is increased then the arm strength will increase but also hamper the mechanics of throwing. Materials:
Weighted baseball (10 ounces)
1. Warm up your arm and reach the distance of 150 feet, when you have reached that distance get the stop watch and have someone time how long it takes for you to throw the baseball to your partner. Repeat this step 100 times. 2.Add all the times up and divide by 100 then calculate the velocity using this equation V= D/T D=distance T=time. 3. Play catch with the weighted baseball from 60 feet for 100 throws for 5 days. 4. Warm up your arm and reach the distance of 150 feet, when you have reached that distance get the stop watch and have someone time how long it takes for you to throw the baseball to your partner. Repeat this step 100 times. 5.Add all the times up and divide by 100 then calculate the velocity using this equation V= D/T D=distance T=time. Data:
Day 1: Distance 150ft. average velocity 96.774 Date:12/26/11 Day 2: Distance 150ft. average velocity 100.671 Date: 12/28/11 Day 3: Distance 150ft. average velocity 102.739 Date:12/31/11 Day 4: Distance 150ft. average velocity 106.382 Date: 1/3/12 Day 5: Distance 150ft. average velocity 107.913 Date: 1/4/12
| Velocity| Arm Angle| Distance|
Day 1| 96.774| 92°| 150 ft.|
Day 2| 100.671| 92°| 150 ft.|
Day 3| 102.739| 93°| 150 ft.|
Day 4| 106.382| 93°| 150 ft.|
Day 5| 107.913| 94°| 150 ft.|
Throwing a weighted baseball does increase your arm strength but changes your mechanics slightly. One way that you can see if this works is try this with a different weight of a ball. Research Report:
I am interested in this topic because I have spent my whole life loving baseball and always trying to improve my fielding, hitting and batting. When I wasn’t able to walk yet I would watch any game that was on the television. It didn’t matter what team was playing or if they were getting destroyed I was just interested in watching the best at the game play. It is the same today everyone in my family says, "watching baseball on TV is boring." I just have a empty feeling in my stomach when it isn't during baseball season that any other sport will not fill Hinson 4
and I am always counting down the days until the new season starts and looking to see all the new trades or signings that are going on. The major reason that why I chose this subject is I have always been curious on if a weighted baseball actually increases your arm strength without severely messing up your mechanics. This has been one of the major down faults to a weighted baseball and is why many baseball players have refrained from using them and have just trusted weights and self weighted exercises to increase their arm strength. If I could conclude that using weighted baseball does increase your arm strength and does not mess up your mechanics. This would make it easier for baseball players to have a stronger arm and not have to spend hours at a time in the weight room trying to increase their arm strength. This would give me more time to focus on my other aspects of baseball such as batting and fielding. The information found in this experiment could change the game of baseball entirely and make the game "more exciting" to the people who think that baseball isn't fun to watch.
The Scientific Principles that I will be working with will be is Newton's Law of Motion....