Chiropractic adjustive therapy on sprint time and vertical jump height in rugby players
- Authors: Conradie, Érnsl
- Date: 2014-04-01
- Subjects: Muscles - Motility , Chiropractic , Spinal adjustment , Rugby football - Physiological aspects , Rugby football players - Health and hygiene
- Type: Thesis
- Identifier: uj:4566 , http://hdl.handle.net/10210/9914
- Description: M.Tech. (Chiropractic) , Objective: To determine the effect of chiropractic adjustive therapy to the lumbar spine and sacroiliac joints on performance indicators such as sprint times and vertical jump height in asymptomatic, moderate-to-highly-active rugby players. Any dysfunction in the spine can affect biomechanics; neurological functioning of the lumbar spine and sacroiliac joints, as well as the surrounding muscles, and can therefore decrease performance. Methods: The study involved 60 asymptomatic male participants who were moderate-to-highly-active individuals as determined by the International Physical Activity Questionnaire (IPAQ). The 60 participants were divided equally into two groups: the experimental group (n=30) received chiropractic adjustments to the lumbar spine and sacroiliac joints, and the control group (n=30) rested for five minutes. The study design was based on the once-off model. The objective data used in the study was obtained by the vertical jump height test and the 30-metre sprint speed test. These tests were used to test the participants‟ explosive power and speed, and were obtained before and after the intervention. The immediate effect was obtained by comparing the measurements of the performance indicators before and after the intervention. Results: The objective results showed that there were improvements in vertical jump height for both the forwards and the backs (rugby players) in the experimental group. Following the chiropractic adjustment, the forwards increased their vertical jump heights by 0.007m (0.5050m-0.4980m) and the backs by 0.017m (0.5245m-0.5075m). In the control group, the forwards jumped 0.01m (0.5071m-0.4971m) lower than before the five-minute rest, and the backs jumped 0.0053m higher (0.5396m-0.5343m). In the sprint speed test, both the forwards and the backs in both the experimental and the control groups performed better when they completed the indicators after the interventions. The forwards in the experimental group ran 0.146s (4.8050s-4.6590s) faster, while the backs ran 0.1055s (4.6040s-4.4985s) faster. In the control group, the forwards ran 0.1358s (5.0329s-4.8971s) faster, while the backs ran 0.0474s (4.6961s-4.6487s) faster. vii Conclusion: In the experimental group, the results demonstrated performance improvements in both the vertical jump height test and the sprint speed test for the forwards as well as the backs. In the control group, the backs performed better in the vertical jump height and the sprint speed test, while the forwards in the control group performed better in the vertical jump height test and worse in the sprint speed test. The improvements in the experimental group occurred for both the forwards and the backs, and were greater than for the control group. It can therefore be suggested that the improvements noted were as a result of the chiropractic adjustments having provided a biomechanical advantage.
- Full Text:
- Authors: Conradie, Érnsl
- Date: 2014-04-01
- Subjects: Muscles - Motility , Chiropractic , Spinal adjustment , Rugby football - Physiological aspects , Rugby football players - Health and hygiene
- Type: Thesis
- Identifier: uj:4566 , http://hdl.handle.net/10210/9914
- Description: M.Tech. (Chiropractic) , Objective: To determine the effect of chiropractic adjustive therapy to the lumbar spine and sacroiliac joints on performance indicators such as sprint times and vertical jump height in asymptomatic, moderate-to-highly-active rugby players. Any dysfunction in the spine can affect biomechanics; neurological functioning of the lumbar spine and sacroiliac joints, as well as the surrounding muscles, and can therefore decrease performance. Methods: The study involved 60 asymptomatic male participants who were moderate-to-highly-active individuals as determined by the International Physical Activity Questionnaire (IPAQ). The 60 participants were divided equally into two groups: the experimental group (n=30) received chiropractic adjustments to the lumbar spine and sacroiliac joints, and the control group (n=30) rested for five minutes. The study design was based on the once-off model. The objective data used in the study was obtained by the vertical jump height test and the 30-metre sprint speed test. These tests were used to test the participants‟ explosive power and speed, and were obtained before and after the intervention. The immediate effect was obtained by comparing the measurements of the performance indicators before and after the intervention. Results: The objective results showed that there were improvements in vertical jump height for both the forwards and the backs (rugby players) in the experimental group. Following the chiropractic adjustment, the forwards increased their vertical jump heights by 0.007m (0.5050m-0.4980m) and the backs by 0.017m (0.5245m-0.5075m). In the control group, the forwards jumped 0.01m (0.5071m-0.4971m) lower than before the five-minute rest, and the backs jumped 0.0053m higher (0.5396m-0.5343m). In the sprint speed test, both the forwards and the backs in both the experimental and the control groups performed better when they completed the indicators after the interventions. The forwards in the experimental group ran 0.146s (4.8050s-4.6590s) faster, while the backs ran 0.1055s (4.6040s-4.4985s) faster. In the control group, the forwards ran 0.1358s (5.0329s-4.8971s) faster, while the backs ran 0.0474s (4.6961s-4.6487s) faster. vii Conclusion: In the experimental group, the results demonstrated performance improvements in both the vertical jump height test and the sprint speed test for the forwards as well as the backs. In the control group, the backs performed better in the vertical jump height and the sprint speed test, while the forwards in the control group performed better in the vertical jump height test and worse in the sprint speed test. The improvements in the experimental group occurred for both the forwards and the backs, and were greater than for the control group. It can therefore be suggested that the improvements noted were as a result of the chiropractic adjustments having provided a biomechanical advantage.
