title: The effect of an off-feet conditioning protocol on performance and training load response to intermittent sprint training compared to an equivalent running based protocol

authors: Rogers, Timothy

subjects: sport

abstract: Training for maximal intensity actions can lead to muscle damage, muscle soreness, and neuromuscular fatigue if not carefully managed.  Due to this potential impact, coaches sometimes look to off-feet conditioning (OFC) as an alternative.
A training intervention compared an OFC protocol using cycle ergometer sprints with an equivalent running protocol. Seventeen (17) participants volunteered and completed the study. Following baseline testing participants were divided into a cycle (BIKE) or shuttle (RUN) group. Training intervention was 10-12 6 s sprint efforts with 80-seconds recovery. 
Post testing showed significant time effect for absolute (p=0.045), and substantial change for Mean Power (p=0.0606) for BIKE. There was a significant time effect in the shuttle test (p=0.008) for RUN. Substantial, non-significant improvements in performance were found in 10 m (p=0.261) 20 m time (p=0.307) and Peak Power (p=0.160) for BIKE. RPE was significantly higher in BIKE (p&lt;0.001). Next-day soreness was significantly higher for RUN (p&lt;0.001).
Neither intervention negatively affected any measure. The cycle protocol may benefit sprint running performance. This form of training may mitigate the impact of high volumes of run-based training by decreasing eccentric loading thus reducing soreness. OFC may be useful for maintaining performance without adding mechanical stress on the lower body.

text: The effect of an off-feet conditioning protocol on performance and training load response to intermittent sprint training compared to an equivalent running based protocol Training for maximal intensity actions can lead to muscle damage, muscle soreness, and neuromuscular fatigue if not carefully managed.  Due to this potential impact, coaches sometimes look to off-feet conditioning (OFC) as an alternative.
A training intervention compared an OFC protocol using cycle ergometer sprints with an equivalent running protocol. Seventeen (17) participants volunteered and completed the study. Following baseline testing participants were divided into a cycle (BIKE) or shuttle (RUN) group. Training intervention was 10-12 6 s sprint efforts with 80-seconds recovery. 
Post testing showed significant time effect for absolute (p=0.045), and substantial change for Mean Power (p=0.0606) for BIKE. There was a significant time effect in the shuttle test (p=0.008) for RUN. Substantial, non-significant improvements in performance were found in 10 m (p=0.261) 20 m time (p=0.307) and Peak Power (p=0.160) for BIKE. RPE was significantly higher in BIKE (p&lt;0.001). Next-day soreness was significantly higher for RUN (p&lt;0.001).
Neither intervention negatively affected any measure. The cycle protocol may benefit sprint running performance. This form of training may mitigate the impact of high volumes of run-based training by decreasing eccentric loading thus reducing soreness. OFC may be useful for maintaining performance without adding mechanical stress on the lower body.

year: 2025

title: Implementation of the supercapacitor-assisted surge absorber (SCASA) technique in a practical surge protector

authors: Fernando, Jayathu

abstract: Their combination of large continuous energy ratings and very large time constants allows supercapacitors to be used in surge protection circuits. This fact, supported by recent research publications and laboratory tests, has assisted the authors to propose a new surge protection circuit topology known as the supercapacitor-assisted surge absorber (SCASA). This technique utilizes a multi-winding transformer, common surge protector devices such as metal oxide Varistors (MOV) and/or semiconductor types combined with a supercapacitor sub-circuit to absorb part of the surge energy usually expected to dissipate within the MOV or the semiconductor. The paper presents design details and test results for a differential mode surge protector based on the SCASA technique where the test device was subjected to lightning-type surges defined in international standards for Class-A and Class B type protectors. The performance of a prototype based on Class-B waveforms of up to 6.6 kV surges generated from a lightning surge simulator are discussed in the paper. Its performance is compared with two commercially available surge protectors.

text: Implementation of the supercapacitor-assisted surge absorber (SCASA) technique in a practical surge protector Their combination of large continuous energy ratings and very large time constants allows supercapacitors to be used in surge protection circuits. This fact, supported by recent research publications and laboratory tests, has assisted the authors to propose a new surge protection circuit topology known as the supercapacitor-assisted surge absorber (SCASA). This technique utilizes a multi-winding transformer, common surge protector devices such as metal oxide Varistors (MOV) and/or semiconductor types combined with a supercapacitor sub-circuit to absorb part of the surge energy usually expected to dissipate within the MOV or the semiconductor. The paper presents design details and test results for a differential mode surge protector based on the SCASA technique where the test device was subjected to lightning-type surges defined in international standards for Class-A and Class B type protectors. The performance of a prototype based on Class-B waveforms of up to 6.6 kV surges generated from a lightning surge simulator are discussed in the paper. Its performance is compared with two commercially available surge protectors.

year: 2014

title: Empirical analysis of Pacific, Māori and ethnic pay gaps in New Zealand

authors: Cochrane, William

abstract: A descriptive profile of the four ethnic groups, by gender, is provided to illustrate the heterogeneities across populations in terms of a number of variables grouped into the following categories: individual characteristics, educational attainment, region, household and job-related characteristics. The main empirical analysis involves estimation of the statistical contribution of observed factors (within each of the aforementioned categories) towards explaining the ethnic pay gaps. As this research is primarily aimed as an input towards the Pacific Pay Gap Inquiry being conducted by the Human Rights Commission, we focus our summary of the key findings on the Pacific – European pay gap.
This includes variables on permanent contract status, an indicator if in part-time work, occupation, and industry. These results are therefore likely an indication of the strong role of occupational segregation in the labour market. An additional factor that had a relatively strong contribution to the pay gap, particularly for the Pacific – European female gap, was educational attainment. Overall, even after accounting for differences in job-related characteristics and educational attainment, amongst a number of other observed factors, it was still found that only 27 percent of the pay gap for Pacific males (relative to Europeans) could be explained; and the corresponding proportion for females was 39 percent. The remaining portion of the Pacific Pay Gap is likely to reflect a range of causes that cannot be quantified or disentangled in this analysis – such as not including other factors of importance as they weren’t observed in the data (for example, literacy proficiency or field of study for qualification attained); ethnic differences in preferences for non-wage components of the job; unconscious bias; and discrimination.

text: Empirical analysis of Pacific, Māori and ethnic pay gaps in New Zealand A descriptive profile of the four ethnic groups, by gender, is provided to illustrate the heterogeneities across populations in terms of a number of variables grouped into the following categories: individual characteristics, educational attainment, region, household and job-related characteristics. The main empirical analysis involves estimation of the statistical contribution of observed factors (within each of the aforementioned categories) towards explaining the ethnic pay gaps. As this research is primarily aimed as an input towards the Pacific Pay Gap Inquiry being conducted by the Human Rights Commission, we focus our summary of the key findings on the Pacific – European pay gap.
This includes variables on permanent contract status, an indicator if in part-time work, occupation, and industry. These results are therefore likely an indication of the strong role of occupational segregation in the labour market. An additional factor that had a relatively strong contribution to the pay gap, particularly for the Pacific – European female gap, was educational attainment. Overall, even after accounting for differences in job-related characteristics and educational attainment, amongst a number of other observed factors, it was still found that only 27 percent of the pay gap for Pacific males (relative to Europeans) could be explained; and the corresponding proportion for females was 39 percent. The remaining portion of the Pacific Pay Gap is likely to reflect a range of causes that cannot be quantified or disentangled in this analysis – such as not including other factors of importance as they weren’t observed in the data (for example, literacy proficiency or field of study for qualification attained); ethnic differences in preferences for non-wage components of the job; unconscious bias; and discrimination.

year: 2022-07