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The immediate effect of cervical spine adjustments on movement time of the upper limb in athletes
- Authors: Van Rensburg, Janine
- Date: 2015-07-29
- Subjects: Arm - Movements , Muscles - Motility , Chiropractic , Spinal adjustment , Sports - Physiological aspects , Athletes - Health and hygiene
- Type: Thesis
- Identifier: uj:13811 , http://hdl.handle.net/10210/14109
- Description: M.Tech. (Chiropractic) , Purpose: Movement time is the time it takes an individual to perform an actual task. A faster and better movement can be invaluable in athletes using their upper limb. This study aims to see the immediate effect of a chiropractic adjustment on the segments innervating the upper limb, 05 to Ti spinal levels, to movement time in the upper limb, in athletes. Method: This study was a comparative study and consisted of two groups of fifteen. The participants were between the ages of eighteen and thirty five, with a half male to female ratio. The potential participants were examined and accepted according to the inclusion and exclusion criteria. The method of treatment administered to each participant was determined by group allocation. Group 1 received chiropractic adjustments to the segments innervating upper limb (C5-T1). Group 2 was the control group and did not receive treatment, only a rest period of ten minutes was given in between tests. Objective data findings were based on the above treatment protocols. Procedure: Treatment consisted of six treatment consultations with an additional follow up consultation over a three week period, with two consultations being performed per week interval. Objective data readings were taken at the beginning of the first, fourth and seventh consultations. Objective data was collected by the tapping task test and the movement time evaluator program. Analysis of collected data was performed by a statistician. The chiropractic adjustments used were based on restrictions identified during motion palpation and were applied on all the consultations. Results: Clinically significant results were found in group i, the treatment group. Showing a decrease in overall movement time, especially between visit i and visit 4, but also between visit 4 and visit 7. Group 2, the control group, showed a decrease in movement time before and after visit i, but this was only due to learning effect of performing the test for the second time. No statistical significance was found between visit 1 and visit 4 or visit 4 and visit 7.
- Full Text:
- Authors: Van Rensburg, Janine
- Date: 2015-07-29
- Subjects: Arm - Movements , Muscles - Motility , Chiropractic , Spinal adjustment , Sports - Physiological aspects , Athletes - Health and hygiene
- Type: Thesis
- Identifier: uj:13811 , http://hdl.handle.net/10210/14109
- Description: M.Tech. (Chiropractic) , Purpose: Movement time is the time it takes an individual to perform an actual task. A faster and better movement can be invaluable in athletes using their upper limb. This study aims to see the immediate effect of a chiropractic adjustment on the segments innervating the upper limb, 05 to Ti spinal levels, to movement time in the upper limb, in athletes. Method: This study was a comparative study and consisted of two groups of fifteen. The participants were between the ages of eighteen and thirty five, with a half male to female ratio. The potential participants were examined and accepted according to the inclusion and exclusion criteria. The method of treatment administered to each participant was determined by group allocation. Group 1 received chiropractic adjustments to the segments innervating upper limb (C5-T1). Group 2 was the control group and did not receive treatment, only a rest period of ten minutes was given in between tests. Objective data findings were based on the above treatment protocols. Procedure: Treatment consisted of six treatment consultations with an additional follow up consultation over a three week period, with two consultations being performed per week interval. Objective data readings were taken at the beginning of the first, fourth and seventh consultations. Objective data was collected by the tapping task test and the movement time evaluator program. Analysis of collected data was performed by a statistician. The chiropractic adjustments used were based on restrictions identified during motion palpation and were applied on all the consultations. Results: Clinically significant results were found in group i, the treatment group. Showing a decrease in overall movement time, especially between visit i and visit 4, but also between visit 4 and visit 7. Group 2, the control group, showed a decrease in movement time before and after visit i, but this was only due to learning effect of performing the test for the second time. No statistical significance was found between visit 1 and visit 4 or visit 4 and visit 7.
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